ifndef ofx_objLoader_h_
  define ofx_objLoader_h_
  
  include <ofMain.h>
  
  include <fstream>
  include <iostream>
  include <deque>
  using namespace std;
  
  

OBJ 3D geometry file import and gl rendering, the hands-off way.
author: jtnimoy applet.class ofxObjLoader myCube; myCube.loadFile("cube.obj"); myCube.outlineFaces(); //if you want to draw it wireframe // or myCube.fillFaces(); //if you want to draw it solid // or @endcode

  last updated 1-aug-06
  
  still needs to be implemented:
          - texture coordinates
          - faces with vertex counts greater than 255.
          - test the obj output of 3d apps other than blender.
  references:
          http://orion.math.iastate.edu/burkardt/data/obj/obj_format.txt
  */
  
  
  /**
     holds the information for a single face in an OBJ geometry file.
  */
  class objFace{
  public:
    

number of points in this face seperated by space.

  
    int count;
  
    

could be "%i/%i/%i" or "%i/%i" or number, and possibly "%i" @todo there should really be support for other types.

  
    int type;
  
    

vertices contained in the face

  
    long vertices[4];
  
    

normals of that vertex (optional - see ::type)

  
    long normals[4];
  
    

texture coord of that vertex (optional - see ::type)

  
    long texCoords[4];
  
  };
  
  

Just an private internal convenience class for OBJ. Would be nice to port OBJ to JPoint and have one less class.

  
  class objVertex{
  public:
    objVertex();
    objVertex(float x,float y,float z);
    float x;
    float y;
    float z;
  };
  
  

import 3D geometry from a file and draw it on your screen in 2 lines of code.
author: jtnimoy

  
  class ofxObjLoader{
   public:
  
    ofxObjLoader(char file[]); 
< instantiate a new OBJ object and have it import geometry from a 3D OBJ file.
    ofxObjLoader(); 
< empty constructor if you just want to populate your very own mesh chunk.


  
    ~ofxObjLoader();
  
    deque<objFace> faces; 
< list of faces


    deque<objVertex> vertices; 
< list of verts


    deque<objVertex> normals; 
< list of normals


    deque<objVertex> texCoords; 
< list of texture coordinates


    bool verbose; 
< whether or not to complain about parsing issues to stderr.


    void loadFile(char[]);//alias for open frameworks
  
    void outlineFaces(); 
< outline the faces like a mesh wireframe.


    void fillFaces(); 
< fill each face with triangle geometry.


    void pointVertices(); 
< render a point cloud.


    objVertex getVertex(int i); 
< get a specific internal vertex at a given place.


  
   private:
    void renderFace(int i); 
< render a single face, given an in-file ID number.


    void ignoreRestOfLine(ifstream *f); 
< parse til the next carraige return.


    void complain(char *s);
  };
  
  endif
  

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[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

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(C) Æliens 04/09/2009

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