try upgrading to 6.4.1, and the size_column= option should
start to work. (n.b. adding this option was actually inspired by
the desire to vary symbol size for earthquake plots)
also you will find in GRASS 6.4.1 the new extra/ring symbol,
which is similar to basic/circle with fill_color=none, but
allows the dynamic color setting to colorize the border line,
not the fill area. (so the fill area does not mask smaller quakes
at close epicenters)
great !
Also, I am bigginer user of grass and unix shell.
I made the script referring to your advices as follows;
Thank you !
Now, I trouble about legend of magnitude - circle.
Though grass had command 'd.legend!', this is raster only....
I will draw some cicles in the same point related to dummy data of magnitude.
Not sure if it has already been suggested but you could create buffers
with radius defined by the magnitude of the
quake(http://grass.osgeo.org/gdp/html_grass64/v.buffer.html
"bufcolumn" can be used ). You could then color the circles.
Sitansu
2011/6/20 <sgw00412@nifty.com>:
> Dear Hamish and all
>
> Than you for some useful advices.
>
> I done upgrade grass versio from 6.4.0 to 6.4.1.
>
>> try upgrading to 6.4.1, and the size_column= option should
>> start to work. (n.b. adding this option was actually inspired by
>> the desire to vary symbol size for earthquake plots)
>
>> also you will find in GRASS 6.4.1 the new extra/ring symbol,
>> which is similar to basic/circle with fill_color=none, but
>> allows the dynamic color setting to colorize the border line,
>> not the fill area. (so the fill area does not mask smaller quakes
>> at close epicenters)
>
> great !
>
> Also, I am bigginer user of grass and unix shell.
> I made the script referring to your advices as follows;
> Thank you !
>
> Best
> Yasuo shimada ( japan weather association )
>
> --
> < shell script >
> http://homepage1.nifty.com/8856/grass_quake_en.html
>
> < quake map 13. June >
> http://homepage1.nifty.com/8856/gg20110613.png
>
> < quake map 14. June >
> http://homepage1.nifty.com/8856/gg20110614.png
>
> _______________________________________________
> grass-user mailing list
> grass-user@lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/grass-user
>
v.in.ascii + d.vect + some trial and error time to get the spacing correct.
this is something that the d.vect.thematic script can do for its plots,
and something I still haven't completely finished in the d.barb module-in-
development.
For ps.map hardcopy plots I think you might have to use v.buffer.
Oh, and d.vect.chart was the first module to allow bubble plots.
I should mention that I've never been very happy with the idea
of needing a second figure just for the legend. Another approach
I've tried, which also solves the problem of clearly defining the
epicenter when the bubble around it is huge, is to add marker
symbols there as well as the rings. So the legend sort of happens
in-place. For example: http://adhoc.osgeo.osuosl.org/grass/archive/gns_Chch_quakes_sept2010_to_feb2011.png
(backdrop is LANDSAT downloaded with the r.in.onearth addon
module and prettified with the i.landsat.rgb module; for
off-shore areas you might look at the colorized versions of the
ETOPO1 dataset, as it shows the deep sea trenches well. legend
in the bottom right was made using d.graph and d.text)
