hey,
thanks to help of the list i rectified my scanned image.
now i want to export it as tiff in order to work with it in other gis tools.
i started r.out.tiff but although i seemed to rum for hours there was no progress.
the rectified image has 13212 rows and 19503 cols, its size: 31 mb, the rectification took 2 hours.
i run cygwin/grass 6.1 on an athlon 1000, 512 mb ram, windows xp
are there experiences about how long export to tiff should take ?
cheers
axel
thank you for the hint.
i tried r.out.gdal but did not succeed:
1.attempt:
r.out.gdal input=freiraum_wil_rec format=GTIFF output=freiraum_wil createopt=WORLDFILE=ON
ERROR: output Type not specified
2.attempt:
r.out.gdal input=freiraum_wil_rec format=GTIFF output=freiraum_wil createopt=WORLDFILE=ON type=BYTE
Signal 11
so my question is:
what is the task of “type” -> what “type” is for me to choose?
what means “Signal 11”?
have i done something completely wrong?
cheers
axel
H_B
April 20, 2005, 7:46am
3
i tried r.out.gdal but did not succeed:
1.attempt:
r.out.gdal input=freiraum_wil_rec format=GTIFF output=freiraum_wil
createopt=WORLDFILE=ON
ERROR: output Type not specified
2.attempt:
r.out.gdal input=freiraum_wil_rec format=GTIFF output=freiraum_wil
createopt=WORLDFILE=ON type=BYTE
Signal 11
so my question is:
what is the task of _type_ -> what _type_ is for me to choose?
r.out.gdal --help
type file type
options: Byte,Int16,UInt16,UInt32,Int32,Float32,Float64,CInt16,
CInt32,CFloat32,CFloat64
depending on if raster contains CELL, FCELL, or DCELL data, you might
use Int32, Float32, or Float64 e.g.
what means _Signal 11_?
It's a segmentation fault. Bug in the program.
have i done something completely wrong?
shot in the dark: maybe just capitalization?, try
format=GTiff type=Byte
?
You can do without the world file, it is stored internally, view with
gdalinfo. Try without, maybe that is causing the error.
Hamish
sorry for my ignorance,
how do i know if it is CELL, FCELL, or DCELL ?
i tried all the Types and abandoned the WORLDFILE option but the result was always Signal11.
is r.out.gdal not a "standard" function that should run without problems?
cheers
axel
the result of r.info as follows:
r.info map=freiraum_wil_rec
+----------------------------------------------------------------------------+
| Layer: freiraum_wil_rec Date: Mon Apr 18 14:09:39 2005 | Mapset: mapset1 Login of Creator: xel | Location: kv_wittlich2 | DataBase: /home/xel/grass | Title: ( freiraum_wil_rec ) |----------------------------------------------------------------------------
|
| Type of Map: raster Number of Categories: 255 | Data Type: CELL | Rows: 13212 | Columns: 19503 | Total Cells: 257673636 | Projection: Transverse Mercator (zone 0) | N: 5548802.70517742 S: 5520834.819033 Res: 2.11685484 | E: 2583382.86887561 W: 2542094.15180825 Res: 2.11704441 | Range of data: min = 2 max = 255 |
| Data Source: | freiraum_wil |
|
| Data Description: | generated by i.rectify |
| Comments: | Created from: i.rectify | Transformation order = 1 |
+----------------------------------------------------------------------------+
so its CELL
does that give you any hints about the cause of Signal 11?
cheers
axel