leftovers and docs

doc/08_interpolation.md

@@ -37,6 +37,9 @@ Function to interpolate a numeric attribute of a point in a scatter dataset of p
 |-------------|------|-------------|
 | value  | numeric | Interpolated value at the given point, `-888.888` if the given point is out of the boundaries of the source points set |
 
+Default values:
+* -888.888: when using Barycentric, the target point is out of the realm of the input points
+* -777.777: asking for a method not available
 
 #### Example Usage
 

src/pg/sql/08_interpolation.sql

@@ -1,7 +1,7 @@
 -- 0: nearest neighbor(s)
 -- 1: barymetric
 -- 2: IDW
--- 3: krigin
+-- 3: krigin ---> TO DO
 
 
 CREATE OR REPLACE FUNCTION CDB_SpatialInterpolation(
@@ -52,7 +52,7 @@ DECLARE
     vc numeric;
     output numeric;
 BEGIN
-    output :=  -999.999;
+    -- output :=  -999.999;
 
     -- nearest neighbors
     -- p1: limit the number of neighbors, 0-> closest one
@@ -133,7 +133,7 @@ BEGIN
     -- krigin
     ELSIF method = 3 THEN
 
-
+    --  TO DO
 
     END IF;