Arrow Shape, and other Shapes

Question

I am searching for Shapes, Shapes that I can use in my graphiing tool. My Program has Nodes connected to each other with simple lines.
Currently I use circles, ovals, eclipses, and general Shapes from the java.awt.geom. package. I am searching for more shapes that can really help my presentation.
does someone know where to find an Arrow Shape class that I can use in my drawing?
java.awt.Shape is an interface, I beleive you can extend it and create many possible shapes with it. I need these classes!
thank you very much.

Answer 1

Here's a method you can use to make symmetrical polygons.
You can use random values in the expression for R which determines the size and for
the center point coordinates (cx, cy).
    private int[][] generateShapeArrays(int cx, int cy, int R, int sides) {
        int radInc = 0;
        if(sides % 2 == 0)
            radInc = 1;
        int[] x = new int[sides];
        int[] y = new int[sides];
        for(int i = 0; i < sides; i++) {
            x[i] = cx + (int)(R * Math.sin(radInc*Math.PI/sides));
            y[i] = cy - (int)(R * Math.cos(radInc*Math.PI/sides));
            radInc += 2;
        // keep base of triangle level
        if(sides == 3)
            y[2] = y[1];
        return new int[][] { x, y };
    }One way to use this method:
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        Graphics2D g2 = (Graphics2D)g;
        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                            RenderingHints.VALUE_ANTIALIAS_ON);
        int w = getWidth();
        int h = getHeight();
        int R = Math.min(w,h)/8;
        int[][] xy = generateShapeArrays(w/4, h/4, R, 6);
        Polygon p = new Polygon(xy[0], xy[1], 6);
        g2.draw(p);
    }