Incorrect WKT output for MULTIPOINT

[Mateusz Łoskot]

BNF grammar for Well-Known-Text format documented in OGC 05-126 (ISO 19125-1)
specification says that correct MULTIPOINT definition looks like this:

MULTIPOINT((10 10), (20 20))

However, WKT examples provided in this document suggest that following form of
MULTIPOINT WKT is also valid:

MULTIPOINT(10 10, 20 20)

but it's not.

This issue was recently explained on the OGC Forum:
http://feature.opengeospatial.org/forumbb/viewtopic.php?t=301

OGR in current version GDAL 1.3.2 accepts input of MULTIPOINT WKT strings in
both forms:
- correct as defined by the BNF grammar: MULTIPOINT((10 10), (20 20))
- incorrect as presented in the WKT examples: MULTIPOINT(10 10, 20 20)

The WKT output produced by OGR follows second and incorrect form.
In next release, after 1.3.2, OGR will be corrected to provide better
conformance with the OGC specification and WKT output will be produced in
correct form.

[Mateusz Łoskot]

The important aspect of this problem is compatibility between various WKT
readers/writers used around.
For further reference, here are links to discussions on mailing lists of other
projects:
http://lists.refractions.net/pipermail/jts-devel/2006-April/001572.html
http://postgis.refractions.net/pipermail/postgis-users/2006-April/011923.html

[Mateusz Łoskot]

Partially fixed.
Currently, OGR supports both syntax of WKT for MULTIPOINT geometries - correct
and incorrect - as input but still outputs the incorrect syntax.

This back is marked as LATER because the WKT output syntax is going to be fixed
soon.