[GRASS-user] Re: announcement of strahler stream order analysis

Tue Jul 28 08:48:53 EDT 2009

It works fine on my machine.  Mac OS X, compilied addon and compilied
GRASS from scratch.  The strahler output also looks sensable.  I do
have a question, though.  Say I have my own delineated streams with
another method, but in raster format- will this still work?  And is
there an easy way to a vector out of a raster stream network?

Stephen Sefick

On Tue, Jul 28, 2009 at 4:32 AM, Margherita Di Leo<diregola at gmail.com> wrote:
> Hi Jarek,
> I downloaded and compiled r.stream without problems but i'm afraid it does
> not work:
>
> r.stream dir=drainage at ex_20 stream=basin1 at ex_20 strahler=strahler
> shreeve=shreve class=class
>
> dirs, 3
> streams, 4
> Reading maps...
> *** glibc detected *** r.stream: corrupted double-linked list:
> 0x000000000067c2c0 ***
> ======= Backtrace: =========
> /lib/libc.so.6[0x7f77dfb86322]
> /lib/libc.so.6(cfree+0x8c)[0x7f77dfb89c1c]
> r.stream(createMaps+0x353)[0x401df3]
> r.stream(main+0x1c1)[0x402011]
> /lib/libc.so.6(__libc_start_main+0xf4)[0x7f77dfb301c4]
> r.stream[0x401619]
> ======= Memory map: ========
> 00400000-00404000 r-xp 00000000 08:03 5955752
> /usr/local/grass-6.5.svn/bin/r.stream
> 00603000-00604000 rw-p 00003000 08:03 5955752
> /usr/local/grass-6.5.svn/bin/r.stream
> 00604000-41e9f000 rw-p 00604000 00:00 0 [heap]
> 7f77d8000000-7f77d8021000 rw-p 7f77d8000000 00:00 0
> 7f77d8021000-7f77dc000000 ---p 7f77d8021000 00:00 0
> 7f77df700000-7f77df70d000 r-xp 00000000 08:03 4071544 /lib/libgcc_s.so.1
> 7f77df70d000-7f77df90d000 ---p 0000d000 08:03 4071544 /lib/libgcc_s.so.1
> 7f77df90d000-7f77df90e000 rw-p 0000d000 08:03 4071544 /lib/libgcc_s.so.1
> 7f77df90e000-7f77df910000 r-xp 00000000 08:03 6677083 /lib/libdl-2.7.so
> 7f77df910000-7f77dfb10000 ---p 00002000 08:03 6677083 /lib/libdl-2.7.so
> 7f77dfb10000-7f77dfb12000 rw-p 00002000 08:03 6677083 /lib/libdl-2.7.so
> 7f77dfb12000-7f77dfc6a000 r-xp 00000000 08:03 6677080 /lib/libc-2.7.so
> 7f77dfc6a000-7f77dfe6a000 ---p 00158000 08:03 6677080 /lib/libc-2.7.so
> 7f77dfe6a000-7f77dfe6d000 r--p 00158000 08:03 6677080 /lib/libc-2.7.so
> 7f77dfe6d000-7f77dfe6f000 rw-p 0015b000 08:03 6677080 /lib/libc-2.7.so
> 7f77dfe6f000-7f77dfe74000 rw-p 7f77dfe6f000 00:00 0
> 7f77dfe74000-7f77dfef4000 r-xp 00000000 08:03 6677084 /lib/libm-2.7.so
> 7f77dfef4000-7f77e00f3000 ---p 00080000 08:03 6677084 /lib/libm-2.7.so
> 7f77e00f3000-7f77e00f5000 rw-p 0007f000 08:03 6677084 /lib/libm-2.7.so
> 7f77e00f5000-7f77e010b000 r-xp 00000000 08:03 6490242
> /usr/lib/libz.so.1.2.3.3
> 7f77e010b000-7f77e030b000 ---p 00016000 08:03 6490242
> /usr/lib/libz.so.1.2.3.3
> 7f77e030b000-7f77e030c000 rw-p 00016000 08:03 6490242
> /usr/lib/libz.so.1.2.3.3
> 7f77e030c000-7f77e0314000 r-xp 00000000 08:03 984193
> /usr/local/grass-6.5.svn/lib/libgrass_datetime.6.5.svn.so
> 7f77e0314000-7f77e0513000 ---p 00008000 08:03 984193
> /usr/local/grass-6.5.svn/lib/libgrass_datetime.6.5.svn.so
> 7f77e0513000-7f77e0514000 rw-p 00007000 08:03 984193
> /usr/local/grass-6.5.svn/lib/libgrass_datetime.6.5.svn.so
> 7f77e0514000-7f77e0567000 r-xp 00000000 08:03 984236
> /usr/local/grass-6.5.svn/lib/libgrass_gis.6.5.svn.so
> 7f77e0567000-7f77e0766000 ---p 00053000 08:03 984236
> /usr/local/grass-6.5.svn/lib/libgrass_gis.6.5.svn.so
> 7f77e0766000-7f77e0769000 rw-p 00052000 08:03 984236
> /usr/local/grass-6.5.svn/lib/libgrass_gis.6.5.svn.so
> 7f77e0769000-7f77e0770000 rw-p 7f77e0769000 00:00 0
> 7f77e0770000-7f77e078d000 r-xp 00000000 08:03 6676548 /lib/ld-2.7.so
> 7f77e0926000-7f77e0965000 r--p 00000000 08:03 6521179
> /usr/lib/locale/en_GB.utf8/LC_CTYPE
> 7f77e0965000-7f77e0969000 rw-p 7f77e0965000 00:00 0
> 7f77e0982000-7f77e0983000 r--p 00000000 08:03 6521188
> /usr/lib/locale/en_GB.utf8/LC_MESSAGES/SYS_LC_MESSAGES
