{"id":1085,"date":"2019-05-13T08:37:38","date_gmt":"2019-05-13T00:37:38","guid":{"rendered":"http:\/\/www.hightopo.com\/blog\/?p=1085"},"modified":"2019-05-13T08:37:38","modified_gmt":"2019-05-13T00:37:38","slug":"%e5%9f%ba%e4%ba%8e-html5-webgl-%e7%9a%84%e6%8c%96%e6%8e%98%e6%9c%ba-3d-%e5%8f%af%e8%a7%86%e5%8c%96%e5%ba%94%e7%94%a8","status":"publish","type":"post","link":"https:\/\/www.hightopo.com\/blog\/1085.html","title":{"rendered":"\u57fa\u4e8e HTML5 WebGL \u7684\u6316\u6398\u673a 3D \u53ef\u89c6\u5316\u5e94\u7528"},"content":{"rendered":"<p><span style=\"font-size: 18pt;\"><strong>\u524d\u8a00<\/strong><\/span><\/p>\n<p>\u5728\u5de5\u4e1a\u4e92\u8054\u7f51\u4ee5\u53ca\u7269\u8054\u7f51\u7684\u5f71\u54cd\u4e0b\uff0c\u4eba\u4eec\u5bf9\u4e8e\u673a\u68b0\u7684\u7ba1\u7406\uff0c\u673a\u68b0\u7684\u53ef\u89c6\u5316\uff0c\u673a\u68b0\u7684\u64cd\u4f5c\u53ef\u89c6\u5316\u63d0\u51fa\u4e86\u66f4\u9ad8\u7684\u8981\u6c42\u3002\u5982\u4f55\u5728\u4e00\u4e2a\u7cfb\u7edf\u4e2d\u5b8c\u6574\u7684\u663e\u793a\u673a\u68b0\u7684\u8fd0\u884c\u60c5\u51b5\uff0c\u673a\u68b0\u7684\u8fd0\u884c\u8f68\u8ff9\uff0c\u6216\u8005\u673a\u68b0\u7684\u673a\u68b0\u52a8\u4f5c\u663e\u5f97\u5c24\u4e3a\u7684\u91cd\u8981\uff0c\u56e0\u4e3a\u8fd9\u4f1a\u5e2e\u52a9\u4e00\u4e2a\u4e0d\u4e86\u89e3\u8fd9\u4e2a\u673a\u68b0\u7684\u5c0f\u767d\u53ef\u4ee5\u76f4\u89c2\u7684\u4e86\u89e3\u673a\u68b0\u7684\u8fd0\u884c\u60c5\u51b5\uff0c\u4ee5\u53ca\u673a\u68b0\u7684\u6240\u6709\u53ef\u80fd\u53d1\u751f\u7684\u52a8\u4f5c\uff0c\u5bf9\u4e8e<strong>\u4e09\u4e00<\/strong>\u6216\u8005\u5176\u5b83\u56fd\u5185\u56fd\u5916\u91cd\u5de5\u673a\u68b0\u7684\u516c\u53f8\u80fd\u591f\u6709\u4e00\u4e2a\u66f4\u597d\u7684\u5c55\u793a\u6216\u8005\u63a8\u5e7f\u3002<br \/>\n\u6316\u6398\u673a\uff0c\u53c8\u79f0<strong>\u6316\u6398\u673a\u68b0(excavating machinery)<\/strong>\uff0c\u4ece\u8fd1\u51e0\u5e74\u5de5\u7a0b\u673a\u68b0\u7684\u53d1\u5c55\u6765\u770b\uff0c\u6316\u6398\u673a\u7684\u53d1\u5c55\u76f8\u5bf9\u8f83\u5feb\uff0c\u6316\u6398\u673a\u5df2\u7ecf\u6210\u4e3a\u5de5\u7a0b\u5efa\u8bbe\u4e2d\u6700\u4e3b\u8981\u7684\u5de5\u7a0b\u673a\u68b0\u4e4b\u4e00\u3002\u6240\u4ee5\u8be5\u7cfb\u7edf\u5b9e\u73b0\u4e86\u5bf9\u6316\u6398\u673a\u7684 3D \u53ef\u89c6\u5316\uff0c\u5728\u4f20\u7edf\u884c\u4e1a\u4e00\u822c\u90fd\u662f\u57fa\u4e8e <strong>Web SCADA<\/strong>\u00a0\u7684\u524d\u7aef\u6280\u672f\u6765\u5b9e\u73b0 2D \u53ef\u89c6\u5316\u76d1\u63a7\uff0c\u800c\u4e14\u90fd\u662f 2D \u9762\u677f\u90e8\u5206\u6570\u636e\u7684\u76d1\u63a7\uff0c\u4ece\u540e\u53f0\u83b7\u53d6\u6570\u636e\u524d\u53f0\u663e\u793a\u6570\u636e\uff0c\u4f46\u662f\u5bf9\u4e8e\u6316\u6398\u673a\u672c\u8eab\u6765\u8bf4\uff0c\u6316\u6398\u673a\u7684\u6a21\u578b\uff0c\u6316\u6398\u673a\u7684\u52a8\u4f5c\uff0c\u6316\u6398\u673a\u7684\u8fd0\u884c\u53ef\u89c6\u5316\u5374\u662f\u66f4\u8ba9\u4eba\u773c\u524d\u4e00\u4eae\u7684\uff0c\u6240\u4ee5\u8be5\u7cfb\u7edf\u5bf9\u4e8e\u6316\u673a\u7684 3D \u6a21\u578b\u505a\u51fa\u4e86\u52a8\u4f5c\u7684\u53ef\u89c6\u5316\uff0c\u5927\u4f53\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n<ul>\n<li>\u524d\u8fdb\u540e\u9000 &#8212; \u7528\u6237\u53ef\u4ee5\u901a\u8fc7\u952e\u76d8 wasd \u5b9e\u73b0\u524d\u540e\u5de6\u53f3\uff0c\u6216\u8005\u70b9\u51fb 2D \u754c\u9762 WASD \u6765\u5b9e\u73b0\u6316\u673a\u7684\u524d\u8fdb\u540e\u9000\u3002<\/li>\n<li>\u673a\u8eab\u65cb\u8f6c &#8212; \u7528\u6237\u53ef\u4ee5\u901a\u8fc7\u952e\u76d8\u5de6\u53f3\u952e\u5b9e\u73b0\u673a\u8eab\u7684\u65cb\u8f6c\uff0c\u6216\u8005\u70b9\u51fb 2D \u754c\u9762 &lt; &gt; \u6765\u5b9e\u73b0\u6316\u673a\u673a\u8eab\u7684\u65cb\u8f6c\u3002<\/li>\n<li>\u5927\u81c2\u65cb\u8f6c &#8212; \u7528\u6237\u53ef\u70b9\u51fb 2D \u754c\u9762\u7b2c\u4e00\u4e2a\u6ed1\u5757\u90e8\u5206\u5b9e\u73b0\u5927\u81c2\u7684\u65cb\u8f6c\u3002<\/li>\n<li>\u5c0f\u81c2\u65cb\u8f6c &#8212; \u7528\u6237\u53ef\u70b9\u51fb 2D \u754c\u9762\u7b2c\u4e8c\u4e2a\u6ed1\u5757\u90e8\u5206\u5b9e\u73b0\u5c0f\u81c2\u7684\u65cb\u8f6c\u3002<\/li>\n<li>\u6316\u6597\u6316\u6398 &#8212; \u7528\u6237\u53ef\u70b9\u51fb 2D \u754c\u9762\u7b2c\u4e09\u4e2a\u6ed1\u5757\u90e8\u5206\u5b9e\u73b0\u6316\u6597\u90e8\u5206\u7684\u65cb\u8f6c\u6316\u6398\u3002<\/li>\n<li>\u6316\u673a\u52a8\u753b &#8212; \u7528\u6237\u53ef\u70b9\u51fb 2D \u754c\u9762\u94f2\u5b50\u56fe\u6807\uff0c\u70b9\u51fb\u4e4b\u540e\u7cfb\u7edf\u4f1a\u628a\u6316\u673a\u672c\u8eab\u51e0\u4e2a\u52a8\u753b\u505a\u4e00\u4e2a\u4e32\u8054\u5c55\u793a\u3002<\/li>\n<\/ul>\n<p>\u672c\u7bc7\u6587\u7ae0\u901a\u8fc7\u5bf9\u6316\u6398\u673a\u53ef\u89c6\u5316\u573a\u666f\u7684\u642d\u5efa\uff0c\u6316\u673a\u673a\u68b0\u52a8\u4f5c\u4ee3\u7801\u7684\u5b9e\u73b0\u8fdb\u884c\u9610\u8ff0\uff0c\u5e2e\u52a9\u6211\u4eec\u4e86\u89e3\u5982\u4f55\u4f7f\u7528 <strong><a href=\"https:\/\/hightopo.com\/\" target=\"_blank\">HT<\/a><\/strong>\u00a0\u5b9e\u73b0\u4e00\u4e2a\u6316\u6398\u673a\u7684\u53ef\u89c6\u5316\u3002<\/p>\n<p>\u9884\u89c8\u5730\u5740\uff1a<strong><a href=\"http:\/\/www.hightopo.com\/demo\/ht-excavator\/\" target=\"_blank\">\u57fa\u4e8e HTML5 WebGL \u7684\u6316\u6398\u673a 3D \u53ef\u89c6\u5316\u5e94\u7528<\/a>\u00a0<a href=\"http:\/\/www.hightopo.com\/demo\/ht-excavator\/\" target=\"_blank\">http:\/\/www.hightopo.com\/demo\/ht-excavator\/<\/a><\/strong><\/p>\n<p><span style=\"font-size: 18pt;\"><strong>\u754c\u9762\u6548\u679c\u9884\u89c8<\/strong><\/span><\/p>\n<p><span style=\"font-size: 14pt;\"><strong>\u6316\u673a\u673a\u68b0\u8fd0\u52a8\u6548\u679c<\/strong><\/span><\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u6316\u673a\u673a\u68b0\u8fd0\u52a8\u6548\u679c.gif\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1086\" alt=\"\u6316\u673a\u673a\u68b0\u8fd0\u52a8\u6548\u679c\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u6316\u673a\u673a\u68b0\u8fd0\u52a8\u6548\u679c.gif\" width=\"640\" height=\"354\" \/><\/a><\/p>\n<p>\u901a\u8fc7\u4e0a\u9762 gif \u56fe\u7247\u53ef\u4ee5\u770b\u51fa\u6316\u6398\u673a\u7684\u51e0\u4e2a\u4e3b\u8981\u52a8\u4f5c\u3002<\/p>\n<p><span style=\"font-size: 14pt;\"><strong>\u6316\u673a\u6316\u6597\u8fd0\u52a8\u6548\u679c<\/strong><\/span><\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u6316\u673a\u6316\u6597\u8fd0\u52a8\u6548\u679c.gif\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1087\" alt=\"\u6316\u673a\u6316\u6597\u8fd0\u52a8\u6548\u679c\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u6316\u673a\u6316\u6597\u8fd0\u52a8\u6548\u679c.gif\" width=\"640\" height=\"354\" \/><\/a><\/p>\n<p>\u6ed1\u52a8\u9875\u9762\u7684\u7b2c\u4e09\u4e2a\u6ed1\u6746\u63a7\u5236\u6316\u6597\u7684\u65cb\u8f6c\u6316\u6398\u3002<\/p>\n<p><span style=\"font-size: 14pt;\"><strong>\u6316\u673a\u673a\u8eab\u8fd0\u52a8<\/strong><\/span><\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u6316\u673a\u673a\u8eab\u8fd0\u52a8.gif\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1088\" alt=\"\u6316\u673a\u673a\u8eab\u8fd0\u52a8\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u6316\u673a\u673a\u8eab\u8fd0\u52a8.gif\" width=\"640\" height=\"354\" \/><\/a><\/p>\n<p>\u901a\u8fc7\u4e0a\u9762 gif \u56fe\u7247\u53ef\u4ee5\u770b\u51fa\u6316\u6398\u673a\u7684\u524d\u8fdb\u540e\u9000\u4ee5\u53ca\u673a\u8eab\u65cb\u8f6c\u51e0\u4e2a\u8fd0\u52a8\u3002<\/p>\n<p><span style=\"font-size: 18pt;\"><strong>\u573a\u666f\u642d\u5efa<\/strong><\/span><\/p>\n<p>\u8be5 3D \u573a\u666f\u4e2d\u6240\u6709\u5f62\u72b6\u90fd\u662f\u7528 <strong>HT<\/strong>\u00a0\u5185\u90e8\u7684<strong>\u5899\u9762<\/strong>\u5de5\u5177\u8fdb\u884c\u6784\u5efa\uff0c\u901a\u8fc7\u8bbe\u7f6e\u5899\u9762\u900f\u660e\u5c5e\u6027 <strong>shape3d.transparent<\/strong>\u00a0\u4e3a true \u4ee5\u53ca\u5bf9\u6784\u5efa\u51fa\u7684\u5899\u9762\u8fdb\u884c\u8d34\u56fe\u6765\u6784\u9020\u51fa\u573a\u666f\u4e2d\u7684\u7c7b\u4f3c\u5efa\u7b51\u7684\u663e\u793a\u6548\u679c\uff0c\u5177\u4f53\u7684\u6837\u5f0f\u53ef\u4ee5\u53c2\u8003 HT \u7684 <strong><a href=\"https:\/\/hightopo.com\/guide\/guide\/core\/theme\/ht-theme-guide.html\" target=\"_blank\">\u98ce\u683c\u624b\u518c<\/a><\/strong>\uff0c\u573a\u666f\u6548\u679c\uff1a<\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u573a\u666f.jpg\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1089\" alt=\"\u573a\u666f\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u573a\u666f.jpg\" width=\"836\" height=\"509\/\" \/><\/a><\/p>\n<p>\u901a\u8fc7\u4e0a\u56fe\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u573a\u666f\u4e2d\u6709\u8bb8\u8bb8\u591a\u591a\u7684\u5899\u9762\u5efa\u7b51\uff0c\u6240\u4ee5\u5b83\u4eec\u6709\u8bb8\u591a\u76f8\u540c\u7684\u5730\u65b9\uff0c\u4f8b\u5982\u6837\u5f0f\u4ee5\u53ca\u8d34\u56fe\u90fd\u662f\u4e00\u6837\u7684\uff0c\u6240\u4ee5\u5728 <strong>HT<\/strong>\u00a0\u4e2d\u53ef\u4ee5\u901a\u8fc7<strong>\u6279\u91cf<\/strong>\u7684\u64cd\u4f5c\u5bf9\u8fd9\u4e9b\u5899\u9762\u8fdb\u884c\u5904\u7406\uff0c\u6279\u91cf\u7684\u610f\u601d\u6307\u7684\u662f\u5728\u5f53\u524d\u672a\u5904\u7406\u7684\u60c5\u51b5\u4e0b\u7684\u5899\u9762\u56fe\u5143\u662f\u4e00\u4e2a\u4e2a\u72ec\u7acb\u7ed8\u5236\u7684\u6a21\u578b\uff0c\u6240\u4ee5\u6027\u80fd\u4f1a\u6bd4\u8f83\u5dee\uff0c\u800c\u5f53\u4e00\u6279\u56fe\u5143\u805a\u5408\u6210\u4e00\u4e2a\u5927\u6a21\u578b\u8fdb\u884c\u4e00\u6b21\u6027\u7684\u7ed8\u5236\u65f6\uff0c\u5219\u4f1a\u6781\u5927\u63d0\u9ad8 WebGL \u5237\u65b0\u6027\u80fd\uff0c\u8fd9\u5c31\u662f\u6279\u91cf\u6240\u4ee5\u8981\u505a\u7684\u4e8b\u60c5\uff0c\u5177\u4f53\u53ef\u4ee5\u53c2\u8003 <strong>HT<\/strong>\u00a0\u7684 <strong><a href=\"https:\/\/hightopo.com\/guide\/guide\/core\/batch\/ht-batch-guide.html\" target=\"_blank\">\u6279\u91cf\u624b\u518c<\/a><\/strong>\u3002<\/p>\n<p>\u8be5\u7cfb\u7edf 2d \u9762\u677f\u90e8\u5206\u5219\u4e5f\u662f\u901a\u8fc7 <strong>HT<\/strong>\u00a0\u7684<strong>\u77e2\u91cf<\/strong>\u8fdb\u884c\u7ed8\u5236\uff0c\u9762\u677f\u90e8\u5206\u4e3b\u8981\u5305\u62ec\u5f53\u524d\u6316\u673a\u7684\u4f5c\u4e1a\u60c5\u51b5\uff0c\u5de5\u4f5c\u65f6\u95f4\uff0c\u4fdd\u4fee\u4fe1\u606f\uff0c\u6545\u969c\u4fe1\u606f\u7b49\uff0c\u901a\u8fc7\u4e8c\u7ef4\u7684\u65b9\u5f0f\u5c55\u793a\u8fd9\u4e9b\u6570\u636e\u4fe1\u606f\uff0c\u9762\u677f\u622a\u56fe\uff1a<\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u9762\u677f.jpg\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1090\" alt=\"\u9762\u677f\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u9762\u677f.jpg\" width=\"836\" height=\"509\/\" \/><\/a><\/p>\n<p><span style=\"font-size: 