com.threerings.opengl.util
Class Compass

java.lang.Object
  com.threerings.opengl.util.SimpleRenderable
      com.threerings.opengl.util.SimpleOverlay
          com.threerings.opengl.util.Compass

All Implemented Interfaces:

Compositable, Enqueueable

public class Compass
extends SimpleOverlay

A compass that displays the coordinate system axes.

Field Summary

protected Vector3f	_vector Temporary vector used to determine where the axes lie.
protected Text	_x The axis labels.
protected Text	_y The axis labels.
protected Text	_z The axis labels.

Fields inherited from class com.threerings.opengl.util.SimpleRenderable

_batch, _ctx, _priority, _queue

Constructor Summary

Compass(GlContext ctx)
Creates a new compass.

Method Summary

protected void	draw() Draws the geometry in immediate mode.
protected void	drawAxis(Renderer renderer, Text label, float x, float y) Draws one of the compass axes.

Methods inherited from class com.threerings.opengl.util.SimpleOverlay

composite, createStates

Methods inherited from class com.threerings.opengl.util.SimpleRenderable

createBatch, enqueue, getStates

Methods inherited from class java.lang.Object

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

Field Detail

_x

protected Text _x

The axis labels.

_y

protected Text _y

The axis labels.

_z

protected Text _z

The axis labels.

_vector

protected Vector3f _vector

Temporary vector used to determine where the axes lie.

Constructor Detail

Compass

public Compass(GlContext ctx)

Creates a new compass.

Method Detail

draw

protected void draw()

Description copied from class: SimpleRenderable

Draws the geometry in immediate mode.

Overrides:

draw in class SimpleRenderable

drawAxis

protected void drawAxis(Renderer renderer,
                        Text label,
                        float x,
                        float y)

Draws one of the compass axes.

Parameters:

x - the x component of the rotated axis.

y - the y component of the rotated axis.