IRasterLayer Interface

Provides access to members that create or modify a raster layer.

Members

	All Properties Methods Inherited Non-inherited	Description
	AreaOfInterest	The default area of interest for the layer.
	BandCount	Number of bands in the layer.
	Cached	Indicates if the layer needs its own display cache.
	ColumnCount	Number of columns in the layer.
	CreateFromDataset	Creates a layer from a RasterDataset object.
	CreateFromFilePath	Creates a layer from a file path to raster data.
	CreateFromRaster	Creates a layer from a Raster object.
	DataFrameExtent	Extent of the dataframe that contains the layer.
	DisplayResolutionFactor	Display resolution factor. Factor value is expressed as a percentage between 0 and 100.
	Draw	Draws the layer to the specified display for the given draw phase.
	FilePath	Filepath of the data source.
	MaximumScale	Maximum scale (representative fraction) at which the layer will display.
	MinimumScale	Minimum scale (representative fraction) at which the layer will display.
	Name	Layer name.
	PrimaryField	Layer's primary field.
	PyramidPresent	Indicates if pyramids are present for the layer.
	Raster	Layer's Raster object.
	Renderer	Layer's renderer.
	RowCount	Number of rows in the layer.
	ShowResolution	Indicates if the raster resolution should be displayed in the Table of Contents.
	ShowTips	Indicates if the layer shows map tips.
	SpatialReference	Spatial reference for the layer.
	SupportedDrawPhases	Supported draw phases.
	TipText	Map tip text at the specified location.
	Valid	Indicates if the layer is currently valid.
	Visible	Indicates if the layer is currently visible.
	VisibleExtent	Visible extent of the layer in the data frame.

Inherited Interfaces

CoClasses that implement IRasterLayer

Remarks

The RasterLayer visualizes all types of raster data supported by ArcGIS except raster catalogs, which must use the RasterCatalogTable and RasterCatalogLayer .

The Raster object obtained from the layer will have had its properties modified by the layer. Therefore, it will not have the extent and cell size of the original dataset. Because these properties have been set, the raster will not be able to use its default settings either. This is because the Raster is used by the RasterLayer to perform resampling, reprojection if necessary, and data type conversion when needed.

The easiest way to access the unmodified Raster is to open a RasterDataset based on the file path from the layer and use the CreateDefaultRaster method to get the desired raster.

A raster layer can be initialized with a path to a disk-based raster dataset, a Raster object, or a RasterDataset object. This example shows how to create a RasterLayer from a file path, Raster (pRaster),or RasterDataset (pRasterDataset).

'Cocreate the new RasterLayer
Dim pRasLyr as IRasterLayer
Set pRasLyr =New RasterLayer
'Initialize one of the following three methods
pRasLyr.CreateFromFilePath "D:\data \dem.bsq"
pRasLyr.CreateFromDataset pRasterDataset
pRasLyr.CreateFromRaster pRaster

See Also

ILayer Interface