Ok! Is there a way to calculate the "choosen" zoom? What I need is simple : I have some coordinates and I want to get a map by GoogleMap Static API to draw some tracks on it. You explain me that it's impossible to get "exactly" a map with center and span parameters because of the fact that the zoom level is a integer. So, a way to resolve it is to get back the coordinates of corners of the map I get back. Probably if I can calculate the zoom choosen by GoogleMap I will be able to determine the corner coordinates of the map.
Have you any idea about this? On 23 juin, 11:31, Mike Williams <[email protected]> wrote: > That'll be because the zoom level can only be an integer. An increase of > one zoom level doubles the scale. Using "span" gets you the zoom level > at which the span is contained within the viewport. > > What you'd have to do is determine the pixel coordinates of the two > corners and subtract one from the other. In your static map request, ask > for an image size that matches that size. If necessary you can scale the > image with width and height attributes back to the image size you want, > but if might look a little bit pixellated. > > Determining the pixel coordinates can be done with the Maps API, using > map.fromLatLngToContainerPixel(latlng) > or > maptype.fromLatLngToPixel(latlng,zoom) > > Or you could performs the calculations in your server. Conversion code > has been posted in this group for a few server side languages. > > -- > Mike Williamshttp://econym.org.uk/gmap --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