18pt;\"><strong>\u673a\u68b0\u8fd0\u52a8\u4ee3\u7801\u5206\u6790<\/strong><\/span><\/p>\n<p>\u8be5\u7cfb\u7edf\u4e2d\u6316\u673a\u7684\u52a8\u4f5c\u662f\u5341\u5206\u7684\u91cd\u8981\u548c\u5173\u952e\u7684\uff0c\u5927\u5c0f\u81c2\u8fd0\u52a8\u65f6\u6db2\u538b\u6760\u8be5\u5982\u4f55\u8fd0\u52a8\uff0c\u6316\u6597\u8fd0\u52a8\u65f6\u6db2\u538b\u6746\uff0c\u65cb\u8f6c\u70b9\u96f6\u4ef6\uff0c\u4ee5\u53ca\u8fde\u63a5\u5230\u6316\u6597\u4e0a\u7684\u96f6\u90e8\u4ef6\u5982\u4f55\u8054\u52a8\u8d77\u6765\u662f\u5173\u952e\u70b9\uff0c\u673a\u68b0\u52a8\u753b\u4e2d\u7528\u5230\u5927\u90e8\u5206\u6570\u5b66\u77e5\u8bc6\u8fdb\u884c\u70b9\u9762\u4f4d\u7f6e\u7684\u8ba1\u7b97\uff0c\u4ee5\u4e0b\u662f\u51e0\u4e2a\u5173\u952e\u7684\u6570\u5b66\u77e5\u8bc6\u70b9\u4f5c\u4e3a\u57fa\u7840\uff1a<\/p>\n<p>\u5728\u6570\u5b66\u4e2d\uff0c<strong>\u5411\u91cf<\/strong>\uff08\u4e5f\u79f0\u4e3a\u51e0\u4f55\u5411\u91cf\u3001\u77e2\u91cf\uff09\uff0c\u6307\u5177\u6709\u5927\u5c0f\u548c\u65b9\u5411\u7684\u91cf\u3002\u5b83\u53ef\u4ee5\u5f62\u8c61\u5316\u5730\u8868\u793a\u4e3a\u5e26\u7bad\u5934\u7684\u7ebf\u6bb5\u3002\u7cfb\u7edf\u4e2d\u4f1a\u901a\u8fc7\u5411\u91cf\u7684\u53c9\u4e58\u7b97\u51fa\u4e0e\u67d0\u4e2a\u9762\u5782\u76f4\u7684\u5411\u91cf\u5373\u6cd5\u5411\u91cf\uff0c\u5728\u8ba1\u7b97\u6316\u6597\u65cb\u8f6c\u65f6\u9700\u8981\u8ba1\u7b97\u51fa\u4e0e\u6316\u6597\u9762\u5782\u76f4\u7684\u6cd5\u5411\u91cf\u6765\u8fdb\u884c\u70b9\u7684\u8ba1\u7b97\uff0cHT \u4e2d\u5c01\u88c5\u4e86 <strong>ht.Math<\/strong>\u00a0\u7684\u6570\u5b66\u51fd\u6570\uff0c\u91cc\u9762\u7684 <strong>ht.Math.Vector2<\/strong>\u00a0\u6307\u7684\u5373\u4e3a\u4e8c\u7ef4\u5411\u91cf\uff0c<strong>ht.Math.Vector3<\/strong>\u00a0\u5219\u4e3a\u4e09\u7ef4\u7684\u5411\u91cf\uff0c\u53ef\u4ee5\u4f20\u5165\u4e09\u4e2a\u6570\u503c\u8fdb\u884c\u521d\u59cb\u5316\u5411\u91cf\uff0c\u5411\u91cf\u7684\u539f\u578b\u4e2d\u6709 <strong>cross<\/strong>\u00a0\u65b9\u6cd5\u7528\u6765\u8ba1\u7b97\u4e24\u4e2a\u5411\u91cf\u7684\u6cd5\u5411\u91cf\uff0c\u4f8b\u5982\u4ee5\u4e0b\u4f2a\u4ee3\u7801\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\">1<\/span> <span style=\"color: #0000ff;\">var<\/span> Vector3 =<span style=\"color: #000000;\"> ht.Math.Vector3;\r\n<\/span><span style=\"color: #008080;\">2<\/span> <span style=\"color: #0000ff;\">var<\/span> a = <span style=\"color: #0000ff;\">new<\/span> Vector3([10, 10, 0<span style=\"color: #000000;\">]);\r\n<\/span><span style=\"color: #008080;\">3<\/span> <span style=\"color: #0000ff;\">var<\/span> b = <span style=\"color: #0000ff;\">new<\/span> Vector3([10, 0, 0<span style=\"color: #000000;\">]);\r\n<\/span><span style=\"color: #008080;\">4<\/span> <span style=\"color: #0000ff;\">var<\/span> ab = a.clone().cross(b);<\/pre>\n<\/div>\n<p>\u4ee5\u4e0a\u4ee3\u7801\u4e2d ab \u5373\u4e3a\u8ba1\u7b97\u6cd5\u5411\u91cf\uff0ca.clone \u662f\u4e3a\u4e86\u907f\u514d cross \u8fd0\u7b97\u4f1a\u4fee\u6539\u539f\u672c\u7684 a \u5185\u5bb9\uff0c\u6240\u4ee5\u514b\u9686\u51fa\u4e00\u4e2a\u65b0\u7684\u5411\u91cf\u8fdb\u884c\u53c9\u4e58\uff0c\u4ee5\u4e0b\u4e3a\u793a\u610f\u56fe\uff1a<\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/1.png\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1091\" alt=\"1\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/1.png\" width=\"535\" height=\"480\" \/><\/a><\/p>\n<p><span style=\"font-size: 14pt;\"><strong>\u6316\u6597\u673a\u68b0\u8fd0\u52a8\u5206\u6790<\/strong><\/span><\/p>\n<p>\u5728\u8fdb\u884c\u6316\u6597\u90e8\u5206\u7684\u673a\u68b0\u4ee3\u7801\u65f6\u4f1a\u5c06\u6316\u6597\u7684\u4f4d\u7f6e\u4ee5\u53ca\u6316\u6597\u6240\u6709\u8fde\u63a5\u70b9\u7684\u8bbe\u5907\u8f6c\u5316\u4e3a\u76f8\u5bf9\u4e8e\u67d0\u4e2a\u8282\u70b9\u7684\u76f8\u5bf9\u4f4d\u7f6e\uff0c\u4f8b\u5982\u8282\u70b9 A \u5728\u4e16\u754c\u4e2d\u7684\u5750\u6807\u4e3a [100, 100, 100]\uff0c\u4e16\u754c\u4e2d\u8fd8\u6709\u4e00\u4e2a\u8282\u70b9 B\uff0c\u800c\u4e14\u8282\u70b9 B \u7684\u5750\u6807\u4e3a [10, 10, 10] \u5219\u8282\u70b9 A \u76f8\u5bf9\u4e8e\u8282\u70b9 B \u7684\u76f8\u5bf9\u4f4d\u7f6e\u5373\u4e3a [90, 90, 90]\uff0c\u56e0\u4e3a\u5728\u8ba1\u7b97\u6316\u6597\u7684\u4f4d\u7f6e\u65f6\uff0c\u6316\u673a\u53ef\u80fd\u6b64\u65f6\u5df2\u7ecf\u8fd0\u52a8\u5230\u67d0\u4e00\u70b9\u6216\u8005\u65cb\u8f6c\u5230\u67d0\u4e00\u4e2a\u8f74\uff0c\u6240\u4ee5\u6b64\u65f6\u4e0d\u80fd\u4f7f\u7528\u76f8\u5bf9\u4e16\u754c\u7684\u5750\u6807\uff0c\u9700\u8981\u4f7f\u7528\u76f8\u5bf9\u6316\u673a\u673a\u8eab\u7684\u76f8\u5bf9\u5750\u6807\u6765\u8fdb\u884c\u8ba1\u7b97\uff0c\u4ee3\u7801\u4e2d\u63d0\u4f9b\u4e86 <strong>toLocalPostion(node, worldPosition)<\/strong>\u00a0\u7528\u6765\u5c06\u4e16\u754c\u7684\u5750\u6807 worldPosition \u8f6c\u5316\u4e3a\u76f8\u5bf9 node \u7684\u76f8\u5bf9\u5750\u6807\uff0c\u4ee5\u4e0b\u4e3a\u4ee3\u7801\u5b9e\u73b0\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\">1<\/span> <span style=\"color: #0000ff;\">var<\/span> Matrix4 =<span style=\"color: #000000;\"> ht.Math.Matrix4,\r\n<\/span><span style=\"color: #008080;\">2<\/span> Vector3 =<span style=\"color: #000000;\"> ht.Math.Vector3;\r\n<\/span><span style=\"color: #008080;\">3<\/span> <span style=\"color: #0000ff;\">var<\/span> mat = <span style=\"color: #0000ff;\">new<\/span> Matrix4().fromArray(<span style=\"color: #0000ff;\">this<\/span><span style=\"color: #000000;\">.getNodeMat(g3d, node)),\r\n<\/span><span style=\"color: #008080;\">4<\/span> matInverse = <span style=\"color: #0000ff;\">new<\/span><span style=\"color: #000000;\"> Matrix4().getInverse(mat),\r\n<\/span><span style=\"color: #008080;\">5<\/span> position = <span style=\"color: #0000ff;\">new<\/span><span style=\"color: #000000;\"> Vector3(worldPosition).applyMatrix4(matInverse);\r\n<\/span><span style=\"color: #008080;\">6<\/span> <span style=\"color: #0000ff;\">return<\/span> position.toArray();<\/pre>\n<\/div>\n<p>\u8be5\u51fd\u6570\u7684\u8fd4\u56de\u503c\u5373\u4e3a\u76f8\u5bf9\u5750\u6807\uff0c\u6316\u673a\u4e2d\u9700\u8981\u8f6c\u5316\u7684\u5750\u6807\u4e3a\u8fde\u63a5\u7740\u6316\u6597\u4ee5\u53ca\u5c0f\u81c2\u7684\u4e24\u4e2a\u96f6\u90e8\u4ef6\uff0c\u7cfb\u7edf\u4e2d\u7528 <strong>armHinge<\/strong>\u00a0\u4ee5\u53ca <strong>bucketHinge<\/strong>\u00a0\u6765\u5206\u522b\u8868\u793a\u5c0f\u81c2\u67a2\u7ebd\u4ee5\u53ca\u6316\u6597\u67a2\u7ebd\u8fd9\u4e24\u4e2a\u96f6\u90e8\u4ef6\uff0c\u53ef\u4ee5\u4ece\u4fa7\u9762\u6765\u770b\u6316\u6597\u7684\u52a8\u4f5c\uff0c\u4ece\u4e0b\u56fe\u53ef\u4ee5\u770b\u51fa\uff0c\u5173\u952e\u70b9\u662f\u7b97\u51fa\u4ea4\u70b9 P \u7684\u5750\u6807\uff0c\u4ea4\u70b9 P \u7684\u5750\u6807\u5219\u662f\u4ee5 armHinge \u4e0e bucketHinge\u4f4d\u7f6e\u4e3a\u5706\u5fc3\uff0carmHinge \u4e0e bucketHinge \u7684\u957f\u5ea6\u4e3a\u534a\u5f84\u7684\u4e24\u4e2a\u5706\u7684\u4ea4\u70b9\uff0c\u800c\u4e14\u8fd9\u4e24\u4e2a\u5706\u7684\u5706\u5fc3\u5728\u6316\u6597\u65cb\u8f6c\u7684\u8fc7\u7a0b\u4e2d\u662f\u4e0d\u65ad\u53d8\u5316\u7684\uff0c\u6240\u4ee5\u9700\u8981\u901a\u8fc7\u6570\u5b66\u8ba1\u7b97\u4e0d\u65ad\u7b97\u51fa\u4ea4\u70b9\u7684\u4f4d\u7f6e\uff0c\u4ee5\u4e0b\u4e3a\u793a\u610f\u56fe\uff1a<\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/1557044989241.jpg\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1092\" alt=\"1557044989241\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/1557044989241.jpg\" width=\"1426\" height=\"606\" \/><\/a><\/p>\n<p>\u901a\u8fc7\u4e0a\u56fe\u53ef\u4ee5\u77e5\u9053\u4ea4\u70b9\u7684\u4f4d\u7f6e\u6709\u4e24\u4e2a p1 \u4ee5\u53ca p2\uff0c\u7a0b\u5e8f\u4e2d\u901a\u8fc7\u8ba1\u7b97\u5706\u5fc3 1 \u4e0e\u5706\u5fc3 2 \u6784\u6210\u7684\u5411\u91cf c2ToC1\uff0c\u4ee5\u4e0b\u4e3a\u4f2a\u4ee3\u7801\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\">1<\/span> <span style=\"color: #0000ff;\">var<\/span> Vector2 =<span style=\"color: #000000;\"> ht.Math.Vector2;\r\n<\/span><span style=\"color: #008080;\">2<\/span> <span style=\"color: #0000ff;\">var<\/span> c2ToC1 = <span style=\"color: #0000ff;\">new<\/span> Vector2({ x: c1.x, y: c1.y }).sub(<span style=\"color: #0000ff;\">new<\/span> Vector2({ x: c2.x, y: c2.y }));<\/pre>\n<\/div>\n<p>c1 \u548c c2 \u4e3a armHinge \u4ee5\u53ca bucketHinge \u7684\u5706\u5fc3\u5750\u6807\uff0c\u63a5\u4e0b\u6765\u662f\u8ba1\u7b97\u5706\u5fc3 2 \u4e0e\u70b9 p1 \u4ee5\u53ca p2 \u6784\u6210\u7684\u5411\u91cf c2ToP1 \u4ee5\u53ca c2ToP2\uff0c\u4ee5\u4e0b\u4e3a\u4f2a\u4ee3\u7801\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\">1<\/span> <span style=\"color: #0000ff;\">var<\/span> Vector2 =<span style=\"color: #000000;\"> ht.Math.Vector2;\r\n<\/span><span style=\"color: #008080;\">2<\/span> <span style=\"color: #0000ff;\">var<\/span> c2ToP1 = <span style=\"color: #0000ff;\">new<\/span> Vector2({ x: p1.x, y: p1.y }).sub(<span style=\"color: #0000ff;\">new<\/span><span style=\"color: #000000;\"> Vector2({ x: c2.x, y: c2.y }));\r\n<\/span><span style=\"color: #008080;\">3<\/span> <span style=\"color: #0000ff;\">var<\/span> c2ToP2 = <span style=\"color: #0000ff;\">new<\/span> Vector2({ x: p2.x, y: p2.y }).sub(<span style=\"color: #0000ff;\">new<\/span> Vector2({ x: c2.x, y: c2.y }));<\/pre>\n<\/div>\n<p>\u901a\u8fc7\u4e0a\u8ff0\u64cd\u4f5c\u6211\u4eec\u53ef\u4ee5\u83b7\u5f97\u4e09\u4e2a\u5411\u91cf <strong>c2ToC1<\/strong>\uff0c<strong>c2ToP1<\/strong>\uff0c<strong>c2ToP2<\/strong>\u00a0\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u7528\u5230\u6211\u4e0a\u8ff0\u8bb2\u7684\u5411\u91cf\u53c9\u4e58\u7684\u6982\u5ff5\u8fdb\u884c p1 \u4e0e p2 \u70b9\u7684\u9009\u53d6\uff0c\u901a\u8fc7\u5411\u91cf c2ToC1 \u4e0e c2ToP1\uff0c\u4ee5\u53ca\u5411\u91cf c2ToC1 \u4e0e c2ToP2 \u5206\u522b\u8fdb\u884c\u53c9\u4e58\u5f97\u5230\u7684\u7ed3\u679c\u80af\u5b9a\u4e00\u4e2a\u662f\u5927\u4e8e 0 \u4e00\u4e2a\u5c0f\u4e8e 0\uff0c\u4e8c\u7ef4\u5411\u91cf\u7684\u53c9\u4e58\u53ef\u4ee5\u76f4\u63a5\u628a\u5b83\u4eec\u89c6\u4e3a 3d \u5411\u91cf\uff0cz\u8f74\u8865 0 \u7684\u4e09\u7ef4\u5411\u91cf\uff0c\u4e0d\u8fc7\u4e8c\u7ef4\u5411\u91cf\u53c9\u4e58\u7684\u7ed3\u679c <strong>result<\/strong>\u00a0\u4e0d\u662f\u5411\u91cf\u800c\u662f\u6570\u503c\uff0c\u5982\u679c result &gt; 0 \u65f6\uff0c\u90a3\u4e48 a \u6b63\u65cb\u8f6c\u5230 b \u7684\u89d2\u5ea6\u4e3a &lt;180\u00b0\uff0c\u5982\u679c k &lt; 0\uff0c\u90a3\u4e48 a \u6b63\u65cb\u8f6c\u5230 b \u7684\u89d2\u5ea6\u4e3a &gt;180\u00b0,\u5982\u679c k = 0 \u90a3\u4e48a\uff0cb\u5411\u91cf\u5e73\u884c\uff0c\u6240\u4ee5\u901a\u8fc7\u4e0a\u9762\u7684\u7406\u8bba\u77e5\u8bc6\u6211\u4eec\u53ef\u4ee5\u77e5\u9053\u7ed3\u679c\u80af\u5b9a\u662f\u4e00\u4e2a\u5927\u4e8e 0 \u4e00\u4e2a\u5c0f\u4e8e 0\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u7a0b\u5e8f\u4e2d\u6d4b\u4e0b\u53ef\u4ee5\u77e5\u9053\u6211\u4eec\u9700\u8981\u83b7\u53d6\u7684\u662f\u5927\u4e8e 0 \u7684\u90a3\u4e2a\u70b9 P1\uff0c\u6240\u4ee5\u6bcf\u6b21\u53ef\u4ee5\u901a\u8fc7\u4e0a\u8ff0\u7684\u65b9\u6cd5\u8fdb\u884c\u4e24\u4e2a\u4ea4\u70b9\u7684\u9009\u62e9\u3002<\/p>\n<p>\u4ee5\u4e0b\u4e3a\u6316\u6597\u90e8\u5206\u52a8\u753b\u7684\u6267\u884c\u6d41\u7a0b\u56fe\uff1a<\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u4ea4\u70b9\u6d41\u7a0b\u56fe.png\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1093\" alt=\"\u4ea4\u70b9\u6d41\u7a0b\u56fe\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u4ea4\u70b9\u6d41\u7a0b\u56fe.png\" width=\"1177\" height=\"268\" \/><\/a><\/p>\n<p>\u901a\u8fc7\u4e0a\u8ff0\u8fd0\u7b97\u4e4b\u540e\u6211\u4eec\u53ef\u4ee5\u83b7\u53d6\u5230\u6700\u7ec8\u9700\u8981\u7684\u70b9 