A3DPhysicalPropertiesData Struct Reference

Physical property settings. More...

Data Fields

A3DDouble m_adAreaMatrixOfInertia [9]
 
A3DDouble m_adVolumeMatrixOfInertia [9]
 
A3DBool m_bIncludeHiddenRIs
 
A3DBool m_bUseGeometryOnRiBRep
 
A3DBool m_bVolumeComputed
 
A3DDouble m_dAccuracyLevel
 
A3DDouble m_dSurface
 
A3DDouble m_dVolume
 
A3DVector3dData m_sGravityCenter
 
A3DVector3dData m_sSurfacicGravityCenter
 

Detailed Description

Physical property settings.

Version
5.2

Field Documentation

A3DVector3dData A3DPhysicalPropertiesData::m_sGravityCenter

Gravity center. The value returned is in the unit of the entity (Modelfile unit if using A3DComputeModelFilePhysicalProperties on model file, Brep Unit (adjustable through an input scale) if using A3DComputePolyBrepPhysicalProperties or A3DComputePhysicalProperties).

A3DDouble A3DPhysicalPropertiesData::m_dSurface

B-rep model surface area of resulting B-rep. The value returned is in the unit of the entity (Modelfile unit if using A3DComputeModelFilePhysicalProperties on model file, Brep Unit (adjustable through an input scale) if using A3DComputePolyBrepPhysicalProperties or A3DComputePhysicalProperties).

A3DBool A3DPhysicalPropertiesData::m_bVolumeComputed

When false, typically in case the B-rep is not a solid, indicates that the volumic properties were not computed.

A3DDouble A3DPhysicalPropertiesData::m_dVolume

B-rep model volume of resulting B-rep. The value returned is in the unit of the entity (Modelfile unit if using A3DComputeModelFilePhysicalProperties on model file, Brep Unit (adjustable through an input scale) if using A3DComputePolyBrepPhysicalProperties or A3DComputePhysicalProperties).

A3DVector3dData A3DPhysicalPropertiesData::m_sSurfacicGravityCenter

Gravity center using the surfaces' area as weight, rather than volume. The value returned is in the unit of the entity (Modelfile unit if using A3DComputeModelFilePhysicalProperties on model file, Brep Unit (adjustable through an input scale) if using A3DComputePolyBrepPhysicalProperties or A3DComputePhysicalProperties).

Version
11.2
A3DDouble A3DPhysicalPropertiesData::m_adAreaMatrixOfInertia[9]

The inertia matrix calculated using the surface rather than the volume. The value returned is in the unit of the entity (Modelfile unit if using A3DComputeModelFilePhysicalProperties on model file, Brep Unit (adjustable through an input scale) if using A3DComputePolyBrepPhysicalProperties or A3DComputePhysicalProperties).

Version
11.2
A3DDouble A3DPhysicalPropertiesData::m_adVolumeMatrixOfInertia[9]

The volumic inertia matrix. The value returned is in the unit of the entity (Modelfile unit if using A3DComputeModelFilePhysicalProperties on model file, Brep Unit (adjustable through an input scale) if using A3DComputePolyBrepPhysicalProperties or A3DComputePhysicalProperties).

Version
11.2
A3DBool A3DPhysicalPropertiesData::m_bUseGeometryOnRiBRep

An input value which, if set to false, starts the calculations using RI tessellation (and internally computes a temporary tessellation if none is present). If set to true, uses an A3DRiBrepModel's geometry, and returns an error if it does not have any geometry. False by default.

Version
11.2
A3DDouble A3DPhysicalPropertiesData::m_dAccuracyLevel

An input value between 0.0 and 1.0 (default is 0.99). Approaching 1.0 will make the calculation more accurate, but slower and less stable. The dependency is not linear. This can affect calculations on both tessellation and geometry, and when m_bUseGeometryOnRiBRep=false, will internally recompute tessellation on A3DRiBrepModels that contain geometry, without affecting input data.

Version
11.2
A3DBool A3DPhysicalPropertiesData::m_bIncludeHiddenRIs

An input boolean (false by default), that determines whether hidden solids and surfaces are to be taken into account when requesting the computation on a modelfile.