topic Re: How to trigger multiple GraphicsLayer OnClick() with overlapping images? in ArcGIS JavaScript Maps SDK Questions

How to trigger multiple GraphicsLayer OnClick() with overlapping images?

MarcusC — Tue, 07 Feb 2012 16:30:28 GMT

ESRI newbie here...

I have map images that overlap sometimes. These overlapping images could be on the same graphics layer and/or different graphic layers. On the click event, I only get the top image graphic. I need a list of all the graphics behind a click event, same graphic layer or not.

How do I do that?

Thanks,

Marcus

Re: How to trigger multiple GraphicsLayer OnClick() with overlapping images?

derekswingley1 — Tue, 07 Feb 2012 16:53:07 GMT

Here's the approach I would take: when your map is clicked, use the method outlined in a previous server blog post to filter graphics. That means building an extent around your click point and then checking if graphics intersect it. This is applicable to one or many graphics layers�?? it's up to you. For one graphics layer, one dojo.filter statement will get the job done. For more than one, you would use a dojo.filter for each graphics layer and then combine the results.

Re: How to trigger multiple GraphicsLayer OnClick() with overlapping images?

MarcusC — Tue, 07 Feb 2012 18:58:38 GMT

I'm on it. Thank you!