org.lwjgl.util.glu

Class Disk

java.lang.Object

org.lwjgl.util.glu.Quadric

org.lwjgl.util.glu.Disk

public class Disk
extends Quadric

Disk.java Created 23-dec-2003

Author:

Erik Duijs

Field Summary

Fields inherited from class org.lwjgl.util.glu.Quadric

drawStyle, normals, orientation, textureFlag

Constructor Summary

Constructors

Constructor and Description
Disk() Constructor for Disk.

Method Summary

Methods

Modifier and Type	Method and Description
void	draw(float innerRadius, float outerRadius, int slices, int loops) renders a disk on the z = 0 plane.

Methods inherited from class org.lwjgl.util.glu.Quadric

cos, getDrawStyle, getNormals, getOrientation, getTextureFlag, normal3f, setDrawStyle, setNormals, setOrientation, setTextureFlag, sin, TXTR_COORD

Methods inherited from class java.lang.Object

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

Constructor Detail

Disk

public Disk()

Constructor for Disk.

Method Detail

draw

public void draw(float innerRadius,
        float outerRadius,
        int slices,
        int loops)

renders a disk on the z = 0 plane. The disk has a radius of outerRadius, and contains a concentric circular hole with a radius of innerRadius. If innerRadius is 0, then no hole is generated. The disk is subdivided around the z axis into slices (like pizza slices), and also about the z axis into rings (as specified by slices and loops, respectively). With respect to orientation, the +z side of the disk is considered to be "outside" (see glu.quadricOrientation). This means that if the orientation is set to GLU.OUTSIDE, then any normals generated point along the +z axis. Otherwise, they point along the -z axis. If texturing is turned on (with glu.quadricTexture), texture coordinates are generated linearly such that where r=outerRadius, the value at (r, 0, 0) is (1, 0.5), at (0, r, 0) it is (0.5, 1), at (-r, 0, 0) it is (0, 0.5), and at (0, -r, 0) it is (0.5, 0).