TerrainAlongLineComputeTerrainIntersection Method (Cartographic, UnitCartesian, Double, Double, TerrainProvider, Double, Double)

public static Cartographic? ComputeTerrainIntersection(
	Cartographic cartographic,
	UnitCartesian direction,
	double granularity,
	double maximumDistance,
	TerrainProvider terrainProvider,
	double minimumTerrainHeight,
	double maximumTerrainHeight
)

Public Shared Function ComputeTerrainIntersection ( 
	cartographic As Cartographic,
	direction As UnitCartesian,
	granularity As Double,
	maximumDistance As Double,
	terrainProvider As TerrainProvider,
	minimumTerrainHeight As Double,
	maximumTerrainHeight As Double
) As Cartographic?

public:
static Nullable<Cartographic> ComputeTerrainIntersection(
	Cartographic cartographic, 
	UnitCartesian direction, 
	double granularity, 
	double maximumDistance, 
	TerrainProvider^ terrainProvider, 
	double minimumTerrainHeight, 
	double maximumTerrainHeight
)

static member ComputeTerrainIntersection : 
        cartographic : Cartographic * 
        direction : UnitCartesian * 
        granularity : float * 
        maximumDistance : float * 
        terrainProvider : TerrainProvider * 
        minimumTerrainHeight : float * 
        maximumTerrainHeight : float -> Nullable<Cartographic> 

Parameters

cartographic

Type: AGI.Foundation.CoordinatesCartographic
The planetodetic cartographic representation of the location expressed in the reference frame fixed to the ellipsoid specified by the Shape property of the terrainProvider.

direction

Type: AGI.Foundation.CoordinatesUnitCartesian
The direction along which to check for intersection with terrain.

granularity

Type: SystemDouble
The sampling step as a positively valued fraction of the terrain resolution.

maximumDistance

Type: SystemDouble
A positively valued limit on the distance in meters along the indicated direction at which intersection with terrain is no longer checked.

terrainProvider

Type: AGI.Foundation.TerrainTerrainProvider
The terrain provider describing the terrain that is potentially obscuring the path between the two objects.

minimumTerrainHeight

Type: SystemDouble
The minimum height in meters that can be returned by the TerrainProvider's GetHeightRelativeToShape(Double, Double) method. Setting this value lower than necessary will not affect the results, but it will decrease performance. Setting it too high can cause incorrect results. For realistic Earth-based terrain data, DefaultMinimumTerrainHeight is a safe value to use for this parameter.

maximumTerrainHeight

Type: SystemDouble
The maximum height in meters that can be returned by the TerrainProvider's GetHeightRelativeToShape(Double, Double) method. Setting this value higher than necessary will not affect the results, but it will decrease performance. Setting it too low can cause incorrect results. For realistic Earth-based terrain data, DefaultMaximumTerrainHeight is a safe value to use for this parameter.

Return Value

Reference