Hi Ben,<br><br>I think it's a bug, at least based on the conversation that took place last year with Steve Lime regarding this - <a href="http://www.mail-archive.com/mapserver-users@lists.osgeo.org/msg06123.html">http://www.mail-archive.com/mapserver-users@lists.osgeo.org/msg06123.html</a><br>
<br>I'm not sure what the current state is of this though.<br><br>Roger<br>--<br><br><div class="gmail_quote">On Fri, Apr 30, 2010 at 1:18 PM, Ben Tuttle <span dir="ltr"><<a href="mailto:benjamin.tuttle@gmail.com">benjamin.tuttle@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">I am trying to understand the results I am getting from WCS requests<br>
to MapServer.<br>
If I make the same request changing only the WCS version the images I<br>
get back are shifted by 1 pixel in the x and y directions. A request<br>
for VERSION=1.1.0 gives me the image I expect while VERSION=1.0.0<br>
gives me back an image shifted by 1 pixel in the x and y directions to<br>
the North and West.<br>
The underlying data and mapfile are the same in both cases. So I am<br>
not sure if this is perhaps a MapServer bug or if perhaps I am reading<br>
the WCS spec incorrectly and this is actually the intended result (I<br>
hope it's not). Can anyone help me out?<br>
<br>
Request Examples:<br>
<a href="http://map.ngdc.noaa.gov/cgi-bin/mapserver/test_image_ms_wcs100_avgvis42_23_47_28.tif?map=../../../nfs/gisdata/mapserver/gcv4/index.map&request=GetCoverage&service=WCS&COVERAGE=F162008_v4_avg_vis&crs=EPSG:4326&VERSION=1.0.0&format=geotiff&resx=0.0083333333&resy=0.0083333333&bbox=42,23,47,28" target="_blank">http://map.ngdc.noaa.gov/cgi-bin/mapserver/test_image_ms_wcs100_avgvis42_23_47_28.tif?map=../../../nfs/gisdata/mapserver/gcv4/index.map&request=GetCoverage&service=WCS&COVERAGE=F162008_v4_avg_vis&crs=EPSG:4326&VERSION=1.0.0&format=geotiff&resx=0.0083333333&resy=0.0083333333&bbox=42,23,47,28</a><br>

<br>
<a href="http://map.ngdc.noaa.gov/cgi-bin/mapserver/test_image_ms_wcs110_avgvis42_23_47_28.tif?map=../../../nfs/gisdata/mapserver/gcv4/index.map&request=GetCoverage&service=WCS&COVERAGE=F162008_v4_avg_vis&crs=EPSG:4326&VERSION=1.1.0&format=geotiff&resx=0.0083333333&resy=0.0083333333&bbox=42,23,47,28" target="_blank">http://map.ngdc.noaa.gov/cgi-bin/mapserver/test_image_ms_wcs110_avgvis42_23_47_28.tif?map=../../../nfs/gisdata/mapserver/gcv4/index.map&request=GetCoverage&service=WCS&COVERAGE=F162008_v4_avg_vis&crs=EPSG:4326&VERSION=1.1.0&format=geotiff&resx=0.0083333333&resy=0.0083333333&bbox=42,23,47,28</a><br>

<br>
<br>
System Details:<br>
MapServer version 5.6.3 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP<br>
OUTPUT=SVG SUPPORTS=PROJ SUPPORTS=AGG SUPPORTS=FREETYPE SUPPORTS=ICONV<br>
SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER<br>
SUPPORTS=WFS_CLIENT SUPPORTS=WCS_SERVER SUPPORTS=SOS_SERVER<br>
SUPPORTS=THREADS SUPPORTS=GEOS INPUT=TIFF INPUT=EPPL7 INPUT=POSTGIS<br>
INPUT=ORACLESPATIAL INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE<br>
<br>
Red Hat Enterprise Linux Server release 5.5 (Tikanga)<br>
<font color="#888888"><br>
--<br>
Cheers, Ben Tuttle<br>
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</font></blockquote></div><br>