[Qgis-user] RE: Qgis-user Digest, Vol 62, Issue 17
edinelson saldanha
edinelson_saldanha at hotmail.com
Tue Apr 12 11:20:12 PDT 2011
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Sent: abril 11, 2011 1:01
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Subject: Qgis-user Digest, Vol 62, Issue 17
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Today's Topics:
1. Re: error with r.cost (ambijat)
2. point displacement renderer pluggin (s.lazarescu)
3. Re: point displacement renderer pluggin (Marco Hugentobler)
4. Re: [GRASS-user] Re: [Qgis-user] error with r.cost (Hamish)
----------------------------------------------------------------------
Message: 1
Date: Mon, 11 Apr 2011 13:41:11 +0530
From: ambijat <ambijat at hotmail.com>
Subject: Re: [Qgis-user] error with r.cost
To: Markus Neteler <neteler at osgeo.org>, GRASS user list
<grass-user at lists.osgeo.org>, qgis-user <qgis-user at lists.osgeo.org>
Message-ID: <BLU0-SMTP4C321DDFECDC8272D13AFB7A80 at phx.gbl>
Content-Type: text/plain; charset="ISO-8859-1"; format=flowed
Hi! Markus,
I am using a mask so as to limit my operation. The only improvisation I
did was this time to run the set on Fedora14 as I have my dual boot
machine. Luckily I have now my r.cost raster built. But, before going
for that I reduced the SRTM altitude values to range between 0-255. So,
some economizing on bit size was possible.
But,
But, now I am stuck with a new thing and this is with r.walk. I am still
performing this operation on F14. But, there is a crash everytime. The
input rasters are the two one the same rescaled raster for base values
and r.cost generated raster for friction values. But, it is crashing
every time. I am not getting a headway. I need to generate a route
between two cities cross the Hindukush mountain ranges in Afghanistan.
Any, ideas to this issue. I am thinking of using r.slop.aspect raster
for friction values what do you suggest.
Thanks and regards,
Ambrish Dhaka
On 4/11/2011 1:37 AM, Markus Neteler wrote:
> Ambrish Dhaka,
>
> you need to check the region extent + resolution, probably
> you are exceeding the available RAM if you are having too
> many rows and columns.
>
> Get the information with:
> g.region -p
>
> or the respective menu entry.
>
> Markus
>
> On Sun, Apr 10, 2011 at 10:57 AM, ambijat<ambijat at hotmail.com> wrote:
>> Ramon says,
>> I'm afraid I don't - but given the current situations, I'd suggest anyone
>> that could help would also be wondering which version of QGIS you were using
>> and on which operating system.
>>
>> The Qgis version is 1.6.0 also, the result is same on GRASS (tcl/tk) 6.4
>> RC1, performed on WinXP SP3 on a core2Duo machine.
>>
>> regards,
>> Ambrish Dhaka
>
> On 10/04/2011, at 13:19 , ambijat wrote:
>> Hi All,
>> I am trying to create shortest path between two raster points (converted from v.to.rast) and I use the STRM data for the input values between the two points. This is the error I get.
>>
>> r.cost input=afg_rast at user1 output=salroute start_rast=salang at user1 max_cost=0 -k
>> G_malloc: unable to allocate 524288 bytes at setup.c:64
>> Finished with error
>>
>> Any idea why I am getting this?
>> Thanks and regards,
>> Ambrish Dhaka
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>
------------------------------
Message: 2
Date: Mon, 11 Apr 2011 01:48:54 -0700 (PDT)
From: "s.lazarescu" <stanca.lazarescu at gmail.com>
Subject: [Qgis-user] point displacement renderer pluggin
To: qgis-user at lists.osgeo.org
Message-ID: <1302511734498-6260654.post at n2.nabble.com>
Content-Type: text/plain; charset=us-ascii
Hello,
I am addressing you all regarding the QGIS plugin "point displacement
renderer".
