http://www.charlesandhudson.com/archives/hand-tools-list-important.jpgPPT_LOGO_4b
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Autodesk Confidential Information November 2009
美酒 – 对象透明度
普通实体都支持
§AcDbEntity::setTransparency
自定义实体
§AcGiSubEntityTraits::setTransparency
§
ObjectARX 和.NET都支持
Building-73319465.jpg
透明度这个功能已经快两年了,去年我们做了一部分工作,今年将所有的管路都铺设完毕,您可以设置包括填充AutoCAD实体,或者自定义实体,以及去年的新功能overrule。

不过

Transparency is really a two year feature. AutoCAD 2010 introduced a change in drawing format, so we put the plumbing in place for transparency last year. This year we’ve gone in and connected all the pipework together so the plumbing now works. You can now set the transparency of native AutoCAD entities (including hatches) and also use transparency in your custom entities and overrules.

Transparency is also available as a per viewport layer override.

One slight limitation in the Beta is that to plot transparency, you have to plot to a raster format. Plotting to vector format will not plot transparency. We have a system variable (PLOTTRANSPARENCY) to help control this.