Android Open Source - splott Surface

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Back to project page splott.

License

The source code is released under:

MIT License

If you think the Android project splott listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

package com.wordsaretoys.splott.plotter;
//from w w  w. j av a 2  s  .  com
import com.wordsaretoys.rise.geometry.Camera;
import com.wordsaretoys.rise.geometry.Vector;
import com.wordsaretoys.rise.glwrapper.Mesh;
import com.wordsaretoys.rise.glwrapper.Shader;
import com.wordsaretoys.rise.meshutil.IndexBuffer;
import com.wordsaretoys.rise.meshutil.SurfaceMapper;
import com.wordsaretoys.rise.meshutil.VertexBuffer;
import com.wordsaretoys.rise.utility.Asset;
import com.wordsaretoys.splott.parser.Vm;

public class Surface {

  VertexBuffer vertex;
  IndexBuffer index;
  Mesh mesh;
  Shader shader;
  Vm vm;
  GlView parent;

  /**
   * ctor; creates GL objects
   * must be called in GL context
   */
  public Surface(GlView parent) {
    
    this.parent = parent;
    
    shader = new Shader();
    shader.build(
          Asset.getTextAsset(parent.getContext(), "surfaceVert.glsl"),
          Asset.getTextAsset(parent.getContext(), "surfaceFrag.glsl")
        );

    int[] attr = {
      shader.getAttributeId("position"), 3
    };
    mesh = new Mesh(attr);
      
    vertex = new VertexBuffer();
    index = new IndexBuffer();
  }

  /**
   * generate the mesh
   */
  public void create(Vm vm) {
    this.vm = vm;
    
    vertex.reset();
    index.reset();
    
    new Thread() {
      @Override public void run() {
        
        new Mapper().generate(-5, -5, -5, 5, 5, 5, 0.25f, 0);
        parent.queueEvent(new Runnable() {
          @Override public void run() {
            mesh.build(vertex);
          }
        });
        
      }
    }.start();

    
  }

  /**
   * draw the mesh
   */
  public void draw(Camera camera) {
    shader.activate();
    shader.setMatrix("modelview", camera.rotations);
    shader.setMatrix("projector", camera.projector);
    mesh.draw();
  }

  /**
   * marching cubes class
   */
  class Mapper extends SurfaceMapper {

    @Override
    public float field(float x, float y, float z) {
      return (float) vm.get(x, y, z, 0);
    }

    @Override
    public void build(Vector v0, Vector v1, Vector v2, Vector n) {
      vertex.set(v0.x, v0.y, v0.z);
      vertex.set(v1.x, v1.y, v1.z);
      vertex.set(v2.x, v2.y, v2.z);
    }
    
  }
  
}

Java Source Code List