P \u5750\u6807\uff0c\u70b9 P \u5750\u6807\u5373\u4e3a\u6316\u6597\u4e0e\u5c0f\u81c2\u8fde\u63a5\u90e8\u5206\u7684\u4e00\u4e2a\u91cd\u8981\u70b9\uff0c\u83b7\u53d6\u8be5\u70b9\u4e4b\u540e\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7 HT \u4e2d\u63d0\u4f9b\u7684 <strong>lookAtX<\/strong>\u00a0\u51fd\u6570\u6765\u5b9e\u73b0\u63a5\u4e0b\u6765\u7684\u64cd\u4f5c\uff0clookAtX \u51fd\u6570\u7684\u4f5c\u7528\u4e3a\u8ba9\u67d0\u4e2a\u7269\u4f53\u770b\u5411\u67d0\u4e00\u70b9\uff0c\u4f7f\u7528\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\">1<\/span> node.lookAtX(position, 'bottom');<\/pre>\n<\/div>\n<p>node \u5373\u4e3a\u9700\u8981\u770b\u5411\u67d0\u4e00\u4e2a\u70b9\u7684\u8282\u70b9\uff0cposition \u4e3a\u770b\u5411\u7684\u70b9\u7684\u5750\u6807\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u6709\u516d\u4e2a\u679a\u4e3e\u503c\u53ef\u4ee5\u9009\u62e9\uff0c\u5206\u522b\u4e3a &#8216;bottom&#8217;\uff0c&#8217;back&#8217;\uff0c&#8217;front&#8217;\uff0c&#8217;top&#8217;\uff0c&#8217;right&#8217;\uff0c&#8217;left&#8217;\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u7684\u4f5c\u7528\u662f\u5f53\u6211\u4eec\u9700\u8981\u628a\u67d0\u4e2a\u7269\u4f53\u770b\u5411\u67d0\u4e00\u4e2a\u70b9\u7684\u65f6\u5019\u6211\u4eec\u4e5f\u8981\u6307\u5b9a\u8be5\u7269\u4f53\u7684\u54ea\u4e00\u4e2a\u9762\u770b\u5411\u8be5\u70b9\uff0c\u6240\u4ee5\u9700\u8981\u63d0\u4f9b\u7b2c\u4e8c\u4e2a\u53c2\u6570\u6765\u660e\u786e\uff0c\u83b7\u53d6\u5230\u8be5\u51fd\u6570\u4e4b\u540e\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5c06 bucketHinge \u770b\u5411\u70b9 P\uff0carmHinge \u770b\u5411\u70b9 P\uff0c\u5c31\u53ef\u4ee5\u4fdd\u6301\u8fd9\u4e24\u4e2a\u8fde\u63a5\u7684\u8bbe\u5907\u6c38\u8fdc\u671d\u5411\u8be5\u70b9\uff0c\u4ee5\u4e0b\u4e3a\u90e8\u5206\u4f2a\u4ee3\u7801\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\">1<\/span> bucketHinge.lookAtX(P, 'front'<span style=\"color: #000000;\">);\r\n<\/span><span style=\"color: #008080;\">2<\/span> armHinge.lookAtX(P, 'bottom');<\/pre>\n<\/div>\n<p>\u6240\u4ee5\u901a\u8fc7\u4e0a\u8ff0\u64cd\u4f5c\u4e4b\u540e\u6211\u4eec\u5df2\u7ecf\u628a\u6316\u6597\u90e8\u5206\u7684\u4e24\u4e2a\u5173\u952e\u96f6\u4ef6\u7684\u4f4d\u7f6e\u5df2\u7ecf\u6446\u653e\u6b63\u786e\uff0c\u63a5\u4e0b\u6765\u662f\u8981\u6b63\u786e\u7684\u6446\u653e\u4e0e\u6316\u6597\u8fde\u63a5\u7684\u5c0f\u81c2\u4e0a\u6db2\u538b\u90e8\u5206\u7684\u4f4d\u7f6e\uff0c\u4e0b\u4e00\u90e8\u5206\u4e3a\u4ecb\u7ecd\u8be5\u8282\u70b9\u5982\u4f55\u8fdb\u884c\u6446\u653e\u3002<\/p>\n<p><span style=\"font-size: 14pt;\"><strong>\u6db2\u538b\u8054\u52a8\u5206\u6790<\/strong><\/span><\/p>\n<p>\u5728\u573a\u666f\u4e2d\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u6db2\u538b\u4e3b\u8981\u5206\u4e3a\u4e24\u4e2a\u90e8\u5206\uff0c\u4e00\u90e8\u5206\u4e3a\u767d\u8272\u7684\u8f83\u7ec6\u7684\u6db2\u538b\u6746\uff0c\u4e00\u90e8\u5206\u4e3a\u9ed1\u8272\u7684\u8f83\u539a\u7684\u6db2\u538b\u6746\uff0c\u767d\u8272\u7684\u6db2\u538b\u6746\u63d2\u5728\u9ed1\u8272\u7684\u6db2\u538b\u6746\u4e2d\uff0c\u6240\u4ee5\u5728\u5c0f\u81c2\u6216\u8005\u6316\u6597\u65cb\u8f6c\u7684\u8fc7\u7a0b\u4e2d\u6211\u4eec\u8981\u4fdd\u6301\u4e24\u4e2a\u8282\u70b9\u59cb\u7ec8\u4fdd\u6301\u76f8\u5bf9\u7684\u4f4d\u7f6e\uff0c\u901a\u8fc7\u4e0a\u4e00\u6b65\u9aa4\u4e2d\u6211\u4eec\u53ef\u4ee5\u77e5\u9053 <strong>lookAtX<\/strong>\u00a0\u8fd9\u4e2a\u51fd\u6570\u7684\u4f5c\u7528\uff0c\u6240\u4ee5\u5728\u6db2\u538b\u6746\u90e8\u5206\u6211\u4eec\u4e5f\u662f\u7167\u6837\u7528\u8be5\u51fd\u6570\u6765\u5b9e\u73b0\u3002<\/p>\n<p>\u5728\u4e0a\u4e00\u6b65\u6211\u4eec\u83b7\u53d6\u5230\u4e86\u6316\u6597\u65cb\u8f6c\u8fc7\u7a0b\u4e2d\u7684\u5173\u952e\u70b9 P\uff0c\u6240\u4ee5\u5728\u6316\u6597\u65cb\u8f6c\u7684\u8fc7\u7a0b\u6211\u4eec\u5c0f\u81c2\u4e0a\u7684\u6db2\u538b\u6746\u4e5f\u8981\u76f8\u5e94\u7684\u8fdb\u884c\u53d8\u5316\uff0c\u5177\u4f53\u7684\u64cd\u4f5c\u5c31\u662f\u5c06\u5c0f\u81c2\u7684\u767d\u8272\u6db2\u538b\u6746\u7684\u4f4d\u7f6e\u8bbe\u7f6e\u4e3a\u4e0a\u6b65\u4e2d\u8ba1\u7b97\u51fa\u6765\u7684\u70b9 P \u7684\u4f4d\u7f6e\uff0c\u5f53\u7136\u9700\u8981\u628a\u767d\u8272\u6db2\u538b\u6746\u7684\u951a\u70b9\u8fdb\u884c\u76f8\u5e94\u7684\u8bbe\u7f6e\uff0c\u4e4b\u540e\u8ba9\u767d\u8272\u6db2\u538b\u6746 lookAt \u9ed1\u8272\u6db2\u538b\u6746\uff0c\u540c\u65f6\u8ba9\u9ed1\u8272\u6db2\u538b\u6746 lookAt \u767d\u8272\u6db2\u538b\u6746\uff0c\u8fd9\u6837\u4e0b\u6765\u4e24\u4e2a\u6db2\u538b\u6746\u90fd\u5728\u4e92\u76f8\u770b\u7740\u5bf9\u65b9\uff0c\u6240\u4ee5\u5b83\u4eec\u5448\u73b0\u51fa\u6765\u7684\u6548\u679c\u5c31\u662f\u767d\u8272\u6db2\u538b\u6746\u5728\u9ed1\u8272\u6db2\u538b\u6746\u4e2d\u8fdb\u884c\u4f38\u7f29\uff0c\u4ee5\u4e0b\u4e3a\u4f2a\u4ee3\u7801\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\">1<\/span> <span style=\"color: #000000;\">bucketWhite.p3(P);\r\n<\/span><span style=\"color: #008080;\">2<\/span> bucketWhite.lookAtX(bucketBlack.p3(), 'top'<span style=\"color: #000000;\">);\r\n<\/span><span style=\"color: #008080;\">3<\/span> bucketBlack.lookAtX(P, 'bottom');<\/pre>\n<\/div>\n<p>\u4ee3\u7801\u4e2d <strong>bucketWhite<\/strong>\u00a0\u8282\u70b9\u5373\u4e3a\u5c0f\u81c2\u4e0a\u767d\u8272\u6db2\u538b\u6746\uff0c<strong>bucketBlack<\/strong>\u00a0\u8282\u70b9\u4e3a\u5c0f\u81c2\u4e0a\u9ed1\u8272\u6db2\u538b\u6746\uff0c\u901a\u8fc7\u4ee5\u4e0a\u7684\u8bbe\u7f6e\u5c31\u53ef\u4ee5\u5b9e\u73b0\u4f38\u7f29\u7684\u52a8\u753b\u6548\u679c\uff0c\u4ee5\u4e0b\u4e3a\u6db2\u538b\u7684\u8fd0\u884c\u56fe\uff1a<\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u6db2\u538b.gif\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1094\" alt=\"\u6db2\u538b\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u6db2\u538b.gif\" width=\"640\" height=\"354\" \/><\/a><\/p>\n<p>\u540c\u7406\u6316\u673a\u8eab\u4e0a\u7684\u5927\u81c2\u7684\u6db2\u538b\u52a8\u4f5c\u4ee5\u53ca\u673a\u8eab\u4e0e\u5927\u81c2\u8fde\u63a5\u90e8\u5206\u7684\u6db2\u538b\u52a8\u4f5c\u90fd\u662f\u4f7f\u7528\u4e0a\u9762\u7684\u65b9\u6cd5\u6765\u5b9e\u73b0\uff0c\u4ee5\u4e0b\u4e3a\u8fd9\u4e24\u90e8\u5206\u7684\u4ee3\u7801\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\"> 1<\/span> rotateBoom: (rotateVal) = &gt;<span style=\"color: #000000;\">{\r\n<\/span><span style=\"color: #008080;\"> 2<\/span>     excavatorBoomNode.setRotationX(dr *<span style=\"color: #000000;\"> rotateVal);\r\n<\/span><span style=\"color: #008080;\"> 3<\/span>     let archorVector = [0.5 - 0.5, 0.56 - 0.5, 0.22 - 0.5<span style=\"color: #000000;\">];\r\n<\/span><span style=\"color: #008080;\"> 4<\/span>     let pos =<span style=\"color: #000000;\"> projectUtil.toWorldPosition(g3d, excavatorBoomNode, archorVector);\r\n<\/span><span style=\"color: #008080;\"> 5<\/span>     boomWhite.lookAtX(boomBlack.p3(), 'bottom'<span style=\"color: #000000;\">);\r\n<\/span><span style=\"color: #008080;\"> 6<\/span>     boomBlack.lookAtX(pos, 'top'<span style=\"color: #000000;\">);\r\n<\/span><span style=\"color: #008080;\"> 7<\/span> <span style=\"color: #000000;\">},\r\n<\/span><span style=\"color: #008080;\"> 8<\/span> rotateArm: (rotateVal) = &gt;<span style=\"color: #000000;\">{\r\n<\/span><span style=\"color: #008080;\"> 9<\/span>     projectUtil.applyRelativeRotation(excavatorArmNode, excavatorBoomNode, -<span style=\"color: #000000;\">rotateVal);\r\n<\/span><span style=\"color: #008080;\">10<\/span>     let archorVector = [0.585 - 0.5, 0.985 - 0.5, 0.17 - 0.5<span style=\"color: #000000;\">];\r\n<\/span><span style=\"color: #008080;\">11<\/span>     let pos =<span style=\"color: #000000;\"> projectUtil.toWorldPosition(g3d, excavatorArmNode, archorVector);\r\n<\/span><span style=\"color: #008080;\">12<\/span>     armWhite.lookAtX(armBlack.p3(), 'bottom'<span style=\"color: #000000;\">);\r\n<\/span><span style=\"color: #008080;\">13<\/span>     armBlack.lookAtX(pos, 'top'<span style=\"color: #000000;\">);\r\n<\/span><span style=\"color: #008080;\">14<\/span> }<\/pre>\n<\/div>\n<p>\u6211\u5c06\u4e24\u90e8\u5206\u7684\u8fd0\u52a8\u5c01\u88c5\u4e3a\u4e24\u4e2a\u51fd\u6570 rotateBoom \u4ee5\u53ca rotateArm \u5206\u522b\u662f\u5927\u81c2\u4e0e\u673a\u8eab\u8fde\u63a5\u5904\u7684\u6db2\u538b\u8fd0\u52a8\u4e0e\u5927\u81c2\u4e0a\u7684\u6db2\u538b\u8fd0\u52a8\uff0c\u5728\u8be5\u90e8\u5206\u4e2d\u4e3a\u4e86\u7cbe\u786e\u7684\u83b7\u53d6\u770b\u5411\u7684\u70b9\uff0c\u6211\u901a\u8fc7 toWorldPosition \u65b9\u6cd5\u5c06\u76f8\u5bf9\u5750\u6807\u8f6c\u5316\u4e3a\u4e16\u754c\u5750\u6807\uff0c\u76f8\u5bf9\u5750\u6807\u4e3a\u9ed1\u767d\u6db2\u538b\u6746\u7684\u951a\u70b9\u5750\u6807\uff0c\u8f6c\u5316\u4e3a\u76f8\u5bf9\u5927\u81c2\u6216\u8005\u673a\u8eab\u7684\u4e16\u754c\u5750\u6807\u3002<\/p>\n<p><span style=\"font-size: 14pt;\"><strong>\u57fa\u672c\u8fd0\u52a8\u5206\u6790<\/strong><\/span><\/p>\n<p>\u6316\u673a\u7684\u57fa\u672c\u8fd0\u52a8\u5305\u62ec\u524d\u8fdb\u540e\u9000\uff0c\u673a\u8eab\u65cb\u8f6c\uff0c\u8fd9\u4e00\u90e8\u5206\u4f1a\u76f8\u5bf9\u4e0a\u9762\u7684\u8fd0\u52a8\u7b80\u5355\u8bb8\u591a\uff0c\u5728 HT \u7684\u4e09\u7ef4\u5750\u6807\u7cfb\u4e2d\uff0c\u4e0d\u65ad\u4fee\u6539\u6316\u673a\u673a\u8eab\u7684 x\uff0cy\uff0cz \u7684\u5750\u6807\u503c\u5c31\u53ef\u4ee5\u5b9e\u73b0\u6316\u673a\u7684\u524d\u8fdb\u540e\u9000\uff0c\u901a\u8fc7\u4fee\u6539\u673a\u8eab\u7684 y \u8f74\u65cb\u8f6c\u89d2\u5ea6\u5219\u53ef\u4ee5\u63a7\u5236\u673a\u8eab\u7684\u65cb\u8f6c\uff0c\u5f53\u7136\u6316\u673a\u8eab\u4f53\u4e0a\u7684\u6240\u6709\u5176\u5b83\u96f6\u90e8\u4ef6\u9700\u8981\u5438\u9644\u5728\u673a\u8eab\u8eab\u4e0a\uff0c\u5f53\u673a\u8eab\u8fdb\u884c\u65cb\u8f6c\u65f6\u5176\u5b83\u96f6\u90e8\u4ef6\u5219\u4f1a\u8fdb\u884c\u76f8\u5e94\u7684\u65cb\u8f6c\uff0c\u5728\u8fdb\u884c\u524d\u8fdb\u7684\u65f6\u5019\u6316\u673a\u5e95\u90e8\u7684\u5c65\u5e26\u4f1a\u8fdb\u884c\u5bf9\u5e94\u7684\u6eda\u52a8\uff0c\u5f53\u7136\u5c65\u5e26\u6211\u4eec\u8fd9\u8fb9\u662f\u7528\u4e86\u4e00\u4e2a\u5c65\u5e26\u7684\u8d34\u56fe\u8d34\u5728\u4e0a\u9762\uff0c\u5f53\u6316\u673a\u524d\u8fdb\u7684\u65f6\u5019\u4fee\u6539\u8d34\u56fe\u7684\u504f\u79fb\u503c\u5c31\u53ef\u4ee5\u5b9e\u73b0\u5c65\u5e26\u7684\u6eda\u52a8\uff0c\u4fee\u6539\u504f\u79fb\u503c\u7684\u4f2a\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\">1<\/span> node.s('shape3d.uv.offset', [x, y]);<\/pre>\n<\/div>\n<p>\u4e0a\u9762\u7684 x\uff0cy \u5206\u522b\u4e3a x \u8f74\u4e0e y \u8f74\u65b9\u5411\u7684\u504f\u79fb\u503c\uff0c\u5728\u6316\u673a\u524d\u8fdb\u540e\u9000\u7684\u8fc7\u7a0b\u4e2d\u4e0d\u65ad\u4fee\u6539 y \u7684\u503c\u53ef\u4ee5\u5b9e\u73b0\u5c65\u5e26\u7684\u6eda\u52a8\u6548\u679c\uff0c\u5177\u4f53\u7684\u6587\u6863\u8bf4\u660e\u53ef\u4ee5\u67e5\u770b<strong> <a