Hi all,
I have the number of scanned maps (all are jpeg's with jgw referenced
files). All scans are not prepared by me, and all are scanned as whole
sheet (with legend and all other information). So when I display them in
grass or qgis, the legend of one sheet overlay the part of the next one
sheet (the screen shot is here: http://mort.no-ip.org/screen.png ).
Is there any way to don't display the part of raster file?? Or to cut
off those parts of scanned sheets??
Thanks
--
Radomir
set first your region to the inner region of the map.
then r.mapcalc newmap=originalmap
then g.region rast=otheroriginalmap,newmap
then r.patch input=otheroriginalmap,newmap output=patched
Hope that helps
Wolfgang
Radomir schrieb:
Hi all,
I have the number of scanned maps (all are jpeg's with jgw referenced
files). All scans are not prepared by me, and all are scanned as whole
sheet (with legend and all other information). So when I display them in
grass or qgis, the legend of one sheet overlay the part of the next one
sheet (the screen shot is here: http://mort.no-ip.org/screen.png ).
Is there any way to don't display the part of raster file?? Or to cut
off those parts of scanned sheets??
Thanks
Thanks,
but the problem is to define the region.
The map is in Polish coordinate reference system (EPSG 2180 - Poland
CS92) with kilometre grid. But the kilometre grid is not parallel to the
latitude/longitude grid. And the inner of the map is along
latitude/longitude. So if I define the region to the kilometre grid I
will still have small unwanted parts and I can't define the region to
the lon/lat grid.
Best regards,
Radomir
Dnia 24-02-2007, sob o godzinie 21:12 +0100, WolfgangZillig napisał(a):
set first your region to the inner region of the map.
then r.mapcalc newmap=originalmap
then g.region rast=otheroriginalmap,newmap
then r.patch input=otheroriginalmap,newmap output=patched
Hope that helps
Wolfgang
Radomir schrieb:
> Hi all,
> I have the number of scanned maps (all are jpeg's with jgw referenced
> files). All scans are not prepared by me, and all are scanned as whole
> sheet (with legend and all other information). So when I display them in
> grass or qgis, the legend of one sheet overlay the part of the next one
> sheet (the screen shot is here: http://mort.no-ip.org/screen.png ).
> Is there any way to don't display the part of raster file?? Or to cut
> off those parts of scanned sheets??
> Thanks
You can try to create a mask with r.digit, and then use r.resample
(without change region settings) to get a new map with data only
inside the mask.
Carlos
On 2/24/07, Radomir <dod.mort@gmail.com> wrote:
Thanks,
but the problem is to define the region.
The map is in Polish coordinate reference system (EPSG 2180 - Poland
CS92) with kilometre grid. But the kilometre grid is not parallel to the
latitude/longitude grid. And the inner of the map is along
latitude/longitude. So if I define the region to the kilometre grid I
will still have small unwanted parts and I can't define the region to
the lon/lat grid.
Best regards,
Radomir
Dnia 24-02-2007, sob o godzinie 21:12 +0100, WolfgangZillig napisa³(a):
> set first your region to the inner region of the map.
> then r.mapcalc newmap=originalmap
> then g.region rast=otheroriginalmap,newmap
> then r.patch input=otheroriginalmap,newmap output=patched
>
> Hope that helps
> Wolfgang
>
> Radomir schrieb:
> > Hi all,
> > I have the number of scanned maps (all are jpeg's with jgw referenced
> > files). All scans are not prepared by me, and all are scanned as whole
> > sheet (with legend and all other information). So when I display them in
> > grass or qgis, the legend of one sheet overlay the part of the next one
> > sheet (the screen shot is here: http://mort.no-ip.org/screen.png ).
> > Is there any way to don't display the part of raster file?? Or to cut
> > off those parts of scanned sheets??
> > Thanks
>
> _______________________________________________
> grassuser mailing list
> grassuser@grass.itc.it
> http://grass.itc.it/mailman/listinfo/grassuser
--
Radomir
--
+-----------------------------------------------------------+
Carlos Henrique Grohmann - Guano
Geologist M.Sc - Doctorate Student at IGc-USP - Brazil
Linux User #89721 - carlos dot grohmann at gmail dot com
+-----------------------------------------------------------+
_________________
"Good morning, doctors. I have taken the liberty of removing Windows
95 from my hard drive."
--The winning entry in a "What were HAL's first words" contest judged
by 2001: A SPACE ODYSSEY creator Arthur C. Clarke
Dnia 24-02-2007, sob o godzinie 19:38 -0200, Carlos "Guâno" Grohmann
napisał(a):
You can try to create a mask with r.digit, and then use r.resample
(without change region settings) to get a new map with data only
inside the mask.
Carlos
On 2/24/07, Radomir <dod.mort@gmail.com> wrote:
> Thanks,
> but the problem is to define the region.
> The map is in Polish coordinate reference system (EPSG 2180 - Poland
> CS92) with kilometre grid. But the kilometre grid is not parallel to the
> latitude/longitude grid. And the inner of the map is along
> latitude/longitude. So if I define the region to the kilometre grid I
> will still have small unwanted parts and I can't define the region to
> the lon/lat grid.
> Best regards,
> Radomir
>
>
> Dnia 24-02-2007, sob o godzinie 21:12 +0100, WolfgangZillig napisał(a):
> > set first your region to the inner region of the map.
> > then r.mapcalc newmap=originalmap
> > then g.region rast=otheroriginalmap,newmap
> > then r.patch input=otheroriginalmap,newmap output=patched
> >
> > Hope that helps
> > Wolfgang
> >
> > Radomir schrieb:
> > > Hi all,
> > > I have the number of scanned maps (all are jpeg's with jgw referenced
> > > files). All scans are not prepared by me, and all are scanned as whole
> > > sheet (with legend and all other information). So when I display them in
> > > grass or qgis, the legend of one sheet overlay the part of the next one
> > > sheet (the screen shot is here: http://mort.no-ip.org/screen.png ).
> > > Is there any way to don't display the part of raster file?? Or to cut
> > > off those parts of scanned sheets??
> > > Thanks
> >
> > _______________________________________________
> > grassuser mailing list
> > grassuser@grass.itc.it
> > http://grass.itc.it/mailman/listinfo/grassuser
> --
> Radomir
>
> ----
> The Future Is Now
>
> _______________________________________________
> grassuser mailing list
> grassuser@grass.itc.it
> http://grass.itc.it/mailman/listinfo/grassuser
>
