LineSegment.java

package com.bioxx.jmapgen.com.nodename.geom;

import com.bioxx.jmapgen.Point;

public final class LineSegment extends Object
{
	public static double compareLengths_MAX(LineSegment segment0, LineSegment segment1)
	{
		double length0 = Point.distance(segment0.p0, segment0.p1);
		double length1 = Point.distance(segment1.p0, segment1.p1);
		if (length0 < length1)
		{
			return 1;
		}
		if (length0 > length1)
		{
			return -1;
		}
		return 0;
	}

	public static double compareLengths(LineSegment edge0, LineSegment edge1)
	{
		return - compareLengths_MAX(edge0, edge1);
	}

	public Point p0;
	public Point p1;

	public LineSegment(Point p0, Point p1)
	{
		super();
		this.p0 = p0;
		this.p1 = p1;
	}

	public Point getPoint(double t)
	{
		//x=(1−t)a+tc 
		//y=(1−t)b+td
		double x = (1-t) * p0.x + (t * p1.x);
		double y = (1-t) * p0.y + (t * p1.y);
		return new Point(x, y);
	}
}