Need 3d text support similar to glutBitmapString

[jzy3d]

No description provided.

[jzy3d]

Available as of 2.5, based on AWT drawString method, which is applied on top of the image containing the complete OpenGL scene. This is hence not a real OpenGL implementation of text management, but it provides a simple an easy way to quickly draw text with a larger font support than the one provided by OpenGL1.

• fbcbd72
• 0f7a423

See these two new methods in GLUT

/**
   * Print string at the specified 2d position.
   * 
   * This method is not following exactly the GLUT interface. 
   * Printing text in OpenGL usually requires such code :
   * 
   * <pre><code>
   * gl.glColor3f(r, g, b);
   * gl.glRasterPos3f(x, y, z);
   * glut.glutBitmapString(font, string);
   * </code></pre>
   * 
   * In our case, one need to first perform model-to-screen projection to get
   * x,y coordinates, and then call glutBitmapString. 
   * 
   * @see {@link #glutBitmapString(Font, String, float, float, float, float, float, float) to avoid doing the model-to-screen projection.
   */
  public void glutBitmapString(Font font, String string, float x, float y) {
	  JavaGL.appendTextToDraw(font, string, (int)x, (int)y);
  }
  
  /**
   * Print string at the specified 3d position.
   * 
   * This method is not following exactly the GLUT interface. 
   * Printing text in OpenGL usually requires such code :
   * 
   * <pre><code>
   * gl.glColor3f(r, g, b);
   * gl.glRasterPos3f(x, y, z);
   * glut.glutBitmapString(int font, string);
   * </code></pre>
   * 
   * Here we provide a convenient function that does all in one pass
   * <pre><code>
   * glut.glutBitmapString(java.awt.Font, java.lang.String, x, y, z, r, g, b);
   * </code></pre>
   * 
   * Behind the scene it makes the model-to-screen conversion and then
   * provide all data to {@link GL#appendTextToDraw(Font, String, int, int, float, float, float)}
   * that will handle the text rendering in {@link GL#glFlush()}
   */
  public void glutBitmapString(Font font, String string, float x, float y, float z, float r, float g, float b) {
	  double[] win = modelToScreen(x, y, z);
	  
	  double winX = win[0];
	  double winY = JavaGL.Context.Viewport.Height - win[1];
	  
	  JavaGL.appendTextToDraw(font, string, (int)winX, (int)winY, r, g, b);
  }