I am presently working with QGIS for my internship project and I have
encountered the problem of overlapping point features, representing the
entreprises that were geolocated according to their postal address and often
at the street level.
The functionnality of this plugin could be the solution. Since it doesn't
seem to be part of the core plugins of QGIS I am looking for a link allowing
me to download its sources. I tried the link proposed by Marco Hugentobler
(www.hugis.net/point_displacement_renderer.tgz) but it is no longer valid.
I would highly appreciate your helping me out.
Thank you
Cheers
Stanca
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------------------------------
Message: 3
Date: Mon, 11 Apr 2011 11:01:43 +0200
From: Marco Hugentobler <marco.hugentobler at sourcepole.ch>
Subject: Re: [Qgis-user] point displacement renderer pluggin
To: qgis-user at lists.osgeo.org
Message-ID: <201104111101.43506.marco.hugentobler at sourcepole.ch>
Content-Type: Text/Plain; charset="iso-8859-1"
Hi Stanca
The point displacement plugin is in QGIS svn now. You could checkout the
sources with subversion (svn co https://svn.osgeo.org/qgis). The plugin code
is in the folder ssrc/plugins/point_displacement_renderer.
Regards,
Marco
Am Montag, 11. April 2011, um 10.48:54 schrieb s.lazarescu:
> Hello,
>
> I am addressing you all regarding the QGIS plugin "point displacement
> renderer".
>
> I am presently working with QGIS for my internship project and I have
> encountered the problem of overlapping point features, representing the
> entreprises that were geolocated according to their postal address and
> often at the street level.
>
> The functionnality of this plugin could be the solution. Since it doesn't
> seem to be part of the core plugins of QGIS I am looking for a link
> allowing me to download its sources. I tried the link proposed by Marco
> Hugentobler (www.hugis.net/point_displacement_renderer.tgz) but it is no
> longer valid.
>
> I would highly appreciate your helping me out.
>
>
> Thank you
> Cheers
>
>
> Stanca
>
>
> --
> View this message in context:
> http://osgeo-org.1803224.n2.nabble.com/point-displacement-renderer-pluggin
> -tp6260654p6260654.html Sent from the qgis-user mailing list archive at
> Nabble.com.
> _______________________________________________
> Qgis-user mailing list
> Qgis-user at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/qgis-user
--
Dr. Marco Hugentobler
Sourcepole - Linux & Open Source Solutions
Churerstrasse 22, CH-8808 Pf?ffikon SZ, Switzerland
marco.hugentobler at sourcepole.ch http://www.sourcepole.ch
Technical Advisor QGIS Project Steering Committee
------------------------------
Message: 4
Date: Mon, 11 Apr 2011 06:19:05 -0700 (PDT)
From: Hamish <hamish_b at yahoo.com>
Subject: Re: [GRASS-user] Re: [Qgis-user] error with r.cost
To: GRASS user list <grass-user at lists.osgeo.org>, qgis-user
<qgis-user at lists.osgeo.org>, ambijat <ambijat at hotmail.com>
Message-ID: <286096.45501.qm at web110010.mail.gq1.yahoo.com>
Content-Type: text/plain; charset=us-ascii
Markus wrote:
> > you need to check the region extent + resolution, probably
> > you are exceeding the available RAM if you are having too
> > many rows and columns.
> >
> > Get the information with:
> > g.region -p
> >
> > or the respective menu entry.
ambijat wrote:
> I am using a mask so as to limit my operation.
...
> But, now I am stuck with a new thing and this is with
> r.walk. I am still performing this operation on F14. But,
> there is a crash everytime.
is it the the same G_alloc() error message? if not, what does
the crash report say? if so it means you do not have enough
memory, which usually happens when the raster region/resolution
is set to crazy values.
As Markus asked, what does the region information from
"g.region -p" say? Is it more than ~ 40000x40000 rows and
columns?
Hamish
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