Computation times

00:47.763 total execution time for 5 files from examples/gallery_examples/01-geometry:

Example	Time	Mem (MB)
Primitives (04-primitives.py)	00:19.333	0.0
Volumes (03-volumes.py)	00:16.492	0.0
Lines (01-lines.py)	00:06.528	0.0
Areas (02-areas.py)	00:04.348	0.0
Keypoints (00-keypoints.py)	00:01.061	0.0