Changes between Version 65 and Version 66 of WKTRaster/SpecificationWorking01

Timestamp:

12/16/09 12:02:59 (15 years ago)

Author:

pracine

Comment:

—

WKTRaster/SpecificationWorking01

@@ -190 +190 @@
 '''Function definitions for WKT Raster 0.1.6'''
 
-'''ST_Box2D(raster) -> BOX2D''' - Returns a BOX2D representing the maximum extents of the geometry.
+'''ST_Box2D(raster) -> BOX2D''' - Returns a BOX2D representing the extent of the raster.
+
+ If the raster is rotated, the result is a box2d enclosing the rotated raster.
 
  The only difference with ST_Envelope(raster) is that ST_Box2D(raster) returns a BOX2D, not a geometry.
 
- This function replaces ST_Raster_to_box2d() and should be used for the "raster AS box2d" cast. It should also be used instead of ST_raster_envelope when creating indexes in gdal2wktraster.py (to be tested).
+ This function replaces ST_Raster_to_box2d() and should be used for the "raster AS box2d" cast. It should also be used instead of ST_raster_envelope() when creating indexes in gdal2wktraster.py (to be tested).
 
 '''ST_Envelope(raster) -> polygon geometry''' - Returns the minimum bounding box for the supplied raster, as a geometry. 
 
- If the raser is rotated, the envelope is a non-rotated box enclosing the rotated raster.
+ If the raster is rotated, the envelope is a non-rotated box enclosing the rotated raster.
 
  The only difference with ST_Box2D(raster) is that ST_Envelope(raster) returns a geometry, not a BOX2D.