Dear List, I am trying to modify the loadkmlgeorss module, which uses the Marker class, to respond to click events to display a balloon popup.
If the Raphaeljs library is included this doesn't seem possible right now. The Problem as I understand it: Each marker instantiates it's own 'canvas' - in Raphael this means a new <svg> element is added to the DOM. So if multiple markers are present, multiple <svg> appear stacked above each other. The problem is, that events don't seem to come through the topmost svg element, meaning that only a click on the marker that was add last will bring the desired result. Possible solutions: - Create a global canvas element. If all elements are in a single canvas, event propagation works however because canvas.clear() is called a couple of times in the code, a global canvas doesn't work without changes. This could be modifyed to grouping elements using 'canvas.set()', and set.remove(). I am not 100% sure how feasable that is, though. - Create a common canvas element for the markers only drawback: the markers will work, but it can' t be used with any other modules that need a canvas ideas? Regards, Karim _______________________________________________ Mapbender_dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapbender_dev
