Example usage for java.awt.geom Line2D.Double getY1

Introduction

In this page you can find the example usage for java.awt.geom Line2D.Double getY1.

Prototype

public abstract double getY1();

Source Link

Document

Returns the Y coordinate of the start point in double precision.

Usage

From source file:org.fhcrc.cpl.viewer.mrm.Utils.java

public static XYLineAnnotation line2Annotation(Line2D.Double l2dd, Stroke s, Paint p) {
    return new XYLineAnnotation(l2dd.getX1(), l2dd.getY1(), l2dd.getX2(), l2dd.getY2(), s, p);
}

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From source file:com.joliciel.jochre.graphics.RowOfShapesImpl.java

Point2D.Double getIntersectionPoint(Line2D.Double line1, Line2D.Double line2) {
    //if (! line1.intersectsLine(line2) ) return null;

    double px = line1.getX1(), py = line1.getY1(), rx = line1.getX2() - px, ry = line1.getY2() - py;
    double qx = line2.getX1(), qy = line2.getY1(), sx = line2.getX2() - qx, sy = line2.getY2() - qy;

    double det = sx * ry - sy * rx;
    if (det == 0) {
        return null;
    } else {//w  ww.j  av  a 2  s .  c  o  m
        double z = (sx * (qy - py) + sy * (px - qx)) / det;
        //if (z==0 ||  z==1) return null;  // intersection at end point!
        return new Point2D.Double((double) (px + z * rx), (double) (py + z * ry));
    }
}

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