Re: [GRASS-dev] Size of the volume_layout image

2013-09-21 Thread Hamish
Vaclav:
> After consultation with Sören, I changed the image size (old size
> file preserved). I also added simple README and renamed the images to
> one unified name.

Hi,
anyone have hints if width="x" or width="x%" in the  is enough
to take care of the scaling? (some browsers rescale ugly, others blend)

e.g. I put a fairly large dimension screenshot into the G6 d.correlate.sh
help page yesterday:
https://trac.osgeo.org/grass/changeset/57779

good/no good?


> Changeset:
> https://trac.osgeo.org/grass/changeset/57780

How about using svn symlinks? Then there is only wasted space on Windows and 
the g_module_imgname.{png,jpg} naming convention for help page images could be 
preserved.
(Subversion takes care of all the platform details)
or probably better just have the main r3 intro doc supply the image, then just 
have the other help pages  to it assuming that it will be there in 
$GISBASE/docs/. I don't think it even needs "../" since they all live in the 
same install dir.


gimp can read+write compressed files directly, so suggest to keep any .xcf 
files in svn as .xcf.bz2. (note mime-types remain on the internal content type, 
not the compression type used.)

perhaps the README should mention that r3.out.vtk + Paraview was used to make 
the screenshot? (it looks like it anyway)  Also, I'd also suggest to rename the 
README to something more specific as it sits in a top-level dir and one might 
assume it contains high-level instructions.


thanks,
Hamish

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Re: [GRASS-dev] Size of the volume_layout image

2013-09-21 Thread Vaclav Petras
After consultation with Sören, I changed the image size (old size file
preserved). I also added simple README and renamed the images to one
unified name.

Changeset:
https://trac.osgeo.org/grass/changeset/57780

Result will be visible here:
http://grass.osgeo.org/programming7/raster3dlib.html
http://grass.osgeo.org/grass70/manuals/raster3dintro.html
http://grass.osgeo.org/grass70/manuals/r3.out.ascii.html
http://grass.osgeo.org/grass70/manuals/r3.in.ascii.html


On Fri, Sep 20, 2013 at 12:25 AM, Vaclav Petras wrote:

> Hi,
>
> the image `volume_layout` is just too big. It is included in both user and
> programming manual. The problem is not the size in MB but just the fact
> that it is too large to show on the screen when it is part of the web page.
>
> I think that width 500 is sufficient to see all details.
>
> I would just change the size but I don't know how the image was generated
> or if we want to have the full size image somewhere.
>
> Vaclav
>
>
> In src:
> ./lib/raster3d/volume_layout.png
> ./html/volume_layout.png
> ./raster3d/r3.out.ascii/g3d_volume_layout.png
> ./raster3d/r3.in.ascii/g3d_volume_layout.png
>
> In dist:
> ./docs/html/g3d_volume_layout.png
>
> Online:
> http://grass.osgeo.org/programming7/raster3dlib.html
> http://grass.osgeo.org/grass70/manuals/raster3dintro.html
> http://grass.osgeo.org/grass70/manuals/r3.out.ascii.html
> http://grass.osgeo.org/grass70/manuals/r3.in.ascii.html
>
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Re: [GRASS-dev] v.mapcalc

2013-09-21 Thread Hamish
Vaclav wrote:
> when I saw recent changes [1] in
> grass/trunk/vector/v.mapcalc/
> I realized that there is a v.mapcalc in trunk (compilation is disabled).
> However, here is also a v.mapcalc in GSoC project for temporal algebra [2].
>
> I'm wondering how they compare with each other

for the old GRASS 5 v.mapcalc which is the subject of the
trac ticket, you can read about it here:
https://trac.osgeo.org/grass/browser/grass/trunk/vector/v.mapcalc/README


and for the temporal GIS v.mapcalc Thomas's wiki page that you linked to does a 
nice job.


AFAICT the old one is looking at math more than spatial, so perhaps a bit more 
like v.transform might be, than e.g. the functionality of v.overlay or 
v.select's GEOS tools as the temporal version might be more focused on? (I'm 
not really sure though, I'm just going from what I see in the README)

How the eventual-goals of both of these modules compare with what 
general-purpose vector ops can be done using PostGIS would be interesting to 
know too.


> and what is the plan?

I would suggest step 1 to be your question- understand and take an inventory of 
what we tools we already have, and what state they are in. Choosing the best 
names for things can come after that. Of course for the long run we should 
avoid name-space collisions if we can.


regards,
Hamish


>[1] https://trac.osgeo.org/grass/ticket/1321
>[2] 
>http://grasswiki.osgeo.org/wiki/GRASS_GSoC_2013_Temporal_GIS_Algebra_for_raster_and_vector_data_in_GRASS#v.mapcalc
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[GRASS-dev] v.mapcalc

2013-09-21 Thread Vaclav Petras
Hi,

when I saw recent changes [1] in

grass/trunk/vector/v.mapcalc/

I realized that there is a v.mapcalc in trunk (compilation is disabled).

However, here is also a v.mapcalc in GSoC project for temporal algebra [2].

I'm wondering how they compare with each other and what is the plan?

Best,
Vaclav

[1] https://trac.osgeo.org/grass/ticket/1321
[2]
http://grasswiki.osgeo.org/wiki/GRASS_GSoC_2013_Temporal_GIS_Algebra_for_raster_and_vector_data_in_GRASS#v.mapcalc
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