nodeHitAt()

[Daniel Meyer <da...@pt.lu>]

Hi,

I want to call
    canvas.getGraphicsNode().nodeHitAt(p);
which transformations have to be applied to p in order for nodeHitAt to 
work?


This is what I got so far:


Point p = [MouseEventInstance].getPoint();
AffineTransform af = canvas.getRenderingTransform().createInverse();
if (af != null)
     af.deltaTransform(p, p);
af = canvas.getGraphicsNode().getGlobalTransform().createInverse();
if (af != null)
     af.deltaTransform(p, p);
 
 // check for selection:
GraphicsNode newSelection = canvas.getGraphicsNode().nodeHitAt(p);


I know that I have to map p to the root graphicsnode's coordinate space,
but the way I do it, doesn't work.

Any suggestions greatly appreciated!!!

Yours,
Daniel

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Re: nodeHitAt()

[Daniel Meyer <da...@pt.lu>]

Problem solved ;)
[use transform() instead of deltaTransform() ]


Daniel Meyer wrote:
> Hi,
>
> I want to call
>    canvas.getGraphicsNode().nodeHitAt(p);
> which transformations have to be applied to p in order for nodeHitAt 
> to work?
>
>
> This is what I got so far:
>
>
> Point p = [MouseEventInstance].getPoint();
> AffineTransform af = canvas.getRenderingTransform().createInverse();
> if (af != null)
>     af.deltaTransform(p, p);
> af = canvas.getGraphicsNode().getGlobalTransform().createInverse();
> if (af != null)
>     af.deltaTransform(p, p);
>
> // check for selection:
> GraphicsNode newSelection = canvas.getGraphicsNode().nodeHitAt(p);
>
>
> I know that I have to map p to the root graphicsnode's coordinate space,
> but the way I do it, doesn't work.
>
> Any suggestions greatly appreciated!!!
>
> Yours,
> Daniel
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: batik-users-unsubscribe@xmlgraphics.apache.org
> For additional commands, e-mail: batik-users-help@xmlgraphics.apache.org
>
>


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