Polyhedron.java

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package eu.mihosoft.vrl.v3d;
 
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.function.Function;
import java.util.stream.Collectors;
 
// TODO: Auto-generated Javadoc
public class Polyhedron extends Primitive {
 
    private final PropertyStorage properties = new PropertyStorage();
 
    private final List<Vector3d> points = new ArrayList<>();
    
    private final List<List<Integer>> faces = new ArrayList<>();
 
    public Polyhedron(List<Vector3d> points, List<List<Integer>> faces) {
        this.points.addAll(points);
        this.faces.addAll(faces);
    }
 
    public Polyhedron(Vector3d[] points, Integer[][] faces) {
        this.points.addAll(Arrays.asList(points));
 
        for (Integer[] list : faces) {
            this.faces.add(Arrays.asList(list));
        }
 
    }
 
    /* (non-Javadoc)
     * @see eu.mihosoft.vrl.v3d.Primitive#toPolygons()
     */
    @Override
    public List<Polygon> toPolygons() {
 
        Function<Integer, Vector3d> indexToPoint = (Integer i) -> {
            return points.get(i).clone();
        };
 
        Function<List<Integer>, Polygon> faceListToPolygon
                = (List<Integer> faceList) -> {
                    return Polygon.fromPoints(faceList.stream().map(indexToPoint).
                            collect(Collectors.toList()), properties);
                };
 
        return faces.stream().map(faceListToPolygon).
                collect(Collectors.toList());
    }
 
    /* (non-Javadoc)
     * @see eu.mihosoft.vrl.v3d.Primitive#getProperties()
     */
    @Override
    public PropertyStorage getProperties() {
        return properties;
    }
 
}