[GPlates-discuss] Conversion of text data for plotting lines and points

Tue Nov 26 03:18:38 AEDT 2019

Hi Genti,

attached your coastline file as gpmlz as demo that this can be done relatively easily. After changing your file suffix from dat to gmt I simply dropped the file into GPlates' main window and saved it out as gplmz.

I'd second Bruce - suggesting you use any of the available GIS packages (such as the freely available https://protect-au.mimecast.com/s/0OBWCp8AJQtr10mGhPYDFF?domain=qgis.org) to work with your data in a proper geospatial context and project/format your data so that you can work more easily with GPlates. Using Geopackage or Shapefile will make your life a lot easier. 

Christian

> -----Original Message-----
> From: GPlates-discuss <gplates-discuss-bounces at mailman.sydney.edu.au> On
> Behalf Of Eglington, Bruce
> Sent: Monday, 25 November 2019 4:42 PM
> To: GPlates general discussion mailing list <gplates-
> discuss at mailman.sydney.edu.au>
> Subject: Re: [GPlates-discuss] Conversion of text data for plotting
> lines and points
> 
> THINK SECURE. This email has come from an external source. Do not click
> on links or open attachments unless you recognise the sender.
> 
> Hi
>   Do you use any of the standard GIS software packages? If so, the
> easiest way to achieve what you want (since you already know GIS), is to
> create shapefiles for your features. Then you just import the shapefile
> to GPlates and join to the plate polygons in your rotation setup.
> 
> Bruce
> 
> 
> Bruce Eglington (Ph.D.)
> Murray Pyke Chair
> 
> Geological Sciences
> 114 Science Place
> Saskatoon
> Saskatchewan
> S7N 5E2
> Canada
> 
> bruce.eglington at usask.ca
> Ph: +1-306-966-5732
> 
> 
> 
> -----Original Message-----
> From: GPlates-discuss <gplates-discuss-bounces at mailman.sydney.edu.au> On
> Behalf Of Genti Toyokuni
> Sent: Monday, November 25, 2019 09:35
> To: GPlates general discussion mailing list <gplates-
> discuss at mailman.sydney.edu.au>
> Subject: Re: [GPlates-discuss] Conversion of text data for plotting
> lines and points
> 
> CAUTION: This email originated from outside of the University of
> Saskatchewan. Do not click links or open attachments unless you
> recognize the sender and know the content is safe. If in doubt, please
> forward suspicious emails to phishing at usask.ca
> 
> 
> Dear John and Christian,
> 
> Thank you very much for letting me know several ways to solve this
> problem.
> First I tried to run "convert_xy_to_gplates.py". However I received
> several syntax errors, which may be due to difference in version of
> Python in my environment.
> (I am using Python 2.5.4 in Vine Linux. I should run your programs in
> Python 3.x)
> 
> Second I tried to open my data files directly in GPlates but it also
> showed many errors.
> 
> The attached files are as follows:
> coast-eclip.dat: Coastline data (lon, lat) in the ecliptic coordinates
> which was chosen for the central Greenland to be at (lon=90deg,
> lat=0deg).
> volcano_lonlat_eclip.dat: Location of volcanoes (lon, lat) in the same
> coordinates.
> 
> If you have time, would you please confirm that you can convert these
> files into "gpmlz" format?
> 
> Best wishes,
> 
> Genti Toyokuni
> 
> 
> 2019年11月25日(月) 14:06 John Cannon <john.cannon at sydney.edu.au>:
> 
> >
> > Hi Genti,
> >
> > There's an existing pyGPlates script to do both these things.  I've
> just uploaded it to PlateTectonicTools:
> >
> > https://protect-au.mimecast.com/s/SM-bCq7BKYtAKyZDuXNaZJ?domain=eur02.safelinks.protection.outlook.com
> > https://protect-au.mimecast.com/s/VMzyCr8DLRtKPREps4ZKUb?domain=ub.com
> > &data=02%7C01%7Cchristian.heine%40shell.com%7C4585fd098c914e085e74
> > 08d771be28c7%7Cdb1e96a8a3da442a930b235cac24cd5c%7C0%7C1%7C637102933870
> > 213930&sdata=UN6u16PU5p3tjIStTVxdRjnaIcLiXaY7EPHDAXnYRug%3D&re
> > served=0
> > t_xy_to_gplates.py
> >
> > It works on its own, so if you want you can just copy it from there
> instead of installing the entire package (eg, hit 'raw' and copy'n'paste
> - sorry I'm not very experienced with Git).
> >
> >
> > To see the options run:
> >
> >     python convert_xy_to_gplates.py --help
> >
> > ...and you'll also see some examples of what the script does.
> >
> >
> > For your second point, you can use the "-s" option (eg, "-s depth")
> and then the third column of your XY file (depth) will then show up in
> GPlates (once you've loaded the generated GPML file) as a separate
> colour on each point (that you can then configure with colour palettes).
> >
> >
> > Before running the script, you'll need to install pyGPlates (and it
> currently only works with Python 2.7, though next year will also support
> Python 3):
> > https://protect-au.mimecast.com/s/ErTqCvl0PoCmpnxGFA6e3u?domain=eur02.safelinks.protection.outlook.com
> > https://protect-au.mimecast.com/s/uSVrCwVLQmiMJEK7T1zDt1?domain=plates.org &data=02%7C01%7Cchristia
> > n.heine%40shell.com%7C4585fd098c914e085e7408d771be28c7%7Cdb1e96a8a3da4
> > 42a930b235cac24cd5c%7C0%7C1%7C637102933870213930&sdata=ktXFFT4uv%2
> > FHhTQln7L%2B2J2Vy%2BqLQ7pKhuTNX8fiGkiM%3D&reserved=0
> >
> > Regards,
> > John
> >
> > -----Original Message-----
> > From: GPlates-discuss <gplates-discuss-bounces at mailman.sydney.edu.au>
> > On Behalf Of Genti Toyokuni
> > Sent: Monday, 25 November 2019 3:33 PM
> > To: gplates-discuss at mailman.sydney.edu.au
> > Subject: [GPlates-discuss] Conversion of text data for plotting lines
> > and points
> >
> > Dear Sirs;
> >
> > Thank you very much for providing us a great software!
> > I want to ask you the following two points:
> >
> > (1) How can I convert a simple text list of longitudes and latitudes
> including a ">" sign as a line separator, which is commonly used in
> Generic Mapping Tools, into "gpmlz" format? I want to plot several lines
> specified by the list on the Earth's surface.
> >
> > (2) How can I convert a simple text list of longitudes, latitudes, and
> depths showing locations of volcanoes, hotspots, and hypocenters into a
> file format which can be opend by GPlates?
> >
> > I am sorry for my very basic questions.
> >
> > Best wishes,
> >
> > Genti Toyokuni
> >
> > _______________________________________________
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