> 7f77e0983000-7f77e098a000 r--s 00000000 08:03 6496774
> /usr/lib/gconv/gconv-modules.cache
> 7f77e098a000-7f77e098d000 rw-p 7f77e098a000 00:00 0
> 7f77e098d000-7f77e098f000 rw-p 0001d000 08:03 6676548 /lib/ld-2.7.so
> 7fffe8979000-7fffe898e000 rw-p 7ffffffea000 00:00 0 [stack]
> 7fffe89fe000-7fffe8a00000 r-xp 7fffe89fe000 00:00 0 [vdso]
> ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall]
> Aborted
>
>
>>>> Hi list!
>>>>
>>>> I just finish first version of new grass module r.stream. Module is
>>>> regular
>>>> Grass module, written in C an has no addational dependencies. It was
>>>> compiled with GRASS65 devel  downloaded in last  two week. Source code
>>>> you
>>>> can find here:
>>>>
>>>> http://heretic.livenet.pl/heretic/r.stream.tar.gz
>>>>
>>>> Module compiles and seems to work. Analysis was tested only on one
>>>> dataset.
>>>>
>>>> To compile it copy r.streams directory to your grassXX../raster/  cd
>>>> r.stream run make and make install
>>>>
>>>> What module calculate:
>>>> - strahler stream order
>>>> - shreeve stream magnitude
>>>> - class of topological elements of drainage networks
>>>>
>>>> Module use r.watershed outputs: SDF flow direction and SDF stream
>>>> network.
>>>>
>>>>
>>>> Analysis of r.stream shall be run on same regions setings as
>>>> r.watershed. If
>>>> no, run g.region rast=your_dir_file first. For now module do not check
>>>> if
>>>> region and rasters are identical. It is planned to add in nearest
>>>> feature.
>>>> It also do not check if dirs and streams are SDF result. Threre are no
>>>> addational description. It will be added after testing.
>>>>
>>>> It works only on cells data. Floating points data are not allowed (and
>>>> have
>>>> no sense).
>>>>
>>>> Module is quite fast. 3000 x3000 cells all three analysis runs no more
>>>> than
>>>> 30 s. on AMD 3800 2GB, Ubuntu 8.04
>>>>
>>>> Module is part of comprehensive project which will add full Horton
>>>> analysis
>>>> and some addational terrrains analysis to Grass. More details in the
>>>> feature. Any cooperation is welcome. The next module I plan is
>>>> directional
>>>> vectorisation of stream network.
>>>>
>>>> For now module is available only form web address pointed below. After
>>>> testing and removing critical errors it will be added to grass add-ons
>>>> (or
>>>> maybe to main branch?).
>>>>
>>>> Any coments, improvements and critics is very welcome.
>>>>
>>>> More advanced Grass developers: Please check my code. Its funny, but I
>>>> don't
>>>> know C.
>>>> General code is based on GRASS r.topindex module (by Keith Beven and
>>>> Huidae
>>>> Cho, strongly modified)
>>>> Strahler stream order algorithm from Saga GIS (by Victor Olaya,
>>>> modified)
>>>> Shreeve stream magnitude and class of topological network are my own
>>>> ideas
>>>>
>>>> Test and enjoy.
>>>>
>>>> Jarek Jasiewicz
>>>> Adam Mickiewicz University, Poznan
>>>> Geoecology and Geoinformation Institute
>>>> _______________________________________________
>>>> grass-user mailing list
>>>> grass-user at lists.osgeo.org
>>>> http://lists.osgeo.org/mailman/listinfo/grass-user
>>>>
>>>>
>
> --
> Eng. Margherita Di Leo
> Ph.D. Student Methods and Technologies for Environmental Monitoring
> Department of Environmental Engineering and Physics (DIFA)
>
> University of Basilicata Campus Macchia Romana
> 85100 - Potenza Italy
>
> Office: +39-0971205363
> Fax: +39-0971205160
> E-mail: dileomargherita AT gmail DOT com
> Skype: dileomargherita
> URL:
> http://www.difa.unibas.it/A_Manager_PP.do?azione=visualizzaHomePage&id=106
>
>
>
>
>
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>

-- 
Stephen Sefick

Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods.  We are mammals, and have not exhausted the
annoying little problems of being mammals.

								-K. Mullis