[GRASS-user] calculate the volume of a DEM with r.volume
marion-brunet at sfr.fr
marion-brunet at sfr.fr
Sun Jul 15 04:22:49 PDT 2018
<span style="font-family:arial,helvetica,sans-serif; font-size:12px">Hello,<br>
<br>
Indeed it worked when I changed the name!<br>
Thank you very much!<br>
<br>
Marion</span>
<div class="gl_quote" style="margin-top: 20px; padding-top: 5px;">De : "Micha Silver"<br>
A : marion-brunet at sfr.fr,"Markus Neteler" ,"grass-user"<br>
Envoyé: vendredi 13 juillet 2018 13:19<br>
Objet : Re: [GRASS-user] calculate the volume of a DEM with r.volume<br>
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Hi<br>
I noticed you have a raster with a "minus" character in the name.<br>
Sometimes that gives trouble. Not sure if it's relevant to the current problem, but it might be worth renaming to something like "dec_juin" (underscore instead of '-') and trying again.<br>
<div class="moz-cite-prefix">On 07/13/2018 10:51 AM, <a class="moz-txt-link-abbreviated" href="mailto:marion-brunet at sfr.fr">marion-brunet at sfr.fr</a> wrote:</div>
<blockquote cite="mid:757914629.33847.1531468266343.JavaMail.www at wsfrf1413" type="cite"><meta http-equiv="content-type" content="text/html; charset=utf-8"><span style="font-family:arial,helvetica,sans-serif; font-size:12px"></span><span style="font-family:arial,helvetica,sans-serif; font-size:12px">Hello,<br>
<br>
I am working on Windows and I tried using GRASS 7.2.2, GRASS 7.4.0 and GRASS 7.4.1 to see if there is any difference, but it is always the same.<br>
<br>
I have a ratser map called<span style="font-family:courier
new,courier,monospace"> dec-</span><span style="font-family:courier new,courier,monospace">juin</span><br>
First I did</span><span style="font-family:courier
new,courier,monospace"> r.clump input=dec-juin at 1217_Interpo0618 output=test</span><br>
<span style="font-size:12px">to get the clumps<br>
Then I did</span><span style="font-family:courier
new,courier,monospace"> r.volume input=dec-juin at 1217_Interpo0618 clump=test at 1217_Interpo0618</span><br>
<span style="font-family:arial,helvetica,sans-serif; font-size:12px">to have the volume.<br>
The result I have is:</span><br>
<br>
<span style="font-family:courier new,courier,monospace">(<span style="font-size:12px">Fri Jul 13 14:12:45 2018) <br>
r.volume input=dec-juin at 1217_Interpo0618 clump=test at 1217_Interpo0618 <br>
Volume report on data from <dec-juin at 1217_Interpo0618> using clumps on <test at 1217_Interpo0618> raster map<br>
Category Average Data # Cells Centroid Total</span></span><br>
<span style="font-size:12px"><span style="font-family:courier
new,courier,monospace">Number</span></span><span style="font-size:12px"><span style="font-family:courier
new,courier,monospace"> in clump Total in clump Easting Northing Volume<br>
-----------------------------------------------------------------------------<br>
1 -8.02 -72 9 191262.28 1222178.97 -22.59<br>
2 -9.02 -622 69 191265.64 1222177.29 -194.78<br>
3 -8.04 -394 49 191268.44 1222176.73 -123.30<br>
4 -7.08 -276 39 191271.23 1222177.85 -86.46<br>
5 -5.94 -427 72 191274.59 1222176.73 -133.75<br>
6 -4.30 -275 64 191285.22 1222178.97 -86.09<br>
7 -5.10 -2714 532 191288.58 1222174.50 -849.47<br>
8 -0.60 -7 12 191221.43 1222177.29 -2.27<br>
9 -8.95 -1030 115 191230.39 1222176.17 -322.31<br>
10 -10.06 -1217 121 191245.49 1222175.61 -380.88<br>
11 -10.93 -1956 179 191249.97 1222177.29 -612.34<br>
12 -10.24 -645 63 191259.48 1222175.61 -201.92<br>
13 -7.05 -621 88 191329.43 1222177.29 -194.28<br>
14 -7.51 -60 8 191336.14 1222177.29 -18.81<br>
15 -7.47 -30 4 191337.26 1222177.29 -9.35<br>
16 -8.04 -322 40 191340.06 1222177.29 -100.63<br>
17 -8.99 -108 12 191343.98 1222177.29 -33.78<br>
18 4.98 45 9 191182.26 1222175.05 14.03<br>
etc<br>
etc<br>
24458 -5.50 -22 4 191397.13 1221585.50 -6.88<br>
