Calculates the geometric properties of the section consisting of the visible surface(s) in the model
| obj | Pointer to this object | Allows multiple function calls to be chained together |
| cArea | double | Cross sectional area |
| cIxx | double | Second moment of area about x axis |
| cIyy | double | Second moment of area about y axis |
| cIxy | double | Product moment of area |
| cJ | double | Torsion constant |
| cAsx | double | Effective shear area in the x direction |
| cAsy | double | Effective shear area in the y direction |
| cxc | double | x coordinate of the centroid |
| cyc | double | y coordinate of the centroid |
| data | optional IFGeometryData | |
| fileName | optional string | temporary file name created to contain the boundary information; delete this file after calling this function |
| Return value | integer |
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