Changes between Version 117 and Version 118 of WKTRaster/SpecificationWorking01

Timestamp:

Apr 1, 2010, 8:02:03 AM (14 years ago)

Author:

pracine

Comment:

—

WKTRaster/SpecificationWorking01

@@ -537 +537 @@
       DZ: After discussion, will drop the variant that copies the pixel size from a raster parameter.
 
-'''ST_SetNoDataValue(raster, band, value)'''
+'''ST_SetBandNoDataValue(raster, band, value)'''
  Set the data value that corresponds to NODATA in the given raster and band.
 
-'''ST_HasNoDataValue(raster, band)'''
+'''ST_BandHasNoDataValue(raster, band)'''
  Return true if the value stored as a NODATA value must be interpreted as a real NODATA value.
+
+'''ST_SetBandHasNoDataValue(raster, band)'''
+ Set the NODATA value as a real NODATA value.
 
 '''ST_SetGeoReference(raster, georef)'''
@@ -550 +553 @@
  If this method does not recieve a georeference string with 6 parameters (or if one of the parameters is not numeric), it raises an exception "st_setgeoreference requires a string with 6 floating point values". If this method recieves a null raster, it does nothing, and returns a null raster.
 
-'''ST_SetRotation(raster, rotation)'''
- Variant 1: ST_SetRotation(raster, rotationx, rotation y)
-
- ~~Variant 2: ST_SetRotation(raster, raster)~~
-
- Set the rotation of the raster. The base method sets the X and Y rotation to the same value. The first variant sets the rotation to the individually specified x and y rotations. ~~The second variant sets the rotation to the rotation taken from the 2nd raster parameter.~~
+'''ST_SetSkew(raster, skewx, skewy)'''
+ Variant 1: ST_SetSkew(raster, skew)
+
+ Set the skewx and the skewy of the raster's georeference. Variant 1 sets the X and Y skew to the same value.
 
  '''Open Question:'''
-  DZ: Should there be corresponding methods for X/Y rotations in addition to this general method?  ST_SetXRotation(...) and ST_SetYRotation(...)?
+  DZ: Should there be corresponding methods for X/Y skews in addition to this general method?  ST_SetSkewX(...) and ST_SetSkewY(...)?
     DZ: No, follow the pattern for ST_SetPixelSize
+
+'''ST_SetRotation(raster, angle)'''
+
+ Set the rotation of the raster. This method actually derive values for pixelsizex, pixelsizey, skewx and skewy based on the provided rotation angle.
+
+ '''Open Question:'''
+  PR: The angle should be provided in radian or in degree?
 
 '''ST_SetUpperLeft(raster, left, top)'''