A standard way that information is encoded for storage in a computer file

learn more… | top users | synonyms

15
votes
3answers
1k views

What is the wire format for Google's new vector map tiles?

Google recently released new vector cartography for their mobile maps. I'm curious if anyone here has any insight into the wire format they use for transmission? I've experimented with a few formats ...
10
votes
3answers
3k views

How can I transform a georeferenced JPG to a georeferenced TIF?

I have an georeferenced JPG file and a JGW file containing the coordinates. How can I transform it to a georeferenced TIF file and a TFW file? I have tried to save the JPG file as an TIF file in ...
0
votes
1answer
754 views

How can I open a georeferenced JPG file in OCAD?

I have a georeferenced .jpg file with the .jgw file containing the coordinates. I want to use it as a background in OCAD. But when I open the file as a background, the jpg file is not georeferenced to ...
10
votes
14answers
7k views

Which GIS support DXF and/or DWG?

Which GIS support DXF and/or DWG (preferably read&write)? Update: Are there any open source GIS supporting these or similar CAD files? Support of CAD files generally seems to be problematic. ...
7
votes
3answers
254 views

Custom, low-level representation of streets and traffic rules

I'm new to GIS, and I'm still trying to gain an understanding of what can be represented in the various GIS files. Very generally I know(/think) that you can represent points, that lines, polylines, ...
13
votes
4answers
2k views

Are ArcGIS *.lyr and *.mxd data format specs published?

Are the binary formats of *.lyr and *.mxd files published?
61
votes
19answers
54k views

How to convert between KML and Esri's shapefile (SHP) format?

My users are sending me point data that were digitized using GoogleEarth. How can I convert their KML to a shapefile?
1
vote
2answers
718 views

Is there any open source library for reading OCAD files?

I would like to read map files created by OCAD (.ocd). The file format specification is open and available on the web page, but it's binary and complex. Is there an open source library that can be ...