href=\"https:\/\/hightopo.com\/guide\/guide\/core\/3d\/ht-3d-guide.html\" target=\"_blank\">3D\u624b\u518c<\/a><\/strong><\/p>\n<p>\u5728\u6316\u673a\u524d\u8fdb\u540e\u9000\u7684\u8fc7\u7a0b\u4e2d\u6211\u4eec\u53ef\u4ee5 wasd \u56db\u4e2a\u952e\u540c\u65f6\u6309\u4e0b\uff0c\u5e76\u4e14\u53ef\u4ee5\u5bf9\u6309\u952e\u8fdb\u884c\u4e00\u76f4\u7684\u54cd\u5e94\uff0c\u5728 js \u4e2d\u53ef\u4ee5\u901a\u8fc7 document.addEventListener(&#8216;keydown&#8217;, (e) =&gt; {}) \u4ee5\u53ca document.addEventListener(&#8216;keyup&#8217;, (e) =&gt; {}) \u8fdb\u884c\u76d1\u542c\uff0c\u4f46\u662f\u8fd9\u53ea\u80fd\u6bcf\u6b21\u6267\u884c\u4e00\u6b21\u9700\u8981\u6267\u884c\u7684\u52a8\u4f5c\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u5728\u5916\u90e8\u8d77\u4e00\u4e2a\u5b9a\u65f6\u5668\uff0c\u6765\u6267\u884c keydown \u65f6\u5019\u9700\u8981\u4e0d\u65ad\u6267\u884c\u7684\u52a8\u4f5c\uff0c\u53ef\u4ee5\u7528\u4e00\u4e2a keyMap \u6765\u8bb0\u5f55\u5f53\u524d\u5df2\u7ecf\u70b9\u51fb\u7684\u6309\u952e\uff0c\u5728 keydown \u7684\u65f6\u5019\u7eaa\u5f55\u4e3a true \u5728 keyup \u7684\u65f6\u5019\u8bb0\u5f55\u4e3a false\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u5728\u5b9a\u65f6\u5668\u4e2d\u5224\u65ad\u8fd9\u4e2a bool \u503c\uff0c\u5f53\u4e3a true \u7684\u65f6\u5019\u5219\u6267\u884c\u76f8\u5e94\u7684\u52a8\u4f5c\uff0c\u5426\u5219\u4e0d\u6267\u884c\uff0c\u4ee5\u4e0b\u4e3a\u5bf9\u5e94\u7684\u90e8\u5206\u5173\u952e\u4ee3\u7801\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\"> 1<\/span> let key_pressed =<span style=\"color: #000000;\"> {\r\n<\/span><span style=\"color: #008080;\"> 2<\/span>     65<span style=\"color: #000000;\"> : {\r\n<\/span><span style=\"color: #008080;\"> 3<\/span>         status: <span style=\"color: #0000ff;\">false<\/span><span style=\"color: #000000;\">,\r\n<\/span><span style=\"color: #008080;\"> 4<\/span> <span style=\"color: #000000;\">        action: turnLeft\r\n<\/span><span style=\"color: #008080;\"> 5<\/span> <span style=\"color: #000000;\">    },\r\n<\/span><span style=\"color: #008080;\"> 6<\/span>     87<span style=\"color: #000000;\"> : {\r\n<\/span><span style=\"color: #008080;\"> 7<\/span>         status: <span style=\"color: #0000ff;\">false<\/span><span style=\"color: #000000;\">,\r\n<\/span><span style=\"color: #008080;\"> 8<\/span> <span style=\"color: #000000;\">        action: goAhead\r\n<\/span><span style=\"color: #008080;\"> 9<\/span> <span style=\"color: #000000;\">    },\r\n<\/span><span style=\"color: #008080;\">10<\/span>     68<span style=\"color: #000000;\"> : {\r\n<\/span><span style=\"color: #008080;\">11<\/span>         status: <span style=\"color: #0000ff;\">false<\/span><span style=\"color: #000000;\">,\r\n<\/span><span style=\"color: #008080;\">12<\/span> <span style=\"color: #000000;\">        action: turnRight\r\n<\/span><span style=\"color: #008080;\">13<\/span> <span style=\"color: #000000;\">    },\r\n<\/span><span style=\"color: #008080;\">14<\/span>     83<span style=\"color: #000000;\"> : {\r\n<\/span><span style=\"color: #008080;\">15<\/span>         status: <span style=\"color: #0000ff;\">false<\/span><span style=\"color: #000000;\">,\r\n<\/span><span style=\"color: #008080;\">16<\/span> <span style=\"color: #000000;\">        action: back\r\n<\/span><span style=\"color: #008080;\">17<\/span> <span style=\"color: #000000;\">    },\r\n<\/span><span style=\"color: #008080;\">18<\/span>     37<span style=\"color: #000000;\"> : {\r\n<\/span><span style=\"color: #008080;\">19<\/span>         status: <span style=\"color: #0000ff;\">false<\/span><span style=\"color: #000000;\">,\r\n<\/span><span style=\"color: #008080;\">20<\/span> <span style=\"color: #000000;\">        action: bodyTurnLeft\r\n<\/span><span style=\"color: #008080;\">21<\/span> <span style=\"color: #000000;\">    },\r\n<\/span><span style=\"color: #008080;\">22<\/span>     39<span style=\"color: #000000;\"> : {\r\n<\/span><span style=\"color: #008080;\">23<\/span>         status: <span style=\"color: #0000ff;\">false<\/span><span style=\"color: #000000;\">,\r\n<\/span><span style=\"color: #008080;\">24<\/span> <span style=\"color: #000000;\">        action: bodyTurnRight\r\n<\/span><span style=\"color: #008080;\">25<\/span> <span style=\"color: #000000;\">    }\r\n<\/span><span style=\"color: #008080;\">26<\/span> <span style=\"color: #000000;\">};\r\n<\/span><span style=\"color: #008080;\">27<\/span> setInterval(() = &gt;<span style=\"color: #000000;\">{\r\n<\/span><span style=\"color: #008080;\">28<\/span>     <span style=\"color: #0000ff;\">for<\/span> (let key <span style=\"color: #0000ff;\">in<\/span><span style=\"color: #000000;\"> key_pressed) {\r\n<\/span><span style=\"color: #008080;\">29<\/span> <span style=\"color: #000000;\">        let {\r\n<\/span><span style=\"color: #008080;\">30<\/span> <span style=\"color: #000000;\">            status,\r\n<\/span><span style=\"color: #008080;\">31<\/span> <span style=\"color: #000000;\">            action\r\n<\/span><span style=\"color: #008080;\">32<\/span>         } =<span style=\"color: #000000;\"> key_pressed[key];\r\n<\/span><span style=\"color: #008080;\">33<\/span>         <span style=\"color: #0000ff;\">if<\/span><span style=\"color: #000000;\"> (status) {\r\n<\/span><span style=\"color: #008080;\">34<\/span> <span style=\"color: #000000;\">            action();\r\n<\/span><span style=\"color: #008080;\">35<\/span> <span style=\"color: #000000;\">        }\r\n<\/span><span style=\"color: #008080;\">36<\/span> <span style=\"color: #000000;\">    }\r\n<\/span><span style=\"color: #008080;\">37<\/span> <span style=\"color: #000000;\">},\r\n<\/span><span style=\"color: #008080;\">38<\/span> 50<span style=\"color: #000000;\">);\r\n<\/span><span style=\"color: #008080;\">39<\/span> document.addEventListener('keydown', (event) = &gt;<span style=\"color: #000000;\">{\r\n<\/span><span style=\"color: #008080;\">40<\/span>     let keyCode =<span style=\"color: #000000;\"> event.keyCode;\r\n<\/span><span style=\"color: #008080;\">41<\/span>     key_pressed[keyCode] &amp;&amp; (key_pressed[keyCode].status = <span style=\"color: #0000ff;\">true<\/span><span style=\"color: #000000;\">);\r\n<\/span><span style=\"color: #008080;\">42<\/span> <span style=\"color: #000000;\">    event.stopPropagation();\r\n<\/span><span style=\"color: #008080;\">43<\/span> <span style=\"color: #000000;\">},\r\n<\/span><span style=\"color: #008080;\">44<\/span> <span style=\"color: #0000ff;\">true<\/span><span style=\"color: #000000;\">);\r\n<\/span><span style=\"color: #008080;\">45<\/span> document.addEventListener('keyup', (event) = &gt;<span style=\"color: #000000;\">{\r\n<\/span><span style=\"color: #008080;\">46<\/span>     let keyCode =<span style=\"color: #000000;\"> event.keyCode;\r\n<\/span><span style=\"color: #008080;\">47<\/span>     key_pressed[keyCode] &amp;&amp; (key_pressed[keyCode].status = <span style=\"color: #0000ff;\">false<\/span><span style=\"color: #000000;\">);\r\n<\/span><span style=\"color: #008080;\">48<\/span> <span style=\"color: #000000;\">    event.stopPropagation();\r\n<\/span><span style=\"color: #008080;\">49<\/span> <span style=\"color: #000000;\">},\r\n<\/span><span style=\"color: #008080;\">50<\/span> <span style=\"color: #0000ff;\">true<\/span>);<\/pre>\n<\/div>\n<p>\u4ece\u4e0a\u9762\u4ee3\u7801\u53ef\u4ee5\u770b\u51fa\u6211\u5728 key_pressed \u53d8\u91cf\u4e2d\u8bb0\u5f55\u5bf9\u5e94\u6309\u952e\u4ee5\u53ca\u6309\u952e\u5bf9\u5e94\u7684 action \u52a8\u4f5c\uff0c\u5728 keydown \u4e0e keyup \u7684\u65f6\u5019\u5bf9\u5e94\u4fee\u6539\u5f53\u524d key \u7684 status \u7684\u72b6\u6001\u503c\uff0c\u6240\u4ee5\u53ef\u4ee5\u5728 Interval \u4e2d\u6839\u636e key_pressed \u8fd9\u4e2a\u53d8\u91cf\u7684 status \u503c\u6267\u884c\u5bf9\u5e94\u7684 action \u52a8\u4f5c\uff0c\u4ee5\u4e0b\u4e3a\u6267\u884c\u6d41\u7a0b\u56fe\uff1a<\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u6309\u952e\u6d41\u7a0b\u56fe.png\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1095\" alt=\"\u6309\u952e\u6d41\u7a0b\u56fe\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u6309\u952e\u6d41\u7a0b\u56fe.png\" width=\"1156\" height=\"303\" \/><\/a><\/p>\n<p>HT \u7684\u8f7b\u91cf\u5316\uff0c\u81ea\u9002\u5e94\u8ba9\u5f53\u524d\u7cfb\u7edf\u5728\u624b\u673a\u7aef\u4e5f\u80fd\u6d41\u7545\u7684\u8fd0\u884c\uff0c\u5f53\u7136\u76ee\u524d\u79fb\u52a8\u7aef\u4e0e\u7535\u8111\u7aef\u7684 2D \u56fe\u7eb8\u90e8\u5206\u662f\u52a0\u8f7d\u4e0d\u540c\u7684\u56fe\u7eb8\uff0c\u5728\u79fb\u52a8\u7aef\u7684 2D \u90e8\u5206\u53ea\u7559\u4e0b\u64cd\u4f5c\u6316\u673a\u7684\u64cd\u4f5c\u90e8\u5206\uff0c\u5176\u5b83\u90e8\u5206\u8fdb\u884c\u4e86\u76f8\u5e94\u7684\u820d\u5f03\uff0c\u4e0d\u7136\u5728\u79fb\u52a8\u7aef\u5c0f\u5c4f\u5e55\u4e0b\u65e0\u6cd5\u5c55\u793a\u5982\u6b64\u591a\u7684\u6570\u636e\uff0c\u5728 3D \u573a\u666f\u90e8\u5206\u90fd\u662f\u5171\u7528\u540c\u4e00\u4e2a\u573a\u666f\uff0c\u901a\u8fc7\u573a\u666f\u642d\u5efa\u90e8\u5206\u7684\u6279\u91cf\u64cd\u4f5c\u4f7f\u5f97 3D \u5728\u624b\u673a\u7aef\u4e5f\u5341\u5206\u6d41\u7545\u7684\u8fd0\u884c\uff0c\u4ee5\u4e0b\u4e3a\u624b\u673a\u7aef\u8fd0\u884c\u622a\u56fe\uff1a<\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u624b\u673a.gif\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1096\" alt=\"\u624b\u673a\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u624b\u673a.gif\" width=\"416\" height=\"734\" \/><\/a><\/p>\n<p><span style=\"font-size: 18pt;\"><strong>\u603b\u7ed3<\/strong><\/span><\/p>\n<p>\u7269\u8054\u7f51\u5df2\u7ecf\u878d\u5165\u4e86\u73b0\u4ee3\u751f\u6d3b\uff0c\u901a\u8fc7\u5185\u5d4c\u5230\u673a\u68b0\u8bbe\u5907\u4e2d\u7684\u7535\u5b50\u8bbe\u5907\uff0c\u6211\u4eec\u80fd\u591f\u5b8c\u6210\u5bf9\u673a\u68b0\u8bbe\u5907\u7684\u8fd0\u8f6c\u3001\u6027\u80fd\u7684\u76d1\u63a7\uff0c\u4ee5\u53ca\u5bf9\u673a\u68b0\u8bbe\u5907\u51fa\u73b0\u7684\u95ee\u9898\u8fdb\u884c\u53ca\u65f6\u7684\u9884\u8b66\u3002\u5728\u8be5\u7cfb\u7edf 2D \u9762\u677f\u76d1\u63a7\u90e8\u5206\u5c31\u662f\u5bf9\u91c7\u96c6\u8fc7\u6765\u7684\u6570\u636e\u8fdb\u884c\u53ef\u89c6\u5316\u7684\u5c55\u793a\uff0c\u800c\u4e14\u6211\u4eec\u53ef\u4ee5\u501f\u52a9\u5927\u6570\u636e\u548c\u7269\u8054\u7f51\u6280\u672f\uff0c\u5c06\u4e00\u53f0\u53f0\u673a\u68b0\u901a\u8fc7\u673a\u8f7d\u63a7\u5236\u5668\u3001\u4f20\u611f\u5668\u548c\u65e0\u7ebf\u901a\u8baf\u6a21\u5757\uff0c\u4e0e\u4e00\u4e2a\u5e9e\u5927\u7684\u7f51\u7edc\u8fde\u63a5\uff0c\u6bcf\u6325\u52a8\u4e00\u94f2\u3001\u884c\u52a8\u4e00\u6b65\uff0c\u90fd\u5f62\u6210\u6570\u636e\u75d5\u8ff9\u3002\u5927\u6570\u636e\u7cbe\u51c6\u63cf\u7ed8\u51fa\u57fa\u7840\u5efa\u8bbe\u5f00\u5de5\u7387\u7b49\u60c5\u51b5\uff0c\u6210\u4e3a\u89c2\u5bdf\u56fa\u5b9a\u8d44\u4ea7\u6295\u8d44\u7b49\u7ecf\u6d4e\u53d8\u5316\u7684\u98ce\u5411\u6807\u3002\u6240\u4ee5\u5728\u5b9e\u73b0\u4e0a\u8ff0\u6316\u673a\u52a8\u4f5c\u4e4b\u540e\uff0c\u901a\u8fc7\u4e0e\u6316\u673a\u4f20\u611f\u5668\u8fdb\u884c\u8fde\u63a5\u4e4b\u540e\uff0c\u53ef\u4ee5\u5c06\u6316\u6398\u673a\u6b64\u65f6\u7684\u771f\u5b9e\u52a8\u4f5c\u901a\u8fc7\u6570\u636e\u4f20\u9012\u5230\u7cfb\u7edf\uff0c\u7cfb\u7edf\u5219\u4f1a\u6839\u636e\u52a8\u4f5c\u8fdb\u884c\u76f8\u5e94\u7684\u771f\u5b9e\u64cd\u4f5c\uff0c\u771f\u6b63\u5b9e\u73b0\u4e86\u6316\u673a\u4e0e\u7f51\u7edc\u7684\u4e92\u8054\u4e92\u901a\u3002<\/p>\n<p>\u7a0b\u5e8f\u8fd0\u884c\u622a\u56fe\uff1a<\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u8fd0\u884c\u622a\u56fe2.jpg\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1098\" alt=\"\u8fd0\u884c\u622a\u56fe2\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u8fd0\u884c\u622a\u56fe2.jpg\" width=\"500\" height=\"277\" \/><\/a><\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u8fd0\u884c\u622a\u56fe1.jpg\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1097\" alt=\"\u8fd0\u884c\u622a\u56fe1\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u8fd0\u884c\u622a\u56fe1.jpg\" width=\"500\" height=\"276\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p><span style=\"font-size: 18pt;\"><strong>\u524d\u8a00<\/strong><\/span><\/p>\n<p>\u5728\u5de5\u4e1a\u4e92\u8054\u7f51\u4ee5\u53ca\u7269\u8054\u7f51\u7684\u5f71\u54cd\u4e0b\uff0c\u4eba\u4eec\u5bf9\u4e8e\u673a\u68b0\u7684\u7ba1\u7406\uff0c\u673a\u68b0\u7684\u53ef\u89c6\u5316\uff0c\u673a\u68b0\u7684\u64cd\u4f5c\u53ef\u89c6\u5316\u63d0\u51fa\u4e86\u66f4\u9ad8\u7684\u8981\u6c42\u3002\u5982\u4f55\u5728\u4e00\u4e2a\u7cfb\u7edf\u4e2d\u5b8c\u6574\u7684\u663e\u793a\u673a\u68b0\u7684\u8fd0\u884c\u60c5\u51b5\uff0c\u673a\u68b0\u7684\u8fd0\u884c\u8f68\u8ff9\uff0c\u6216\u8005\u673a\u68b0\u7684\u673a\u68b0\u52a8\u4f5c\u663e\u5f97\u5c24\u4e3a\u7684\u91cd\u8981\uff0c\u56e0\u4e3a\u8fd9\u4f1a\u5e2e\u52a9\u4e00\u4e2a\u4e0d\u4e86\u89e3\u8fd9\u4e2a\u673a\u68b0\u7684\u5c0f\u767d\u53ef\u4ee5\u76f4\u89c2\u7684\u4e86\u89e3\u673a\u68b0\u7684\u8fd0\u884c\u60c5\u51b5\uff0c\u4ee5\u53ca\u673a\u68b0\u7684\u6240\u6709\u53ef\u80fd\u53d1\u751f\u7684\u52a8\u4f5c\uff0c\u5bf9\u4e8e<strong>\u4e09\u4e00<\/strong>\u6216\u8005\u5176\u5b83\u56fd\u5185\u56fd\u5916\u91cd\u5de5\u673a\u68b0\u7684\u516c\u53f8\u80fd\u591f\u6709\u4e00\u4e2a\u66f4\u597d\u7684\u5c55\u793a\u6216\u8005\u63a8\u5e7f\u3002<br \/>\n\u6316\u6398\u673a\uff0c\u53c8\u79f0<strong>\u6316\u6398\u673a\u68b0(excavating machinery)<\/strong>\uff0c\u4ece\u8fd1\u51e0\u5e74\u5de5\u7a0b\u673a\u68b0\u7684\u53d1\u5c55\u6765\u770b\uff0c\u6316\u6398\u673a\u7684\u53d1\u5c55\u76f8\u5bf9\u8f83\u5feb\uff0c\u6316\u6398\u673a\u5df2\u7ecf\u6210\u4e3a\u5de5\u7a0b\u5efa\u8bbe\u4e2d\u6700\u4e3b\u8981\u7684\u5de5\u7a0b\u673a\u68b0\u4e4b\u4e00\u3002\u6240\u4ee5\u8be5\u7cfb\u7edf\u5b9e\u73b0\u4e86\u5bf9\u6316\u6398\u673a\u7684 3D \u53ef\u89c6\u5316\uff0c\u5728\u4f20\u7edf\u884c\u4e1a\u4e00\u822c\u90fd\u662f\u57fa\u4e8e <strong>Web SCADA<\/strong>\u00a0\u7684\u524d\u7aef\u6280\u672f\u6765\u5b9e\u73b0 2D \u53ef\u89c6\u5316\u76d1\u63a7\uff0c\u800c\u4e14\u90fd\u662f 2D \u9762\u677f\u90e8\u5206\u6570\u636e\u7684\u76d1\u63a7\uff0c\u4ece\u540e\u53f0\u83b7\u53d6\u6570\u636e\u524d\u53f0\u663e\u793a\u6570\u636e\uff0c\u4f46\u662f\u5bf9\u4e8e\u6316\u6398\u673a\u672c\u8eab\u6765\u8bf4\uff0c\u6316\u6398\u673a\u7684\u6a21\u578b\uff0c\u6316\u6398\u673a\u7684\u52a8\u4f5c\uff0c\u6316\u6398\u673a\u7684\u8fd0\u884c\u53ef\u89c6\u5316\u5374\u662f\u66f4\u8ba9\u4eba\u773c\u524d\u4e00\u4eae\u7684\uff0c\u6240\u4ee5\u8be5\u7cfb\u7edf\u5bf9\u4e8e\u6316\u673a\u7684 3D \u6a21\u578b\u505a\u51fa\u4e86\u52a8\u4f5c\u7684\u53ef\u89c6\u5316\uff0c\u5927\u4f53\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\uff1a<\/p>\n<ul>\n<li>\u524d\u8fdb\u540e\u9000 &#8212; \u7528\u6237\u53ef\u4ee5\u901a\u8fc7\u952e\u76d8 wasd \u5b9e\u73b0\u524d\u540e\u5de6\u53f3\uff0c\u6216\u8005\u70b9\u51fb 2D \u754c\u9762 WASD \u6765\u5b9e\u73b0\u6316\u673a\u7684\u524d\u8fdb\u540e\u9000\u3002<\/li>\n<li>\u673a\u8eab\u65cb\u8f6c &#8212; \u7528\u6237\u53ef\u4ee5\u901a\u8fc7\u952e\u76d8\u5de6\u53f3\u952e\u5b9e\u73b0\u673a\u8eab\u7684\u65cb\u8f6c\uff0c\u6216\u8005\u70b9\u51fb 2D \u754c\u9762 &lt; &gt; \u6765\u5b9e\u73b0\u6316\u673a\u673a\u8eab\u7684\u65cb\u8f6c\u3002<\/li>\n<li>\u5927\u81c2\u65cb\u8f6c &#8212; \u7528\u6237\u53ef\u70b9\u51fb 2D \u754c\u9762\u7b2c\u4e00\u4e2a\u6ed1\u5757\u90e8\u5206\u5b9e\u73b0\u5927\u81c2\u7684\u65cb\u8f6c\u3002<\/li>\n<li>\u5c0f\u81c2\u65cb\u8f6c &#8212; \u7528\u6237\u53ef\u70b9\u51fb 2D \u754c\u9762\u7b2c\u4e8c\u4e2a\u6ed1\u5757\u90e8\u5206\u5b9e\u73b0\u5c0f\u81c2\u7684\u65cb\u8f6c\u3002<\/li>\n<li>\u6316\u6597\u6316\u6398 &#8212; \u7528\u6237\u53ef\u70b9\u51fb 2D \u754c\u9762\u7b2c\u4e09\u4e2a\u6ed1\u5757\u90e8\u5206\u5b9e\u73b0\u6316\u6597\u90e8\u5206\u7684\u65cb\u8f6c\u6316\u6398\u3002<\/li>\n<li>\u6316\u673a\u52a8\u753b &#8212; \u7528\u6237\u53ef\u70b9\u51fb 2D \u754c\u9762\u94f2\u5b50\u56fe\u6807\uff0c\u70b9\u51fb\u4e4b\u540e\u7cfb\u7edf\u4f1a\u628a\u6316\u673a\u672c\u8eab\u51e0\u4e2a\u52a8\u753b\u505a\u4e00\u4e2a\u4e32\u8054\u5c55\u793a\u3002<\/li>\n<\/ul>\n<p>\u672c\u7bc7\u6587\u7ae0\u901a\u8fc7\u5bf9\u6316\u6398\u673a\u53ef\u89c6\u5316\u573a\u666f\u7684\u642d\u5efa\uff0c\u6316\u673a\u673a\u68b0\u52a8\u4f5c\u4ee3\u7801\u7684\u5b9e\u73b0\u8fdb\u884c\u9610\u8ff0\uff0c\u5e2e\u52a9\u6211\u4eec\u4e86\u89e3\u5982\u4f55\u4f7f\u7528 <strong><a href=\"https:\/\/hightopo.com\/\" target=\"_blank\">HT<\/a><\/strong>\u00a0\u5b9e\u73b0\u4e00\u4e2a\u6316\u6398\u673a\u7684\u53ef\u89c6\u5316\u3002<\/p>\n<p>\u9884\u89c8\u5730\u5740\uff1a<strong><a href=\"http:\/\/www.hightopo.com\/demo\/ht-excavator\/\" target=\"_blank\">\u57fa\u4e8e HTML5 WebGL \u7684\u6316\u6398\u673a 3D \u53ef\u89c6\u5316\u5e94\u7528<\/a>\u00a0<a href=\"http:\/\/www.hightopo.com\/demo\/ht-excavator\/\" target=\"_blank\">http:\/\/www.hightopo.com\/demo\/ht-excavator\/<\/a><\/strong><\/p>\n<p><span style=\"font-size: 18pt;\"><strong>\u754c\u9762\u6548\u679c\u9884\u89c8<\/strong><\/span><\/p>\n<p><span style=\"font-size: 14pt;\"><strong>\u6316\u673a\u673a\u68b0\u8fd0\u52a8\u6548\u679c<\/strong><\/span><\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u6316\u673a\u673a\u68b0\u8fd0\u52a8\u6548\u679c.gif\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1086\" alt=\"\u6316\u673a\u673a\u68b0\u8fd0\u52a8\u6548\u679c\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u6316\u673a\u673a\u68b0\u8fd0\u52a8\u6548\u679c.gif\" width=\"640\" height=\"354\" \/><\/a><\/p>\n<p>\u901a\u8fc7\u4e0a\u9762 gif \u56fe\u7247\u53ef\u4ee5\u770b\u51fa\u6316\u6398\u673a\u7684\u51e0\u4e2a\u4e3b\u8981\u52a8\u4f5c\u3002<\/p>\n<p><span style=\"font-size: 14pt;\"><strong>\u6316\u673a\u6316\u6597\u8fd0\u52a8\u6548\u679c<\/strong><\/span><\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u6316\u673a\u6316\u6597\u8fd0\u52a8\u6548\u679c.gif\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1087\" alt=\"\u6316\u673a\u6316\u6597\u8fd0\u52a8\u6548\u679c\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u6316\u673a\u6316\u6597\u8fd0\u52a8\u6548\u679c.gif\" width=\"640\" height=\"354\" \/><\/a><\/p>\n<p>\u6ed1\u52a8\u9875\u9762\u7684\u7b2c\u4e09\u4e2a\u6ed1\u6746\u63a7\u5236\u6316\u6597\u7684\u65cb\u8f6c\u6316\u6398\u3002<\/p>\n<p><span style=\"font-size: 14pt;\"><strong>\u6316\u673a\u673a\u8eab\u8fd0\u52a8<\/strong><\/span><\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u6316\u673a\u673a\u8eab\u8fd0\u52a8.gif\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1088\" alt=\"\u6316\u673a\u673a\u8eab\u8fd0\u52a8\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u6316\u673a\u673a\u8eab\u8fd0\u52a8.gif\" width=\"640\" height=\"354\" \/><\/a><\/p>\n<p>\u901a\u8fc7\u4e0a\u9762 gif \u56fe\u7247\u53ef\u4ee5\u770b\u51fa\u6316\u6398\u673a\u7684\u524d\u8fdb\u540e\u9000\u4ee5\u53ca\u673a\u8eab\u65cb\u8f6c\u51e0\u4e2a\u8fd0\u52a8\u3002<\/p>\n<p><span style=\"font-size: 18pt;\"><strong>\u573a\u666f\u642d\u5efa<\/strong><\/span><\/p>\n<p>\u8be5 3D \u573a\u666f\u4e2d\u6240\u6709\u5f62\u72b6\u90fd\u662f\u7528 <strong>HT<\/strong>\u00a0\u5185\u90e8\u7684<strong>\u5899\u9762<\/strong>\u5de5\u5177\u8fdb\u884c\u6784\u5efa\uff0c\u901a\u8fc7\u8bbe\u7f6e\u5899\u9762\u900f\u660e\u5c5e\u6027 <strong>shape3d.transparent<\/strong>\u00a0\u4e3a true \u4ee5\u53ca\u5bf9\u6784\u5efa\u51fa\u7684\u5899\u9762\u8fdb\u884c\u8d34\u56fe\u6765\u6784\u9020\u51fa\u573a\u666f\u4e2d\u7684\u7c7b\u4f3c\u5efa\u7b51\u7684\u663e\u793a\u6548\u679c\uff0c\u5177\u4f53\u7684\u6837\u5f0f\u53ef\u4ee5\u53c2\u8003 HT \u7684 <strong><a href=\"https:\/\/hightopo.com\/guide\/guide\/core\/theme\/ht-theme-guide.html\" target=\"_blank\">\u98ce\u683c\u624b\u518c<\/a><\/strong>\uff0c\u573a\u666f\u6548\u679c\uff1a<\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u573a\u666f.jpg\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1089\" alt=\"\u573a\u666f\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u573a\u666f.jpg\" width=\"836\" height=\"509\/\" \/><\/a><\/p>\n<p>\u901a\u8fc7\u4e0a\u56fe\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u573a\u666f\u4e2d\u6709\u8bb8\u8bb8\u591a\u591a\u7684\u5899\u9762\u5efa\u7b51\uff0c\u6240\u4ee5\u5b83\u4eec\u6709\u8bb8\u591a\u76f8\u540c\u7684\u5730\u65b9\uff0c\u4f8b\u5982\u6837\u5f0f\u4ee5\u53ca\u8d34\u56fe\u90fd\u662f\u4e00\u6837\u7684\uff0c\u6240\u4ee5\u5728 <strong>HT<\/strong>\u00a0\u4e2d\u53ef\u4ee5\u901a\u8fc7<strong>\u6279\u91cf<\/strong>\u7684\u64cd\u4f5c\u5bf9\u8fd9\u4e9b\u5899\u9762\u8fdb\u884c\u5904\u7406\uff0c\u6279\u91cf\u7684\u610f\u601d\u6307\u7684\u662f\u5728\u5f53\u524d\u672a\u5904\u7406\u7684\u60c5\u51b5\u4e0b\u7684\u5899\u9762\u56fe\u5143\u662f\u4e00\u4e2a\u4e2a\u72ec\u7acb\u7ed8\u5236\u7684\u6a21\u578b\uff0c\u6240\u4ee5\u6027\u80fd\u4f1a\u6bd4\u8f83\u5dee\uff0c\u800c\u5f53\u4e00\u6279\u56fe\u5143\u805a\u5408\u6210\u4e00\u4e2a\u5927\u6a21\u578b\u8fdb\u884c\u4e00\u6b21\u6027\u7684\u7ed8\u5236\u65f6\uff0c\u5219\u4f1a\u6781\u5927\u63d0\u9ad8 WebGL \u5237\u65b0\u6027\u80fd\uff0c\u8fd9\u5c31\u662f\u6279\u91cf\u6240\u4ee5\u8981\u505a\u7684\u4e8b\u60c5\uff0c\u5177\u4f53\u53ef\u4ee5\u53c2\u8003 <strong>HT<\/strong>\u00a0\u7684 <strong><a href=\"https:\/\/hightopo.com\/guide\/guide\/core\/batch\/ht-batch-guide.html\" target=\"_blank\">\u6279\u91cf\u624b\u518c<\/a><\/strong>\u3002<\/p>\n<p>\u8be5\u7cfb\u7edf 2d \u9762\u677f\u90e8\u5206\u5219\u4e5f\u662f\u901a\u8fc7 <strong>HT<\/strong>\u00a0\u7684<strong>\u77e2\u91cf<\/strong>\u8fdb\u884c\u7ed8\u5236\uff0c\u9762\u677f\u90e8\u5206\u4e3b\u8981\u5305\u62ec\u5f53\u524d\u6316\u673a\u7684\u4f5c\u4e1a\u60c5\u51b5\uff0c\u5de5\u4f5c\u65f6\u95f4\uff0c\u4fdd\u4fee\u4fe1\u606f\uff0c\u6545\u969c\u4fe1\u606f\u7b49\uff0c\u901a\u8fc7\u4e8c\u7ef4\u7684\u65b9\u5f0f\u5c55\u793a\u8fd9\u4e9b\u6570\u636e\u4fe1\u606f\uff0c\u9762\u677f\u622a\u56fe\uff1a<\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u9762\u677f.jpg\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1090\" alt=\"\u9762\u677f\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u9762\u677f.jpg\" width=\"836\" height=\"509\/\" \/><\/a><\/p>\n<p><span