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Re: SVG elementīs event transparency

From: Doug Schepers <doug@schepers.cc>
Date: Fri, 1 Aug 2003 17:32:32 -0700
Message-ID: <003d01c3588d$909f0700$220f1918@Raven>
To: <www-svg@w3.org>

Hi, Michael-

You may want to try "style='pointer-events:none;' ". The disadvantage to
this would be that it turns off all pointer events, including mouseover,
etc., over the entire area, not just the regions that have shapes under
them. There are more complex approaches that involve finding the bounding
box of all the elements and doing coordinate-based hit-testing on them, but
this is the simplest approach, if you don't mind the side effects. Another
trick would be to move this polygon to the back on mousedown, capture the
mouseup event on the newly exposed "underneath" shape, and then move the
polygon back to the top after the mouseup.

BTW, this list, www-svg, is really more of a W3C forum to discuss issues
with the SVG Spec. For questions about development details and such, you'd
be better off  posting to the very active, friendly, and helpful list called

No harm done, of course, but you'll get much more response there.

Hope that helps-

----- Original Message ----- 
From: <michael@dsc.ufcg.edu.br>
To: <www-svg@w3.org>
Sent: Friday, August 01, 2003 10:15 AM
Subject: SVG elementīs event transparency

> Hello people,
> I have the folowing problem: I want create a polygon (path element) over
> some region of SVG wich one have already SVG elements, but I want that
> mouse events go beyond the object at upper layer and be dispatched to the
> object just below the upper element. Have you ever had this situation? How
> did you solved it?
> thanks in advance,
> Michael
Received on Friday, 1 August 2003 17:32:51 UTC

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