WCPS_Support interpolation argument in crsTransform()

[Bang Pham Huu]

As Rasql supports more interpolation methods in project() as ​http://doc.rasdaman.org/04_ql-guide.html#the-project-function then WCPS can add interpolation parameter for projection.

Here is WCSP query example:

for c in (test_projection)  return encode(crsTransform(c, 
{ Lat:"http://www.opengis.net/def/crs/EPSG/0/3857", Long:"http://www.opengis.net/def/crs/EPSG/0/3857"},
{#INTERPOLATION_TYPE}), "tiff", "nodata=0")

In addition it should be possible to support interpolation as an argument in some way for WMS, perhaps with a non-standard GetMap parameter.

[Bang Pham Huu]

seem like it can be fixed sooner.

[Dimitar Misev]

The new project() variants support specifying the resampling algorithm: ​http://doc.rasdaman.org/04_ql-guide.html#the-project-function

By default now it's nearest neighbour (as in gdalwarp).

[Bang Pham Huu]

@dmisev: Although the resampleAlgorithm parameter was added to Rasql in #2082 but according to WCPS 1.0 standard, it will need something like this

Example The following expression transforms coverage C (which is assumed to have x and y dimensions)
into the CRS identified by urn:ogc:def:crs:EPSG:6.6:63266405. Linear interpolation with null resistance
“none” is applied to range field red if necessary, to all other range fields the default itenrpolation and
null resistance is applied.

crsTransform( C,
 { x: “ urn:ogc:def:crs:EPSG::63266405”,
 y: “ urn:ogc:def:crs:EPSG::63266405”
 },
  *** { red(linear,none) ***
 } 


interpolationMethod: // taken from WCS [OGC 07-067r5]
 ( interpolationType : nullResistance )

interpolationType: // taken from WCS [OGC 07-067r5] Table I.7
 nearest
 | linear
 | quadratic
 | cubic

nullResistance: // taken from WCS [OGC 07-067r5]
 full
 | none
 | half
 | other

[Bang Pham Huu]

Duplicate with ​http://rasdaman.org/ticket/2212