connect_and_holes — Number of connection components and holes
connect_and_holes(Regions : : : NumConnected, NumHoles)
The operator connect_and_holes calculates the number of
connection components and the number of holes of
each region of Regions.
In the documentation of this chapter (Regions / Features), you can find an image illustrating regions which vary in the number of their connection components and the number of their holes.
If more than one region is passed the numerical values of the
output control parameters NumConnected and NumHoles
are each stored in a tuple, the position of a value in the tuple
corresponding to the position of the region in the input tuple.
Regions (input_object) region(-array) → object
Region(s) to be examined.
NumConnected (output_control) integer(-array) → (integer)
Number of connection components of a region.
NumHoles (output_control) integer(-array) → (integer)
Number of holes of a region.
The operator connect_and_holes returns the value 2 (H_MSG_TRUE)
if the input is not empty.
The behavior in case of empty input (no input regions available) is
set via the operator set_system('no_object_result',<Result>).
The behavior in case of empty region (the region is the empty set) is set via
set_system('empty_region_result',<Result>).
threshold,
regiongrowing,
connection
connection,
fill_up,
fill_up_shape,
union1
Foundation