You might take a look at Maptiler.org or maptiler.com On Wed, Mar 17, 2010 at 10:50 PM, Ahmet <[email protected]> wrote:
> Ok, I get it thanks. > So .. no freebees here. I was hoping that google would do the cutting for > me :) > Given the image corner coordinates and corresponding pixel x,y values, the > solution is unique. > I could do it easily in C++, but I need to use php since part of my product > will be to have user-supplied and calibrated charts. > Zoomify is using a similar approach for image rendering. > http://www.boatjuggler.com/Zoom/test.htm > > Ahmet > > On Wed, Mar 17, 2010 at 8:57 PM, Chad Killingsworth < > [email protected]> wrote: > >> Tile layers can be a lot of work to get setup. Here's a good >> description of the process that should answer a lot of your questions: >> http://mapki.com/wiki/Automatic_Tile_Cutter >> >> As far as creating the tiles are concerned, it's the same process for >> a V2 or a V3 map. >> >> Chad Killingsworth >> >> On Mar 17, 1:24 pm, "Ahmet" <[email protected]> wrote: >> > Thank you. >> > I think that I am missing some crucial information here. >> > >> > Do I, using the Lat/Lon limits of my overlay map, create my own images >> for >> > EACH zoom type ? >> > Based on the Google world coordinate system ? >> > Let's assume that I have an image that is 1000 by 1000 pixels and is >> between >> > (44 , 45) lat and (70 , 71) lon >> > I don't want to show it between . zoom level 6 and 17 >> > So now I have to create 11 sets of 15 tiles ? >> > >> > In the missouristate example, one of the tiles is: >> http://search.missouristate.edu/map/tilesets/baselayer/15_7893_12731.png >> > I understand the zoom level, but not sure about the 7829 and 12731. >> > >> > I presume I leave the areas I have no maps blank ? >> > the website returns "blanktile.png" if it is not matched. How does that >> work >> > ? >> > >> > Thanks you >> > Ahmet >> > >> > ----- Original Message ----- >> > From: "Chad Killingsworth" <[email protected]> >> > To: "Google Maps JavaScript API v3" < >> [email protected]> >> > Sent: Wednesday, March 17, 2010 12:36 PM >> > Subject: [Google Maps API v3] Re: Chart Overlay Tiles .. Best approach >> > >> > http://search.missouristate.edu/map/mobile/examples/tileoverlay.htm >> > >> > Chad Killingsworth >> > >> > On Mar 17, 11:24 am, "Ahmet" <[email protected]> wrote: >> > > I think I answered my own question: >> > > "There is a ImageMapType class that seems to be designed for this >> > > purpose." >> > >> > > Now.. I could not find any (short) examples of the ImageMapType class. >> > > Anybody knows where ? >> > > Thanks >> > > Ahmet >> > >> > > ----- Original Message ----- >> > > From: "Ahmet" <[email protected]> >> > > To: <[email protected]> >> > > Sent: Tuesday, March 16, 2010 5:15 PM >> > > Subject: Chart Overlay Tiles .. Best approach >> > >> > > > Ok, let's assume that I would like to overlay my own chart. >> > > > My original charts are about 10000 pixels by 10000 pixels += 50% >> > > > In order to stop the browsers to go bananas, I split them up into >> tiles, >> > > > of say, 600 by 600. >> > > > This is done in advance, not on-demand. >> > >> > > > Each chart has their corresponding lat/lon bounds >> > > > then as the user pans or zooms, I figure out which charts are >> > > > (partially) >> > > > visible, and create overlays with them. >> > > > The charts that are completely out of bounds I destroy and remove >> from >> > > > my >> > > > list, (leaving some margin) >> > >> > > > Does this make sense ? >> > > > Is there an example of this method ? >> > >> > > > Is there any other method that should be used, perhaps by >> > > > utilizing/matching the Google tile sizes ? >> > >> > > > Thanks >> > > > Ahmet >> > >> > -- >> > You received this message because you are subscribed to the Google >> Groups >> > "Google Maps JavaScript API v3" group. >> > To post to this group, send email to >> [email protected]. >> > To unsubscribe from this group, send email to >> > [email protected]<google-maps-js-api-v3%[email protected]> >> . >> > For more options, visit this group athttp:// >> groups.google.com/group/google-maps-js-api-v3?hl=en. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Google Maps JavaScript API v3" group. >> To post to this group, send email to >> [email protected]. >> To unsubscribe from this group, send email to >> [email protected]<google-maps-js-api-v3%[email protected]> >> . >> For more options, visit this group at >> http://groups.google.com/group/google-maps-js-api-v3?hl=en. >> >> > -- > You received this message because you are subscribed to the Google Groups > "Google Maps JavaScript API v3" group. > To post to this group, send email to > [email protected]. > To unsubscribe from this group, send email to > [email protected]<google-maps-js-api-v3%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/google-maps-js-api-v3?hl=en. > -- You received this message because you are subscribed to the Google Groups "Google Maps JavaScript API v3" group. 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