[GRASSLIST:54] Re: [GRASS5] Re: New GIS Manager adds transparency
to layers
Thomas Adams
Thomas.Adams at noaa.gov
Mon Mar 13 14:55:30 EST 2006
Carlos,
I am having the same behavior both on Linux & Mac OS X.
Tom
Carlos "Guâno" Grohmann wrote:
> Hello Michael,
>
> I've been playing with gism and there are some points:
>
> When I make the display window too big (like, the size of my monitor),
> some times transparency won't work, some times it wil....
>
> If I change region in terminal (say, g.region rast=myrast), and then
> just ask for a redraw, nothing happens! I have to unselect the layers,
> "draw" a blank screen and then select the layers and draw again.
> Something similar was happening when I was testing some shaded relief
> maps. I was changing vertical exaggeration, but the name of the map
> was the same, so if I just asked for a redraw, nothing would happen.
> I guess this is because the _name_ of the map being displayed hasn't changed.
>
> About the region thing, how about two mor buttons: one for "region to
> rast" and one for "region to vector" ?
>
>
> BTW, you said that the ppm way of displaying would make things
> faster... personally, I felt it slower.
>
> all the best
>
> Carlos
>
>
>
> On 3/13/06, Thomas Adams <Thomas.Adams at noaa.gov> wrote:
>
>> Michael,
>>
>> Sorry; I should have tried this first… no problem when I startup from my
>> $HOME (login) directory. Typically I like to startup GRASS from my GRASS
>> database directory. Is this the anticipated behavior or should it be
>> considered a 'bug'?
>>
>> Thanks for your feedback and great work!
>>
>> Tom
>>
>>
>> Thomas Adams wrote:
>>
>>> Michael,
>>>
>>> Where is GRASS/new display manager going to look for the .tmp
>>> directory? In the directory GRASS is started from; one's $HOME
>>> directory; other?
>>>
>>> Thanks,
>>> Tom
>>>
>>>
>>> Michael Barton wrote:
>>>
>>>> Something similar has just been reported on some lab computers
>>>> running GRASS
>>>> under Cygwin. Maybe it's a different issue, though because it only
>>>> happened
>>>> with a version of init.sh that automatically runs gism2. It seems to
>>>> run OK
>>>> if launched manually.
>>>>
>>>> Your GRASS in a non-standard location might be an issue. I'm not sure
>>>> where
>>>> the working directory error comes from. Is it a TclTk error (buttons
>>>> run,
>>>> cancel, details) or another kind of error (xwindows, bash, etc..)?
>>>>
>>>> The GIS Manager display works by creating PPM files in a temp directory
>>>> within your working GRASS mapset--set by g.tempfile. If you don't have
>>>> access to such a .tmp directory, you will have problems.
>>>>
>>>> Let me know if any of these gives you a clue to what is wrong.
>>>>
>>>> Michael
>>>>
>>>>
>>>> On 3/10/06 7:22 PM, "Thomas Adams" <Thomas.Adams at noaa.gov> wrote:
>>>>
>>>>
>>>>
>>>>> Michael,
>>>>>
>>>>> I have installed the GRASS 6.1 CVS release dated 2006_03_04
>>>>>
>>>>> and followed your instructions in the README in
>>>>> _http://www.public.asu.edu/~cmbarton/files/grass_gismgr/
>>>>> <http://www.public.asu.edu/%7Ecmbarton/files/grass_gismgr/>_gism_rc4_20060307.
>>>>>
>>>>> tgz.
>>>>>
>>>>> First off, the installation using the old d.m works fine ‹ no errors.
>>>>> When I try the new gis.m, the interface tries to come up, but it stalls
>>>>> with an error Dialog that reads "Error getting working directory name:
>>>>> no such file or directory". If I select the Error Dialog 'OK' button,
>>>>> the GIS manager completes its startup. However, if I select a raster
>>>>> map
>>>>> to display and click on the refresh button (labeled: "Display active
>>>>> layers in the current region") in the "Map Display 1" window, I get the
>>>>> same Error Dialog as I got when I first started up the new GIS Manager
>>>>> (gis.m). Also, from the time of the startup of the GIS Manager, the
>>>>> 'status indicator' in the lower left of the "Map Display 1" window
>>>>> shows: "please wait..." ‹ this never goes away.
>>>>>
>>>>> Interestingly, if I select the NVIZ button, there is no problem
>>>>> displaying the raster I selected; so, NVIZ seems OK, but the raster map
>>>>> will never display in 2-D in the "Map Display 1" windowŠ
>>>>>
>>>>> Also, when I try to use the Init.sh file from gism_rc4_20060307.tgz, I
>>>>> get shared library problems: "libgrass_gis.so cannot open shared object
>>>>> file: No such file or directory" ‹ even though the library is in the
>>>>> GRASS lib directory. I should mention that due to system constraints,
>>>>> the entire GRASS distribution and other libraries (GDAL, PROJ, etc.)
>>>>> are
>>>>> in a non-standard location.
>>>>>
>>>>> A final question: should I be using the gis.m file from
>>>>> gism_rc4_20060307.tgz? I have tried both with and withoutŠ
>>>>>
>>>>> I'm running on a Redhat Linux system, FWIWŠ
>>>>>
>>>>> Tom
>>>>>
>>>>> Michael Barton wrote:
>>>>>
>>>>>
>>>>>> I¹ve just finished phase 2 of the GIS Manager update and it¹s pretty
>>>>>> exciting. At first glance, it looks a lot like the one I¹ve been
>>>>>> working on and have in the CVS now, but with a couple of important
>>>>>> exceptions. One is that transparency is now supported for all GRASS
>>>>>> layers.
