[GPlates-discuss] reconstructing lat-lon points
chhei at paleoearthlabs.org
Thu Mar 2 09:23:25 AEDT 2017
probably the most simple way: Make sure you have lon lat columns only (no metadata/attibutes!) then save the file as *.gmt and load it into GPlates (suffixing .gmt will make GPlates think it is GMT's OGR format - http://gmt.soest.hawaii.edu/doc/latest/GMT_Docs.html#the-gmt-vector-data-format-for-ogr-compatibility).
Once you have loaded the file, also load the static polygon data from the sample data set, then got to Features -> Assign PlateID and follow the wizard (you require a polygon file as cookie-cutter and a feature data set to get plate ids based on the polygons assigned).
If you have attributes associated with your points, then QGIS (http://qgis.org - Menu: Layer -> Add layer -> Add delimited text layer) might be the easiest way forward to turn the data into a shp or gmt-ogr formatted file.
On 1 Mar 2017, at 11:04 pm, Joseph Byrnes <byrnes.joseph at gmail.com> wrote:
> Hello all,
> I am working through the tutorials on Gplates, and what I need to do is reconstruct the paleolocations of 180 points on the seafloor. Is there a way to load in an ASCII file of x-y points and assign them plateIDs? There may be a section of the tutorial on how to do this, but I have not been able to find it.
> Thanks for any help,
> Joseph Byrnes
> GPlates-discuss mailing list
> GPlates-discuss at mailman.sydney.edu.au
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