gen_region_hline
— Store input lines described in Hesse normal form as regions.
gen_region_hline( : Regions : Orientation, Distance : )
The operator gen_region_hline
stores the lines described in Hesse
normal form as regions. A line is determined by the distance from the line
to the origin (Distance
, corresponds to the length of the normal
vector) and the direction of the normal vector (Orientation
,
corresponds to the orientation of the line ).
The directions were defined in such a way that
at Orientation
= 0 the normal vector lies in the direction of
the X axis, which corresponds to a vertical line.
At Orientation
=
the normal vector points in the direction
of the Y axis, i.e. a horizontal line is described.
The lines are clipped to the current maximum image format.
Regions
(output_object) region(-array) →
object
Created regions (one for every line), clipped to maximum image format.
Number of elements: Regions == Distance
Orientation
(input_control) hesseline.angle.rad(-array) →
(real / integer)
Orientation of the normal vector in radians.
Number of elements: Orientation == Distance
Default: 0.0
Suggested values: -0.78, 0.0, 0.78, 1.57
Value range:
Orientation
(lin)
Recommended increment: 0.02
Distance
(input_control) hesseline.distance(-array) →
(real / integer)
Distance from the line to the coordinate origin (0.0).
Default: 200
Suggested values: 10, 50, 100, 200, 300, 400
Value range:
Distance
(lin)
Recommended increment: 1
The operator gen_region_hline
always returns the value 2 (
H_MSG_TRUE)
.
Foundation