Hello,
is there a way to invoke d.out.file in order to export the current wx
map display ? I would like to be able to generate a georeferenced view
on the fly, i.e. a map composition containing vector overlay with
transparency over a raster background. The button "save display to
graphic file" does not offer the geotiff option provided by d.out.file.
I could reproduce the map composition in a x monitor but it does not
support transparency...
Thanks for your advice,
Vincent
On Sep 9, 2015 3:13 AM, “Vincent Bain” <bain@toraval.fr> wrote:
Hello,
is there a way to invoke d.out.file in order to export the current wx
map display ? I would like to be able to generate a georeferenced view
on the fly, i.e. a map composition containing vector overlay with
transparency over a raster background. The button “save display to
graphic file” does not offer the geotiff option provided by d.out.file.
I could reproduce the map composition in a x monitor but it does not
support transparency…
Try d.to.rast, it creates a georeferenced raster map in the current mapset.
Anna
Thanks for your advice,
Vincent
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Thanks you Anna,
unfortunately I understand d.to.rast cannot handle the content of the
gui default display frame, which is the only display that allows me to
tweak transparency.
My temporary fix was to :
-"set computational region from display extent" ;
-press the button "save display to graphic file", outputting my
composition in a source.png file ;
-then write down a short shell script in this flavor :
%------------
eval `g.region -g`
IFS=,
size=($(identify -format %w,%h source.png))
gdal_translate -gcp 0 0 $w $n -gcp ${size[0]} 0 $e $n -gcp ${size[0]}
${size[1]} $e $s source.png target.tif
gcps2wld.py target.tif>target.tfw
%------------
This method is certainly not much accurate but it provides me a fast
georeferenced snapshot of a map composition.
Yours,
Vincent
Hi Vincent,
if I understand your use case correctly, d.to.rast should do what you want. It works in GUI. But maybe I am misunderstanding.
On Wed, Sep 9, 2015 at 9:52 AM, Vincent Bain <bain@toraval.fr> wrote:
Thanks you Anna,
unfortunately I understand d.to.rast cannot handle the content of the
gui default display frame, which is the only display that allows me to
tweak transparency.My temporary fix was to :
-“set computational region from display extent” ;
-press the button “save display to graphic file”, outputting my
composition in a source.png file ;
-then write down a short shell script in this flavor :%------------
evalg.region -g
IFS=,
size=($(identify -format %w,%h source.png))
gdal_translate -gcp 0 0 $w $n -gcp ${size[0]} 0 $e $n -gcp ${size[0]}
${size[1]} $e $s source.png target.tif
gcps2wld.py target.tif>target.tfw
%------------This method is certainly not much accurate but it provides me a fast
georeferenced snapshot of a map composition.Yours,
Vincent
I might miss something : when I run the command I get this error :
ERROR: No graphics device selected. Use d.mon to select graphics device.
Is it necessary to first start a graphics monitor (which one ?) and how
is it possible to populate this display via the GUI layer manager (and
not commands like d.vect, d.rast...)
Sorry, I guess my issue is stupid!
Vincent.
Le mercredi 09 septembre 2015 à 12:27 -0400, Anna Petrášová a écrit :
Hi Vincent,
if I understand your use case correctly, d.to.rast should do what you
want. It works in GUI. But maybe I am misunderstanding.On Wed, Sep 9, 2015 at 9:52 AM, Vincent Bain <bain@toraval.fr> wrote:
Thanks you Anna,
unfortunately I understand d.to.rast cannot handle the content
of the
gui default display frame, which is the only display that
allows me to
tweak transparency.
My temporary fix was to :
-"set computational region from display extent" ;
-press the button "save display to graphic file", outputting
my
composition in a source.png file ;
-then write down a short shell script in this flavor :
%------------
eval `g.region -g`
IFS=,
size=($(identify -format %w,%h source.png))
gdal_translate -gcp 0 0 $w $n -gcp ${size[0]} 0 $e $n -gcp
${size[0]}
${size[1]} $e $s source.png target.tif
gcps2wld.py target.tif>target.tfw
%------------
This method is certainly not much accurate but it provides me
a fast
georeferenced snapshot of a map composition.
Yours,
Vincent
On Wed, Sep 9, 2015 at 12:43 PM, Vincent Bain <bain@toraval.fr> wrote:
I might miss something : when I run the command I get this error :
ERROR: No graphics device selected. Use d.mon to select graphics device.
hm, in trunk, I am getting some weird error, but in releasebranch, typing
in GUI command console :
d.to.rast output=xxx
works for me. I have to look at the error.
Is it necessary to first start a graphics monitor (which one ?) and how
is it possible to populate this display via the GUI layer manager (and
not commands like d.vect, d.rast...)Sorry, I guess my issue is stupid!
Vincent.Le mercredi 09 septembre 2015 à 12:27 -0400, Anna Petrášová a écrit :
> Hi Vincent,
>
>
> if I understand your use case correctly, d.to.rast should do what you
> want. It works in GUI. But maybe I am misunderstanding.
>
> On Wed, Sep 9, 2015 at 9:52 AM, Vincent Bain <bain@toraval.fr> wrote:
> Thanks you Anna,
>
> unfortunately I understand d.to.rast cannot handle the content
> of the
> gui default display frame, which is the only display that
> allows me to
> tweak transparency.
>
> My temporary fix was to :
> -"set computational region from display extent" ;
> -press the button "save display to graphic file", outputting
> my
> composition in a source.png file ;
> -then write down a short shell script in this flavor :
>
> %------------
> eval `g.region -g`
> IFS=,
> size=($(identify -format %w,%h source.png))
> gdal_translate -gcp 0 0 $w $n -gcp ${size[0]} 0 $e $n -gcp
> ${size[0]}
> ${size[1]} $e $s source.png target.tif
> gcps2wld.py target.tif>target.tfw
> %------------
>
> This method is certainly not much accurate but it provides me
> a fast
> georeferenced snapshot of a map composition.
>
>
>
> Yours,
> Vincent
>
>
>