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GeoB
ASIC
Reference Manual 5.Standard Functions
5-60 TPS1100-Version 1.30
5.6.21 GM_CalcPointInCircle
Description Calculation of a point on a circle.
Declaration
GM_CalcPointInCircle(
StartOfArc AS GM_Point_Type,
EndOfArc AS GM_Point_Type,
byVal dRadius AS Double,
byVal dLengthOfArc AS Double,
Point
AS GM_Point_Type )
Remarks This function is calculating the point with the distance
dDist
from a given point on a circle (the first point of the circle
definition - see predefined structure
GM_Circle_Type
) on the
circle.
Note Used formula: see Appendix, Geodesy Math. Formulas.
Parameters
StartOfArc in
beginning of the arc
EndOfArc in
end of the arc
dRadius in
radius
dLengthOfArc in
arc length clockwise relative to
StartOfArc
are positive
Point out
Calculated point on the arc.
Return Codes
GM_IDENTICAL_PTS
Startpoint
and
endpoint
of
the arc are identical. Calculation is
not possible.
Example Calculate the point in the circle.
DIM Arc1 AS GM_Point_Type
DIM Arc2 AS GM_Point_Type
DIM Point AS GM_Point_Type
'initialize Arc1 and Arc2
GM_CalcPointInLine( Arc1, Arc2, 1.0, Pi, Point )