style=\"font-size: 18pt;\"><strong>\u673a\u68b0\u8fd0\u52a8\u4ee3\u7801\u5206\u6790<\/strong><\/span><\/p>\n<p>\u8be5\u7cfb\u7edf\u4e2d\u6316\u673a\u7684\u52a8\u4f5c\u662f\u5341\u5206\u7684\u91cd\u8981\u548c\u5173\u952e\u7684\uff0c\u5927\u5c0f\u81c2\u8fd0\u52a8\u65f6\u6db2\u538b\u6760\u8be5\u5982\u4f55\u8fd0\u52a8\uff0c\u6316\u6597\u8fd0\u52a8\u65f6\u6db2\u538b\u6746\uff0c\u65cb\u8f6c\u70b9\u96f6\u4ef6\uff0c\u4ee5\u53ca\u8fde\u63a5\u5230\u6316\u6597\u4e0a\u7684\u96f6\u90e8\u4ef6\u5982\u4f55\u8054\u52a8\u8d77\u6765\u662f\u5173\u952e\u70b9\uff0c\u673a\u68b0\u52a8\u753b\u4e2d\u7528\u5230\u5927\u90e8\u5206\u6570\u5b66\u77e5\u8bc6\u8fdb\u884c\u70b9\u9762\u4f4d\u7f6e\u7684\u8ba1\u7b97\uff0c\u4ee5\u4e0b\u662f\u51e0\u4e2a\u5173\u952e\u7684\u6570\u5b66\u77e5\u8bc6\u70b9\u4f5c\u4e3a\u57fa\u7840\uff1a<\/p>\n<p>\u5728\u6570\u5b66\u4e2d\uff0c<strong>\u5411\u91cf<\/strong>\uff08\u4e5f\u79f0\u4e3a\u51e0\u4f55\u5411\u91cf\u3001\u77e2\u91cf\uff09\uff0c\u6307\u5177\u6709\u5927\u5c0f\u548c\u65b9\u5411\u7684\u91cf\u3002\u5b83\u53ef\u4ee5\u5f62\u8c61\u5316\u5730\u8868\u793a\u4e3a\u5e26\u7bad\u5934\u7684\u7ebf\u6bb5\u3002\u7cfb\u7edf\u4e2d\u4f1a\u901a\u8fc7\u5411\u91cf\u7684\u53c9\u4e58\u7b97\u51fa\u4e0e\u67d0\u4e2a\u9762\u5782\u76f4\u7684\u5411\u91cf\u5373\u6cd5\u5411\u91cf\uff0c\u5728\u8ba1\u7b97\u6316\u6597\u65cb\u8f6c\u65f6\u9700\u8981\u8ba1\u7b97\u51fa\u4e0e\u6316\u6597\u9762\u5782\u76f4\u7684\u6cd5\u5411\u91cf\u6765\u8fdb\u884c\u70b9\u7684\u8ba1\u7b97\uff0cHT \u4e2d\u5c01\u88c5\u4e86 <strong>ht.Math<\/strong>\u00a0\u7684\u6570\u5b66\u51fd\u6570\uff0c\u91cc\u9762\u7684 <strong>ht.Math.Vector2<\/strong>\u00a0\u6307\u7684\u5373\u4e3a\u4e8c\u7ef4\u5411\u91cf\uff0c<strong>ht.Math.Vector3<\/strong>\u00a0\u5219\u4e3a\u4e09\u7ef4\u7684\u5411\u91cf\uff0c\u53ef\u4ee5\u4f20\u5165\u4e09\u4e2a\u6570\u503c\u8fdb\u884c\u521d\u59cb\u5316\u5411\u91cf\uff0c\u5411\u91cf\u7684\u539f\u578b\u4e2d\u6709 <strong>cross<\/strong>\u00a0\u65b9\u6cd5\u7528\u6765\u8ba1\u7b97\u4e24\u4e2a\u5411\u91cf\u7684\u6cd5\u5411\u91cf\uff0c\u4f8b\u5982\u4ee5\u4e0b\u4f2a\u4ee3\u7801\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\">1<\/span> <span style=\"color: #0000ff;\">var<\/span> Vector3 =<span style=\"color: #000000;\"> ht.Math.Vector3;\r\n<\/span><span style=\"color: #008080;\">2<\/span> <span style=\"color: #0000ff;\">var<\/span> a = <span style=\"color: #0000ff;\">new<\/span> Vector3([10, 10, 0<span style=\"color: #000000;\">]);\r\n<\/span><span style=\"color: #008080;\">3<\/span> <span style=\"color: #0000ff;\">var<\/span> b = <span style=\"color: #0000ff;\">new<\/span> Vector3([10, 0, 0<span style=\"color: #000000;\">]);\r\n<\/span><span style=\"color: #008080;\">4<\/span> <span style=\"color: #0000ff;\">var<\/span> ab = a.clone().cross(b);<\/pre>\n<\/div>\n<p>\u4ee5\u4e0a\u4ee3\u7801\u4e2d ab \u5373\u4e3a\u8ba1\u7b97\u6cd5\u5411\u91cf\uff0ca.clone \u662f\u4e3a\u4e86\u907f\u514d cross \u8fd0\u7b97\u4f1a\u4fee\u6539\u539f\u672c\u7684 a \u5185\u5bb9\uff0c\u6240\u4ee5\u514b\u9686\u51fa\u4e00\u4e2a\u65b0\u7684\u5411\u91cf\u8fdb\u884c\u53c9\u4e58\uff0c\u4ee5\u4e0b\u4e3a\u793a\u610f\u56fe\uff1a<\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/1.png\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1091\" alt=\"1\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/1.png\" width=\"535\" height=\"480\" \/><\/a><\/p>\n<p><span style=\"font-size: 14pt;\"><strong>\u6316\u6597\u673a\u68b0\u8fd0\u52a8\u5206\u6790<\/strong><\/span><\/p>\n<p>\u5728\u8fdb\u884c\u6316\u6597\u90e8\u5206\u7684\u673a\u68b0\u4ee3\u7801\u65f6\u4f1a\u5c06\u6316\u6597\u7684\u4f4d\u7f6e\u4ee5\u53ca\u6316\u6597\u6240\u6709\u8fde\u63a5\u70b9\u7684\u8bbe\u5907\u8f6c\u5316\u4e3a\u76f8\u5bf9\u4e8e\u67d0\u4e2a\u8282\u70b9\u7684\u76f8\u5bf9\u4f4d\u7f6e\uff0c\u4f8b\u5982\u8282\u70b9 A \u5728\u4e16\u754c\u4e2d\u7684\u5750\u6807\u4e3a [100, 100, 100]\uff0c\u4e16\u754c\u4e2d\u8fd8\u6709\u4e00\u4e2a\u8282\u70b9 B\uff0c\u800c\u4e14\u8282\u70b9 B \u7684\u5750\u6807\u4e3a [10, 10, 10] \u5219\u8282\u70b9 A \u76f8\u5bf9\u4e8e\u8282\u70b9 B \u7684\u76f8\u5bf9\u4f4d\u7f6e\u5373\u4e3a [90, 90, 90]\uff0c\u56e0\u4e3a\u5728\u8ba1\u7b97\u6316\u6597\u7684\u4f4d\u7f6e\u65f6\uff0c\u6316\u673a\u53ef\u80fd\u6b64\u65f6\u5df2\u7ecf\u8fd0\u52a8\u5230\u67d0\u4e00\u70b9\u6216\u8005\u65cb\u8f6c\u5230\u67d0\u4e00\u4e2a\u8f74\uff0c\u6240\u4ee5\u6b64\u65f6\u4e0d\u80fd\u4f7f\u7528\u76f8\u5bf9\u4e16\u754c\u7684\u5750\u6807\uff0c\u9700\u8981\u4f7f\u7528\u76f8\u5bf9\u6316\u673a\u673a\u8eab\u7684\u76f8\u5bf9\u5750\u6807\u6765\u8fdb\u884c\u8ba1\u7b97\uff0c\u4ee3\u7801\u4e2d\u63d0\u4f9b\u4e86 <strong>toLocalPostion(node, worldPosition)<\/strong>\u00a0\u7528\u6765\u5c06\u4e16\u754c\u7684\u5750\u6807 worldPosition \u8f6c\u5316\u4e3a\u76f8\u5bf9 node \u7684\u76f8\u5bf9\u5750\u6807\uff0c\u4ee5\u4e0b\u4e3a\u4ee3\u7801\u5b9e\u73b0\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\">1<\/span> <span style=\"color: #0000ff;\">var<\/span> Matrix4 =<span style=\"color: #000000;\"> ht.Math.Matrix4,\r\n<\/span><span style=\"color: #008080;\">2<\/span> Vector3 =<span style=\"color: #000000;\"> ht.Math.Vector3;\r\n<\/span><span style=\"color: #008080;\">3<\/span> <span style=\"color: #0000ff;\">var<\/span> mat = <span style=\"color: #0000ff;\">new<\/span> Matrix4().fromArray(<span style=\"color: #0000ff;\">this<\/span><span style=\"color: #000000;\">.getNodeMat(g3d, node)),\r\n<\/span><span style=\"color: #008080;\">4<\/span> matInverse = <span style=\"color: #0000ff;\">new<\/span><span style=\"color: #000000;\"> Matrix4().getInverse(mat),\r\n<\/span><span style=\"color: #008080;\">5<\/span> position = <span style=\"color: #0000ff;\">new<\/span><span style=\"color: #000000;\"> Vector3(worldPosition).applyMatrix4(matInverse);\r\n<\/span><span style=\"color: #008080;\">6<\/span> <span style=\"color: #0000ff;\">return<\/span> position.toArray();<\/pre>\n<\/div>\n<p>\u8be5\u51fd\u6570\u7684\u8fd4\u56de\u503c\u5373\u4e3a\u76f8\u5bf9\u5750\u6807\uff0c\u6316\u673a\u4e2d\u9700\u8981\u8f6c\u5316\u7684\u5750\u6807\u4e3a\u8fde\u63a5\u7740\u6316\u6597\u4ee5\u53ca\u5c0f\u81c2\u7684\u4e24\u4e2a\u96f6\u90e8\u4ef6\uff0c\u7cfb\u7edf\u4e2d\u7528 <strong>armHinge<\/strong>\u00a0\u4ee5\u53ca <strong>bucketHinge<\/strong>\u00a0\u6765\u5206\u522b\u8868\u793a\u5c0f\u81c2\u67a2\u7ebd\u4ee5\u53ca\u6316\u6597\u67a2\u7ebd\u8fd9\u4e24\u4e2a\u96f6\u90e8\u4ef6\uff0c\u53ef\u4ee5\u4ece\u4fa7\u9762\u6765\u770b\u6316\u6597\u7684\u52a8\u4f5c\uff0c\u4ece\u4e0b\u56fe\u53ef\u4ee5\u770b\u51fa\uff0c\u5173\u952e\u70b9\u662f\u7b97\u51fa\u4ea4\u70b9 P \u7684\u5750\u6807\uff0c\u4ea4\u70b9 P \u7684\u5750\u6807\u5219\u662f\u4ee5 armHinge \u4e0e bucketHinge\u4f4d\u7f6e\u4e3a\u5706\u5fc3\uff0carmHinge \u4e0e bucketHinge \u7684\u957f\u5ea6\u4e3a\u534a\u5f84\u7684\u4e24\u4e2a\u5706\u7684\u4ea4\u70b9\uff0c\u800c\u4e14\u8fd9\u4e24\u4e2a\u5706\u7684\u5706\u5fc3\u5728\u6316\u6597\u65cb\u8f6c\u7684\u8fc7\u7a0b\u4e2d\u662f\u4e0d\u65ad\u53d8\u5316\u7684\uff0c\u6240\u4ee5\u9700\u8981\u901a\u8fc7\u6570\u5b66\u8ba1\u7b97\u4e0d\u65ad\u7b97\u51fa\u4ea4\u70b9\u7684\u4f4d\u7f6e\uff0c\u4ee5\u4e0b\u4e3a\u793a\u610f\u56fe\uff1a<\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/1557044989241.jpg\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1092\" alt=\"1557044989241\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/1557044989241.jpg\" width=\"1426\" height=\"606\" \/><\/a><\/p>\n<p>\u901a\u8fc7\u4e0a\u56fe\u53ef\u4ee5\u77e5\u9053\u4ea4\u70b9\u7684\u4f4d\u7f6e\u6709\u4e24\u4e2a p1 \u4ee5\u53ca p2\uff0c\u7a0b\u5e8f\u4e2d\u901a\u8fc7\u8ba1\u7b97\u5706\u5fc3 1 \u4e0e\u5706\u5fc3 2 \u6784\u6210\u7684\u5411\u91cf c2ToC1\uff0c\u4ee5\u4e0b\u4e3a\u4f2a\u4ee3\u7801\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\">1<\/span> <span style=\"color: #0000ff;\">var<\/span> Vector2 =<span style=\"color: #000000;\"> ht.Math.Vector2;\r\n<\/span><span style=\"color: #008080;\">2<\/span> <span style=\"color: #0000ff;\">var<\/span> c2ToC1 = <span style=\"color: #0000ff;\">new<\/span> Vector2({ x: c1.x, y: c1.y }).sub(<span style=\"color: #0000ff;\">new<\/span> Vector2({ x: c2.x, y: c2.y }));<\/pre>\n<\/div>\n<p>c1 \u548c c2 \u4e3a armHinge \u4ee5\u53ca bucketHinge \u7684\u5706\u5fc3\u5750\u6807\uff0c\u63a5\u4e0b\u6765\u662f\u8ba1\u7b97\u5706\u5fc3 2 \u4e0e\u70b9 p1 \u4ee5\u53ca p2 \u6784\u6210\u7684\u5411\u91cf c2ToP1 \u4ee5\u53ca c2ToP2\uff0c\u4ee5\u4e0b\u4e3a\u4f2a\u4ee3\u7801\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\">1<\/span> <span style=\"color: #0000ff;\">var<\/span> Vector2 =<span style=\"color: #000000;\"> ht.Math.Vector2;\r\n<\/span><span style=\"color: #008080;\">2<\/span> <span style=\"color: #0000ff;\">var<\/span> c2ToP1 = <span style=\"color: #0000ff;\">new<\/span> Vector2({ x: p1.x, y: p1.y }).sub(<span style=\"color: #0000ff;\">new<\/span><span style=\"color: #000000;\"> Vector2({ x: c2.x, y: c2.y }));\r\n<\/span><span style=\"color: #008080;\">3<\/span> <span style=\"color: #0000ff;\">var<\/span> c2ToP2 = <span style=\"color: #0000ff;\">new<\/span> Vector2({ x: p2.x, y: p2.y }).sub(<span style=\"color: #0000ff;\">new<\/span> Vector2({ x: c2.x, y: c2.y }));<\/pre>\n<\/div>\n<p>\u901a\u8fc7\u4e0a\u8ff0\u64cd\u4f5c\u6211\u4eec\u53ef\u4ee5\u83b7\u5f97\u4e09\u4e2a\u5411\u91cf <strong>c2ToC1<\/strong>\uff0c<strong>c2ToP1<\/strong>\uff0c<strong>c2ToP2<\/strong>\u00a0\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u7528\u5230\u6211\u4e0a\u8ff0\u8bb2\u7684\u5411\u91cf\u53c9\u4e58\u7684\u6982\u5ff5\u8fdb\u884c p1 \u4e0e p2 \u70b9\u7684\u9009\u53d6\uff0c\u901a\u8fc7\u5411\u91cf c2ToC1 \u4e0e c2ToP1\uff0c\u4ee5\u53ca\u5411\u91cf c2ToC1 \u4e0e c2ToP2 \u5206\u522b\u8fdb\u884c\u53c9\u4e58\u5f97\u5230\u7684\u7ed3\u679c\u80af\u5b9a\u4e00\u4e2a\u662f\u5927\u4e8e 0 \u4e00\u4e2a\u5c0f\u4e8e 0\uff0c\u4e8c\u7ef4\u5411\u91cf\u7684\u53c9\u4e58\u53ef\u4ee5\u76f4\u63a5\u628a\u5b83\u4eec\u89c6\u4e3a 3d \u5411\u91cf\uff0cz\u8f74\u8865 0 \u7684\u4e09\u7ef4\u5411\u91cf\uff0c\u4e0d\u8fc7\u4e8c\u7ef4\u5411\u91cf\u53c9\u4e58\u7684\u7ed3\u679c <strong>result<\/strong>\u00a0\u4e0d\u662f\u5411\u91cf\u800c\u662f\u6570\u503c\uff0c\u5982\u679c result &gt; 0 \u65f6\uff0c\u90a3\u4e48 a \u6b63\u65cb\u8f6c\u5230 b \u7684\u89d2\u5ea6\u4e3a &lt;180\u00b0\uff0c\u5982\u679c k &lt; 0\uff0c\u90a3\u4e48 a \u6b63\u65cb\u8f6c\u5230 b \u7684\u89d2\u5ea6\u4e3a &gt;180\u00b0,\u5982\u679c k = 0 \u90a3\u4e48a\uff0cb\u5411\u91cf\u5e73\u884c\uff0c\u6240\u4ee5\u901a\u8fc7\u4e0a\u9762\u7684\u7406\u8bba\u77e5\u8bc6\u6211\u4eec\u53ef\u4ee5\u77e5\u9053\u7ed3\u679c\u80af\u5b9a\u662f\u4e00\u4e2a\u5927\u4e8e 