Add support for MultiPoint geometry to Get/Set coordinate functions

[oleinik]

Please add support for MultiPoint/MultiPoint25D to OGR_G_SetPoints, OGR_G_GetPoints, OGR_G_GetPointsCount and other methods for getting/setting vertices in points, line strings and rings. It's will simplify access to elements of such collection geometry.

[Even Rouault]

Patch welcome

[meier]

There is support in the current API, check out addPoint ​http://www.gdal.org/classOGRSimpleCurve.html and its variants addPointM() etc. There is also the option of getting number of vertices for the said geometries. getNumGeometries() is also there in the trunk version, not in the releases yet, so you might want to consider that too.

[Even Rouault]

Replying to meier:

There is support in the current API, check out addPoint ​http://www.gdal.org/classOGRSimpleCurve.html and its variants addPointM() etc. There is also the option of getting number of vertices for the said geometries. getNumGeometries() is also there in the trunk version, not in the releases yet, so you might want to consider that too.

The request from the reporter is about extending the C API to deal with multipoints. The reference to OGRSimpleCurve isn't really relevant since OGRMultiPoint doesn't derive from it.

[meier]

Right you are, I didn't notice the C API reference. @oleinik, even so, the C API does support these methods, check out OGR_G_AddGeometry(), OGR_G_SetPoint (), OGR_G_GetPoint (), OGR_G_GetPointCount() etc on ​http://www.gdal.org/ogr__api_8h.html.

[Jukka Rahkonen]

@meier says, if I understand it right, that this ticket is invalid. Are there other opinions? Are these methods poorly documented?

[Even Rouault]

This ticket has been automatically closed because Trac is no longer used for GDAL bug tracking, since the project has migrated to GitHub. If you believe this ticket is still valid, you may file it to ​https://github.com/OSGeo/gdal/issues if it is not already reported there.