GDALinfo() reports the lower left corner, which agrees with gdalinfo.
Whether the origin is upper left or lower left is arbitrary, in sp and hence
in rgdal, the origin of rasters is lower left.
Roger
On Thu, 14 Jun 2012, Agustin Lobo wrote:
Hi!
I'm having different origin according to gdalinfo ( "Origin =
(0.000000000000000,1024.000000000000000)") and GDALinfo
("TTC0125v2flip.tif"). When displayed in QGIS, the origin is 0,1024
(using ubuntu 10.04, see sessionInfo at the end, tif file here:
http://dl.dropbox.com/u/3180464/TTC0125v2flip.tif
tif file was saved with
writeRaster(bout,filename="TTC0125v2flip.tif", format="GTiff",
overwrite=TRUE,flip=T)
system("gdalinfo TTC0125v2flip.tif",intern=T)
[1] "Driver: GTiff/GeoTIFF"
"Files: TTC0125v2flip.tif"
[3] "Size is 1280, 1024"
"Coordinate System is `'"
[5] "Origin = (0.000000000000000,1024.000000000000000)"
"Pixel Size = (1.000000000000000,-1.000000000000000)"
[7] "Image Structure Metadata:" ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? "
COMPRESSION=LZW"
[9] " ?INTERLEAVE=PIXEL"
"Corner Coordinates:"
[11] "Upper Left ?( ? ? ? 0.000, ? ?1024.000) "
"Lower Left ?( ? 0.0000000, ? 0.0000000) "
[13] "Upper Right ( ? ?1280.000, ? ?1024.000) "
"Lower Right ( ? ?1280.000, ? ? ? 0.000) "
[15] "Center ? ? ?( ? ? 640.000, ? ? 512.000) "
"Band 1 Block=1280x1 Type=Float32, ColorInterp=Gray"
[17] " ?Min=12.000 Max=219.000 " ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? "
Minimum=12.000, Maximum=219.000, Mean=0.000, StdDev=0.000"
[19] " ?NoData Value=-3.39999999999999996e+38" ? ? ? ? ? ? ? ? ? ? "
Metadata:"
[21] " ? ?STATISTICS_MAXIMUM=219" ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?"
STATISTICS_MEAN=0"
[23] " ? ?STATISTICS_MINIMUM=12" ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? "
STATISTICS_STDDEV=0"
[25] "Band 2 Block=1280x1 Type=Float32, ColorInterp=Undefined" ? ? "
Min=0.000 Max=215.000 "
[27] " ?Minimum=0.000, Maximum=215.000, Mean=0.000, StdDev=0.000" ?"
NoData Value=-3.39999999999999996e+38"
[29] " ?Metadata:" ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? "
STATISTICS_MAXIMUM=215"
[31] " ? ?STATISTICS_MEAN=0" ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? "
STATISTICS_MINIMUM=0"
[33] " ? ?STATISTICS_STDDEV=0"
"Band 3 Block=1280x1 Type=Float32, ColorInterp=Undefined"
[35] " ?Min=0.000 Max=234.000 " ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?"
Minimum=0.000, Maximum=234.000, Mean=0.000, StdDev=0.000"
[37] " ?NoData Value=-3.39999999999999996e+38" ? ? ? ? ? ? ? ? ? ? "
Metadata:"
[39] " ? ?STATISTICS_MAXIMUM=234" ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?"
STATISTICS_MEAN=0"
[41] " ? ?STATISTICS_MINIMUM=0" ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?"
STATISTICS_STDDEV=0"
[43] "Band 4 Block=1280x1 Type=Float32, ColorInterp=Undefined" ? ? "
Min=0.000 Max=255.000 "
[45] " ?Minimum=0.000, Maximum=255.000, Mean=0.000, StdDev=0.000" ?"
NoData Value=-3.39999999999999996e+38"
[47] " ?Metadata:" ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? "
STATISTICS_MAXIMUM=255"
[49] " ? ?STATISTICS_MEAN=0" ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? "
STATISTICS_MINIMUM=0"
[51] " ? ?STATISTICS_STDDEV=0"
"Band 5 Block=1280x1 Type=Float32, ColorInterp=Undefined"
[53] " ?Min=0.000 Max=221.000 " ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?"
Minimum=0.000, Maximum=221.000, Mean=0.000, StdDev=0.000"
[55] " ?NoData Value=-3.39999999999999996e+38" ? ? ? ? ? ? ? ? ? ? "
Metadata:"
[57] " ? ?STATISTICS_MAXIMUM=221" ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?"
STATISTICS_MEAN=0"
[59] " ? ?STATISTICS_MINIMUM=0" ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?"
STATISTICS_STDDEV=0"
[61] "Band 6 Block=1280x1 Type=Float32, ColorInterp=Undefined" ? ? "
Min=0.000 Max=178.000 "
[63] " ?Minimum=0.000, Maximum=178.000, Mean=0.000, StdDev=0.000" ?"
NoData Value=-3.39999999999999996e+38"
[65] " ?Metadata:" ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? "
STATISTICS_MAXIMUM=178"
[67] " ? ?STATISTICS_MEAN=0" ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? "
STATISTICS_MINIMUM=0"
[69] " ? ?STATISTICS_STDDEV=0"
GDALinfo("TTC0125v2flip.tif")
rows ? ? ? ?1024
columns ? ? 1280
bands ? ? ? 6
origin.x ? ? ? ?0
origin.y ? ? ? ?0
res.x ? ? ? 1
res.y ? ? ? 1
ysign ? ? ? -1
oblique.x ? 0
oblique.y ? 0
driver ? ? ?GTiff
projection ?NA
file ? ? ? ?TTC0125v2flip.tif
apparent band summary:
?GDType Bmin Bmax Bmean Bsd hasNoDataValue NoDataValue
1 Float32 ? 12 ?219 ? ? 0 ? 0 ? ? ? ? ? TRUE ? ?-3.4e+38
2 Float32 ? ?0 ?215 ? ? 0 ? 0 ? ? ? ? ? TRUE ? ?-3.4e+38
3 Float32 ? ?0 ?234 ? ? 0 ? 0 ? ? ? ? ? TRUE ? ?-3.4e+38
4 Float32 ? ?0 ?255 ? ? 0 ? 0 ? ? ? ? ? TRUE ? ?-3.4e+38
5 Float32 ? ?0 ?221 ? ? 0 ? 0 ? ? ? ? ? TRUE ? ?-3.4e+38
6 Float32 ? ?0 ?178 ? ? 0 ? 0 ? ? ? ? ? TRUE ? ?-3.4e+38
R version 2.15.0 (2012-03-30)
Platform: x86_64-pc-linux-gnu (64-bit)
locale:
[1] LC_CTYPE=en_US.UTF-8 ? ? ? LC_NUMERIC=C
LC_TIME=en_US.UTF-8 ? ? ? ?LC_COLLATE=en_US.UTF-8
[5] LC_MONETARY=en_US.UTF-8 ? ?LC_MESSAGES=en_US.UTF-8 ? ?LC_PAPER=C
? ? ? ? ? ? ?LC_NAME=C
[9] LC_ADDRESS=C ? ? ? ? ? ? ? LC_TELEPHONE=C
LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] stats ? ? graphics ?grDevices utils ? ? datasets ?methods ? base
other attached packages:
[1] raster_2.0-02 rgdal_0.7-5 ? sp_0.9-99
loaded via a namespace (and not attached):
[1] grid_2.15.0 ? ? lattice_0.19-30 tools_2.15.0
Any help?
Agus