0 \u4e00\u4e2a\u5c0f\u4e8e 0\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u7a0b\u5e8f\u4e2d\u6d4b\u4e0b\u53ef\u4ee5\u77e5\u9053\u6211\u4eec\u9700\u8981\u83b7\u53d6\u7684\u662f\u5927\u4e8e 0 \u7684\u90a3\u4e2a\u70b9 P1\uff0c\u6240\u4ee5\u6bcf\u6b21\u53ef\u4ee5\u901a\u8fc7\u4e0a\u8ff0\u7684\u65b9\u6cd5\u8fdb\u884c\u4e24\u4e2a\u4ea4\u70b9\u7684\u9009\u62e9\u3002<\/p>\n<p>\u4ee5\u4e0b\u4e3a\u6316\u6597\u90e8\u5206\u52a8\u753b\u7684\u6267\u884c\u6d41\u7a0b\u56fe\uff1a<\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u4ea4\u70b9\u6d41\u7a0b\u56fe.png\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1093\" alt=\"\u4ea4\u70b9\u6d41\u7a0b\u56fe\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u4ea4\u70b9\u6d41\u7a0b\u56fe.png\" width=\"1177\" height=\"268\" \/><\/a><\/p>\n<p>\u901a\u8fc7\u4e0a\u8ff0\u8fd0\u7b97\u4e4b\u540e\u6211\u4eec\u53ef\u4ee5\u83b7\u53d6\u5230\u6700\u7ec8\u9700\u8981\u7684\u70b9 P \u5750\u6807\uff0c\u70b9 P \u5750\u6807\u5373\u4e3a\u6316\u6597\u4e0e\u5c0f\u81c2\u8fde\u63a5\u90e8\u5206\u7684\u4e00\u4e2a\u91cd\u8981\u70b9\uff0c\u83b7\u53d6\u8be5\u70b9\u4e4b\u540e\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7 HT \u4e2d\u63d0\u4f9b\u7684 <strong>lookAtX<\/strong>\u00a0\u51fd\u6570\u6765\u5b9e\u73b0\u63a5\u4e0b\u6765\u7684\u64cd\u4f5c\uff0clookAtX \u51fd\u6570\u7684\u4f5c\u7528\u4e3a\u8ba9\u67d0\u4e2a\u7269\u4f53\u770b\u5411\u67d0\u4e00\u70b9\uff0c\u4f7f\u7528\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\">1<\/span> node.lookAtX(position, 'bottom');<\/pre>\n<\/div>\n<p>node \u5373\u4e3a\u9700\u8981\u770b\u5411\u67d0\u4e00\u4e2a\u70b9\u7684\u8282\u70b9\uff0cposition \u4e3a\u770b\u5411\u7684\u70b9\u7684\u5750\u6807\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u6709\u516d\u4e2a\u679a\u4e3e\u503c\u53ef\u4ee5\u9009\u62e9\uff0c\u5206\u522b\u4e3a &#8216;bottom&#8217;\uff0c&#8217;back&#8217;\uff0c&#8217;front&#8217;\uff0c&#8217;top&#8217;\uff0c&#8217;right&#8217;\uff0c&#8217;left&#8217;\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u7684\u4f5c\u7528\u662f\u5f53\u6211\u4eec\u9700\u8981\u628a\u67d0\u4e2a\u7269\u4f53\u770b\u5411\u67d0\u4e00\u4e2a\u70b9\u7684\u65f6\u5019\u6211\u4eec\u4e5f\u8981\u6307\u5b9a\u8be5\u7269\u4f53\u7684\u54ea\u4e00\u4e2a\u9762\u770b\u5411\u8be5\u70b9\uff0c\u6240\u4ee5\u9700\u8981\u63d0\u4f9b\u7b2c\u4e8c\u4e2a\u53c2\u6570\u6765\u660e\u786e\uff0c\u83b7\u53d6\u5230\u8be5\u51fd\u6570\u4e4b\u540e\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5c06 bucketHinge \u770b\u5411\u70b9 P\uff0carmHinge \u770b\u5411\u70b9 P\uff0c\u5c31\u53ef\u4ee5\u4fdd\u6301\u8fd9\u4e24\u4e2a\u8fde\u63a5\u7684\u8bbe\u5907\u6c38\u8fdc\u671d\u5411\u8be5\u70b9\uff0c\u4ee5\u4e0b\u4e3a\u90e8\u5206\u4f2a\u4ee3\u7801\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\">1<\/span> bucketHinge.lookAtX(P, 'front'<span style=\"color: #000000;\">);\r\n<\/span><span style=\"color: #008080;\">2<\/span> armHinge.lookAtX(P, 'bottom');<\/pre>\n<\/div>\n<p>\u6240\u4ee5\u901a\u8fc7\u4e0a\u8ff0\u64cd\u4f5c\u4e4b\u540e\u6211\u4eec\u5df2\u7ecf\u628a\u6316\u6597\u90e8\u5206\u7684\u4e24\u4e2a\u5173\u952e\u96f6\u4ef6\u7684\u4f4d\u7f6e\u5df2\u7ecf\u6446\u653e\u6b63\u786e\uff0c\u63a5\u4e0b\u6765\u662f\u8981\u6b63\u786e\u7684\u6446\u653e\u4e0e\u6316\u6597\u8fde\u63a5\u7684\u5c0f\u81c2\u4e0a\u6db2\u538b\u90e8\u5206\u7684\u4f4d\u7f6e\uff0c\u4e0b\u4e00\u90e8\u5206\u4e3a\u4ecb\u7ecd\u8be5\u8282\u70b9\u5982\u4f55\u8fdb\u884c\u6446\u653e\u3002<\/p>\n<p><span style=\"font-size: 14pt;\"><strong>\u6db2\u538b\u8054\u52a8\u5206\u6790<\/strong><\/span><\/p>\n<p>\u5728\u573a\u666f\u4e2d\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u6db2\u538b\u4e3b\u8981\u5206\u4e3a\u4e24\u4e2a\u90e8\u5206\uff0c\u4e00\u90e8\u5206\u4e3a\u767d\u8272\u7684\u8f83\u7ec6\u7684\u6db2\u538b\u6746\uff0c\u4e00\u90e8\u5206\u4e3a\u9ed1\u8272\u7684\u8f83\u539a\u7684\u6db2\u538b\u6746\uff0c\u767d\u8272\u7684\u6db2\u538b\u6746\u63d2\u5728\u9ed1\u8272\u7684\u6db2\u538b\u6746\u4e2d\uff0c\u6240\u4ee5\u5728\u5c0f\u81c2\u6216\u8005\u6316\u6597\u65cb\u8f6c\u7684\u8fc7\u7a0b\u4e2d\u6211\u4eec\u8981\u4fdd\u6301\u4e24\u4e2a\u8282\u70b9\u59cb\u7ec8\u4fdd\u6301\u76f8\u5bf9\u7684\u4f4d\u7f6e\uff0c\u901a\u8fc7\u4e0a\u4e00\u6b65\u9aa4\u4e2d\u6211\u4eec\u53ef\u4ee5\u77e5\u9053 <strong>lookAtX<\/strong>\u00a0\u8fd9\u4e2a\u51fd\u6570\u7684\u4f5c\u7528\uff0c\u6240\u4ee5\u5728\u6db2\u538b\u6746\u90e8\u5206\u6211\u4eec\u4e5f\u662f\u7167\u6837\u7528\u8be5\u51fd\u6570\u6765\u5b9e\u73b0\u3002<\/p>\n<p>\u5728\u4e0a\u4e00\u6b65\u6211\u4eec\u83b7\u53d6\u5230\u4e86\u6316\u6597\u65cb\u8f6c\u8fc7\u7a0b\u4e2d\u7684\u5173\u952e\u70b9 P\uff0c\u6240\u4ee5\u5728\u6316\u6597\u65cb\u8f6c\u7684\u8fc7\u7a0b\u6211\u4eec\u5c0f\u81c2\u4e0a\u7684\u6db2\u538b\u6746\u4e5f\u8981\u76f8\u5e94\u7684\u8fdb\u884c\u53d8\u5316\uff0c\u5177\u4f53\u7684\u64cd\u4f5c\u5c31\u662f\u5c06\u5c0f\u81c2\u7684\u767d\u8272\u6db2\u538b\u6746\u7684\u4f4d\u7f6e\u8bbe\u7f6e\u4e3a\u4e0a\u6b65\u4e2d\u8ba1\u7b97\u51fa\u6765\u7684\u70b9 P \u7684\u4f4d\u7f6e\uff0c\u5f53\u7136\u9700\u8981\u628a\u767d\u8272\u6db2\u538b\u6746\u7684\u951a\u70b9\u8fdb\u884c\u76f8\u5e94\u7684\u8bbe\u7f6e\uff0c\u4e4b\u540e\u8ba9\u767d\u8272\u6db2\u538b\u6746 lookAt \u9ed1\u8272\u6db2\u538b\u6746\uff0c\u540c\u65f6\u8ba9\u9ed1\u8272\u6db2\u538b\u6746 lookAt \u767d\u8272\u6db2\u538b\u6746\uff0c\u8fd9\u6837\u4e0b\u6765\u4e24\u4e2a\u6db2\u538b\u6746\u90fd\u5728\u4e92\u76f8\u770b\u7740\u5bf9\u65b9\uff0c\u6240\u4ee5\u5b83\u4eec\u5448\u73b0\u51fa\u6765\u7684\u6548\u679c\u5c31\u662f\u767d\u8272\u6db2\u538b\u6746\u5728\u9ed1\u8272\u6db2\u538b\u6746\u4e2d\u8fdb\u884c\u4f38\u7f29\uff0c\u4ee5\u4e0b\u4e3a\u4f2a\u4ee3\u7801\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\">1<\/span> <span style=\"color: #000000;\">bucketWhite.p3(P);\r\n<\/span><span style=\"color: #008080;\">2<\/span> bucketWhite.lookAtX(bucketBlack.p3(), 'top'<span style=\"color: #000000;\">);\r\n<\/span><span style=\"color: #008080;\">3<\/span> bucketBlack.lookAtX(P, 'bottom');<\/pre>\n<\/div>\n<p>\u4ee3\u7801\u4e2d <strong>bucketWhite<\/strong>\u00a0\u8282\u70b9\u5373\u4e3a\u5c0f\u81c2\u4e0a\u767d\u8272\u6db2\u538b\u6746\uff0c<strong>bucketBlack<\/strong>\u00a0\u8282\u70b9\u4e3a\u5c0f\u81c2\u4e0a\u9ed1\u8272\u6db2\u538b\u6746\uff0c\u901a\u8fc7\u4ee5\u4e0a\u7684\u8bbe\u7f6e\u5c31\u53ef\u4ee5\u5b9e\u73b0\u4f38\u7f29\u7684\u52a8\u753b\u6548\u679c\uff0c\u4ee5\u4e0b\u4e3a\u6db2\u538b\u7684\u8fd0\u884c\u56fe\uff1a<\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u6db2\u538b.gif\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1094\" alt=\"\u6db2\u538b\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u6db2\u538b.gif\" width=\"640\" height=\"354\" \/><\/a><\/p>\n<p>\u540c\u7406\u6316\u673a\u8eab\u4e0a\u7684\u5927\u81c2\u7684\u6db2\u538b\u52a8\u4f5c\u4ee5\u53ca\u673a\u8eab\u4e0e\u5927\u81c2\u8fde\u63a5\u90e8\u5206\u7684\u6db2\u538b\u52a8\u4f5c\u90fd\u662f\u4f7f\u7528\u4e0a\u9762\u7684\u65b9\u6cd5\u6765\u5b9e\u73b0\uff0c\u4ee5\u4e0b\u4e3a\u8fd9\u4e24\u90e8\u5206\u7684\u4ee3\u7801\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\"> 1<\/span> rotateBoom: (rotateVal) = &gt;<span style=\"color: #000000;\">{\r\n<\/span><span style=\"color: #008080;\"> 2<\/span>     excavatorBoomNode.setRotationX(dr *<span style=\"color: #000000;\"> rotateVal);\r\n<\/span><span style=\"color: #008080;\"> 3<\/span>     let archorVector = [0.5 - 0.5, 0.56 - 0.5, 0.22 - 0.5<span style=\"color: #000000;\">];\r\n<\/span><span style=\"color: #008080;\"> 4<\/span>     let pos =<span style=\"color: #000000;\"> projectUtil.toWorldPosition(g3d, excavatorBoomNode, archorVector);\r\n<\/span><span style=\"color: #008080;\"> 5<\/span>     boomWhite.lookAtX(boomBlack.p3(), 'bottom'<span style=\"color: #000000;\">);\r\n<\/span><span style=\"color: #008080;\"> 6<\/span>     boomBlack.lookAtX(pos, 'top'<span style=\"color: #000000;\">);\r\n<\/span><span style=\"color: #008080;\"> 7<\/span> <span style=\"color: #000000;\">},\r\n<\/span><span style=\"color: #008080;\"> 8<\/span> rotateArm: (rotateVal) = &gt;<span style=\"color: #000000;\">{\r\n<\/span><span style=\"color: #008080;\"> 9<\/span>     projectUtil.applyRelativeRotation(excavatorArmNode, excavatorBoomNode, -<span style=\"color: #000000;\">rotateVal);\r\n<\/span><span style=\"color: #008080;\">10<\/span>     let archorVector = [0.585 - 0.5, 0.985 - 0.5, 0.17 - 0.5<span style=\"color: #000000;\">];\r\n<\/span><span style=\"color: #008080;\">11<\/span>     let pos =<span style=\"color: #000000;\"> projectUtil.toWorldPosition(g3d, excavatorArmNode, archorVector);\r\n<\/span><span style=\"color: #008080;\">12<\/span>     armWhite.lookAtX(armBlack.p3(), 'bottom'<span style=\"color: #000000;\">);\r\n<\/span><span style=\"color: #008080;\">13<\/span>     armBlack.lookAtX(pos, 'top'<span style=\"color: #000000;\">);\r\n<\/span><span style=\"color: #008080;\">14<\/span> }<\/pre>\n<\/div>\n<p>\u6211\u5c06\u4e24\u90e8\u5206\u7684\u8fd0\u52a8\u5c01\u88c5\u4e3a\u4e24\u4e2a\u51fd\u6570 rotateBoom \u4ee5\u53ca rotateArm \u5206\u522b\u662f\u5927\u81c2\u4e0e\u673a\u8eab\u8fde\u63a5\u5904\u7684\u6db2\u538b\u8fd0\u52a8\u4e0e\u5927\u81c2\u4e0a\u7684\u6db2\u538b\u8fd0\u52a8\uff0c\u5728\u8be5\u90e8\u5206\u4e2d\u4e3a\u4e86\u7cbe\u786e\u7684\u83b7\u53d6\u770b\u5411\u7684\u70b9\uff0c\u6211\u901a\u8fc7 toWorldPosition \u65b9\u6cd5\u5c06\u76f8\u5bf9\u5750\u6807\u8f6c\u5316\u4e3a\u4e16\u754c\u5750\u6807\uff0c\u76f8\u5bf9\u5750\u6807\u4e3a\u9ed1\u767d\u6db2\u538b\u6746\u7684\u951a\u70b9\u5750\u6807\uff0c\u8f6c\u5316\u4e3a\u76f8\u5bf9\u5927\u81c2\u6216\u8005\u673a\u8eab\u7684\u4e16\u754c\u5750\u6807\u3002<\/p>\n<p><span style=\"font-size: 14pt;\"><strong>\u57fa\u672c\u8fd0\u52a8\u5206\u6790<\/strong><\/span><\/p>\n<p>\u6316\u673a\u7684\u57fa\u672c\u8fd0\u52a8\u5305\u62ec\u524d\u8fdb\u540e\u9000\uff0c\u673a\u8eab\u65cb\u8f6c\uff0c\u8fd9\u4e00\u90e8\u5206\u4f1a\u76f8\u5bf9\u4e0a\u9762\u7684\u8fd0\u52a8\u7b80\u5355\u8bb8\u591a\uff0c\u5728 HT \u7684\u4e09\u7ef4\u5750\u6807\u7cfb\u4e2d\uff0c\u4e0d\u65ad\u4fee\u6539\u6316\u673a\u673a\u8eab\u7684 x\uff0cy\uff0cz \u7684\u5750\u6807\u503c\u5c31\u53ef\u4ee5\u5b9e\u73b0\u6316\u673a\u7684\u524d\u8fdb\u540e\u9000\uff0c\u901a\u8fc7\u4fee\u6539\u673a\u8eab\u7684 y \u8f74\u65cb\u8f6c\u89d2\u5ea6\u5219\u53ef\u4ee5\u63a7\u5236\u673a\u8eab\u7684\u65cb\u8f6c\uff0c\u5f53\u7136\u6316\u673a\u8eab\u4f53\u4e0a\u7684\u6240\u6709\u5176\u5b83\u96f6\u90e8\u4ef6\u9700\u8981\u5438\u9644\u5728\u673a\u8eab\u8eab\u4e0a\uff0c\u5f53\u673a\u8eab\u8fdb\u884c\u65cb\u8f6c\u65f6\u5176\u5b83\u96f6\u90e8\u4ef6\u5219\u4f1a\u8fdb\u884c\u76f8\u5e94\u7684\u65cb\u8f6c\uff0c\u5728\u8fdb\u884c\u524d\u8fdb\u7684\u65f6\u5019\u6316\u673a\u5e95\u90e8\u7684\u5c65\u5e26\u4f1a\u8fdb\u884c\u5bf9\u5e94\u7684\u6eda\u52a8\uff0c\u5f53\u7136\u5c65\u5e26\u6211\u4eec\u8fd9\u8fb9\u662f\u7528\u4e86\u4e00\u4e2a\u5c65\u5e26\u7684\u8d34\u56fe\u8d34\u5728\u4e0a\u9762\uff0c\u5f53\u6316\u673a\u524d\u8fdb\u7684\u65f6\u5019\u4fee\u6539\u8d34\u56fe\u7684\u504f\u79fb\u503c\u5c31\u53ef\u4ee5\u5b9e\u73b0\u5c65\u5e26\u7684\u6eda\u52a8\uff0c\u4fee\u6539\u504f\u79fb\u503c\u7684\u4f2a\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\">1<\/span> node.s('shape3d.uv.offset', [x, y]);<\/pre>\n<\/div>\n<p>\u4e0a\u9762\u7684 