Android Open Source - Look Point Primitive

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License

The source code is released under:

====================== LOOK! LICENSING TERMS ====================== look! is licensed under the BSD 3-Clause (also known as "BSD New" or "BSD Simplified"), as follows: Copyright (c) 2010-2012, Look...

Java Source Code

/**
*-----------------------------------------------------------------------------
* Copyright (c) 2012, Look! Development Team
* All rights reserved./*ww  w  .ja  va2  s . c  om*/
*
* Distributed under the terms of the BSD Simplified License.
*
* The full license is in the LICENSE file, distributed with this software.
*-----------------------------------------------------------------------------
*/
package es.ucm.look.ar.ar3D.core.drawables.primitives;

import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;

import javax.microedition.khronos.opengles.GL10;

import es.ucm.look.ar.ar3D.core.drawables.Mesh3D;
import es.ucm.look.ar.math.geom.Point3;


public class PointPrimitive extends Mesh3D {

  private Point3 point;
  private FloatBuffer vertexBuffer;

  public PointPrimitive(Point3 p) {
    point = new Point3( 0.0f, 0.0f, 0.0f );
    initPoint(p);
  }

  public void setPoint(Point3 p) {
    initPoint(p);
  }

  private void initPoint(Point3 p) {
    this.point.x = p.x;
    this.point.y = p.y;
    this.point.z = p.z;
    float vertices[] = point.getCoordinatesArray();

    ByteBuffer byteBuf = ByteBuffer.allocateDirect(vertices.length * 4);
    byteBuf.order(ByteOrder.nativeOrder());
    vertexBuffer = byteBuf.asFloatBuffer();
    vertexBuffer.put(vertices);
    vertexBuffer.position(0);
  }

  @Override
  public void draw(GL10 gl) {
    gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
    gl.glVertexPointer(3, GL10.GL_FLOAT, 0, vertexBuffer);
    
    gl.glPointSize(5.0f);
    gl.glColor4f(1.0f, 0.0f, 1.0f, 1.0f);
    gl.glDrawArrays(GL10.GL_POINTS, 0, 1);

    gl.glDisableClientState(GL10.GL_VERTEX_ARRAY);
  }

  @Override
  public void update(long elapsed) {
    // TODO Auto-generated method stub

  }

}

Java Source Code List

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