Example usage for java.awt.geom AffineTransform transform

Introduction

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

Prototype

public Point2D transform(Point2D ptSrc, Point2D ptDst)

Source Link

Document

Transforms the specified ptSrc and stores the result in ptDst .

Usage

From source file:org.uva.itast.blended.omr.pages.PageImage.java

/**
 * Use alignment information to transform from milimeters to pixel coordinates at the preferred resolution for this page
 * @param x/*from  w w  w.  j  a v  a 2  s.com*/
 * @return
 */
public Point toPixels(double x, double y) {
    AffineTransform alignment = getAllignmentInfo();
    Point2D coord = new Point2D.Double(x, y);
    Point coordTransformed = new Point();
    alignment.transform(coord, coordTransformed);

    return coordTransformed;
}

From source file:org.uva.itast.blended.omr.pages.PageImage.java

public Point toPixelsPoint(double x, double y) {
    AffineTransform alignment = getAllignmentInfo();
    alignment.setToScale(getPreferredHorizontalResolution(), getPreferredVerticalResolution());

    Point2D coord = new Point2D.Double(x, y);
    Point coordTransformed = new Point();
    alignment.transform(coord, coordTransformed);

    return coordTransformed;
}

From source file:org.uva.itast.blended.omr.pages.PageImage.java

/**
 * Convert from  pixel-space to paper-space.
 * Paper-space refers to logical area of the paper in the image.
 * Pixel-space refers to entire area of the image that contains the image of the paper. (Maybe with offset and rotation)
 * @param i/*www.ja v a2  s.  co  m*/
 * @param j
 * @return
 * @throws NoninvertibleTransformException 
 */
public Point2D toMilimeters(int i, int j) {

    try {
        AffineTransform tr = getAllignmentInfo();
        AffineTransform inv;
        inv = tr.createInverse();
        Point2D pixeles = new Point(i, j);
        Point2D dest = new Point2D.Double();
        return inv.transform(pixeles, dest);
    } catch (NoninvertibleTransformException e) {
        throw new RuntimeException("error page definition.", e);
    }

}

From source file:pl.edu.icm.visnow.lib.utils.ImageUtilities.java

private static AffineTransform findTranslation(AffineTransform at, BufferedImage bi) {
    Point2D p2din, p2dout;// ww w  . j a  va2s .  c  om

    p2din = new Point2D.Double(0.0, 0.0);
    p2dout = at.transform(p2din, null);
    double ytrans = p2dout.getY();

    p2din = new Point2D.Double(0, bi.getHeight());
    p2dout = at.transform(p2din, null);
    double xtrans = p2dout.getX();

    AffineTransform tat = new AffineTransform();
    tat.translate(-xtrans, -ytrans);
    return tat;
}

From source file:tufts.vue.LWComponent.java

/** @return our shape, full transformed into map coords and ultimate scale when drawn at 100% map zoom
 * this is used for portal clipping, and will be imperfect for some scaled shapes, such as RountRect's
 * This only works for raw shapes that are RectangularShapes -- other Shape types just return the bounding
 * box in map coordinates (e.g., a link shape)
 *///from ww w . j a  va 2s .c o  m
public RectangularShape getMapShape() {
    // Will not work for shapes like RoundRect when scaled -- e..g, corner scaling will be off

    final Shape s = getZeroShape();
    //        if (getMapScale() != 1f && s instanceof RectangularShape) { // todo: do if any transform, not just scale
    if (s instanceof RectangularShape) {
        // todo: cache this: only need to updaate if location, size or scale changes
        // (Also, on the scale or location change of any parent!)
        RectangularShape rshape = (RectangularShape) s;
        rshape = (RectangularShape) rshape.clone();
        AffineTransform a = getZeroTransform();
        Point2D.Float loc = new Point2D.Float();
        a.transform(loc, loc);
        rshape.setFrame(loc.x, loc.y, rshape.getWidth() * a.getScaleX(), rshape.getHeight() * a.getScaleY());
        //System.out.println("TRANSFORMED SHAPE: " + rshape + " for " + this);
        return rshape;
    } else {
        return getMapBounds();
    }
}