作为工程图样矢量转换过程中一个十分重要的手段，光栅图像与矢量图形的混合编辑技术越来越受到人们的重视。

As a very important means in raster-to-vector conversion of engineering drawing, the technique of mixture edition of raster and vector is more and more attached importance to.

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体绘制技术常用于3维体数据场的可视化，其虽然可以生成高质量的投影图像，但通常不能绘制由体数据与点、线、面图形组成的混合场景。

Volume rendering is often used for 3d volumetric datasets visualization. It can generate high quality images, but can not render volumes and polygons combined scenes.

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