Hi,
> or if you can look at the code below, and tell me where did i go wrong...
> in this code, i tried to follow what is done in
> org.apache.batik.swing.gvt.AbstractZoomInteractor.mouseReleased
>
>
> double x1= my value
> double y1= my value
> double x2= my value
> double y2= my value
>
> double xCurrent = x2;
> double yCurrent = y2;
> double xStart = x1;
> double yStart = y1;
>
> if ((xCurrent - xStart) != 0 &&
> (yCurrent - yStart) != 0) {
>
> int dx = xCurrent - xStart;
> int dy = yCurrent - yStart;
>
> if (dx < 0) {
> dx = -dx;
> xStart = xCurrent;
> }
> if (dy < 0) {
> dy = -dy;
> yStart = yCurrent;
> }
>
> Dimension size = c.getSize();
>
> // Zoom factor
> float scaleX = size.width / (float)dx;
> float scaleY = size.height / (float)dy;
> float scale = (scaleX < scaleY) ? scaleX : scaleY;
>
> // Zoom translate
> AffineTransform at = new AffineTransform();
> at.scale(scale, scale);
> at.translate(-xStart, -yStart);
>
> at.concatenate(c.getRenderingTransform());
> c.setRenderingTransform(at);
Make sure the x2 and y2 is the exact coordinate not the width and height
value.
Regards
Tonny Kohar
--
Sketsa
SVG Graphics Editor
http://www.kiyut.com
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