Android Open Source - ScalAR Group

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License

The source code is released under:

GNU General Public License

Java Source Code

/**
  Copyright (C) 2010  Tobias Domhan/*from  ww w  .j a  v a 2s. co m*/

    This file is part of AndObjViewer.

    AndObjViewer is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    AndObjViewer 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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with AndObjViewer.  If not, see <http://www.gnu.org/licenses/>.
 
 */
package edu.dhbw.andobjviewer.models;

import java.io.Serializable;
import java.nio.ByteBuffer;
import java.nio.FloatBuffer;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.Vector;

import edu.dhbw.andobjviewer.util.MemUtil;

/**
 * a group of faces.
 * @author Tobi
 *
 */
public class Group implements Serializable {
  private String materialName = "default";
  private transient Material material;
  /**
   * is there a texture associated with this group?
   */
  private boolean textured = false;
  //access not via getters for performance reasons
  public transient FloatBuffer vertices = null;
  public transient FloatBuffer texcoords = null;
  public transient FloatBuffer normals = null;
  public int vertexCount = 0;
  
  public ArrayList<Float> groupVertices = new ArrayList<Float>(500);
  public ArrayList<Float> groupNormals = new ArrayList<Float>(500);
  public ArrayList<Float> groupTexcoords = new ArrayList<Float>();
  
  public Group() {
  }
  
  public void setMaterialName(String currMat) {
    this.materialName = currMat;
  }
  
  public String getMaterialName() {
    return materialName;
  }
  
  
  public Material getMaterial() {
    return material;
  }

  public void setMaterial(Material material) {
    if(texcoords != null && material != null && material.hasTexture()) {
      textured = true;
    }
    if(material != null)
      this.material = material;
  }

  public boolean containsVertices() {
    if(groupVertices != null)
      return groupVertices.size()>0;
    else if(vertices != null)
      return vertices.capacity()>0;
    else 
      return false;
  }
  
  public void setTextured(boolean b) {
    textured = b;
  }
  
  public boolean isTextured() {
    return textured;
  }
  
  /**
   *  convert all dynamic arrays to final non alterable ones.
   */
  public void finalize() {
    if (groupTexcoords.size() > 0) {
      textured = true;
      texcoords = MemUtil.makeFloatBuffer(groupTexcoords.size());
      for (Iterator<Float> iterator = groupTexcoords.iterator(); iterator.hasNext();) {
        Float curVal = iterator.next();
        texcoords.put(curVal.floatValue());        
      }
      texcoords.position(0);
      if(material != null && material.hasTexture()) {
        textured = true;
      } else {
        textured = false;
      }
    }
    groupTexcoords = null;
    //System.gc();
    vertices = MemUtil.makeFloatBuffer(groupVertices.size());
    vertexCount = groupVertices.size()/3;//three floats pers vertex
    for (Iterator<Float> iterator = groupVertices.iterator(); iterator.hasNext();) {
      Float curVal = iterator.next();
      vertices.put(curVal.floatValue());
    }
    //let the garbage collector free the memory
    groupVertices = null;
    //System.gc();
    normals = MemUtil.makeFloatBuffer(groupNormals.size());
    for (Iterator<Float> iterator = groupNormals.iterator(); iterator.hasNext();) {
      Float curVal =  iterator.next();
      normals.put(curVal.floatValue());
    }
    //let the garbage collector free the memory
    groupNormals = null;
    //System.gc();
    vertices.position(0);
    normals.position(0);    
  }
  
  /*
   * get  a google protocol buffers builder, that may be serialized
   */
  /*public BufferGroup getProtocolBuffer() {
    ModelProtocolBuffer.BufferGroup.Builder builder = ModelProtocolBuffer.BufferGroup.newBuilder();
    
    return builder.build();
  }*/
  
}

Java Source Code List

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