DaraParsavand wrote: > One of the key things I'd like to do with a GPS phone is to view > freely downloaded USGS topographic maps (United States) along with my > current location on the map while the phone is offline. I don't need > that many fancy features such as elevation profiling, just the ability > to pan, zoom, etc. I'd like to download maps from a PC or using the > phone (wi-fi or 3G). > > This type of functionality is currently a simple thing to do on a > laptop instead of a phone if you have a USB GPS device, by simply > downloading a GeoPDF toolbar for Adobe Reader and downloading GeoPDF > topo maps from http://store.usgs.gov (scroll down to Map Locator). > > Does anyone know of someone already working on such a project? Or do > people have comments on how easy it would be to write new code for > such a project?
Well, problem #1 can be seen in the first sentence of the Wikipedia entry for GeoPDF: "GeoPDF is a proprietary extension to the Adobe PDF file format, from TerraGo Technologies." You'll have better near-term luck with GeoTIFF, since that's apparently public domain, and there's already an open source library for reading the tags (albeit a C library). It looks like TerraGo submitted GeoPDF to the Open Geospatial Consortium (OGC), which might eventually help make it more open, perhaps even open enough for semi-random folk to create their own implementation on Android. But, until then, I think you're stuck waiting for TerraGo to port their TerraGo Mobile product to Android. -- Mark Murphy (a Commons Guy) http://commonsware.com _The Busy Coder's Guide to Android Development_ Version 1.3 Published! --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Discuss" 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/android-discuss?hl=en -~----------~----~----~----~------~----~------~--~---
