89 lines
2.5 KiB
Java
89 lines
2.5 KiB
Java
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import java.awt.*;
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import java.awt.geom.*;
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public class AreaExamples extends Frame
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{
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AreaExamples()
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{
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addWindowListener(new MyFinishWindow());
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}
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public void paint(Graphics g)
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{
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Graphics2D g2d = (Graphics2D) g;
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int radius = 50;
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int startx = 100;
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int starty = 100;
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int rectshiftx = -10;
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int rectshifty = 10;
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int width = 70;
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int height = 100;
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int xshift = 250;
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int yshift = 250;
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//add
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Ellipse2D.Double circle1 = circleDouble(startx,starty,radius);
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Rectangle2D.Double rect1 = new Rectangle2D.Double(startx+rectshiftx,
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starty+rectshifty,
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width,
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height);
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Area c1 = new Area(circle1);
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Area r1 = new Area(rect1);
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c1.add(r1);
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g2d.setPaint(Color.green);
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g2d.fill(c1);
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//intersect
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Ellipse2D.Double circle2 = circleDouble(startx+xshift,starty,radius);
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Rectangle2D.Double rect2 = new Rectangle2D.Double(startx+rectshiftx+xshift,
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starty+rectshifty,
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width,
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height);
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Area c2 = new Area(circle2);
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Area r2 = new Area(rect2);
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c2.intersect(r2);
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g2d.setPaint(Color.red);
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g2d.fill(c2);
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//subtract
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Ellipse2D.Double circle3 = circleDouble(startx,starty+yshift,radius);
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Rectangle2D.Double rect3 = new Rectangle2D.Double(startx+rectshiftx,
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starty+rectshifty+yshift,
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width,
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height);
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Area c3 = new Area(circle3);
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Area r3 = new Area(rect3);
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c3.subtract(r3);
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g2d.setPaint(Color.blue);
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g2d.fill(c3);
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//XOR
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Ellipse2D.Double circle4 = circleDouble(startx+xshift,starty+yshift,radius);
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Rectangle2D.Double rect4 = new Rectangle2D.Double(startx+rectshiftx+xshift,
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starty+rectshifty+yshift,
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width,
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height);
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Area c4 = new Area(circle4);
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Area r4 = new Area(rect4);
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c4.exclusiveOr(r4);
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g2d.setPaint(Color.yellow);
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g2d.fill(c4);
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}
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public Ellipse2D.Double circleDouble(double x, double y, double radius)
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{
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return(new Ellipse2D.Double(x-radius,y-radius,2*radius,2*radius));
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}
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public static void main(String[] argv)
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{
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AreaExamples f = new AreaExamples();
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f.setTitle("Area example");
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f.setSize(600,600);
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f.setVisible(true);
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}
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}
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