I'm writing visualization using canvas and would like to align my canvas objects with map tiles. Right now I'm using GTileLayer and toDataUrl to generate data: URLs and everything works fine. Unfortunately, one of my target platforms doesn't support toDataUrl, so I need to find some other mechanism.
I'm considering generating one canvas per tile and the problem is with aligning my elements with the tiles; every generated image has this style: <img style="border: 0px none ; margin: 0px; padding: 0px; position: absolute; left: 315px; top: -149px; width: 256px; height: 256px; -moz- user-select: none; opacity: 0.5;" I'm after these "left: 315px; top: -149px;" coordinates to position my object in exactly the same way as this particular tile. Is there a way to find the image for a tile (its DOM object) based on having tile.x, tile.y and zoom information without doing brute force scanning of "map" element children searching for images with the right src value? Also these coordinates seem to change when the map is moved (not with every move, but when new tiles are loaded). I can probably have DOMListener to handle that, but the same question remains: how do I find what new coordinates are assigned to the tile that my particular div/canvas is covering? Is there a better way to align my elements with tiles? I wish there was a getTileDiv as there is getTileURL. Paul. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Maps API" group. To post to this group, send email to Google-Maps-API@googlegroups.com To unsubscribe from this group, send email to google-maps-api+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Google-Maps-API?hl=en -~----------~----~----~----~------~----~------~--~---
