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I have written a Delphi library for reading shapefiles. Now I'd like to test it with some real data, but cannot find any shapefiles containing the "M" variety of data:

  • PointM, MultiPointM, PolygonM or PolylineM
  • and also "Z" data (PointZ, MultiPointZ, PolygonZ or PolylineZ) including the optional "M" data.

Any hints where I can get some test data of this kind?

https://gis.utah.gov/data/sgid-transportation/roads-system/ apparently links to some files but the ftp server times out on me.

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    There are some small shapefiles in the GDAL autotest directory trac.osgeo.org/gdal/browser/trunk/autotest/ogr/data. – user30184 Jan 9 '17 at 13:52
  • @user30184 thanks, that helped a bit (and of course I found a bug :-( ) – dummzeuch Jan 9 '17 at 14:24
  • In fact, I found multiple bugs. :-( – dummzeuch Jan 9 '17 at 14:51
  • ... but hey, that was the point. :-) – dummzeuch Jan 9 '17 at 15:00
  • Could the downvoters please tell me their reasons? – dummzeuch Jan 13 '17 at 8:57

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