hi!
i'm stuck trying to zoom via JS with the center staying the same.
here's my current approach that works sometimes (i couldn't make out
the system behind it):
function zoom(offset) {
if (offset < 0)
offset = -1/offset;
svgdoc.currentScale *= offset;
svgdoc.currentTranslate.x = svgdoc.currentTranslate.x*offset + (1 -
offset)*getInnerWidth/2;
svgdoc.currentTranslate.y = svgdoc.currentTranslate.y*offset + (1 -
offset)*getInnerHeight/2;
}
where offset is 1.5 for +50% and -1.5 for -50%.
sometimes it will mess up the center point.
any help would be greatly appreciated!
regards,
karim
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