Description
Returns the altitudes at the specified position array relative to the input reference surface. If a specified position is outside terrain sources, the altitude of 0.0 relative to the default reference ellipsoid (WGS84 for Earth) is used.
Syntax
| [Visual Basic .NET] |
|---|
Public Function GetAltitudeBatch( _
ByVal LatLons As System.Array, _
ByVal AltRef As AgEAltRefType _
) As System.Array
|
Parameters
See Also
Example
Gets the altitude of the terrain at a single location and in batches.
| [C#] |
|---|
IAgScenario scenario = (IAgScenario)root.CurrentScenario;
// If you haven't done so, add the terrain to your scenario (for example .PDTT)
IAgCentralBodyTerrainCollectionElement earthTerrain = scenario.Terrain["Earth"];
earthTerrain.TerrainCollection.Add(terrainFile, AgETerrainFileType.ePDTTTerrainFile);
// Get single altitude
double altitude = earthTerrain.GetAltitude(latitude, longitude, AgEAltRefType.eMSL);
// Get points in batches.
Array specifiedPositions = new object[,]
{
{ 40.0386, -75.5966 },
{ 28.5383, -81.3792 },
{ 37.7749, -122.4194 }
};
Array altitudes = earthTerrain.GetAltitudeBatch(ref specifiedPositions, AgEAltRefType.eWGS84);
// GetAltitudeBatch returns a one-dimensional array of altitude values in the distance unit perference.
int numPoints = altitudes.GetLength(0);
for (int i = 0; i < numPoints; ++i)
{
Console.WriteLine("Latitude={0}, Longitude={1}, Altitude={2}", specifiedPositions.GetValue(i, 0), specifiedPositions.GetValue(i, 1), altitudes.GetValue(i));
}
|
|
Gets the altitude of the terrain at a single location and in batches.
| [Visual Basic .NET] |
|---|
Dim scenario As IAgScenario = DirectCast(root.CurrentScenario, IAgScenario)
' If you haven't done so, add the terrain to your scenario (for example .PDTT)
Dim earthTerrain As IAgCentralBodyTerrainCollectionElement = scenario.Terrain("Earth")
earthTerrain.TerrainCollection.Add(terrainFile, AgETerrainFileType.ePDTTTerrainFile)
' Get single altitude
Dim altitude As Double = earthTerrain.GetAltitude(latitude, longitude, AgEAltRefType.eMSL)
' Get points in batches.
Dim specifiedPositions As Array = New Object(,) {{40.0386, -75.5966}, {28.5383, -81.3792}, {37.7749, -122.4194}}
Dim altitudes As Array = earthTerrain.GetAltitudeBatch(specifiedPositions, AgEAltRefType.eWGS84)
' GetAltitudeBatch returns a one-dimensional array of altitude values in the distance unit perference.
Dim numPoints As Integer = altitudes.GetLength(0)
Dim i As Integer = 0
While i < numPoints
Console.WriteLine("Latitude={0}, Longitude={1}, Altitude={2}", specifiedPositions.GetValue(i, 0), specifiedPositions.GetValue(i, 1), altitudes.GetValue(i))
System.Threading.Interlocked.Increment(i)
End While
|
|
]