24459 -5.51 -33 6 191378.11 1221584.39 -10.34<br>
24460 -5.52 -11 2 191380.91 1221584.39 -3.45<br>
24461 -5.27 -30348 5764 191309.84 1221601.17 -9498.51<br>
24462 -5.49 -38 7 191358.53 1221582.15 -12.02<br>
24463 -5.49 -22 4 191363.56 1221583.83 -6.87<br>
24464 -5.48 -11 2 191385.38 1221583.83 -3.43<br>
24465 -5.49 -11 2 191387.06 1221583.83 -3.44<br>
24466 -5.50 -11 2 191388.74 1221583.83 -3.44<br>
24467 -5.50 -22 4 191360.20 1221582.71<br>
-6.88<br>
24468 -5.92 -523187 88358 191241.58 1221675.00 -163750.63 <br>
(Fri Jul 13 14:13:03 2018) La commande s'est terminée (18 sec) </span></span><br>
<br>
<span style="font-size:12px">As you can see, I have nothing at the end of the command... But I know it is finished, because when I created the clumps it said that it created 24468 clumps.<br>
Do you need any more information?<br>
<br>
<br>
Thank you very much</span><br>
<div class="gl_quote" style="margin-top: 20px; padding-top: 5px;">De : "Markus Neteler"<br>
A : <a class="moz-txt-link-abbreviated" href="mailto:marion-brunet at sfr.fr">marion-brunet at sfr.fr</a>,"grass-user"<br>
Envoyé: jeudi 12 juillet 2018 16:43<br>
Objet : Re: [GRASS-user] calculate the volume of a DEM with r.volume<br>
<div class="gl_quoted">
<div dir="ltr">Hello Marion,<br>
<br>
On Wed, Jul 11, 2018 at 10:32 AM, <<a href="mailto:marion-brunet at sfr.fr" moz-do-not-send="true">marion-brunet at sfr.fr</a>> wrote:<br>
> Hello,<br>
><br>
> I tried using r.volume as you suggested. According to the documentation it<br>
> is suitable for what I am trying to do.<br>
><br>
> However, when I use it, I don't have the "Total volume" line at the end of<br>
> the report, like it is shown in the documentation. I just have the total<br>
> volume of each clump, but not of all the clumps... Has it ever happened to<br>
> you when using this command?<br>
<br>
That's weird! Which version/operating system do you use?<br>
<br>
> in the command line<br>
><br>
> I simply wroter.volume input=difference clump=clump in the command line<br>
<br>
<br>
Here on command line:<br>
<br>
<span style="font-family:monospace,monospace">GRASS 7.4.1svn (nc_spm_08_grass7):~ > g.region raster=elevation<br>
GRASS 7.4.1svn (nc_spm_08_grass7):~ > r.volume input=elevation clump=geology_30m<br>
100%<br>
<br>
Volume report on data from <elevation> using clumps on <geology_30m> raster map<br>
<br>
Category Average Data # Cells Centroid Total<br>
Number in clump Total in clump Easting Northing Volume<br>
-----------------------------------------------------------------------------<br>
217 118.93 86288828 725562 635325.00 221535.00 8628882798.63<br>
262 108.97 21650560 198684 638935.00 222495.00 2165056037.02<br>
270 92.23 63578874 689373 642405.00 221485.00 6357887443.53<br>
405 132.96 33732662 253710 631835.00 224095.00 3373266208.59<br>
583 139.35 3011288 21609 630205.00 224665.00 301128821.55<br>
720 124.30 599618 4824 634075.00 227995.00 59961816.06<br>
766 132.43 936791 7074 631425.00 227845.00 93679120.08<br>
862 118.31 7302317 61722 630505.00 218885.00 730231746.74<br>
910 94.20 4235816 44964 639215.00 216365.00 423581613.11<br>
921 135.22 1693985 12528 630755.00 215445.00 169398523.05<br>
945 127.24 1145 9 630015.00 215015.00 114512.03<br>
946 89.91 365748 4068 639085.00 215255.00 36574833.85<br>
948 129.02 112632 873 630185.00 215115.00 11263181.57<br>
-----------------------------------------------------------------------------<br>
Total Volume = 22351026655.81</span>
<div> </div>
<div>... which looks ok.</div>
<div> </div>
<div>Can you say a bit more about your system?</div>
<div> </div>
<div>Markus</div>
</div>
</div>
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<pre class="moz-signature" cols="72">--
Micha Silver
Ben Gurion Univ.
Sde Boker, Remote Sensing Lab
cell: +972-523-665918</pre>
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