GetDistanceEx

The method returns the aerial distance between two given coordinates, taking into account the elevation difference.

Implemented only in ICoordSys3.

HRESULT GetDistanceEx(

[in] double X1,

[in] double Y1,

[in] double H1,

[in] double X2,

[in] double Y2,

[in] double H2,

[out, retval] double* Dist)

Parameters:

• X1 – X coordinate of first point.

• Y1 – Y coordinate of first point.

• H1 – Elevation value relative to the terrain database vertical datum base ellipsoid (absolute height), of the first point.

• X2 – X coordinate of second point.

• Y2 – Y coordinate of second point.

• H2 – Elevation value relative to the terrain database vertical datum base ellipsoid (absolute height) of the second point.

• Dist – Returns the calculated distance in meters between the two points.

Return Values:

The return value obtained from the returned HRESULT can be one of the following: