package AngioTool;
import java.awt.Point;import java.awt.Polygon;import java.awt.Rectangle;
public class PolygonPlus { private final int N; private final Point[] points; private Polygon p;
public PolygonPlus(Point[] points) { this.N = points.length; this.points = new Point[this.N + 1];
for(int i = 0; i < this.N; ++i) { this.points[i] = points[i]; }
this.points[this.N] = points[0]; this.p = new Polygon();
for(int i = 0; i < this.points.length; ++i) { this.p.addPoint(this.points[i].x, this.points[i].y); } }
public PolygonPlus(Polygon p) { this.p = p; this.N = p.npoints; this.points = new Point[this.N + 1];
for(int i = 0; i < this.N; ++i) { this.points[i] = new Point(p.xpoints[i], p.ypoints[i]); }
this.points[this.N] = this.points[0]; }
public Polygon polygon() { return this.p; }
public double area() { return Math.abs(this.signedArea()); }
public double signedArea() { double sum = 0.0;
for(int i = 0; i < this.N; ++i) { sum = sum + (double)(this.points[i].x * this.points[i + 1].y) - (double)(this.points[i].y * this.points[i + 1].x); }
return 0.5 * sum; }
public boolean contains(int x, int y) { return this.p.contains(x, y); }
public boolean contains(Point p) { return this.p.contains(p); }
public boolean intersects(Rectangle r) { return this.p.intersects(r); }
public double perimeter() { double sum = 0.0;
for(int i = 0; i < this.N; ++i) { sum += this.points[i].distance(this.points[i + 1]); }
return sum; }
@Override public String toString() { String out = ""; int[] xpoints = this.p.xpoints; int[] ypoints = this.p.ypoints; int npoints = this.p.npoints;
for(int i = 0; i < npoints; ++i) { String concat = "[" + xpoints[i] + "," + ypoints[i] + "], "; out.concat(concat); }
return out; }}
