Surface.ExportToDEM(String, String, Double, ExportDetermineElevationType) Method

Exports the Surface to a DEM file.

Namespace: Autodesk.Civil.DatabaseServices
Assembly: AeccDbMgd (in AeccDbMgd.dll) Version: 13.8.0.280

Syntax

public void ExportToDEM(
	string fileName,
	string coordinateSystemCode,
	double gridSpacing,
	ExportDetermineElevationType deteElevBy
)

Public Sub ExportToDEM ( 
	fileName As String,
	coordinateSystemCode As String,
	gridSpacing As Double,
	deteElevBy As ExportDetermineElevationType
)

public:
void ExportToDEM(
	String^ fileName, 
	String^ coordinateSystemCode, 
	double gridSpacing, 
	ExportDetermineElevationType deteElevBy
)

fileName String: The full file path of the exported file, whose file extension is either .dem for DEM file or .tif for GEOTIFF file.
coordinateSystemCode String: The coordinate zone of the exported surface, using a Map Zone name.
gridSpacing Double: The horizontal spacing for DEM profile points.
deteElevBy ExportDetermineElevationType: Specifies how the elevations of the DEM file are determined from the exported surface.

Exception	Condition
ArgumentException	Thrown when : The fileName is empty. The extension of fileName is not .dem or .tif. The coordinateSystemCode is empty. The gridSpacing is less than or equal to 0.0. The coordinateSystemCode is not supported. The target DEM file already exists and is not writable.
InvalidOperationException	Thrown when there is an Internal error.

If the target DEM file exists, its contents are deleted. If the method fails, the existing file will be empty.
If the drawing has a coordinate system defined, the export uses that drawing coordinate system, and the coordinateSystemCode parameter is ignored.
This version of ExportToDEM() does not specify a custom Null elevation.