Example usage for java.awt.geom AffineTransform getRotateInstance

Introduction

In this page you can find the example usage for java.awt.geom AffineTransform getRotateInstance.

Prototype

public static AffineTransform getRotateInstance(double vecx, double vecy) 

Source Link

Document

Returns a transform that rotates coordinates according to a rotation vector.

Usage

From source file:Main.java

public void paint(Graphics g) {
    Shape shape = new Rectangle2D.Float(100, 50, 80, 80);

    Graphics2D g2 = (Graphics2D) g;

    AffineTransform at = AffineTransform.getRotateInstance(-Math.PI / 6, -Math.PI / 6);

    g2.setTransform(at);//from w w w  .  j  ava  2  s .  c o  m
    g2.draw(shape);

}

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From source file:org.rhwlab.dispim.nucleus.NucleusData.java

public Shape getShape(long slice, int dim, int bufW, int bufH) {

    //System.out.printf("Ellipsoid center = (%d,%d,%d)\n",this.xC,this.yC,this.zC);
    Ellipse2d e;//ww  w .j a va 2s  .com
    switch (dim) {
    case 0:
        e = xPlaneEllipse((double) slice);
        break;
    case 1:
        e = yPlaneEllipse((double) slice);
        break;
    default:
        e = zPlaneEllipse((double) slice);
        break;
    }
    if (e != null) {
        //System.out.printf("%s dim=%d  slice=%d\n",this.getName(),dim,slice);
        AffineTransform toOrigin = AffineTransform.getTranslateInstance(-e.x, -e.y);
        AffineTransform back = AffineTransform.getTranslateInstance(e.x, e.y);
        AffineTransform xform = AffineTransform.getRotateInstance(e.cosine, e.sine);
        int scrX = SingleSlicePanel.screenX(e.low, dim, bufW);
        int scrY = SingleSlicePanel.screenY(e.low, dim, bufH);
        int scrHighX = SingleSlicePanel.screenX(e.high, dim, bufW);
        int scrHighY = SingleSlicePanel.screenY(e.high, dim, bufH);
        Shape shape = new Ellipse2D.Double(scrX, scrY, scrHighX - scrX, scrHighY - scrY);
        shape = toOrigin.createTransformedShape(shape);
        shape = xform.createTransformedShape(shape);
        shape = back.createTransformedShape(shape);
        //System.out.printf("e.a:%f e.b:%f e.x:%f e.y:%f\n",e.a,e.b,e.x,e.y);
        return shape;
    }
    return null;
}

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