Module de.fabmax.physxjni

Package physx.extensions

Class PxMeshOverlapUtil

java.lang.Object

physx.NativeObject

physx.extensions.PxMeshOverlapUtil

public class PxMeshOverlapUtil
extends NativeObject

Utility class to find mesh triangles touched by a specified geometry object.

This class is a helper calling PxMeshQuery::findOverlapTriangleMesh or PxMeshQuery::findOverlapHeightField under the hood, while taking care of necessary memory management issues.

PxMeshQuery::findOverlapTriangleMesh and PxMeshQuery::findOverlapHeightField are the "raw" functions operating on user-provided fixed-size buffers. These functions abort with an error code in case of buffer overflow. PxMeshOverlapUtil is a convenient helper function checking this error code, and resizing buffers appropriately, until the desired call succeeds.

Returned triangle indices are stored within the class, and can be used with PxMeshQuery::getTriangle() to retrieve the triangle properties.

Nested Class Summary

Nested classes/interfaces inherited from class physx.NativeObject

NativeObject.Allocator<T>

Field Summary

Fields

Modifier and Type	Field	Description
static final int	ALIGNOF
static final int	SIZEOF

Fields inherited from class physx.NativeObject

address, isExternallyAllocated, SIZEOF_BYTE, SIZEOF_DOUBLE, SIZEOF_FLOAT, SIZEOF_INT, SIZEOF_LONG, SIZEOF_POINTER, SIZEOF_SHORT

Constructor Summary

Constructors

Modifier	Constructor	Description
	PxMeshOverlapUtil()
protected	PxMeshOverlapUtil(long address)

Method Summary

Modifier and Type	Method	Description
static PxMeshOverlapUtil	arrayGet(long baseAddress, int index)
void	destroy()
int	findOverlap(PxGeometry geom, PxTransform geomPose, PxTriangleMeshGeometry meshGeom, PxTransform meshPose)	Find the mesh triangles which touch the specified geometry object.
int	getNbResults()	Retrieves number of triangle indices after a findOverlap call.
PxU32ConstPtr	getResults()	Retrieves array of triangle indices after a findOverlap call.
static PxMeshOverlapUtil	wrapPointer(long address)

Methods inherited from class physx.NativeObject

checkNotNull, equals, getAddress, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Field Details

SIZEOF

public static final int SIZEOF

ALIGNOF

public static final int ALIGNOF

See Also:

• Constant Field Values

Constructor Details

PxMeshOverlapUtil

protected PxMeshOverlapUtil(long address)

PxMeshOverlapUtil

public PxMeshOverlapUtil()

Method Details

wrapPointer

public static PxMeshOverlapUtil wrapPointer(long address)

arrayGet

public static PxMeshOverlapUtil arrayGet(long baseAddress,
 int index)

destroy

public void destroy()

findOverlap

public int findOverlap(PxGeometry geom,
 PxTransform geomPose,
 PxTriangleMeshGeometry meshGeom,
 PxTransform meshPose)

Find the mesh triangles which touch the specified geometry object.

Parameters:

geom - The geometry object to test for mesh triangle overlaps. Supported geometries are #PxSphereGeometry, #PxCapsuleGeometry and #PxBoxGeometry

geomPose - Pose of the geometry object

meshGeom - The triangle mesh geometry to check overlap against

meshPose - Pose of the triangle mesh

Returns:

Number of overlaps found. Triangle indices can then be accessed through the #getResults() function.

See Also:

• PxGeometry
• PxTransform
• PxTriangleMeshGeometry

getResults

public PxU32ConstPtr getResults()

Retrieves array of triangle indices after a findOverlap call.

Returns:

Indices of touched triangles

getNbResults

public int getNbResults()

Retrieves number of triangle indices after a findOverlap call.

Returns:

Number of touched triangles