User`s guide

4-3
Class Name Coordinate System
Type
RasterInterpretationCell Dimensions
map.rasterref.GeographicPostingsReferencegeographic postings SampleSpacingInLatitude
SampleSpacingInLongitude
map.rasterref.MapCellsReferenceplanar cells CellExtentInWorldX
CellExtentInWorldY
map.rasterref.MapPostingsReferenceplanar postings SampleSpacingInWorldX
SampleSpacingInWorldY
These new properties are unsigned because the existing ColumnStartFrom and
RowStartFrom properties already provide directional information.
These new properties make the DeltaLat, DeltaLon, DeltaX, and DeltaY properties
redundant. These older properties still exist but are hidden.
The four new classes replace the two existing classes
spatialref.GeoRasterReference and spatialref.MapRasterReference.
georasterref, maprasterref, and worldfileread functions
return new types
The georasterref and maprasterref functions return new types of objects, depending
on the value of the RasterInterpretation parameter. By default, if you do not specify
this parameter, the functions return an object with the raster interpretation cells.
The worldfileread function returns new types of objects, depending on the value of the
coordinateSystemType parameter.
The following table lists these classes.
Function Type Returned When
RasterInterpretation Is 'cells'
Type Returned When
RasterInterpretation Is
'postings'
georasterref map.rasterref.GeographicCellsReferencemap.rasterref.GeographicPostingsReference
maprasterref map.rasterref.MapCellsReferencemap.rasterref.MapPostingsReference
worldfileread(___,’geographic’,___)map.rasterref.GeographicCellsReferencen/a
worldfileread(___,’planar’,___)map.rasterref.MapCellsReferencen/a