[ARX程序]：急，请帮忙，关于查询命令

小李飞刀

autocad中有查询命令，如massprop，可以查询出实体的体积，那么我如何在ａｒｘ的程序中将该体积附给一个参数呢？？因为我后面要用到该体积进行计算的，只有将查询出的体积付给某参数后，我才能在后面调用

如果不用这种方法，有其他的方法能得到体积并且能在后面调用吗？？

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最初由 小李飞刀 发布
[B]autocad中有查询命令，如massprop，可以查询出实体的体积，那么我如何在ａｒｘ的程序中将该体积附给一个参数呢？？因为我后面要用到该体积进行计算的，只有将查询出的体积付给某参数后，我才能在后面调用

如果不?.. [/B]

命令MSSSPROP就是用ARX写出来的啊。你看看

2. 
   
3. AcDb3dSolid
   
4. 
   
5. AcDb3dSolid Query Functions
   
6. 
   
7.   AcDb3dSolid::getMassProp
   
8. 
   
9. virtual Acad::ErrorStatus
   
10. getMassProp(
    
11.     double& volume,
    
12.     AcGePoint3d& centroid,
    
13.     double momInertia[3],
    
14.     double prodInertia[3],
    
15.     double prinMoments[3],
    
16.     AcGeVector3d prinAxes[3],
    
17.     double radiiGyration[3],
    
18. 
    
19.     AcDbExtents& extents) const;
    
20. 
    
21. volume        Returns the volume of the solid
    
22. centroid        Returns the centroid of the solid
    
23. momInertia        Returns the X, Y, and Z moments of inertia of the solid
    
24. prodInertia        Returns the X, Y, and Z products of inertia of the solid
    
25. prinMoments        Returns the X, Y, and Z principal moments of the solid
    
26. prinAxes        Returns the X, Y, and Z principal axes of the solid
    
27. radiiGyration        Returns the X, Y, and Z radii of gyration of the solid
    
28. 
    
29. extents        Returns the extents (bounding box) of the solid
    
30. 
    
31. This method is used for getting the volume properties of the solid (for
    
32. example,
    
33. mass properties with density == 1.0). All the properties are evaluated in the WCS.
    
34. Returns Acad::eOk if successful.
    
35. If there is an error in the ACIS modeler, then
    
36. Acad::eGeneralModelingFailure is returned.
    

<br /> AcDb3dSolid<br /> <br /> AcDb3dSolid Query Functions <br /> <br />   AcDb3dSolid::getMassProp<br /> <br /> virtual Acad::ErrorStatus<br /> getMassProp(<br />     double& volume,<br />     AcGePoint3d& centroid,<br />     double momInertia[3],<br />     double prodInertia[3],<br />     double prinMoments[3],<br />     AcGeVector3d prinAxes[3],<br />     double radiiGyration[3],<br /> <br />     AcDbExtents& extents) const;<br /> <br /> volume        Returns the volume of the solid<br /> centroid        Returns the centroid of the solid<br /> momInertia        Returns the X, Y, and Z moments of inertia of the solid<br /> prodInertia        Returns the X, Y, and Z products of inertia of the solid<br /> prinMoments        Returns the X, Y, and Z principal moments of the solid<br /> prinAxes        Returns the X, Y, and Z principal axes of the solid<br /> radiiGyration        Returns the X, Y, and Z radii of gyration of the solid<br /> <br /> extents        Returns the extents (bounding box) of the solid<br /> <br /> This method is used for getting the volume properties of the solid (for <br /> example, <br /> mass properties with density == 1.0). All the properties are evaluated in the WCS.<br /> Returns Acad::eOk if successful.<br /> If there is an error in the ACIS modeler, then <br /> Acad::eGeneralModelingFailure is returned.<br />

小李飞刀

我的问题解决了，太谢谢你了