ProjectParameters.RasterBitdepthExtensionAllowed Property
Gets or sets a flag indicating if the raster format may be changed to accommodate a new undefined value.
Syntax
public System.Boolean RasterBitdepthExtensionAllowed { get; set; }Property Value
Default: false
True if the raster format may be changed; False if the existing format must be kept.
Remarks
This property only make sense when reprojecting integer or float rasters without a specified undefined value.
When a raster is reprojected, the result will usually contain undefined pixels along the edges. This property specifies how the cell values for these pixels are chosen.
If the original raster already has an undefined value, than that will be used. Otherwise, the highest possible cell value will be used, which may not be correct in all cases. However, if this property is True, the output format will be changed to make room for a new undefined value. The most common case would be that 8-bit rasters are expanded to 16 bits.
This property is used only when reprojection is done explicitly from application code that has a raster feature and calls the method
Feature.ProjectTo(crs, projectParameters)
If the application calls the simpler overload
Feature.ProjectTo(crs)
then the default value will be used, so bit-depth extension will be forbidden.
However, if the reprojection is done by a ProjectOperator, or if reprojection occurs automatically before drawing or for other reasons, then bit-depth extension will be allowed.
Platforms
Windows, Linux, Android