[Mapguide-trac] [mapguide-trac] #2558: wrong coordinates in EPSG:2056

[MapGuide Open Source]

#2558: wrong coordinates in EPSG:2056
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   Reporter:  gpt       |      Owner:
       Type:  defect    |     Status:  new
   Priority:  high      |  Milestone:  3.0
  Component:  General   |    Version:  3.0.0
   Severity:  critical  |   Keywords:  21781,2056,coordinates
External ID:            |
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 In version 3.0 beta 2 the coordinates for the swiss grid (2056) are
 calculated wrong, see appendix.
 For this map position (see mouse on screenshot: 7.256028174, 47.143598009)
 the coordinates should be: 2586149.188, 1221418.753 (EPSG:2056)
 (see
 http://www.swisstopo.admin.ch/internet/swisstopo/en/home/apps/calc/navref.html).
 [[BR]]
 The definition for EPSG:2056 [[BR]]
 (+proj=somerc +lat_0=46.95240555555556 +lon_0=7.439583333333333 +k_0=1
 +x_0=600000 +y_0=200000 +ellps=bessel
 +towgs84=674.374,15.056,405.346,0,0,0,0 +units=m +no_defs) [[BR]]
 is correct in MapGuide.[[BR]]
 Even though the source data is in EPSG:3857 (PseudoMercator) and the mouse
 coordinates are correct in LatLon and EPS:3857, the calculation for
 EPSG:2056 results in wrong coordinates.[[BR]]
 There is no NTv2-gridshift-transformation necessary for EPSG:2056.[[BR]]
 The WMS functionality (offering WMS out of MapGuide) has to be checked as
 well.

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Ticket URL: <https://trac.osgeo.org/mapguide/ticket/2558>
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