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GeoB
ASIC
Reference Manual 5.Standard Functions
5-44 TPS1100-Version 1.30
GM_OUT_OF_RANGE
The foot of a perpendicular
observation is placed outside the
area
0 2
< <
τ π
/ , not
perpendicular.
Example Calculate the distance of a point to a clothoid.
DIM BA AS GM_Point_Type
DIM BE AS GM_Point_Type
DIM Point AS GM_Point_Type
DIM dL AS Double
DIM dA AS Double
DIM dDist AS Double
DIM dDist2 AS Double
DIM BasePt AS GM_Point_Type
'initialize BA, BE, Point, dA, dL adequatley
GM_CalcDistCloth( BA, BE, Point, dA, dL,
dDist, dDist2, BasePt )
5.6.11 GM_CalcDistPointLine
Description Calculation of the distance point - line and the base point of foot
of a perpendicular observation.
Declaration
GM_CalcDistPointLine(
Line AS GM_Line_Type,
Point AS GM_Point_Type,
dDistX AS Double,
dDistY AS Double,
FootPoint AS GM_Point_Type )
Remarks This function is calculating the distance of one point to the line
and his base point of the foot of a perpendicular observation. One
effective definition of line is also possible result from one parallel
(see predefined type
GM_Line_Type ).
Note Used formula: see Appendix, Geodesy Math. Formulas.