The results showed that using universal coordinate transform program and analytic geometry method could resolve the problem of measuring area for GPS without function of measuring area.

结果表明，利用通用坐标转换程序，结合解析法求算面积的方法是解决无测积功能GPS测量面积的理想方法。

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The Computer Aided Quality Inspection method of combining the coordinate measuring machine (CMM) and 2-d CAD geometry information extracted from DXF is illustrated by an example.

以一支座为实例介绍了一种利用三坐标测量仪与从二维工程图的DXF文件中提取的CAD几何信息相结合实现计算机辅助产品质量检测的方法。

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In the paper, the authors present the common law of structural topology and geometry and the method of abstract, and give the integer nominal coordinate system.

提出结构拓朴和几何的一般规律及其抽象的方法，引入整型名义坐标系，并在该坐标系下，利 用指示矩阵对抽象结构进行描述。

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