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RFC 61 : Support for measured geometries
Author: Ari Jolma
Contact: ari.jolma at gmail.com
Status: Draft
Implementation version: 2.1 or 2.2
Summary
This RFC defines how to implement measured geometries (geometries, where the points have M coordinate, i.e., they are XYM or XYZM).
Rationale
M coordinate is in the OGC simple feature model and it is used in many vector data formats.
Changes
Changes are required into the C++ API and the C API needs to be enhanced. Several drivers need to be changed to take advantage of this enhancement but also due to the changes in the C++ API.
C++ API
C API
SWIG bindings (Python / Java / C# / Perl) changes
Drivers
Utilities
Documentation
All new methods/functions are documented.
Test Suite
Compatibility Issues
Related tickets
https://trac.osgeo.org/gdal/ticket/6063 https://trac.osgeo.org/gdal/ticket/6331
Implementation
The implementation will be done by Ari Jolma.
The proposed implementation will be in https://github.com/ajolma/GDAL-XYZM
