package edu.berkeley.qfat.geom;
import javax.media.opengl.*;
+import javax.media.opengl.glu.*;
/** point in 3-space; immutable */
-public final class Point implements HasBoundingBox {
+public final class Point extends HasPoint implements HasBoundingBox, AffineConstraint {
+
+ public static final Point ZERO = new Point(0,0,0);
+
public final float x, y, z;
+
public Point(double x, double y, double z) { this((float)x, (float)y, (float)z); }
public Point(float x, float y, float z) { this.x = x; this.y = y; this.z = z; }
- public float distance(Point p) { return distance(p.x, p.y, p.z); }
- public float distance(float ox, float oy, float oz) { return (float)Math.sqrt((x-ox)*(x-ox)+(y-oy)*(y-oy)+(z-oz)*(z-oz)); }
- public Point times(Matrix m) { return m.times(this); }
+
+ public float distance(Point p) { return (float)Math.sqrt((x-p.x)*(x-p.x)+(y-p.y)*(y-p.y)+(z-p.z)*(z-p.z)); }
+
public Vec minus(Point p) { return new Vec(x-p.x, y-p.y, z-p.z); }
public Point plus(Vec v) { return new Point(x+v.x, y+v.y, z+v.z); }
- public boolean equals(Object o) { return o!=null && (o instanceof Point) && ((Point)o).x==x && ((Point)o).y==y && ((Point)o).z==z; }
- public void glVertex(GL gl) { _glVertex(gl); }
- private void _glVertex(GL gl) { gl.glVertex3f(x, y, z); }
+ public Point midpoint(Point p) { return new Point((x+p.x)/2, (y+p.y)/2, (z+p.z)/2); }
+
+ public void glVertex(GL gl) { gl.glVertex3f(x, y, z); }
+
public String toString() { return "("+x+","+y+","+z+")"; }
+
+ public boolean equals(Object o) { return o!=null && (o instanceof Point) && ((Point)o).x==x && ((Point)o).y==y && ((Point)o).z==z; }
public int hashCode() { return Float.floatToIntBits(x) ^ Float.floatToIntBits(y) ^ Float.floatToIntBits(z); }
+ public Point getPoint() { return this; }
+
public float getMaxX() { return x; }
public float getMinX() { return x; }
public float getMaxY() { return y; }
public float getMinY() { return y; }
public float getMaxZ() { return z; }
public float getMinZ() { return z; }
+
+ public Point getProjection(Point p) { return this; }
+ public AffineConstraint intersect(AffineConstraint c, float epsilon) {
+ if (c.getProjection(this).distance(this) <= epsilon) return this;
+ return null;
+ }
}
+