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<?xml-stylesheet type="text/xsl" href="https://communities.bentley.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>[MSCE C++]如何用代码实现change mesh normal的相关功能？</title><link>https://communities.bentley.com/communities/other_communities/chinafirst/f/microstation-projectwise/185968/msce-c-change-mesh-normal</link><description>在mesh工具里有一个change mesh normal按钮，可以实现unify normals(法线方向统一)和reverse normal(法线反向)两个功能，请问这两个功能如何用代码实现？我试过 
 
 
 PolyfaceHeader的ReverseNormals函数，好像不管用。。。。。</description><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>RE: [MSCE C++]如何用代码实现change mesh normal的相关功能？</title><link>https://communities.bentley.com/thread/545534?ContentTypeID=1</link><pubDate>Wed, 25 Sep 2019 03:22:08 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:d1102bcb-a843-4172-853b-981a8f661341</guid><dc:creator>程远 李</dc:creator><description>&lt;p&gt;无意中发现只要改变顺序，用物体来切mesh，就能得到下半部分了。。。。&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: [MSCE C++]如何用代码实现change mesh normal的相关功能？</title><link>https://communities.bentley.com/thread/545320?ContentTypeID=1</link><pubDate>Tue, 24 Sep 2019 02:49:30 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:690412fc-ba57-44cf-8255-5a748d113436</guid><dc:creator>程远 李</dc:creator><description>&lt;p&gt;呵呵，如果只是要计算下半部分体积，我完全可以用总体积减去上半部分体积的。算了，不纠结这个问题了，谢谢解答。&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: [MSCE C++]如何用代码实现change mesh normal的相关功能？</title><link>https://communities.bentley.com/thread/545288?ContentTypeID=1</link><pubDate>Tue, 24 Sep 2019 01:13:02 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:6aa81a56-1a63-4b48-8d4b-f0a48ce428d6</guid><dc:creator>Yongan.Fu</dc:creator><description>&lt;p&gt;试一下这个函数看可以否？返回填挖方cutMesh和fillMesh。&lt;/p&gt;
&lt;p&gt;&lt;img alt=" " src="/resized-image/__size/620x240/__key/communityserver-discussions-components-files/343510/7723.png" /&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: [MSCE C++]如何用代码实现change mesh normal的相关功能？</title><link>https://communities.bentley.com/thread/545186?ContentTypeID=1</link><pubDate>Mon, 23 Sep 2019 09:47:36 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:c9911e7c-40e8-4277-8b09-90e2de6ef2b4</guid><dc:creator>程远 李</dc:creator><description>&lt;p&gt;那怎么办？我用mesh去切其他物体时，由于自动生成的法线都是向上的，得到的结果都是上半部分，能不能用代码变成向下，让我得到下半部分？总不至于要我自己添加法线数据吧？？？&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: [MSCE C++]如何用代码实现change mesh normal的相关功能？</title><link>https://communities.bentley.com/thread/545173?ContentTypeID=1</link><pubDate>Mon, 23 Sep 2019 08:29:11 GMT</pubDate><guid isPermaLink="false">6dad98f5-dbc9-4c4d-a9ba-e9da8dc6aa8e:97ff8c5a-14df-495e-b79d-5bd26615c63e</guid><dc:creator>Yongan.Fu</dc:creator><description>&lt;p&gt;这个ReverseNormals是反转每个Mesh顶点中保存的Normal数据的，但普通的Mesh顶点中都不保存该值。&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>