Hi Calvin
One solution would be to use GDAL, a script like the following (single
quotes (-a_nodata '-9999') for Linux, I believe)
*gdal_rasterize -a "reading" -a_srs "EPSG:*/your_srs/*//**" -a_nodata
"-9999" -ot "Float32" -of "GTiff" -tr 2 2 -co "COMPRESS=LZW" input.shp
output.tif"*
That should interpolate the points to a grid for you!
It can also be batched, an example of a windows batch for the above would be
/@echo=off//
//mkdir rasters//
//for %%f in ("*2m.shp") do gdal_rasterize -a "reading" -a_srs
"//*your_srs*//" -a_nodata "-9999" -ot "Float32" -of "GTiff" -tr 2 2 -co
"COMPRESS=LZW" "%%~nxf" "rasters/%%~nf.tif" //
//pause/
just save it as a *.bat file for example magnetometry.bat
Hope this helps,
Regards,
Richard.
On 20/04/2018 16:42, C Hamilton wrote:
I don't know how many of you have worked with archaeological
magnetormetry data, but I have been asked to help with magnetometry
data of the ancient Mound Builders in North America. I am looking for
some suggestion on how to best turn the irregular magnetic data points
into an image.
I see an Interpolation plugin that perhaps is the solution, but I also
see that it is not part of QGIS 3. Is this because it has not been
ported yet, or is not going to be porter, or is there a better solution?
I don't know if any of the Lidar tools would work for this or not.
LASTools is a commercial product and the locked version only works
with small data sets and adds noise unless you purchase a license. At
least that is how it was the last time I used it.
Thanks for any suggestions.
Calvin
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