Changes between Version 40 and Version 41 of WKTRaster/SpecificationWorking02

Timestamp:

09/21/10 08:35:35 (14 years ago)

Author:

pracine

Comment:

—

WKTRaster/SpecificationWorking02

@@ -83 +83 @@
 
 ----
+== '''Objective 2.0.03 - Being able to create a raster as the expression of two rasters''' ==
+
+'''ST_MapAlgebra'''
+
+----
 == '''Objective 2.0.04 - Implement better support for NULL, Empty, !HasNoBand(rast), !HasNoBand(rast, band) and !BandIsNoData rasters in all functions.''' ==
 
@@ -134 +139 @@
 == '''Objective 2.0.05 - Being able to set and get values for part of a raster.''' ==
 
+'''ST_SetValues'''
+
+ TBD
+
 '''ST_Clip'''
 
@@ -165 +174 @@
  This function is necessary to optimize ST_Intersection. The raster to be polygonised before proceeding to a vector intersection should first be clipped to the minimal intersecting area using ST_Clip().
 
+----
+== '''Objective 2.0.06 - Being able to add a band to a raster as a copy of the band of another raster.''' ==
+
+'''ST_AddBand(rast1 raster, rast2 raster, band int, index int)'''
+
+ Copy band of rast2 into rast1 at the specified index.
+
+ This function is useful in a number of plpgsql functions and to optimize ST_MapAlgebra.
+
+