Package org.jzy3d.io.obj

Class OBJFile

java.lang.Object
org.jzy3d.io.obj.OBJFile
public class OBJFile extends Object
Translated from C++ Version: nvModel.h - Model support class The nvModel class implements an interface for a multipurpose model object. This class is useful for loading and formatting meshes for use by OpenGL. It can compute face normals, tangents, and adjacency information. The class supports the obj file format. Author: Evan Hart Email: sdkfeedback@nvidia.com Copyright (c) NVIDIA Corporation. All rights reserved.

  • Field Details

    • NumPrimTypes

      public static final int NumPrimTypes
      See Also:

    • autoNormal

      protected boolean autoNormal
      Will calculate normals if they are missing

    • positions_

      protected List<Float> positions_

    • normals_

      protected List<Float> normals_

    • posSize_

      protected int posSize_

    • pIndex_

      protected List<Integer> pIndex_

    • nIndex_

      protected List<Integer> nIndex_

    • indices_

      protected IntBuffer indices_

    • vertices_

      protected FloatBuffer vertices_

    • pOffset_

      protected int pOffset_

    • nOffset_

      protected int nOffset_

    • vtxSize_

      protected int vtxSize_

    • openEdges_

      protected int openEdges_

  • Constructor Details

    • OBJFile

      public OBJFile()

  • Method Details

    • loadModelFromFilename

      public boolean loadModelFromFilename(String file)

    • loadModelFromURL

      public boolean loadModelFromURL(URL fileURL)

    • loadModelFromFile

      public boolean loadModelFromFile(File file)

    • loadModelFromStream

      public boolean loadModelFromStream(InputStream inputStream)
      This function attempts to determine the type of the filename passed as a parameter. If it understands that file type, it attempts to parse and load the file into its raw data structures. If the file type is recognized and successfully parsed, the function returns true, otherwise it returns false.

    • parseObjVertex

      public void parseObjVertex(String line, float[] val)
      Vertex/Normal Format 
       v 1.0 0.0 0.0 
 vn 0.0 1.0 0.0
 
 n : normal

    • parseObjFace

      public boolean parseObjFace(String line, int[][] idx, boolean hasNormals)
      Face Format 
       f v1/vt1/vn1 v2/vt2/vn2 v3/vt3/vn3
 
 t : texture
 n : normal

    • compileModel

      public void compileModel()
      This function takes the raw model data in the internal structures, and attempts to bring it to a format directly accepted for vertex array style rendering. This means that a unique compiled vertex will exist for each unique combination of position, normal, tex coords, etc that are used in the model. The prim parameter, tells the model what type of index list to compile. By default it compiles a simple triangle mesh with no connectivity.

    • computeBoundingBox

      public BoundingBox3d computeBoundingBox()
      Returns the points defining the axis-aligned bounding box containing the model.

    • clearNormals

      public void clearNormals()

    • hasNormals

      public boolean hasNormals()

    • getPositionSize

      public int getPositionSize()

    • getNormalSize

      public int getNormalSize()

    • getPositions

      public List<Float> getPositions()

    • getNormals

      public List<Float> getNormals()

    • getPositionIndices

      public List<Integer> getPositionIndices()

    • getNormalIndices

      public List<Integer> getNormalIndices()

    • getPositionCount

      public int getPositionCount()

    • getNormalCount

      public int getNormalCount()

    • getIndexCount

      public int getIndexCount()

    • getCompiledVertices

      public FloatBuffer getCompiledVertices()

    • getCompiledIndices

      public IntBuffer getCompiledIndices()

    • getCompiledPositionOffset

      public int getCompiledPositionOffset()

    • getCompiledNormalOffset

      public int getCompiledNormalOffset()

    • getCompiledVertexSize

      public int getCompiledVertexSize()

    • getCompiledVertexCount

      public int getCompiledVertexCount()

    • getOpenEdgeCount

      public int getOpenEdgeCount()

    • toString

      public String toString()
      Overrides:
      toString in class Object