CmrgQuery.BoundsPolygons Property
Gets or sets a flag indicating if the dataset should generate coverage polygons.
Syntax
public System.Boolean BoundsPolygons { get; set; }Property Value
Default: false
True if bounding polygons are created, False otherwise.
Remarks
If this value is True, a polygon feature is returned for each raster tile. This can be used to study e.g. the bounds and extent for each dataset in a multi-resolution CMRG distribution by setting the query ReadRasters property to False.
The attributes set on each polygon are:
fileName (string): The image file name without search path
fullPath (string): The image file name including search path
path (string): The search path (directory) of the image file without file name
dataSet (string): The sub-dataset name
primaryTile (bool): True for tiles that generate sub-tiles the first time raster data is requested. The only way to retrieve primary tiles is to set the ReadRasters property to False to avoid loading sub-tiles the first time a tile is accessed.
tileIndex (integer): The internal index of the tile, starting with 0 at the northwest corner.
cellWidth (double): The cell width of the raster, in the dataset coordinate reference system.
cellHeight (double): The cell height of the raster, in the dataset coordinate reference system.
scale (double): The scale of the map.
ellipsoid (string): The CMRG code for the ellipsoid.
datum (string): The CMRG code for the geodetic datum.
projection (string): The CMRG code for the projection.
The last four attributes are read from the CMRG header file for the raster. Please see the CMRG specification for possible values of the ellipsoid, datum and projection attributes.
Platforms
Windows, Linux, Android