Provides access to members that control a PixelBlock.
Members
Name | Description | |
---|---|---|
BytesPerPixel | The number of bytes per pixel for the PixelBlock. | |
GetVal | The value for a specified pixel. | |
Height | The height of the PixelBlock in pixels. | |
PixelType | The pixel type of the PixelBlock. | |
Planes | The number of pixel arrays contained in the PixelBlock. | |
SafeArray | A variant SafeArray of pixels for a specified plane. | |
Width | The width of the PixelBlock in pixels. |
IPixelBlock.BytesPerPixel Property
The number of bytes per pixel for the PixelBlock.
Public ReadOnly Property BytesPerPixel As Integer
public int BytesPerPixel {get;}
IPixelBlock.GetVal Method
The value for a specified pixel.
Public Function GetVal ( _
ByVal plane As Integer, _
ByVal X As Integer, _
ByVal Y As Integer _
) As Object
public object GetVal (
int plane,
int X,
int Y
);
IPixelBlock.Height Property
The height of the PixelBlock in pixels.
Public ReadOnly Property Height As Integer
public int Height {get;}
IPixelBlock.PixelType Property
The pixel type of the PixelBlock.
Public Function get_PixelType ( _
ByVal plane As Integer _
) As rstPixelType
Public Sub set_PixelType ( _
ByVal plane As Integer, _
ByVal val As rstPixelType _
)
public rstPixelType get_PixelType (
int plane
);
public void set_PixelType (
int plane,
rstPixelType val
);
IPixelBlock.Planes Property
The number of pixel arrays contained in the PixelBlock.
Public ReadOnly Property Planes As Integer
public int Planes {get;}
IPixelBlock.SafeArray Property
A variant SafeArray of pixels for a specified plane.
Public Function get_SafeArray ( _
ByVal plane As Integer _
) As Object
Public Sub set_SafeArray ( _
ByVal plane As Integer, _
ByVal val As Object _
)
public object get_SafeArray (
int plane
);
public void set_SafeArray (
int plane,
object val
);
IPixelBlock.Width Property
The width of the PixelBlock in pixels.
Public ReadOnly Property Width As Integer
public int Width {get;}
Classes that implement IPixelBlock
Classes | Description |
---|---|
PixelBlock (esriDataSourcesRaster) | Esri PixelBlock, a container of pixel data. |
Remarks
The Height and Width properties return the number of rows and columns in the PixelBlock.
The Planes argument returns the number of bands in the PixelBlock.
The PixelType property specifies the data type and bit depth of the pixels in the specified band.The SafeArray property specifies the variant SafeArray for the specified band. At ArcGIS 9.0 and later, this property returns SafeArray by value, not by reference like it does in ArcGIS 8.x. Your application, if only reads pixel values from SafeArray, will not be affected by this change. However, if your application involves modifying and writing pixel block to the band, you might experience a different behavior. The recommended fix is to use IPixelBlock3::PixelDataByRef method.
The GetVal method returns an individual value for the pixel specified by the band and pixel location input.