<div dir="auto"><div>I am trying to interpolate particle size of soils, which i will then transform into a permeability. </div><div dir="auto">the option to stack multiple raster is the path i am going to use, and i think kriging is the probably the most suited for soil properties. Inverse distance should be good and lighter in terms of computation. <br>i have to figure out to run the interpolation based on a query result. i am not sure if this has to be a 2 step process or 1 step. </div><div dir="auto"><br><div class="gmail_quote" dir="auto"><div dir="ltr">On Sun, Oct 28, 2018, 11:34 Nicolas Cadieux, <<a href="mailto:nicolas.cadieux@archeotec.ca">nicolas.cadieux@archeotec.ca</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
This is interesting. Basically the end result is a multi band raster, which can also be done by stacking multiple band rasters. I don’t know anything about this v.vol.rst algorithm but it sound interesting. I do do see a problem though. Your data sets may not all like to be interpolated with a single algorithm. So unless you can modify the interpolation algorithm for each band, you will probably end up with a bad raster data set. The chosen algorithm must work like the phenomenon you are trying to study.<br>
<br>
As an example, using a simple TIN to predict the weather will most likely fail as weather pattern don’t work like a TIN. Inverse distance weight would probably be better. <br>
<br>
Nicolas<br>
<br>
> Le 28 oct. 2018 à 11:00, Francois Chartier <<a href="mailto:fra.chartier@gmail.com" target="_blank" rel="noreferrer">fra.chartier@gmail.com</a>> a écrit :<br>
> <br>
> Hi<br>
> <br>
> Is the plugin v vol rst available from within qgis? i didnt see it in the list of vector plugin from grass. <br>
> i am looking for a 3d interpolator and i believe only grass can do this in open source. <br>
> Are there other plugins that can do 3d interpolation? <br>
> by 3d i am not referring to interpolation of elevation, but by interpolation of 3d dataset with xyz + attribute (ex: soil moisture), with data points vertically stacked, and would need to interpolate verically and horizontally. <br>
> <br>
> thks<br>
> f<br>
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