[MapServer-msautotest]GetCoverage with GEOTIFF_16 format is offset

[nsavard@…]

I run the wcs_simple.map msautotest and for the GetCoverage request with a
GEOTIFF_16 format I get an image that has a certain offset on Windows.  I'm
referring to wcs_16.tif image.  I suspect that it is related to MS1916 bug since
my Windows build is maybe not as recent as the Linux one.

Tested on MS beta 3.

Query string:
QUERY_STRING="map=wcs_simple.map&SERVICE=WCS&VERSION=1.0.0&
REQUEST=GetCoverage&WIDTH=120&HEIGHT=90&FORMAT=GEOTIFF_16&
BBOX=0,0,400,300&COVERAGE=grey&CRS=EPSG:32611"


diff output from gdalinfo of expected and actual result:

22,23c22,23
< Origin = (-0.000000,300.000000)
< Pixel Size = (3.33333333,-3.33333333)
---
> Origin = (-1.680672,301.685393)
> Pixel Size = (3.36134454,-3.37078652)
27,30c27,30
< Upper Left  (      -0.000,     300.000) (121d29'19.48"W,  0d 0'9.74"N)
< Lower Left  (  -0.0000000,   0.0000000) (121d29'19.48"W,  0d 0'0.01"N)
< Upper Right (     400.000,     300.000) (121d29'6.58"W,  0d 0'9.74"N)
< Lower Right (     400.000,       0.000) (121d29'6.58"W,  0d 0'0.01"N)
---
> Upper Left  (      -1.681,     301.685) (121d29'19.53"W,  0d 0'9.80"N)
> Lower Left  (  -1.6806723,  -1.6853933) (121d29'19.53"W,  0d 0'0.05"S)
> Upper Right (     401.681,     301.685) (121d29'6.52"W,  0d 0'9.80"N)
> Lower Right (     401.681,      -1.685) (121d29'6.52"W,  0d 0'0.05"S)

[nsavard@…]

The problem still occur with MS 4.10 release.

I work with ms4w 2.2 (php 1.5.6).

[nsavard]

Replying to nsavard@mapgears.com:

I run the wcs_simple.map msautotest and for the GetCoverage request with a
GEOTIFF_16 format I get an image that has a certain offset on Windows.  I'm
referring to wcs_16.tif image.  I suspect that it is related to MS1916 bug since
my Windows build is maybe not as recent as the Linux one.

Tested on MS beta 3.

Query string:
QUERY_STRING="map=wcs_simple.map&SERVICE=WCS&VERSION=1.0.0&
REQUEST=GetCoverage&WIDTH=120&HEIGHT=90&FORMAT=GEOTIFF_16&
BBOX=0,0,400,300&COVERAGE=grey&CRS=EPSG:32611"


diff output from gdalinfo of expected and actual result:

22,23c22,23
< Origin = (-0.000000,300.000000)
< Pixel Size = (3.33333333,-3.33333333)
---
> Origin = (-1.680672,301.685393)
> Pixel Size = (3.36134454,-3.37078652)
27,30c27,30
< Upper Left  (      -0.000,     300.000) (121d29'19.48"W,  0d 0'9.74"N)
< Lower Left  (  -0.0000000,   0.0000000) (121d29'19.48"W,  0d 0'0.01"N)
< Upper Right (     400.000,     300.000) (121d29'6.58"W,  0d 0'9.74"N)
< Lower Right (     400.000,       0.000) (121d29'6.58"W,  0d 0'0.01"N)
---
> Upper Left  (      -1.681,     301.685) (121d29'19.53"W,  0d 0'9.80"N)
> Lower Left  (  -1.6806723,  -1.6853933) (121d29'19.53"W,  0d 0'0.05"S)
> Upper Right (     401.681,     301.685) (121d29'6.52"W,  0d 0'9.80"N)
> Lower Right (     401.681,      -1.685) (121d29'6.52"W,  0d 0'0.05"S)

I ran the msautotest against MS4.99, the differences between the expected and actual results are now:

22c22 < Origin = (-0.000000000000001,299.999999999999940) ---

Origin = (0.000000000000000,300.000000000000000)

27,28c27,28 < Upper Left ( -0.000, 300.000) (121d29'19.48"W, 0d 0'9.74"N) < Lower Left ( -0.0000000, -0.0000000) (121d29'19.48"W, 0d 0'0.00"S) ---

Upper Left ( 0.000, 300.000) (121d29'19.48"W, 0d 0'9.74"N) Lower Left ( 0.0000000, 0.0000000) (121d29'19.48"W, 0d 0'0.01"N)

30c30 < Lower Right ( 400.000, -0.000) (121d29'6.58"W, 0d 0'0.00"S) ---

Lower Right ( 400.000, 0.000) (121d29'6.58"W, 0d 0'0.01"N)

What should I do with the msautotest to take care of these results on Windows?

[warmerdam]

Investigating.