[MapProxy] Error initializing Proj on EPSG:28992

Mon Nov 12 01:43:16 PST 2012

I got my mapproxy up and running with EPSG:28992, no problem. Let me give
you my configuration, perhaps it helps:

services:
  demo:
  tms:
  wmts:
  wms:
    srs: ['EPSG:4326', 'EPSG:900913', 'EPSG:28992']

layers:
   - name: nederland
     title: Basiskaart
     sources: [nl_cache]

caches:
  nl_cache:
    grids: [geonovum_grid]
    sources: [nl_wms]

grids:
  global_geodetic_sqrt2:
    base: GLOBAL_GEODETIC
    res_factor: 'sqrt2'
  geonovum_grid:
    tile_size: [256, 256]
    srs: 'EPSG:28992'
    bbox: [-285401.920, 22598.080, 595401.920, 903401.920]
    bbox_srs: 'EPSG:28992'
    res: [3440.64, 1720.32, 860.16, 430.08, 215.04, 107.52, 53.76, 26.88,
13.44, 6.72, 3.36, 1.68, 0.84, 0.42, 0.21, 0.105]

2012/11/12 Martijn Coenen <martijn at covadis.nl>

> Hello Mapproxy-world,
>
> Relatively new to Mapproxy, but very impressed about the capabilities and
> functionality of this "tool". The ease of configuration and the ability to
> bundle different sources (and types) will help me a lot here.
>
> The one and only issue I have, is our Dutch RD projection, EPSG 28992. One
> way or another, Mapproxy doesn't like it. It returns an "internal error" on
> the Demo and via the WMS service when requesting a map with this
> projection. EPSG 900913, 4326 and so on work fine (but with projection
> errors as I need 28992).
>
> The source is 28992, in this test WMTS at
> http://geodata.nationaalgeoregister.nl/tiles/service/wmts/brtachtergrondkaart/
> .
> The source URL in my configuration is as follows:
>
> sources:
>  [...]
>      Top10NLwmts:
>     type: tile
>     supported_srs: ['EPSG:28992']
>     url:
> http://geodata.nationaalgeoregister.nl/tiles/service/wmts/brtachtergrondkaart/?LAYER=brtachtergrondkaart&SERVICE=WMTS&REQUEST=GetTile&VERSION=1.0.0&TILEMATRIXSET=EPSG%%3A28992&TILEMATRIX=EPSG%%3A28992%%3A%(z)s&TILEROW=%(y)s&TILECOL=%(x)s&FORMAT=image%%2Fpng
>
> It retrieves the data and it is visible on the demo pages (in 900913 and
> 4326).
>
> Grids:
> grids:
>   applas_grid:
> #     bbox: [5.927811,51.997604,6.0,52.5]
>      srs: EPSG:900913
>      base: GLOBAL_GEODETIC
>      origin: nw
>      #tile_size: [256, 256]
>
> And in my services config:
>  wms:
>     srs: ['EPSG:900913','EPSG:4326','EPSG:28992']
>
> Now, when requesting the demo (or service) on 28992, it gives a HTTP 500
> (no further info).
> The debug window of Python reads:
>
> Traceback (most recent call last):
>   File
> "C:\Python27\virtual\lib\site-packages\mapproxy-1.4.0-py2.7.egg\mapproxy\
> wsgiapp.py", line 133, in __call__
>     resp = self.handlers[handler_name].handle(req)
>   File
> "C:\Python27\virtual\lib\site-packages\mapproxy-1.4.0-py2.7.egg\mapproxy\
> service\demo.py", line 76, in handle
>     demo = self._render_wms_template('demo/wms_demo.html', req)
>   File
> "C:\Python27\virtual\lib\site-packages\mapproxy-1.4.0-py2.7.egg\mapproxy\
> service\demo.py", line 159, in _render_wms_template
>     bbox = layer.extent.bbox_for(SRS(srs))
>   File
> "C:\Python27\virtual\lib\site-packages\mapproxy-1.4.0-py2.7.egg\mapproxy\
> srs.py", line 88, in SRS
>     srs = _SRS(srs_code)
>   File
> "C:\Python27\virtual\lib\site-packages\mapproxy-1.4.0-py2.7.egg\mapproxy\
> srs.py", line 121, in __init__
>     self.proj = Proj(init='epsg:%d' % epsg_num)
>   File
> "C:\Python27\virtual\lib\site-packages\mapproxy-1.4.0-py2.7.egg\mapproxy\
> platform\cpython\proj.py", line 172, in __init__
>     (proj_def, init, libproj.pj_strerrno(errno)))
>  ProjInitError: error initializing Proj(proj_def=None, init='epsg:28992'):
> no sys
> tem list, errno: 2
>
> Traceback (most recent call last):
>   File
> "C:\Python27\virtual\lib\site-packages\mapproxy-1.4.0-py2.7.egg\mapproxy\
> wsgiapp.py", line 133, in __call__
>     resp = self.handlers[handler_name].handle(req)
>   File
> "C:\Python27\virtual\lib\site-packages\mapproxy-1.4.0-py2.7.egg\mapproxy\
> service\demo.py", line 76, in handle
>     demo = self._render_wms_template('demo/wms_demo.html', req)
>   File
> "C:\Python27\virtual\lib\site-packages\mapproxy-1.4.0-py2.7.egg\mapproxy\
> service\demo.py", line 159, in _render_wms_template
>     bbox = layer.extent.bbox_for(SRS(srs))
>   File
> "C:\Python27\virtual\lib\site-packages\mapproxy-1.4.0-py2.7.egg\mapproxy\
> srs.py", line 88, in SRS
>     srs = _SRS(srs_code)
>   File
> "C:\Python27\virtual\lib\site-packages\mapproxy-1.4.0-py2.7.egg\mapproxy\
> srs.py", line 121, in __init__
>     self.proj = Proj(init='epsg:%d' % epsg_num)
>   File
> "C:\Python27\virtual\lib\site-packages\mapproxy-1.4.0-py2.7.egg\mapproxy\
> platform\cpython\proj.py", line 172, in __init__
>     (proj_def, init, libproj.pj_strerrno(errno)))
> ProjInitError: error initializing Proj(proj_def=None, init='epsg:28992'):
> no sys
> tem list, errno: 2
>
> Now I'm a bit lost here as I have no clue about the internals of Mapproxy.
>
> Anyone out here able to point me in the right direction? If any info is
> needed, please do say so.
>
> Best regards,
> Martijn Coenen
>
>
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>
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