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VolumeMassProperties Class

Contains static initialization methods and allows access to the computed metrics of volume, volume centroid and volume moments in in solid meshes, in solid surfaces and in solid (closed) boundary representations.
Inheritance Hierarchy
SystemObject
  Rhino.GeometryVolumeMassProperties

Namespace:  Rhino.Geometry
Assembly:  RhinoCommon (in RhinoCommon.dll)
Syntax
public class VolumeMassProperties : IDisposable

The VolumeMassProperties type exposes the following members.

Properties
  NameDescription
Public propertyCentroid
Gets the volume centroid in the world coordinate system.
Public propertyCentroidCoordinatesMomentsOfInertia
Moments of inertia with respect to centroid coordinate system. X = integral of ((y-y0)^2 + (z-z0)^2) dm Y = integral of ((z-z0)^2 + (x-x0)^2) dm Z = integral of ((z-z0)^2 + (y-y0)^2) dm where (x0,y0,z0) = centroid.
Public propertyCentroidCoordinatesMomentsOfInertiaError
Uncertainty in centroid coordinates moments of inertia calculation.
Public propertyCentroidCoordinatesRadiiOfGyration
Radii of gyration with respect to centroid coordinate system. X = sqrt(integral of ((y-y0)^2 + (z-z0)^2) dm/M) Y = sqrt(integral of ((z-z0)^2 + (x-x0)^2) dm/M) Z = sqrt(integral of ((z-z0)^2 + (y-y0)^2) dm/M) where (x0,y0,z0) = centroid.
Public propertyCentroidCoordinatesSecondMoments
Second moments with respect to centroid coordinate system. X = integral of (x-x0)^2 dm Y = integral of (y-y0)^2 dm Z = integral of (z-z0)^2 dm where (x0,y0,z0) = centroid.
Public propertyCentroidCoordinatesSecondMomentsError
Uncertainty in centroid coordinates second moments calculation.
Public propertyCentroidError
Gets the uncertainty in the Centroid calculation.
Public propertyCode exampleVolume
Gets the volume solution.
Public propertyCode exampleVolumeError
Gets the uncertainty in the volume calculation.
Public propertyWorldCoordinatesFirstMoments
Returns the world coordinate first moments if they were able to be calculated. X is integral of "x dm" over the volume Y is integral of "y dm" over the volume Z is integral of "z dm" over the volume.
Public propertyWorldCoordinatesFirstMomentsError
Uncertainty in world coordinates first moments calculation.
Public propertyWorldCoordinatesMomentsOfInertia
The moments of inertia about the world coordinate axes. X = integral of (y^2 + z^2) dm Y = integral of (z^2 + x^2) dm Z = integral of (z^2 + y^2) dm.
Public propertyWorldCoordinatesMomentsOfInertiaError
Uncertainty in world coordinates moments of inertia calculation.
Public propertyWorldCoordinatesProductMoments
Returns the world coordinate product moments if they were able to be calculated. X is integral of "xy dm" over the area Y is integral of "yz dm" over the area Z is integral of "zx dm" over the area.
Public propertyWorldCoordinatesProductMomentsError
Uncertainty in world coordinates second moments calculation.
Public propertyWorldCoordinatesRadiiOfGyration
Radii of gyration with respect to world coordinate system. X = sqrt(integral of (y^2 + z^2) dm/M) Y = sqrt(integral of (z^2 + x^2) dm/M) Z = sqrt(integral of (z^2 + y^2) dm/M)
Public propertyWorldCoordinatesSecondMoments
Returns the world coordinate first moments if they were able to be calculated. X is integral of "xx dm" over the area Y is integral of "yy dm" over the area Z is integral of "zz dm" over the area.
Public propertyWorldCoordinatesSecondMomentsError
Uncertainty in world coordinates second moments calculation.
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Methods
  NameDescription
Public methodStatic memberCompute(Brep)
Compute the VolumeMassProperties for a single Brep.
Public methodStatic memberCompute(IEnumerableGeometryBase)
Computes the VolumeMassProperties for a collection of geometric objects. At present only Breps, Surfaces, and Meshes are supported.
Public methodStatic memberCompute(Mesh)
Compute the VolumeMassProperties for a single Mesh.
Public methodStatic memberCompute(Surface)
Compute the VolumeMassProperties for a single Surface.
Public methodStatic memberCompute(Brep, Boolean, Boolean, Boolean, Boolean)
Compute the VolumeMassProperties for a single Brep.
Public methodStatic memberCompute(IEnumerableGeometryBase, Boolean, Boolean, Boolean, Boolean)
Computes the VolumeMassProperties for a collection of geometric objects. At present only Breps, Surfaces, Meshes and Planar Closed Curves are supported.
Public methodStatic memberCompute(Mesh, Boolean, Boolean, Boolean, Boolean)
Compute the VolumeMassProperties for a single Mesh.
Public methodStatic memberCompute(Surface, Boolean, Boolean, Boolean, Boolean)
Compute the VolumeMassProperties for a single Surface.
Public methodDispose
Actively reclaims unmanaged resources that this instance uses.
Protected methodDispose(Boolean)
For derived class implementers.

This method is called with argument true when class user calls Dispose(), while with argument false when the Garbage Collector invokes the finalizer, or Finalize() method.

You must reclaim all used unmanaged resources in both cases, and can use this chance to call Dispose on disposable fields if the argument is true.

Also, you must call the base virtual method within your overriding method.

Public methodEquals
Determines whether the specified object is equal to the current object.
(Inherited from Object.)
Protected methodFinalize
Passively reclaims unmanaged resources when the class user did not explicitly call Dispose().
(Overrides ObjectFinalize.)
Public methodGetHashCode
Serves as the default hash function.
(Inherited from Object.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Protected methodMemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
Public methodSum
Sum mass properties together to get an aggregate mass.
Public methodToString
Returns a string that represents the current object.
(Inherited from Object.)
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Version Information

Rhino for Mac

Supported in: 5.4

Rhino for Windows

Supported in: 6.17
See Also