String, Thanks again for the analysis. I really appreciate the 2nd pair of eyes. I'll take a closer look at the script. Just wasn't sure if it was the tiles or not since it cut all the other levels correctly.
Adam On Dec 19, 5:20 pm, String <[email protected]> wrote: > Adam, > > You have fixed the projection, but you still have a problem with your > tiles, I'm afraid. Look at the "halfway" tile, whose lower right (SE) > corner is at the intersection of the equator and the prime meridian. > > For zoom 1, it's 1_0_0.png, which is correct. > For zoom 2, it's 2_1_1.png, which is correct. > For zoom 3, it's 3_3_3.png, which is correct. > For zoom 4, it's 4_7_7.png, which is correct. > For zoom 5, it's 5_15_15.png, which is correct. > For zoom 6, it's 6_32_32.png, which is incorrect. > > Notice the pattern there? It's broken at zoom level 6. Something is > wrong with your tile cutter code. > > If it were me, I'd dig into the tile cutter at this point and find the > bug. If you're up for that, great! If not, you'll have to contact the > author of the code and ask for help, or hope that someone else on this > forum has experience with that code and can offer some advice. I've > taken it as far as I can, I'm afraid. > > String > > On Dec 19, 11:04 pm, adameepoo <[email protected]> wrote: > > > Thanks for taking a look. I tried generating new tiles with a > > mercator projection and the map still does the same thing. The last > > zoom level (6) is offset about half a tile to the top left. > > > The source i used is > > here:http://upload.wikimedia.org/wikipedia/commons/f/f7/Normal_Mercator_ma... > > The map is at the same place:http://dev.hwangonline.com/ > > > Any ideas? > > > Thanks, > > Adam > > > On Dec 19, 3:16 am, String <[email protected]> wrote: > > > > Hi, > > > > It's the tiles. An easy way to see this is with the Web Developer > > > toolbar in FF; select Outline > Custom Elements and enter "img", which > > > will draw lines around all images on the page - including GMaps tiles. > > > > I would think that the root of your problem is that your source map > > > image is the wrong map projection - I can tell by looking at it that > > > it's equirectangular, while GMaps uses Mercator. The easiest place to > > > see this is in the shape of Greenland. In order to use this image with > > > the GMaps API, you'll need to reproject it, and that will require some > > > work. I do my reprojections manually in PHP; perhaps someone else on > > > the group can chime in if they know an easier, non-programming-based > > > approach. > > > > HTH, > > > > String > > > -- > > > Sterling Udell > > > Author, Beginning Google Maps > > > Mashupshttp://www.apress.com/book/view/9781430216209 > > > > On Dec 19, 6:08 am, adameepoo <[email protected]> wrote: > > > > > i have a custom map that can zoom from 2 - 6. the map works perfectly > > > > until you zoom from level 5 to level 6, the map shifts up about half a > > > > tile > > > > > im not sure if its the tiles, but they were cut with the mapki auto > > > > tile cutter photoshop script, which i've tried a few times now and > > > > always get the same results. > > > > > i've tried searching the web and this group, but honestly dont even > > > > know what to call this problem or how to even describe it really. if > > > > anybody has any thoughts or insight, it'd be greatly appreciated. > > > > > the map is at: http://dev.hwangonline.com/ > > > > > thanks --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Maps API" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/Google-Maps-API?hl=en -~----------~----~----~----~------~----~------~--~---
