Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

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 used for reading these .ocd files?

share|improve this question
Yes, Open Orienteering Mapper. – user20891 Aug 8 '13 at 20:10
up vote 1 down vote accepted

No, best I can tell the format has no open source parsers. The software itself does support exporting to AI and SVG files, which may be the best bet. Reverse engineering a format such as this is difficult, as it is an intermingling of symbols, raster and vector contents.

share|improve this answer

As of now, there is an OCAD viewer available from This will allow you to open and view .ocd files.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.