x\uff0cy \u5206\u522b\u4e3a x \u8f74\u4e0e y \u8f74\u65b9\u5411\u7684\u504f\u79fb\u503c\uff0c\u5728\u6316\u673a\u524d\u8fdb\u540e\u9000\u7684\u8fc7\u7a0b\u4e2d\u4e0d\u65ad\u4fee\u6539 y \u7684\u503c\u53ef\u4ee5\u5b9e\u73b0\u5c65\u5e26\u7684\u6eda\u52a8\u6548\u679c\uff0c\u5177\u4f53\u7684\u6587\u6863\u8bf4\u660e\u53ef\u4ee5\u67e5\u770b<strong> <a href=\"https:\/\/hightopo.com\/guide\/guide\/core\/3d\/ht-3d-guide.html\" target=\"_blank\">3D\u624b\u518c<\/a><\/strong><\/p>\n<p>\u5728\u6316\u673a\u524d\u8fdb\u540e\u9000\u7684\u8fc7\u7a0b\u4e2d\u6211\u4eec\u53ef\u4ee5 wasd \u56db\u4e2a\u952e\u540c\u65f6\u6309\u4e0b\uff0c\u5e76\u4e14\u53ef\u4ee5\u5bf9\u6309\u952e\u8fdb\u884c\u4e00\u76f4\u7684\u54cd\u5e94\uff0c\u5728 js \u4e2d\u53ef\u4ee5\u901a\u8fc7 document.addEventListener(&#8216;keydown&#8217;, (e) =&gt; {}) \u4ee5\u53ca document.addEventListener(&#8216;keyup&#8217;, (e) =&gt; {}) \u8fdb\u884c\u76d1\u542c\uff0c\u4f46\u662f\u8fd9\u53ea\u80fd\u6bcf\u6b21\u6267\u884c\u4e00\u6b21\u9700\u8981\u6267\u884c\u7684\u52a8\u4f5c\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u5728\u5916\u90e8\u8d77\u4e00\u4e2a\u5b9a\u65f6\u5668\uff0c\u6765\u6267\u884c keydown \u65f6\u5019\u9700\u8981\u4e0d\u65ad\u6267\u884c\u7684\u52a8\u4f5c\uff0c\u53ef\u4ee5\u7528\u4e00\u4e2a keyMap \u6765\u8bb0\u5f55\u5f53\u524d\u5df2\u7ecf\u70b9\u51fb\u7684\u6309\u952e\uff0c\u5728 keydown \u7684\u65f6\u5019\u7eaa\u5f55\u4e3a true \u5728 keyup \u7684\u65f6\u5019\u8bb0\u5f55\u4e3a false\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u5728\u5b9a\u65f6\u5668\u4e2d\u5224\u65ad\u8fd9\u4e2a bool \u503c\uff0c\u5f53\u4e3a true \u7684\u65f6\u5019\u5219\u6267\u884c\u76f8\u5e94\u7684\u52a8\u4f5c\uff0c\u5426\u5219\u4e0d\u6267\u884c\uff0c\u4ee5\u4e0b\u4e3a\u5bf9\u5e94\u7684\u90e8\u5206\u5173\u952e\u4ee3\u7801\uff1a<\/p>\n<div class=\"cnblogs_code\">\n<pre><span style=\"color: #008080;\"> 1<\/span> let key_pressed =<span style=\"color: #000000;\"> {\r\n<\/span><span style=\"color: #008080;\"> 2<\/span>     65<span style=\"color: #000000;\"> : {\r\n<\/span><span style=\"color: #008080;\"> 3<\/span>         status: <span style=\"color: #0000ff;\">false<\/span><span style=\"color: #000000;\">,\r\n<\/span><span style=\"color: #008080;\"> 4<\/span> <span style=\"color: #000000;\">        action: turnLeft\r\n<\/span><span style=\"color: #008080;\"> 5<\/span> <span style=\"color: #000000;\">    },\r\n<\/span><span style=\"color: #008080;\"> 6<\/span>     87<span style=\"color: #000000;\"> : {\r\n<\/span><span style=\"color: #008080;\"> 7<\/span>         status: <span style=\"color: #0000ff;\">false<\/span><span style=\"color: #000000;\">,\r\n<\/span><span style=\"color: #008080;\"> 8<\/span> <span style=\"color: #000000;\">        action: goAhead\r\n<\/span><span style=\"color: #008080;\"> 9<\/span> <span style=\"color: #000000;\">    },\r\n<\/span><span style=\"color: #008080;\">10<\/span>     68<span style=\"color: #000000;\"> : {\r\n<\/span><span style=\"color: #008080;\">11<\/span>         status: <span style=\"color: #0000ff;\">false<\/span><span style=\"color: #000000;\">,\r\n<\/span><span style=\"color: #008080;\">12<\/span> <span style=\"color: #000000;\">        action: turnRight\r\n<\/span><span style=\"color: #008080;\">13<\/span> <span style=\"color: #000000;\">    },\r\n<\/span><span style=\"color: #008080;\">14<\/span>     83<span style=\"color: #000000;\"> : {\r\n<\/span><span style=\"color: #008080;\">15<\/span>         status: <span style=\"color: #0000ff;\">false<\/span><span style=\"color: #000000;\">,\r\n<\/span><span style=\"color: #008080;\">16<\/span> <span style=\"color: #000000;\">        action: back\r\n<\/span><span style=\"color: #008080;\">17<\/span> <span style=\"color: #000000;\">    },\r\n<\/span><span style=\"color: #008080;\">18<\/span>     37<span style=\"color: #000000;\"> : {\r\n<\/span><span style=\"color: #008080;\">19<\/span>         status: <span style=\"color: #0000ff;\">false<\/span><span style=\"color: #000000;\">,\r\n<\/span><span style=\"color: #008080;\">20<\/span> <span style=\"color: #000000;\">        action: bodyTurnLeft\r\n<\/span><span style=\"color: #008080;\">21<\/span> <span style=\"color: #000000;\">    },\r\n<\/span><span style=\"color: #008080;\">22<\/span>     39<span style=\"color: #000000;\"> : {\r\n<\/span><span style=\"color: #008080;\">23<\/span>         status: <span style=\"color: #0000ff;\">false<\/span><span style=\"color: #000000;\">,\r\n<\/span><span style=\"color: #008080;\">24<\/span> <span style=\"color: #000000;\">        action: bodyTurnRight\r\n<\/span><span style=\"color: #008080;\">25<\/span> <span style=\"color: #000000;\">    }\r\n<\/span><span style=\"color: #008080;\">26<\/span> <span style=\"color: #000000;\">};\r\n<\/span><span style=\"color: #008080;\">27<\/span> setInterval(() = &gt;<span style=\"color: #000000;\">{\r\n<\/span><span style=\"color: #008080;\">28<\/span>     <span style=\"color: #0000ff;\">for<\/span> (let key <span style=\"color: #0000ff;\">in<\/span><span style=\"color: #000000;\"> key_pressed) {\r\n<\/span><span style=\"color: #008080;\">29<\/span> <span style=\"color: #000000;\">        let {\r\n<\/span><span style=\"color: #008080;\">30<\/span> <span style=\"color: #000000;\">            status,\r\n<\/span><span style=\"color: #008080;\">31<\/span> <span style=\"color: #000000;\">            action\r\n<\/span><span style=\"color: #008080;\">32<\/span>         } =<span style=\"color: #000000;\"> key_pressed[key];\r\n<\/span><span style=\"color: #008080;\">33<\/span>         <span style=\"color: #0000ff;\">if<\/span><span style=\"color: #000000;\"> (status) {\r\n<\/span><span style=\"color: #008080;\">34<\/span> <span style=\"color: #000000;\">            action();\r\n<\/span><span style=\"color: #008080;\">35<\/span> <span style=\"color: #000000;\">        }\r\n<\/span><span style=\"color: #008080;\">36<\/span> <span style=\"color: #000000;\">    }\r\n<\/span><span style=\"color: #008080;\">37<\/span> <span style=\"color: #000000;\">},\r\n<\/span><span style=\"color: #008080;\">38<\/span> 50<span style=\"color: #000000;\">);\r\n<\/span><span style=\"color: #008080;\">39<\/span> document.addEventListener('keydown', (event) = &gt;<span style=\"color: #000000;\">{\r\n<\/span><span style=\"color: #008080;\">40<\/span>     let keyCode =<span style=\"color: #000000;\"> event.keyCode;\r\n<\/span><span style=\"color: #008080;\">41<\/span>     key_pressed[keyCode] &amp;&amp; (key_pressed[keyCode].status = <span style=\"color: #0000ff;\">true<\/span><span style=\"color: #000000;\">);\r\n<\/span><span style=\"color: #008080;\">42<\/span> <span style=\"color: #000000;\">    event.stopPropagation();\r\n<\/span><span style=\"color: #008080;\">43<\/span> <span style=\"color: #000000;\">},\r\n<\/span><span style=\"color: #008080;\">44<\/span> <span style=\"color: #0000ff;\">true<\/span><span style=\"color: #000000;\">);\r\n<\/span><span style=\"color: #008080;\">45<\/span> document.addEventListener('keyup', (event) = &gt;<span style=\"color: #000000;\">{\r\n<\/span><span style=\"color: #008080;\">46<\/span>     let keyCode =<span style=\"color: #000000;\"> event.keyCode;\r\n<\/span><span style=\"color: #008080;\">47<\/span>     key_pressed[keyCode] &amp;&amp; (key_pressed[keyCode].status = <span style=\"color: #0000ff;\">false<\/span><span style=\"color: #000000;\">);\r\n<\/span><span style=\"color: #008080;\">48<\/span> <span style=\"color: #000000;\">    event.stopPropagation();\r\n<\/span><span style=\"color: #008080;\">49<\/span> <span style=\"color: #000000;\">},\r\n<\/span><span style=\"color: #008080;\">50<\/span> <span style=\"color: #0000ff;\">true<\/span>);<\/pre>\n<\/div>\n<p>\u4ece\u4e0a\u9762\u4ee3\u7801\u53ef\u4ee5\u770b\u51fa\u6211\u5728 key_pressed \u53d8\u91cf\u4e2d\u8bb0\u5f55\u5bf9\u5e94\u6309\u952e\u4ee5\u53ca\u6309\u952e\u5bf9\u5e94\u7684 action \u52a8\u4f5c\uff0c\u5728 keydown \u4e0e keyup \u7684\u65f6\u5019\u5bf9\u5e94\u4fee\u6539\u5f53\u524d key \u7684 status \u7684\u72b6\u6001\u503c\uff0c\u6240\u4ee5\u53ef\u4ee5\u5728 Interval \u4e2d\u6839\u636e key_pressed \u8fd9\u4e2a\u53d8\u91cf\u7684 status \u503c\u6267\u884c\u5bf9\u5e94\u7684 action \u52a8\u4f5c\uff0c\u4ee5\u4e0b\u4e3a\u6267\u884c\u6d41\u7a0b\u56fe\uff1a<\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u6309\u952e\u6d41\u7a0b\u56fe.png\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1095\" alt=\"\u6309\u952e\u6d41\u7a0b\u56fe\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u6309\u952e\u6d41\u7a0b\u56fe.png\" width=\"1156\" height=\"303\" \/><\/a><\/p>\n<p>HT \u7684\u8f7b\u91cf\u5316\uff0c\u81ea\u9002\u5e94\u8ba9\u5f53\u524d\u7cfb\u7edf\u5728\u624b\u673a\u7aef\u4e5f\u80fd\u6d41\u7545\u7684\u8fd0\u884c\uff0c\u5f53\u7136\u76ee\u524d\u79fb\u52a8\u7aef\u4e0e\u7535\u8111\u7aef\u7684 2D \u56fe\u7eb8\u90e8\u5206\u662f\u52a0\u8f7d\u4e0d\u540c\u7684\u56fe\u7eb8\uff0c\u5728\u79fb\u52a8\u7aef\u7684 2D \u90e8\u5206\u53ea\u7559\u4e0b\u64cd\u4f5c\u6316\u673a\u7684\u64cd\u4f5c\u90e8\u5206\uff0c\u5176\u5b83\u90e8\u5206\u8fdb\u884c\u4e86\u76f8\u5e94\u7684\u820d\u5f03\uff0c\u4e0d\u7136\u5728\u79fb\u52a8\u7aef\u5c0f\u5c4f\u5e55\u4e0b\u65e0\u6cd5\u5c55\u793a\u5982\u6b64\u591a\u7684\u6570\u636e\uff0c\u5728 3D \u573a\u666f\u90e8\u5206\u90fd\u662f\u5171\u7528\u540c\u4e00\u4e2a\u573a\u666f\uff0c\u901a\u8fc7\u573a\u666f\u642d\u5efa\u90e8\u5206\u7684\u6279\u91cf\u64cd\u4f5c\u4f7f\u5f97 3D \u5728\u624b\u673a\u7aef\u4e5f\u5341\u5206\u6d41\u7545\u7684\u8fd0\u884c\uff0c\u4ee5\u4e0b\u4e3a\u624b\u673a\u7aef\u8fd0\u884c\u622a\u56fe\uff1a<\/p>\n<p><a href=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u624b\u673a.gif\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-1096\" alt=\"\u624b\u673a\" src=\"http:\/\/www.hightopo.com\/blog\/wp-content\/uploads\/2019\/05\/\u624b\u673a.gif\" width=\"416\" height=\"734\" \/><\/a><\/p>\n<p><span style=\"font-size: 18pt;\"><strong>\u603b\u7ed3<\/strong><\/span><\/p>\n<p>\u7269\u8054\u7f51\u5df2\u7ecf\u878d\u5165\u4e86\u73b0\u4ee3\u751f\u6d3b\uff0c\u901a\u8fc7\u5185\u5d4c\u5230\u673a\u68b0\u8bbe\u5907\u4e2d\u7684\u7535\u5b50\u8bbe\u5907\uff0c\u6211\u4eec\u80fd\u591f\u5b8c\u6210\u5bf9\u673a\u68b0\u8bbe\u5907\u7684\u8fd0\u8f6c\u3001\u6027\u80fd\u7684\u76d1\u63a7\uff0c\u4ee5\u53ca\u5bf9\u673a\u68b0\u8bbe\u5907\u51fa\u73b0\u7684\u95ee\u9898\u8fdb\u884c\u53ca\u65f6\u7684\u9884\u8b66\u3002\u5728\u8be5\u7cfb\u7edf 2D 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