Computation times

00:46.675 total execution time for 5 files from examples/gallery_examples/01-geometry:

Example	Time	Mem (MB)
Primitives (04-primitives.py)	00:19.100	0.0
Volumes (03-volumes.py)	00:15.861	0.0
Lines (01-lines.py)	00:06.298	0.0
Areas (02-areas.py)	00:04.320	0.0
Keypoints (00-keypoints.py)	00:01.095	0.0