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Depending on the input CAD format read, the HOOPS Exchange API is able to retrieve or re-compute several attributes concerning the “physical properties” (like the mass or volume) of a model.

Note
As its name suggests, the A3DComputePolyBrepPhysicalProperties() function is able to re-compute several information like the surface or volume from a brep. However please keep in mind that those values may slightly differ from the native CAD software ones since the modeller used is different !

Concerning the values that are directly read from CAD files, here’s an array with their different names:

Format/Propertie	Mass	Density	Surface	Volume
Catia	Not available	Read `A3DMiscMaterialPropertiesData::m_dDensity`	Calculated `A3DPhysicalPropertiesData::m_dSurface`	Calculated `A3DPhysicalPropertiesData::m_dVolume`
Solidworks	Read `A3DMiscAttributeData::SW-MassProp-Config-0`	Not available	Calculated `A3DPhysicalPropertiesData::m_dSurface`	Calculated `A3DPhysicalPropertiesData::m_dVolume`
Creo/ProE	Read `A3DMiscAttributeData::MASS`	Read `A3DMiscMaterialPropertiesData::m_dDensity`	Calculated `A3DPhysicalPropertiesData::m_dSurface`	Calculated `A3DPhysicalPropertiesData::m_dVolume`
NX	Read `A3DMiscAttributeData::j0WeightCalc`	Read `A3DMiscAttributeData::j0Density`	Read `A3DMiscAttributeData::j0CPArea`	Read `A3DMiscAttributeData::j0GeoV`
JT	Not available	Not available	Calculated `A3DPhysicalPropertiesData::m_dSurface`	Calculated `A3DPhysicalPropertiesData::m_dVolume`
Inventor	Read `A3DMiscAttributeData::kMassDesignTrackingProperties`	Read `A3DMiscAttributeData::kDensityDesignTrackingProperties`	Read `A3DMiscAttributeData::kSurfaceAreaDesignTrackingProperties`	Read `A3DMiscAttributeData::kVolumeDesignTrackingProperties`
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