hydrology

It would be good to give an option that allow a quiverkey (legend) to be added to motion fields, otherwise it would be difficult to accurately read speed from motion plots.

See example below

Since quiver function didn't return a quiver object, so it is hard to do that

改进了polS读取效率

We've had a feature request for computing the sum of absolute values from recorders. This should be relatively easy to add.

The LaGriT repo on clone is ~1.67 GB. The vast majority of this is from git deltas (1.014 GB), followed by testing (0.293 GB) and documentation (0.233 GB):

$ du -hs $(ls -A)
 12K	.DS_Store
1014M	.git
4.0K	.gitignore
4.0K	.travis.yml
8.0K	CONTRIBUTING.md
4.0K	LICENSE.md
8.0K	Makefile
9.7M	PyLaGriT
4.0K	README.md
233M	docs
4.0K	docssite_map.md
916K	documentation
4.0K	lagrit.log