PaulWessel
commented
1 year ago Yes. The events -Ar100c is to be used when you wish to animate the line with variable thickness or color: That means converting the line to a point cloud. Since your line remains constant thickness and color then plotting the line with events -Ar as you do is the way to do it. So you can remove that superfluous events call in pre.sh.
Looking at the psevents code, I am doing a linear interpolation to find the end of the line at the new current time. So that is why the resampling via sample1d is necessary to get the great circles. However, I realise we had a bug (or unimplemented feature!) in sample1d. Documentation correctly says that if you use modifier +a to -T then it will write out the geospatial distances as last column. But it did not. So, via https://github.com/GenericMappingTools/gmt/pull/7382 I have implemented that. Once it is merged you can remove the mapproject command entirely, so that makes it simpler.
Other things you still need to change in the script (I think):
- Flip the cities file to lon, lat, name so you dont have to add extra -i statements here and there.
- Don't use quotes around filenames when there are no spaces. It makes it a bit odd to see those and wonder if they are required?
- Seems to me like your path pen need to be a bit thicker, say 3p?
- Replace the obsolete -I option to sample1d with -T
- Document what each step does, in english (and translate your spanish earlier comments).
- I think I had a few more comments earlier - email or forum?
Esteban82
In the script I have these two lines:
I see now that I am NOT using the the second command. I've been reading the documentation (events -A) but I don't.
Should I use
gmt eventsto interpolate the between cities? Or is it ok to usesample1dandmapprojectfor this animation?