C# Class BEPUphysics.CollisionShapes.ConvexShapes.InertiaHelper

Helper class used to compute volume distribution information, which is in turn used to compute inertia tensor information.

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Public Properties

Property	Type	Description
InertiaTensorScale	float
NumberOfSamplesPerDimension	int

Public Methods

Method	Description
AveragePoints ( RawList pointContributions ) : Microsoft.Xna.Framework.Vector3	Averages together all the points in the point list.
ComputeCenter ( ConvexShape shape ) : Microsoft.Xna.Framework.Vector3	Computes the center of a convex shape.
ComputeCenter ( ConvexShape shape, float &volume ) : Microsoft.Xna.Framework.Vector3	Computes the center and volume of a convex shape.
ComputeVolumeDistribution ( ConvexShape shape, Microsoft.Xna.Framework.Vector3 &center, float &volume ) : Matrix3x3	Computes the volume and volume distribution of a shape based on a given center.
ComputeVolumeDistribution ( ConvexShape shape, float &volume ) : Matrix3x3	Computes the volume and volume distribution of a shape.
ComputeVolumeDistribution ( RawList pointContributions, Microsoft.Xna.Framework.Vector3 &center ) : Matrix3x3	Computes a volume distribution based on a bunch of point contributions.
GetPointContribution ( float pointWeight, Microsoft.Xna.Framework.Vector3 &center, Microsoft.Xna.Framework.Vector3 p, Matrix3x3 &contribution ) : void	Computes the volume contribution of a point.
GetPoints ( ConvexShape shape, float &volume, RawList outputPointContributions ) : void	Gets the point contributions within a convex shape.

Private Methods

Method	Description
ScanObject ( float rayIncrement, float maxLength, Microsoft.Xna.Framework.Vector3 &increment1, Microsoft.Xna.Framework.Vector3 &increment2, Ray &ray, RayHit &startHit, RayHit &endHit, RawList pointContributions, float &volume ) : void

Method Details

AveragePoints() public static method

Averages together all the points in the point list.

public static AveragePoints ( RawList pointContributions ) : Microsoft.Xna.Framework.Vector3
pointContributions	RawList	Point list to average.
return	Microsoft.Xna.Framework.Vector3

ComputeCenter() public static method

Computes the center of a convex shape.

public static ComputeCenter ( ConvexShape shape ) : Microsoft.Xna.Framework.Vector3
shape	ConvexShape	Shape to compute the center of.
return	Microsoft.Xna.Framework.Vector3

ComputeCenter() public static method

Computes the center and volume of a convex shape.

public static ComputeCenter ( ConvexShape shape, float &volume ) : Microsoft.Xna.Framework.Vector3
shape	ConvexShape	Shape to compute the center of.
volume	float	Volume of the shape.
return	Microsoft.Xna.Framework.Vector3

ComputeVolumeDistribution() public static method

Computes the volume and volume distribution of a shape based on a given center.

public static ComputeVolumeDistribution ( ConvexShape shape, Microsoft.Xna.Framework.Vector3 &center, float &volume ) : Matrix3x3
shape	ConvexShape	Shape to compute the volume information of.
center	Microsoft.Xna.Framework.Vector3	Location to use as the center of the shape when computing the volume distribution.
volume	float	Volume of the shape.
return	BEPUutilities.Matrix3x3

ComputeVolumeDistribution() public static method

Computes the volume and volume distribution of a shape.

public static ComputeVolumeDistribution ( ConvexShape shape, float &volume ) : Matrix3x3
shape	ConvexShape	Shape to compute the volume information of.
volume	float	Volume of the shape.
return	BEPUutilities.Matrix3x3

ComputeVolumeDistribution() public static method

Computes a volume distribution based on a bunch of point contributions.

public static ComputeVolumeDistribution ( RawList pointContributions, Microsoft.Xna.Framework.Vector3 &center ) : Matrix3x3
pointContributions	RawList	Point contributions to the volume distribution.
center	Microsoft.Xna.Framework.Vector3	Location to use as the center for purposes of computing point contributions.
return	BEPUutilities.Matrix3x3

GetPointContribution() public static method

Computes the volume contribution of a point.

public static GetPointContribution ( float pointWeight, Microsoft.Xna.Framework.Vector3 &center, Microsoft.Xna.Framework.Vector3 p, Matrix3x3 &contribution ) : void
pointWeight	float	Weight of the point.
center	Microsoft.Xna.Framework.Vector3	Location to use as the center for the purposes of computing the contribution.
p	Microsoft.Xna.Framework.Vector3	Point to compute the contribution of.
contribution	BEPUutilities.Matrix3x3	Contribution of the point.
return	void

GetPoints() public static method

Gets the point contributions within a convex shape.

public static GetPoints ( ConvexShape shape, float &volume, RawList outputPointContributions ) : void
shape	ConvexShape	Shape to compute the point contributions of.
volume	float	Volume of the shape.
outputPointContributions	RawList	Point contributions of the shape.
return	void

Property Details

InertiaTensorScale public_oe static_oe property

Value to scale any created entities' inertia tensors by. Larger tensors (above 1) improve stiffness of constraints and contacts, while smaller values (towards 1) are closer to 'realistic' behavior. Defaults to 2.5.

public static float InertiaTensorScale
return	float

NumberOfSamplesPerDimension public_oe static_oe property

Number of samples the system takes along a side of an object's AABB when voxelizing it.

public static int NumberOfSamplesPerDimension
return	int