﻿AreaMassProperties Class

# AreaMassProperties Class

Contains static initialization methods and allows access to the computed metrics of area, area centroid and area moments in closed planar curves, in meshes, in surfaces, in hatches and in boundary representations.
Inheritance Hierarchy
SystemObject
Rhino.GeometryAreaMassProperties

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

The AreaMassProperties type exposes the following members.

Properties
NameDescription
Area
Gets the area solution.
AreaError
Gets the uncertainty in the area calculation.
Centroid
Gets the area centroid in the world coordinate system.
CentroidCoordinatesMomentsOfInertia
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.
CentroidCoordinatesMomentsOfInertiaError
Uncertainty in centroid coordinates moments of inertia calculation.
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.
CentroidCoordinatesSecondMoments
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.
CentroidCoordinatesSecondMomentsError
Uncertainty in centroid coordinates second moments calculation.
CentroidError
Gets the uncertainty in the centroid calculation.
WorldCoordinatesFirstMoments
Returns the world coordinate first moments if they were able to be calculated. X is integral of "x dm" over the area Y is integral of "y dm" over the area Z is integral of "z dm" over the area.
WorldCoordinatesFirstMomentsError
Uncertainty in world coordinates first moments calculation.
WorldCoordinatesMomentsOfInertia
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.
WorldCoordinatesMomentsOfInertiaError
Uncertainty in world coordinates moments of inertia calculation.
WorldCoordinatesProductMoments
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.
WorldCoordinatesProductMomentsError
Uncertainty in world coordinates second moments calculation.
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)
WorldCoordinatesSecondMoments
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.
WorldCoordinatesSecondMomentsError
Uncertainty in world coordinates second moments calculation.
Top
Methods
NameDescription
Compute(Brep)
Computes an AreaMassProperties for a brep.
Compute(Curve)
Computes an AreaMassProperties for a closed planar curve.
Compute(IEnumerableGeometryBase)
Computes the Area properties for a collection of geometric objects. At present only Breps, Surfaces, Meshes and Planar Closed Curves are supported.
Compute(Hatch)
Computes an AreaMassProperties for a hatch.
Compute(Mesh)
Computes an AreaMassProperties for a mesh.
Compute(Surface)
Computes an AreaMassProperties for a surface.
Compute(Curve, Double)
Computes an AreaMassProperties for a closed planar curve.
Compute(Brep, Boolean, Boolean, Boolean, Boolean)
Compute the AreaMassProperties for a single Brep.
Compute(IEnumerableGeometryBase, Boolean, Boolean, Boolean, Boolean)
Computes the AreaMassProperties for a collection of geometric objects. At present only Breps, Surfaces, Meshes and Planar Closed Curves are supported.
Compute(Mesh, Boolean, Boolean, Boolean, Boolean)
Compute the AreaMassProperties for a single Mesh.
Compute(Surface, Boolean, Boolean, Boolean, Boolean)
Compute the AreaMassProperties for a single Surface.
Dispose
Actively reclaims unmanaged resources that this instance uses.
Dispose(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.

Equals (Inherited from Object.)
Finalize
Passively reclaims unmanaged resources when the class user did not explicitly call Dispose().
(Overrides ObjectFinalize.)
GetHashCode (Inherited from Object.)
GetType (Inherited from Object.)
MemberwiseClone (Inherited from Object.)
ToString (Inherited from Object.)
Top
Version Information

#### Rhino for Mac

Supported in: 5.4

#### Rhino for Windows

Supported in: 6.4