>>>>>>
>>>>>> The second will probably generate the most discussion, so I¹m ready to
>>>>>> duck and run for cover. Now GRASS is consistent with other GIS
>>>>>> programs and more intuitive (as much as I am skeptical about that
>>>>>> term) in that the uppermost layer in the layer tree is also the top
>>>>>> map in the display. Related to this, new layers insert directly above
>>>>>> the currently selected layer instead of at the bottom of the layer
>>>>>> tree.
>>>>>>
>>>>>> The main changes come Œunder the hood¹ of this version of the GIS
>>>>>> Manager. It uses g.pnmcomp to composite a set of maps (each rendered
>>>>>> as *.PPM files) into a visual display. One of the results is that now
>>>>>> GRASS is significantly faster in adding new layers, turning layers on
>>>>>> and off, and changing layer attributes‹only the new or changed layer
>>>>>> needs to be rendered; the others will just be re-composited into a
>>>>>> display from existing PPM files. This all happens in a GRASS .tmp
>>>>>> directory, so that it doesn¹t clutter up your home directories. The
>>>>>> other important thing about this new architecture is that it makes
>>>>>> GRASS even less dependent on the xdriver and PNGdriver for
>>>>>> visualization. GRASS can become more easily portable to different OS¹s
>>>>>> and GUI frameworks. It is also more scriptable. You can write a script
>>>>>> that will create a complete, multilayered map, and output it to a
>>>>>> graphics file.
>>>>>>
>>>>>> One consequencer of this new architecture is that the GIS Manager does
>>>>>> not currently support display output to PNG files. With GDAL (required
>>>>>> for many GRASS features) and ghostscript installed, it does support
>>>>>> output to PPM/PNM, TIF, JPG, BMP, EPS, and PDF.
>>>>>>
>>>>>> Command line usage is still supported in several ways‹the old
>>>>>> xterminal is still there, there is the new command console, and you
>>>>>> can add command layers to the layer tree and display them.
>>>>>>
>>>>>> You can see a screen shot of semi-transparent soil vector areas
>>>>>> overlaying a raster shaded relief map at
>>>>>>
>>>>>> _http://www.public.asu.edu/~cmbarton/files/grass_screenshots/gism2-2.jpg
>>>>>>
>>>>>> <http://www.public.asu.edu/%7Ecmbarton/files/grass_screenshots/gism2-2.jpg>
>>>>>>
>>>>>> _
>>>>>> I¹ve committed all changes to the CVS. For those of you with binary
>>>>>> versions of GRASS who would like to try it, I¹ve posted packages you
>>>>>> can use to replace your current GIS Manager on my website. For full
>>>>>> functionality, you need a version of grass that is dated
>>>>>> 21-February-2006 or later. For those of you with a slightly earlier
>>>>>> version, I made a second package with all functionality minus
>>>>>> transparency. Here are the links.
>>>>>>
>>>>>> New GIS Manager files
>>>>>>
>>>>>> <_http://www.public.asu.edu/~cmbarton/files/grass_gismgr/
>>>>>> <http://www.public.asu.edu/%7Ecmbarton/files/grass_gismgr/>_gism_rc4_20060307
>>>>>>
>>>>>> .tgz>
>>>>>>
>>>>>> New GIS Manager files for people with recent, but pre-21 February 2006
>>>>>> binaries.
>>>>>>
>>>>>> <_http://www.public.asu.edu/~cmbarton/files/grass_gismgr/
>>>>>> <http://www.public.asu.edu/%7Ecmbarton/files/grass_gismgr/>_gism_rc4_20060307
>>>>>>
>>>>>> pre_02-21.tgz>
>>>>>>
>>>>>> Enjoy
>>>>>> Michael
>>>>>>
>>>>>> ______________________________
>>>>>> Michael Barton, Professor of Anthropology
>>>>>> School of Human Evolution and Social Change
>>>>>> Arizona State University
>>>>>> Tempe, AZ 85287-2402
>>>>>> USA
>>>>>>
>>>>>> voice: 480-965-6262; fax: 480-965-7671
>>>>>> www: http://www.public.asu.edu/~cmbarton
>>>>>> <http://www.public.asu.edu/%7Ecmbarton>
>>>>>>
>>>>>>
>>>> ___________________________
>>>> Michael Barton, Professor of Anthropology
>>>> School of Human Evolution & Social Change
>>>> Arizona State University
>>>> Tempe, AZ 85287
>>>>
>>>> WWW - http://www.public.asu.edu/~cmbarton
>>>> Phone: 480-965-6262
>>>> Fax: 480-965-7671
>>>>
>>>>
>>>>
>>>
>> --
>> Thomas E Adams
>> National Weather Service
>> Ohio River Forecast Center
>> 1901 South State Route 134
>> Wilmington, OH 45177
>>
>> EMAIL: thomas.adams at noaa.gov
>>
>> VOICE: 937-383-0528
>> FAX: 937-383-0033
>>
>>
>>
>
>
> --
> +-----------------------------------------------------------+
> 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
>
>
--
Thomas E Adams
National Weather Service
Ohio River Forecast Center
1901 South State Route 134
Wilmington, OH 45177
EMAIL: thomas.adams at noaa.gov
VOICE: 937-383-0528
FAX: 937-383-0033
More information about the grass-user
mailing list