[mapserver-dev] Testing PROJ 5.0.0 release candidates

Jeff McKenna jmckenna at gatewaygeomatics.com
Sat Feb 24 16:00:24 PST 2018

For others interest: here is the upcoming release notes that explains 
the PROJ API changes (we should still be able to use the old proj_api.h 
API, as my tests have done, or tried): 

TODO: examine implementing proj.h API with MapServer.

Again sorry for all this noise, I just felt it was important to give 
some feedback to PROJ team before that release.

Have a good weekend all,


On 2018-02-24 7:40 PM, Jeff McKenna wrote:
> Update: MapServer and PROJ v5 were in fact reprojecting my test map, but 
> I was confused because (I was testing MS4W packages Mapbender and 
> GeoMOOSE demos) in fact the GeoMOOSE demo opening map was totally blank 
> (it should be a parcels line layer).  I went down rabbit holes trying to 
> find what was happening with PROJ v5 not displaying that data in 
> GeoMOOSE and MapServer......when in fact if I zoom out a bit the layer 
> is displayed properly (meaning the data extents have changed in the 
> displayed EPSG:3857 with PROJ v5).
> I'll report to GeoMOOSE team.
> Of course it could only be a mistake in my testing environment.
> Sorry for all this noise here.
> -jeff
> On 2018-02-23 5:18 PM, Jeff McKenna wrote:
>> Hi all,
>> I am wondering if anyone else has tested the PROJ 5 release candidates 
>> (http://lists.maptools.org/pipermail/proj/2018-February/008045.html).  
>> I am testing RC5 on Windows, with MapServer branch-7-0 and GDAL 2.2.3, 
>> and no problems with GDAL (reprojections with ogr2ogr etc), but any 
>> attempt to reproject with MapServer returns a blank map image and the 
>> following error in the logs:
>> msProjectRect(): Projection library error. All points failed to 
>> reproject.
>> Has anyone else tested this yet on any platforms?  Please let me know.
>> Thanks,
>> -jeff

Jeff McKenna
MapServer Consulting and Training Services

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