VisClient/org/hfbk/vis/visnode/VisFunction.java

Go to the documentation of this file.

package org.hfbk.vis.visnode;

import org.dronus.graph.Node;
import org.hfbk.util.Scripter;
import org.hfbk.util.Scripter.ScriptFunction;
import org.lwjgl.util.vector.Vector3f;


public class VisFunction extends VisHeightfield {

        String f;

        Scripter scripter=new Scripter();
        
        public VisFunction(Node node, Vector3f position) {
                super(node, position);

                f = node.text;
                scripter.evaluate("function f(x, y, t){with(Math){return " + f + ";}};");
        }

        @Override
        float[][] heightMap(float t) {
                int w=50,h=50;
                
                ScriptFunction f = scripter.getFunction("f");
                
                float[][] z = new float[w][h];
                
                for (int x = 0; x < w; x++) {
                        for (int y = 0; y < h; y++) {
                                Object value = f.call(2*x/(float)w-1 ,  2*y/(float)h-1, t);
                                z[x][y] = ((Double) value).floatValue();
                        }
                }
                return z;
        }
}

---