Computation times

00:50.714 total execution time for 5 files from examples/gallery_examples/01-geometry:

Example	Time	Mem (MB)
Primitives (04-primitives.py)	00:20.430	0.0
Volumes (03-volumes.py)	00:17.541	0.0
Lines (01-lines.py)	00:06.981	0.0
Areas (02-areas.py)	00:04.726	0.0
Keypoints (00-keypoints.py)	00:01.035	0.0