Hi ShyDisturbedBoy,
shydisturbedboy <[EMAIL PROTECTED]> wrote on 05/17/2007 01:25:49
AM:
>
> 1. how do i convert the coordinates of a rotated rect? when i drag the
> rotated rect, it does not follow the mouse.. what should i do?
shydisturbedboy <[EMAIL PROTECTED]> wrote on 05/17/2007 09:06:22
AM:
> private class OnMoveAction implements EventListener {
> public void handleEvent(Event evt) {
> Element ee = null;
> DOMMouseEvent elEvt = (DOMMouseEvent)evt;
[...]
> SVGPoint pt = convertPt((Element)ee.getParentNode(),
> elEvt.getClientX(),
elEvt.getClientY());
> moveElement(ee, pt.getX(), pt.getY());
By passing ee.getParentNode() you will be 'bypassing' the transform on
'ee'. So if the rectangle is rotated by setting it's transform attribute
(as opposed to a parent's transform attribute) then your mapping of
ClientX/Y will be to the wrong coordinate system. The 'x'/'cx' & 'y'/'cy'
attributes are in the local coordinate system of the element (after it's
transform has been applied).
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