Test whether the regions of two objects are identical.
The operator test_equal_region compares the regions of the two input parameters. The n-th element in Regions1 is compared to the n-th object in Regions2 (for all n). If all regions are equal and the number of regions is identical the operator test_equal_region returns the value TRUE, otherwise FALSE.
|
Regions1 (input_object) |
region(-array) -> object |
| Test regions. | |
|
Regions2 (input_object) |
region(-array) -> object |
| Comparative regions. | |
| Number of elements: Regions1 == Regions2 | |
If F is the area of a region the runtime complexity is O(1) or O(sqrt(F)) if the result is TRUE, O(sqrt(F)) if the result is FALSE.
The operator test_equal_region returns the value 2 (H_MSG_TRUE) if both object tuples are identical. If the tuples differ in at least one place test_equal_region returns 3 (H_MSG_FALSE). The behavior in case of empty input (no input objects available) is set via the operator set_system(::'no_object_result',<Result>:). If the number of objects differs an exception is raised.
test_equal_region is reentrant and processed without parallelization.
intersection, complement, area_center
bool
Basic operators
