Package com.jme3.bullet.collision.shapes.infos

Class IndexedMesh

java.lang.Object
com.jme3.bullet.NativePhysicsObject
com.jme3.bullet.collision.shapes.infos.IndexedMesh
All Implemented Interfaces:
com.jme3.export.Savable, com.jme3.util.clone.JmeCloneable, Cloneable, Comparable<NativePhysicsObject>
public class IndexedMesh extends NativePhysicsObject implements com.jme3.util.clone.JmeCloneable, com.jme3.export.Savable
An indexed triangle mesh based on Bullet's btIndexedMesh. Immutable except for read(com.jme3.export.JmeImporter).

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final Logger
    logger
    message logger for this class

    Fields inherited from class com.jme3.bullet.NativePhysicsObject

    loggerN

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    protected
    IndexedMesh()
    No-argument constructor needed by SavableClassUtil.
     
    IndexedMesh(CollisionShape shape, int meshResolution)
    Instantiate a IndexedMesh to visualize the specified collision shape.
     
    IndexedMesh(CollisionShape shape, int resolution, boolean dedup)
    Instantiate an IndexedMesh from the debug mesh of the specified CollisionShape.
     
    IndexedMesh(com.jme3.math.Vector3f[] positionArray, int[] indexArray)
    Instantiate an IndexedMesh based on the specified positions and indices.
     
    IndexedMesh(com.jme3.scene.Mesh jmeMesh)
    Instantiate an IndexedMesh based on the specified JME mesh, without transforming coordinates.
     
    IndexedMesh(com.jme3.scene.Mesh jmeMesh, com.jme3.math.Transform transform)
    Instantiate an IndexedMesh based on the specified JME mesh and coordinate transform.
     
    IndexedMesh(FloatBuffer buffer)
    Instantiate an IndexedMesh based on the specified vertex positions.
     
    IndexedMesh(FloatBuffer positionBuffer, IntBuffer indexBuffer)
    Instantiate an IndexedMesh based on the specified positions and indices.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    cloneFields(com.jme3.util.clone.Cloner cloner, Object original)
    Callback from Cloner to convert this shallow-cloned mesh into a deep-cloned one, using the specified Cloner and original to resolve copied fields.
    IntBuffer
    copyIndices()
    Copy the triangle indices.
    void
    copyTriangle(int triangleIndex, com.jme3.math.Triangle destination)
    Copy the vertex positions of the specified triangle.
    FloatBuffer
    copyTriangles()
    Copy the unindexed triangle vertices to a new buffer.
    FloatBuffer
    copyVertexPositions()
    Copy the vertex positions to a new buffer.
    int
    countTriangles()
    Count how many triangles are in this mesh.
    int
    countVertices()
    Count how many vertices are in this mesh.
    jme3utilities.math.VectorSet
    distinctVertices()
    Return the set of distinct vertices.
    com.jme3.math.Vector3f[]
    footprint(com.jme3.math.Transform meshToWorld)
    Estimate the footprint of the mesh.
    IndexedMesh
    jmeClone()
    Create a shallow clone for the JME cloner.
    float
    maxDistance(com.jme3.math.Transform meshToWorld)
    Calculate how far the mesh extends from some origin.
    void
    maxMin(com.jme3.math.Vector3f storeMaxima, com.jme3.math.Vector3f storeMinima)
    Find the maximum and minimum coordinates for each axis among the vertices in this mesh.
    void
    read(com.jme3.export.JmeImporter importer)
    De-serialize this mesh from the specified importer, for example when loading from a J3O file.
    IndexedMesh[]
    split(com.jme3.math.Plane splittingPlane)
    Attempt to divide this mesh into 2 meshes.
    float
    surfaceArea()
    Calculate the surface area of the mesh.
    float
    volumeConvex()
    Calculate volume of the mesh, assuming it's both closed and convex.
    void
    write(com.jme3.export.JmeExporter exporter)
    Serialize this mesh to the specified exporter, for example when saving to a J3O file.

    Methods inherited from class com.jme3.bullet.NativePhysicsObject

    compareTo, countTrackers, dumpTrackers, equals, freeUnusedObjects, hasAssignedNativeObject, hashCode, nativeId, reassignNativeId, setNativeId, setNativeIdNotTracked, toString, unassignNativeObject

    Methods inherited from class java.lang.Object

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

  • Field Details

    • logger

      public static final Logger logger
      message logger for this class

  • Constructor Details

    • IndexedMesh

      protected IndexedMesh()
      No-argument constructor needed by SavableClassUtil.

    • IndexedMesh

      public IndexedMesh(CollisionShape shape, int resolution, boolean dedup)
      Instantiate an IndexedMesh from the debug mesh of the specified CollisionShape.
      Parameters:
      shape - the input shape (not null, unaffected)
      resolution - ignored for concave shapes (0=low, 1=high)
      dedup - true→deduplicate vertices, false→don't deduplicate

    • IndexedMesh

      public IndexedMesh(com.jme3.scene.Mesh jmeMesh)
      Instantiate an IndexedMesh based on the specified JME mesh, without transforming coordinates.
      Parameters:
      jmeMesh - the input JME mesh (not null, unaffected, mode=Triangles/TriangleFan/TriangleStrip)

    • IndexedMesh

      public IndexedMesh(com.jme3.scene.Mesh jmeMesh, com.jme3.math.Transform transform)
      Instantiate an IndexedMesh based on the specified JME mesh and coordinate transform.
      Parameters:
      jmeMesh - the input JME mesh (not null, unaffected, mode=Triangles/TriangleFan/TriangleStrip)
      transform - the Transform to apply to vertex positions (unaffected) or null to use untransformed vertex positions

