
GeoB
ASIC
Reference Manual
5.Standard Functions
TPS1100-Version 1.30
5-73
5.6.31 GM_ConvertVDirection
Description
Conversion of v-directions from one system into the other.
Declaration
GM_ConvertVDirection(
byVal OldSys
AS Integer,
byVal dVOldSys AS Double,
byVal NewSys
AS Integer,
dVNewSys AS Double )
Remarks
This function is converting v-distance-values from one standard
system into the other.
Note
Used formula: see Appendix, Geodesy Math. Formulas.
Parameters
iOldSys
in
standard system of the given v-direction
GM_ZENITH
zenith direction
[rad]
GM_NADIR
nadir
direction[radians]
GM_V_ANGLE_RAD
height angle [rad]
GM_V_ANGLE_
PERCENT
height angle [%]
dVOldSys
in
v-distance to convert
iNewSys
in
standard system of the wanted v-distance
dVNewSys
out
converted v-distance
Return Codes
GM_INVALID_
V_SYSTEM
One of the standard systems was invalid.
There was no conversion. The recovered
value was not defined
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