Hello Georges and all
The following article, "How Good Are Modern Spatial Libraries?"
(published November 2020) does a comparison between JTS, GEOS and other
libraries:
https://doi.org/10.1007/s41019-020-00147-9
Note: I do not know why the language restriction, but if it is for
performance, the reality can be counter-intuitive. GEOS is a port of JTS
library from Java to C. So it should be the same algorithms, only in a
different language. But according benchmarks in above-cited articles,
GEOS is actually… slightly slower than JTS.
Martin
P.S.: On GEOS benchmark results: the authors attribute that to excessive
memory allocations. The malloc and free functions in C/C++ are slower
than memory allocation in Java. With a garbage collector, only surviving
objects have a cost. In a program where e.g. 90% of objects die young,
garbage collector can be more performant than explicit memory allocation
(I also saw a benchmark from IBM a long time ago doing similar
demonstration with the grep program).
