[QGIS-trac] Re: [Quantum GIS] #3038: OTFP issue with RNCan LCC

Quantum GIS qgis at qgis.org
Wed Apr 20 13:00:18 EDT 2011


#3038: OTFP issue with RNCan LCC
------------------------------------------------+---------------------------
   Reporter:  jdenisgiguere                     |              Owner:  nobody                            
       Type:  bug                               |             Status:  new                               
   Priority:  major: does not work as expected  |          Milestone:  Version 1.7.0                     
  Component:  Projection Support                |            Version:  1.5.0                             
   Keywords:                                    |   Platform_version:  Ubuntu Lucid + Ubuntu-gis unstable
   Platform:  Debian                            |           Must_fix:  No                                
Status_info:  0                                 |  
------------------------------------------------+---------------------------
Description changed by jef:

Old description:

> On the fly reprojection of data based on RNCan Lambert Conic Conformal
> SRS is incorrect.
>
> Steps to reproduce:
> * Add a WMS layer from Nasa JPL (Global mosaic) with SRS=WGS84
> * Enable OTFP with SRS=WGS84
> * Zoom to Nova-Scotia (http://en.wikipedia.org/wiki/Nova_Scotia)
> * Add NRC 50K layer from http://cfs.nrcan.gc.ca/files/485 and
> http://cfs.nrcan.gc.ca/files/486 (SRS can be manually specified from
> information given on http://cfs.nrcan.gc.ca/subsite/wulder/nts-manager
> with the same result).
> * Observe that south of Nova-Scotia is not covered by NRC.
>
> Reprojecting file using ogr2org gives expected result.
>
> I'm using qgis 1.5.0 from ubuntugis-unstable repository (1.5.0-2~lucid1).
>
> Here is the unexpected result with OTFP
> http://flic.kr/p/8DnFLH
>
> Here is the expected result with ogr2ogr reprojection
> http://flic.kr/p/8DqN1q

New description:

 On the fly reprojection of data based on RNCan Lambert Conic Conformal SRS
 is incorrect.

 Steps to reproduce:
  * Add a WMS layer from Nasa JPL (Global mosaic) with SRS=WGS84
  * Enable OTFP with SRS=WGS84
  * Zoom to Nova-Scotia (http://en.wikipedia.org/wiki/Nova_Scotia)
  * Add NRC 50K layer from http://cfs.nrcan.gc.ca/files/485 and
 http://cfs.nrcan.gc.ca/files/486 (SRS can be manually specified from
 information given on http://cfs.nrcan.gc.ca/subsite/wulder/nts-manager
 with the same result).
  * Observe that south of Nova-Scotia is not covered by NRC.

 Reprojecting file using ogr2ogr gives expected result.

 I'm using qgis 1.5.0 from ubuntugis-unstable repository (1.5.0-2~lucid1).

 Here is the unexpected result with OTFP
 http://flic.kr/p/8DnFLH

 Here is the expected result with ogr2ogr reprojection
 http://flic.kr/p/8DqN1q

--

-- 
Ticket URL: <https://trac.osgeo.org/qgis/ticket/3038#comment:1>
Quantum GIS <http://qgis.org>
Quantum GIS is an Open Source GIS supporting GDAL/OGR, PostGIS, and GRASS formats, and Web Services


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