// This gets called by the constructor, hopefully only
// once but it can be called at any time. Called prior to any
// Window creation so it can only set variables, not draw things
public void init() {
/* initialize the widget */
int width = gl.getWidth();
int height = gl.getHeight();
// Initialize the rendering viewport size to OpenGL
gl.viewport(0, 0, width, height);
gl.matrixMode(GL.PROJECTION); // Set up the camera mode
gl.loadIdentity(); // Reset the transformation matrix
if (width <= height)
gl.ortho(
-50.0,
50.0,
-50.0 * (double) height / (double) width,
50.0 * (double) height / (double) width,
-1.0,
1.0);
else
gl.ortho(
-50.0 * (double) width / (double) height,
50.0 * (double) width / (double) height,
-50.0,
50.0,
-1.0,
1.0);
gl.matrixMode(GL.MODELVIEW); // Reset to model transforms
}
