Changes between Version 96 and Version 97 of WKTRaster/SpecificationWorking01

Timestamp:

Dec 22, 2009, 11:05:37 AM (14 years ago)

Author:

pracine

Comment:

—

WKTRaster/SpecificationWorking01

@@ -300 +300 @@
  This is a set-returning function (SRF). A "wktgeomval " value is a complex type composed of a the wkt representation of a geometry (one for each contiguous group of pixel sharing the same value) and the value associated with this geometry. These values are always returned as a value of type double precision. The shape of each polygon follow pixels edges.
 
- This function should be used with precaution on raster with float pixel type as it could return one "geomval" (or polygon) per pixel. This kind of raster should be reclassified (using the planned ST_Reclassify(raster,...) function) before using ST_AsPolygon().
-
- ST_AsWKTRaster() should not be used directly. Use ST_AsPolygon() instead.
+ This function should be used with precaution on raster with float pixel type as it could return one "geomval" (or polygon) per pixel. This kind of raster should be reclassified (using the planned ST_Reclassify(raster,...) function) before using ST_AsWKTPolygon().
+
+ ST_AsWKTPolygon() should not be used directly. Use ST_AsPolygon() instead.
 
  '''Implementation details'''