wireframe.java

j3me java

/*
 * J3DME Fast 3D software rendering for small devices
 * Copyright (C) 2001 Onno Hommes
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package net.jscience.j3dme;

/**
 * This class implements the explicit geometry Wireframe.
 * The Wireframe geometry allows a model to be rendered as a wireframe.
 * This class adds the necessary wire definitions to the Geometry class
 * to allow the Renderer to draw the correct projection onto the viewport.
 * Since it only contains the wire definitions the drawn model will be
 * transparent (i.e. all wires will be visible at all times regardless
 * of the model orientation). The wire definition is implemented using
 * an array of int's containing an index into the coordinate stream.
 * The int's always come in pairs. The first of the pair represents the
 * index for the start coordinate and the second index represents the end
 * of the wire. Both the start and end index point to just the x component
 * of the coordinate.
 * @see Model
 * @see ViewPort
 */
public class Wireframe extends Geometry
{

  protected int[] wires_from;
  protected int[] wires_to;

  /**
   * Return a Wireframe geometry<p>
   * This constructor uses the supplied coordinate stream and wirestream
   * (both arrays of int's) to build a Wireframe geometry. In addition
   * to assigning the stream data it determines the bounding radius.
   *
   * @param     c The array of int's representing the coordinate stream
   * @param     w The array of int's representing the wire stream indices
   */
  public Wireframe(int[] x,int[] y,int[] z, int[] wf, int[] wt){
     this.x = x;
     this.y = y;
     this.z = z;
     wires_from = wf;
     wires_to = wt;
     bounding_radius = this.setBoundingRadius();
  }
}