jv.loader
Class PgObjLoader

java.lang.Object
  |
  +--jv.loader.PgObjLoader

public class PgObjLoader

extends java.lang.Object

Loader for geometry files given in Wavefront's OBJ file format. This reader supports a subset of the commands, similar to the subset supported by Java3d. For details see the webpage on supported file formats.

Version:

18.02.00, 1.30 extended (sk) for field specific entries 27.11.99, 1.20 revised (kp) Parsing of elements and polygons separated.
22.11.99, 1.10 revised (kp) Check incomplete data, obj extended.
00.00.98, 1.00 created (kp)

Author:

Konrad Polthier, Samy Khadem-Al-Charieh

Field Summary

protected static boolean	m_bElements
protected static boolean	m_bPolygonColors
protected static boolean	m_bPolygonNormals
protected static boolean	m_bPolygons
protected static boolean	m_bVertexNormals
protected static boolean	m_bVertexTextures
protected static boolean	m_bVertexVector
protected int	m_dimOfElements Dimension of elements.
protected int	m_dimOfPolygons Dimension of polygons.
protected int[]	m_meshType Mesh type information.
protected int	m_numElements
protected int	m_numMeshType
protected int	m_numPolygons
protected int	m_numVertexNormals
protected int	m_numVertexTextures
protected int	m_numVertexVectors
protected int	m_numVertices
protected java.util.Vector	m_vElement List of parsed elements, element connectivity.
protected java.util.Vector	m_vElementColor List of parsed element colors.
protected PiVector	m_vElementColorInd List of parsed element color indices.
protected java.util.Vector	m_vElementNormal List of parsed element normals.
protected java.util.Vector	m_vPolygon List of parsed polygons.
protected java.util.Vector	m_vPolygonColor List of parsed polygon colors.
protected PiVector	m_vPolygonColorInd List of parsed polygon color indices.
protected java.util.Vector	m_vVertex List of parsed vertices.
protected java.util.Vector	m_vVertexColor List of parsed vertex colors.
protected PiVector	m_vVertexColorInd List of parsed vertex color indices.
protected java.util.Vector	m_vVertexNormal List of parsed vertex normals.
protected java.util.Vector	m_vVertexTexture List of parsed vertex textures.
protected java.util.Vector	m_vVertexVector List of parsed vertex vectors or vertex used data.

Constructor Summary

PgObjLoader()

Method Summary

protected boolean	parse(java.io.BufferedReader bufReader) Parse a wavefront .obj file and fill instance variables of this class.
PgJvxSrc	read(java.io.BufferedReader in) Read geometry file in Wavefront's OBJ file format.
PgJvxSrc	read(java.lang.String fileName) Read geometry file in Wavefront's OBJ file format.
static java.lang.String	write(PgJvxSrc geom)
protected static java.lang.String	writeElements(int num, PiVector[] element) Write list of elements and element normals into string.
protected static java.lang.String	writePdVectors(java.lang.String type, java.lang.String id, int num, PdVector[] vector) Write list of double vectors into string.
protected static java.lang.String	writePolygons(int num, PiVector[] polygon) Write list of polygons and polygon normals into string.

Methods inherited from class java.lang.Object

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

Field Detail

m_numVertices

protected int m_numVertices

m_numVertexNormals

protected int m_numVertexNormals

m_numVertexTextures

protected int m_numVertexTextures

m_numVertexVectors

protected int m_numVertexVectors

m_numPolygons

protected int m_numPolygons

m_numElements

protected int m_numElements

m_numMeshType

protected int m_numMeshType

m_vVertex

protected java.util.Vector m_vVertex

List of parsed vertices.

m_vVertexColor

protected java.util.Vector m_vVertexColor

List of parsed vertex colors.

m_vVertexColorInd

protected PiVector m_vVertexColorInd

List of parsed vertex color indices.

m_vVertexNormal

protected java.util.Vector m_vVertexNormal

List of parsed vertex normals.

m_vVertexTexture

protected java.util.Vector m_vVertexTexture

List of parsed vertex textures.

m_vVertexVector

protected java.util.Vector m_vVertexVector

List of parsed vertex vectors or vertex used data.

m_meshType

protected int[] m_meshType

Mesh type information.

m_dimOfElements

protected int m_dimOfElements

Dimension of elements.

m_vElement

protected java.util.Vector m_vElement

List of parsed elements, element connectivity.

m_vElementColor

protected java.util.Vector m_vElementColor

List of parsed element colors.

m_vElementColorInd

protected PiVector m_vElementColorInd

List of parsed element color indices.

m_vElementNormal

protected java.util.Vector m_vElementNormal

List of parsed element normals.

m_dimOfPolygons

protected int m_dimOfPolygons

Dimension of polygons.

m_vPolygon

protected java.util.Vector m_vPolygon

List of parsed polygons.

m_vPolygonColor

protected java.util.Vector m_vPolygonColor

List of parsed polygon colors.

m_vPolygonColorInd

protected PiVector m_vPolygonColorInd

List of parsed polygon color indices.

m_bVertexNormals

protected static boolean m_bVertexNormals

m_bVertexTextures

protected static boolean m_bVertexTextures

m_bVertexVector

protected static boolean m_bVertexVector

m_bElements

protected static boolean m_bElements

m_bPolygons

protected static boolean m_bPolygons

m_bPolygonColors

protected static boolean m_bPolygonColors

m_bPolygonNormals

protected static boolean m_bPolygonNormals

Constructor Detail

PgObjLoader

public PgObjLoader()

Method Detail

read

public PgJvxSrc read(java.lang.String fileName)

Read geometry file in Wavefront's OBJ file format.

read

public PgJvxSrc read(java.io.BufferedReader in)

Read geometry file in Wavefront's OBJ file format.

parse

protected boolean parse(java.io.BufferedReader bufReader)
                 throws java.io.IOException

Parse a wavefront .obj file and fill instance variables of this class. This is a helper routine of read.

See Also:

PgObjLoader#read(PgGeometry, String)

write

public static java.lang.String write(PgJvxSrc geom)

writePdVectors

protected static java.lang.String writePdVectors(java.lang.String type,
                                                 java.lang.String id,
                                                 int num,
                                                 PdVector[] vector)

Write list of double vectors into string. Numbers with absolute value less than EPS are shown as zero. This avoids the annoying fact that double precision numbers fill the whole text area hiding the exponent, which hides their small value.

writeElements

protected static java.lang.String writeElements(int num,
                                                PiVector[] element)

Write list of elements and element normals into string. Numbers with absolute value less than EPS are shown as zero. This avoids the anoying fact that double precision numbers fill the whole text area hiding the exponent, which hides their small value.

writePolygons

protected static java.lang.String writePolygons(int num,
                                                PiVector[] polygon)

Write list of polygons and polygon normals into string. Numbers with absolute value less than EPS are shown as zero. This avoids the anoying fact that double precision numbers fill the whole text area hiding the exponent, which hides their small value.