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/*
* $RCSfile$
*
* Copyright (c) 2004 Sun Microsystems, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any
* kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
* EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
* NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
* USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
* DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
* ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
* CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
* REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
* INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed, licensed or
* intended for use in the design, construction, operation or
* maintenance of any nuclear facility.
*
* $Revision$
* $Date$
* $State$
*/
import javax.media.j3d.*;
import javax.vecmath.*;
public class Cylinder {
float verts[];
float normals[];
QuadArray quad = null;
float div = 3.0f;
Shape3D shape;
public Cylinder(float x, float z, float radius, float length, int quality, Appearance a) {
if (quality < 3) quality = 3;
div = (float) quality;
verts = new float[quality*12];
normals = new float[quality*12];
double inc = 2.0*Math.PI/(double)div;
for (int i=0; i< quality; i++){
float z1 = radius * (float)Math.sin((double)i*inc) + z;
float x1 = radius * (float)Math.cos((double)i*inc) + x;
float z2 = radius * (float)Math.sin((double)(i+1)*inc) + z;
float x2 = radius * (float)Math.cos((double)(i+1)*inc) + x;
verts[12*i] = x1;
verts[12*i+1] = -length/2.f;
verts[12*i+2] = z1;
verts[12*i+3] = x1;
verts[12*i+4] = length/2.f;
verts[12*i+5] = z1;
verts[12*i+6] = x2;
verts[12*i+7] = length/2.f;
verts[12*i+8] = z2;
verts[12*i+9] = x2;
verts[12*i+10] = -length/2.f;
verts[12*i+11] = z2;
float nz1 = (float)Math.sin((double)i*inc);
float nx1 = (float)Math.cos((double)i*inc);
float nz2 = (float)Math.sin((double)(i+1)*inc);
float nx2 = (float)Math.cos((double)(i+1)*inc);
normals[12*i] = nx1;
normals[12*i+1] = 0.0f;
normals[12*i+2] = nz1;
normals[12*i+3] = nx1;
normals[12*i+4] = 0.0f;
normals[12*i+5] = nz1;
normals[12*i+6] = nx2;
normals[12*i+7] = 0.0f;
normals[12*i+8] = nz2;
normals[12*i+9] = nx2;
normals[12*i+10] = 0.0f;
normals[12*i+11] = nz2;
}
quad = new QuadArray(quality*4, QuadArray.COORDINATES |
QuadArray.NORMALS );
quad.setCoordinates(0, verts);
quad.setNormals(0, normals);
shape = new Shape3D(quad, a);
}
Shape3D getShape(){
return shape;
}
}
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