Example usage for java.awt.geom Path2D curveTo

Introduction

In this page you can find the example usage for java.awt.geom Path2D curveTo.

Prototype

public abstract void curveTo(double x1, double y1, double x2, double y2, double x3, double y3);

Source Link

Document

Adds a curved segment, defined by three new points, to the path by drawing a Bézier curve that intersects both the current coordinates and the specified coordinates (x3,y3) , using the specified points (x1,y1) and (x2,y2) as Bézier control points.

Usage

From source file:org.jfree.graphics2d.demo.ImageTest.java

private static void drawArcTest(Graphics2D g2) {
    g2.setPaint(Color.GREEN);// w  w  w .  j a  v  a 2  s  .c o m
    g2.drawRect(0, 20, 70, 50);
    g2.setPaint(Color.RED);
    Path2D path1 = new Path2D.Double();
    double[] pts = calculateReferenceArc(90);
    path1.moveTo(pts[0], pts[1]);
    path1.curveTo(pts[2], pts[3], pts[4], pts[5], pts[6], pts[7]);
    AffineTransform t = new AffineTransform();
    t.translate(35, 45);
    t.scale(35, 25);
    t.rotate(Math.PI / 4);
    path1.transform(t);
    g2.draw(path1);

    Path2D path2 = new Path2D.Double();
    path2.moveTo(pts[0], pts[1]);
    path2.curveTo(pts[2], pts[3], pts[4], pts[5], pts[6], pts[7]);
    AffineTransform t2 = new AffineTransform();
    t2.rotate(3 * Math.PI / 4);
    t2.scale(35, 25);
    t2.translate(35, 35);
    path2.transform(t2);
    //g2.draw(path2);
    Path2D arc = new Path2D.Double();
    arc.append(path1, false);
    arc.append(path2, false);
    //g2.draw(arc);
    //g2.draw(path1);
    //g2.transform(t);
    g2.setPaint(Color.BLUE);
    g2.drawArc(0, 20, 70, 50, 0, -270);
    //Arc2D arc2d = new Arc2D.Double(0d, 20d, 70d, 50d, 0d, 90, Arc2D.OPEN);
    //g2.draw(arc2d);
}

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