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GeoB
ASIC
Reference Manual 5.Standard Functions
TPS1100-Version 1.30 5-43
5.6.10 GM_CalcDistPointCloth
Description Calculation of the distance point - Clothoid and the base point of
plumb line.
Declaration GM_CalcDistPointCloth(
BA AS GM_Point_Type,
BE AS GM_Point_Type,
Point AS GM_Point_Type,
byVal dA AS Double,
byVal dL AS Double,
dDist AS Double,
dDistAlongSpiral AS Double,
FootPoint
AS GM_Point_Type )
Remarks This function is calculating the distance of one point to the
clothoid and his base point of plumb line in the area of
0 2
< < τ π
/ . Prerequisite that, the Clothoid is placed in the
country-coordinate -system.
Note Used formula: see Appendix, Geodesy Math. Formulas.
Parameters
BA in
beginning of the arc in the
country coordinate system
BE in
end of the arc in the country
coordinate system
Point in
point to be plumbed out in the
country coordinate system
dA in
clothoid - parameter
dL in
arc length [m]
dDist out
distance point - Clothoid [m]
dDistAlongSpiral out
distance along arc
FootPoint out
coordinate of the base point of
foot of a perpendicular
observation
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