RasterTerrainProviderGetHeight Method (Double, Double, RasterTerrainInterpolator) |
Gets the interpolated height of the terrain at the specified longitude and latitude using the
specified
TerrainInterpolatorTData.
Namespace:
AGI.Foundation.Terrain
Assembly:
AGI.Foundation.TerrainReaders (in AGI.Foundation.TerrainReaders.dll) Version: 24.3.420.0 (24.3.420.0)
Syntax public double GetHeight(
double longitude,
double latitude,
RasterTerrainInterpolator interpolator
)
Public Function GetHeight (
longitude As Double,
latitude As Double,
interpolator As RasterTerrainInterpolator
) As Double
public:
double GetHeight(
double longitude,
double latitude,
RasterTerrainInterpolator^ interpolator
)
member GetHeight :
longitude : float *
latitude : float *
interpolator : RasterTerrainInterpolator -> float
Parameters
- longitude
- Type: SystemDouble
The longitude, in radians.
Requesting a height for a longitude less than -π or greater than π will always return NaN.
- latitude
- Type: SystemDouble
The latitude, in radians.
Requesting a height for a latitude less than -π/2 or greater than π/2 will always return NaN.
- interpolator
- Type: AGI.Foundation.TerrainRasterTerrainInterpolator
The RasterTerrainInterpolator to use to interpolate heights for points that do not fall precisely on a post.
Return Value
Type:
Double
The height, in meters, or
NaN if the height is not available at the requested longitude and latitude.
Remarks
If HeightReference is ReferenceSurface,
the returned height is relative to the surface specified by the ReferenceSurface property.
If HeightReference is Shape,
the returned height is relative to the ellipsoid specified by the Shape property.
This method may return NaN if the requested longitude and latitude are outside
the terrain region or if the terrain data indicates that the height is unknown.
It is safe to call this method from multiple threads simultaneously.
See Also