[Bprocessor-commit] gl/src/net/sourceforge/bprocessor/gl/model GlCamera.java, NONE, 1.1

[Nordholt <nor...@us...>]

Update of /cvsroot/bprocessor/gl/src/net/sourceforge/bprocessor/gl/model
In directory sc8-pr-cvs3.sourceforge.net:/tmp/cvs-serv20304/src/net/sourceforge/bprocessor/gl/model

Added Files:
	GlCamera.java 
Log Message:
A 3d representation of cameras

--- NEW FILE: GlCamera.java ---
//---------------------------------------------------------------------------------
// $Id: GlCamera.java,v 1.1 2007/02/20 15:13:00 nordholt Exp $
//
// Copyright (c) 2005      The BProcessor Team (http://bprocessor.sourceforge.net) 
// Released under the Lesser GNU Public License v2.1
//---------------------------------------------------------------------------------
package net.sourceforge.bprocessor.gl.model;

import javax.media.opengl.GL;

import org.apache.log4j.Logger;

import com.sun.opengl.util.GLUT;

import net.sourceforge.bprocessor.model.Camera;
import net.sourceforge.bprocessor.model.Edge;
import net.sourceforge.bprocessor.model.Geometry;
import net.sourceforge.bprocessor.model.Plane;
import net.sourceforge.bprocessor.model.Vertex;

/** 
 *  Af 3d representation of a camera
 */
public class GlCamera implements GlObject {
  
  /** The logger */
  private static Logger log = Logger.getLogger(GlCamera.class);
  
  /** The camera to represent in 3d */
  private Camera cam;
  
  /** Constructor setting the camera
   * @param c the camera to present in 3d  
   */
  public GlCamera(Camera c) {
    cam = c;
  }

  /** 
   * {@inheritDoc}
   */
  public void draw(GL gl) {
    Vertex position = new Vertex(cam.getCamera());
    Vertex lookAt = position.minus(new Vertex(cam.getCenter()));
    lookAt.normalize();
    GLUT glut = new GLUT();
   
    //Drawing the camera box
    gl.glPushMatrix();
    gl.glEnable(GL.GL_LIGHTING);
    gl.glColor3d(0.1, 0.1, 0.1);
    gl.glTranslated(position.getX(), position.getY(), position.getZ());
    gl.glRotated(Math.toDegrees(Geometry.degreesAboutZ(lookAt)), 0.0, 0.0, 1.0);
    gl.glRotated(-Math.toDegrees(Geometry.degreesAboutY(lookAt)), 0.0, 1.0, 0.0);
    gl.glScaled(0.5, 0.25, 0.25);
    glut.glutSolidCube(2.0f);
    gl.glPopMatrix();
    
    //Drawing the camera lense (the cone)
    gl.glPushMatrix();
    gl.glTranslated(position.getX(), position.getY(), position.getZ());
    gl.glRotated(Math.toDegrees(Geometry.degreesAboutZ(lookAt)), 0.0, 0.0, 1.0);
    gl.glRotated(-Math.toDegrees(Geometry.degreesAboutY(lookAt)), 0.0, 1.0, 0.0);
    gl.glTranslated(-1.5 / 2, 0, 0);
    gl.glRotated(90, 0.0, 1.0, 0.0);
    glut.glutSolidCone(0.25, 1.5 / 2, 32, 32);
    gl.glPopMatrix();   
    gl.glDisable(GL.GL_LIGHTING);
  }

  /**
   * {@inheritDoc}
   */
  public Plane getPlane() {
    Vertex roll = new Vertex(cam.getRoll());
    Vertex position = new Vertex(cam.getCamera());
    Vertex lookAt = position.minus(new Vertex(cam.getCenter()));
    Vertex cross = lookAt.cross(roll);
    
    Plane p = new Plane(cross.getX(), cross.getY(), cross.getX(), 
                        position);    
    return p;
  }

  /**
   * {@inheritDoc}
   */
  public Vertex intersection(Edge e) {
    Plane p = getPlane();
    return p.intersection(e);
  }
  /**
   * get the ca model camera of this gl camera
   * @return the camera
   */
  public Camera getCamera() {
    return cam;
  }

}