    • IndexedMesh

      public IndexedMesh(com.jme3.math.Vector3f[] positionArray, int[] indexArray)
      Instantiate an IndexedMesh based on the specified positions and indices.
      Parameters:
      positionArray - (not null, unaffected)
      indexArray - (not null, unaffected, length a multiple of 3)

    • IndexedMesh

      public IndexedMesh(FloatBuffer buffer)
      Instantiate an IndexedMesh based on the specified vertex positions. An index will be assigned to each distinct position.
      Parameters:
      buffer - the vertex positions of a non-indexed triangle mesh (not null, flipped, limit a multiple of 9, unaffected)

    • IndexedMesh

      public IndexedMesh(FloatBuffer positionBuffer, IntBuffer indexBuffer)
      Instantiate an IndexedMesh based on the specified positions and indices.
      Parameters:
      positionBuffer - (not null, not flipped, length a multiple of 3, alias created)
      indexBuffer - (not null, not flipped, length a multiple of 3, alias created)

    • IndexedMesh

      public IndexedMesh(CollisionShape shape, int meshResolution)
      Instantiate a IndexedMesh to visualize the specified collision shape.
      Parameters:
      shape - shape to visualize (not null, not compound, unaffected)
      meshResolution - (0=low, 1=high)

  • Method Details

    • copyIndices

      public IntBuffer copyIndices()
      Copy the triangle indices.
      Returns:
      a new, direct, unflipped buffer

    • copyTriangle

      public void copyTriangle(int triangleIndex, com.jme3.math.Triangle destination)
      Copy the vertex positions of the specified triangle.
      Parameters:
      triangleIndex - the index of the source triangle (≥0)
      destination - storage for the result (not null, modified)

    • copyTriangles

      public FloatBuffer copyTriangles()
      Copy the unindexed triangle vertices to a new buffer.
      Returns:
      a new, direct, unflipped buffer

    • copyVertexPositions

      public FloatBuffer copyVertexPositions()
      Copy the vertex positions to a new buffer.
      Returns:
      a new, direct, unflipped buffer

    • countTriangles

      public int countTriangles()
      Count how many triangles are in this mesh.
      Returns:
      the count (≥0)

    • countVertices

      public int countVertices()
      Count how many vertices are in this mesh.
      Returns:
      the count (≥0)

    • distinctVertices

      public jme3utilities.math.VectorSet distinctVertices()
      Return the set of distinct vertices.
      Returns:
      a new instance of VectorSet

    • footprint

      public com.jme3.math.Vector3f[] footprint(com.jme3.math.Transform meshToWorld)
      Estimate the footprint of the mesh.
      Parameters:
      meshToWorld - the world transform to use (not null, unaffected)
      Returns:
      a new array of corner locations (in world coordinates)

    • maxDistance

      public float maxDistance(com.jme3.math.Transform meshToWorld)
      Calculate how far the mesh extends from some origin.
      Parameters:
      meshToWorld - the transform to apply to vertex locations (not null, unaffected)
      Returns:
      the maximum length of the transformed vectors (≥0)

    • maxMin

      public void maxMin(com.jme3.math.Vector3f storeMaxima, com.jme3.math.Vector3f storeMinima)
      Find the maximum and minimum coordinates for each axis among the vertices in this mesh.
      Parameters:
      storeMaxima - storage for the maxima (not null, modified)
      storeMinima - storage for the minima (not null, modified)

    • split

      public IndexedMesh[] split(com.jme3.math.Plane splittingPlane)
      Attempt to divide this mesh into 2 meshes.
      Parameters:
      splittingPlane - the splitting plane (not null, unaffected)
      Returns:
      a pair of meshes, the first mesh generated by the plane's minus side and the 2nd mesh generated by its plus side; either mesh may be null, indicating an empty mesh

    • surfaceArea

      public float surfaceArea()
      Calculate the surface area of the mesh.
      Returns:
      the area (in square mesh units, ≥0)

    • volumeConvex

      public float volumeConvex()
      Calculate volume of the mesh, assuming it's both closed and convex.
      Returns:
      the volume (in cubic mesh units, ≥0)

    • cloneFields

      public void cloneFields(com.jme3.util.clone.Cloner cloner, Object original)
      Callback from Cloner to convert this shallow-cloned mesh into a deep-cloned one, using the specified Cloner and original to resolve copied fields.
      Specified by:
      cloneFields in interface com.jme3.util.clone.JmeCloneable
      Parameters:
      cloner - the Cloner that's cloning this mesh (not null)
      original - the instance from which this mesh was shallow-cloned (not null, unaffected)

    • jmeClone

      public IndexedMesh jmeClone()
      Create a shallow clone for the JME cloner.
      Specified by:
      jmeClone in interface com.jme3.util.clone.JmeCloneable
      Returns:
      a new instance

    • read

      public void read(com.jme3.export.JmeImporter importer) throws IOException
      De-serialize this mesh from the specified importer, for example when loading from a J3O file.
      Specified by:
      read in interface com.jme3.export.Savable
      Parameters:
      importer - (not null)
      Throws:
      IOException - from the importer

    • write

      public void write(com.jme3.export.JmeExporter exporter) throws IOException
      Serialize this mesh to the specified exporter, for example when saving to a J3O file.
      Specified by:
      write in interface com.jme3.export.Savable
      Parameters:
      exporter - (not null)
      Throws:
      IOException - from the exporter