Re: (Angular/Linear/Scale) speed in C++ API
Even Rouault <[email protected]> Mon, 02 Dec 2019 19:42:19 +0100
| Newsgroups | gmane.comp.gis.proj-4.devel |
|---|---|
| Message-ID | <1905644.ArKLy7sufd@even-i700> |
Martin, > But anyway this email is for another question. In the C++ API, class > WKTParser provides a guessDialect(string) method. But I do not see a way > to tell WKTParser::createFromWKT(string) that the given string is known > to be a GDAL flavor of WKT 1, or the OGC 01-009 standard WKT 1. Both of > them differ in the interpretation of unit of measurement in PRIMEM and > PARAMETER elements, and it seems to me hazardous to guess the flavor > automatically (I realize that it the case of PRIMEM we may rely on the > prime meridian name, but it is not guaranteed to work and it may not > solve the PARAMETER case). Did I missed something? No, you didn't miss anything. Only the GDAL flavor/interpretation of WKT1 has been implemented in createFromWKT() (For readers not familar with the issue discussed, historical considerations can be found in https://gdal.org/tutorials/wktproblems.html ) Even -- Spatialys - Geospatial professional services http://www.spatialys.com _______________________________________________ PROJ mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/proj