Example usage for java.awt.geom Arc2D setFrameFromDiagonal

Introduction

In this page you can find the example usage for java.awt.geom Arc2D setFrameFromDiagonal.

Prototype

public void setFrameFromDiagonal(Point2D p1, Point2D p2) 

Source Link

Document

Sets the diagonal of the framing rectangle of this Shape based on two specified Point2D objects.

Usage

From source file:ShapeTest.java

public Shape makeShape(Point2D[] p) {
    double centerX = (p[0].getX() + p[1].getX()) / 2;
    double centerY = (p[0].getY() + p[1].getY()) / 2;
    double width = Math.abs(p[1].getX() - p[0].getX());
    double height = Math.abs(p[1].getY() - p[0].getY());

    double skewedStartAngle = Math
            .toDegrees(Math.atan2(-(p[2].getY() - centerY) * width, (p[2].getX() - centerX) * height));
    double skewedEndAngle = Math
            .toDegrees(Math.atan2(-(p[3].getY() - centerY) * width, (p[3].getX() - centerX) * height));
    double skewedAngleDifference = skewedEndAngle - skewedStartAngle;
    if (skewedStartAngle < 0)
        skewedStartAngle += 360;//w w w.  j  a  v  a2 s.c  om
    if (skewedAngleDifference < 0)
        skewedAngleDifference += 360;

    Arc2D s = new Arc2D.Double(0, 0, 0, 0, skewedStartAngle, skewedAngleDifference, Arc2D.OPEN);
    s.setFrameFromDiagonal(p[0], p[1]);

    GeneralPath g = new GeneralPath();
    g.append(s, false);
    Rectangle2D r = new Rectangle2D.Double();
    r.setFrameFromDiagonal(p[0], p[1]);
    g.append(r, false);
    Point2D center = new Point2D.Double(centerX, centerY);
    g.append(new Line2D.Double(center, p[2]), false);
    g.append(new Line2D.Double(center, p[3]), false);
    return g;
}

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