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GeoB
ASIC
Reference Manual 5.Standard Functions
5-42 TPS1100-Version 1.30
5.6.9 GM_CalcDistPointCircle
Description Calculation of the distance point to circle and the base point of
plumb line.
Declaration GM_CalcDistPointCircle(
Point AS GM_Point_Type,
Circle AS GM_Circle_Type,
dDist AS Double,
FootPoint AS GM_Point_Type )
Remarks This function is calculating the distance of one point to a circle
and his base-point of the foot of a perpendicular observation.
Note Used formula: see Appendix, Geodesy Math. Formulas.
Parameters
Point in
coordinates and exactness of the point
to be plumbed
Circle in
circle
dDist out
distance point - circle [m]
FootPoint out
coordinate of the base point of plumb
line
Return Codes
RC_OK
always OK
Example Calculate the distance of a point to a circle.
DIM Pt AS GM_Point_Type
DIM Circle AS GM_Circle_Type
DIM dDist
AS Double
DIM BasePt AS GM_Point_Type
'initialize Pt and circle with any values
GM_CalcDistPointCircle( Pt, Circle,
dDist, BasePt )