~seh999/jcog/proto3

package opencog.spacetime.tutorial.geom;

 

import java.awt.Color;

import java.util.LinkedList;

import java.util.List;

 

import opencog.spacetime.geometry.GeometryMergeFactory;

import opencog.spacetime.geometry.Primitives;

import opencog.spacetime.math.MatrixBuilder;

import opencog.spacetime.plugin.JRViewer;

import opencog.spacetime.scene.Appearance;

import opencog.spacetime.scene.IndexedFaceSet;

import opencog.spacetime.scene.SceneGraphComponent;

import opencog.spacetime.scene.data.Attribute;

import opencog.spacetime.shader.CommonAttributes;

import opencog.spacetime.util.SceneGraphUtility;

 

 

/**

 * This example shows how to use the {@link GeometryMergeFactory}, which combines all geometries in a scene graph into

 * a single {@link IndexedFaceSet}.

 * 

 * @author Bernd Gonska

 *

 */

public class GeometryMergeExample {

 

        public static void main(String[] args) {

                // a little Scene (two boxes and a bangle, transfomation, appearance)

        IndexedFaceSet box= Primitives.box(2, .5, .5, false);

        IndexedFaceSet box2= Primitives.box(2, .6, 0.4, true);

        IndexedFaceSet zyl= Primitives.cylinder(20,1,0,.5,5);

        SceneGraphComponent original= new SceneGraphComponent();

        SceneGraphComponent childNode1= new SceneGraphComponent();

        MatrixBuilder.euclidean().translate(0,0,1).assignTo(childNode1);

        SceneGraphComponent childNode2= new SceneGraphComponent();

        Appearance app= new Appearance();

        app.setAttribute(CommonAttributes.POLYGON_SHADER+"."+CommonAttributes.DIFFUSE_COLOR, new Color(255,255,0));

        childNode2.setAppearance(app);

        original.addChild(childNode1);

        original.addChild(childNode2);

        original.setGeometry(box2);

        childNode1.setGeometry(box);

        childNode2.setGeometry(zyl);

// the Factory:

        GeometryMergeFactory mergeFact= new GeometryMergeFactory();             

// play with the following 3 optional settings (by default they are true)

        mergeFact.setRespectFaces(true);

        mergeFact.setRespectEdges(true);

        mergeFact.setGenerateVertexNormals(true);                       

// you can set some defaults:

        List defaultAtts= new LinkedList();

        List defaultAttValue= new LinkedList();

        List value= new LinkedList();

        defaultAtts.add(Attribute.COLORS);

        defaultAttValue.add(value);

        value.add(new double[]{0,1,0,1});// remember: only 4d colors

        mergeFact.setDefaultFaceAttributes(defaultAtts,defaultAttValue );

// merge a list of geometrys:

        //IndexedFaceSet[] list= new IndexedFaceSet[]{box2,zyl};

        //IndexedFaceSet result=mergeFact.mergeIndexedFaceSets(list);

// or  a complete tree:

        IndexedFaceSet result=mergeFact.mergeGeometrySets(original);

        SceneGraphComponent world = SceneGraphUtility.createFullSceneGraphComponent("world");

       SceneGraphComponent merged =  SceneGraphUtility.createFullSceneGraphComponent("merged");

       merged.setGeometry(result);

       MatrixBuilder.euclidean().translate(3,0,0).assignTo(merged);

       world.addChildren(merged, original);

        JRViewer.display(world);

        }

 

}