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This commit is contained in:
abelvm 2016-09-02 14:37:52 +02:00
parent 036a33aced
commit b8ce37eb60
1 changed files with 6 additions and 5 deletions
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11
src/pg/sql/19_contour.sql
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@ -1,5 +1,3 @@
DROP FUNCTION IF EXISTS cdb_contour(geometry[],numeric[],numeric,integer,integer,integer,integer);
CREATE OR REPLACE FUNCTION CDB_Contour(
IN geomin geometry[],
IN colin numeric[],
@ -7,7 +5,7 @@ CREATE OR REPLACE FUNCTION CDB_Contour(
IN intmethod integer,
IN classmethod integer,
IN steps integer,
IN resolution integer DEFAULT -90
IN max_time integer DEFAULT -90
)
RETURNS TABLE(
the_geom geometry,
@ -19,11 +17,14 @@ RETURNS TABLE(
DECLARE
cell_count integer;
tin geometry[];
max_time integer;
resolution integer;
BEGIN
-- calc the optimal number of cells for the current dataset
-- nasty trick to override issue #121
resolution := max_time;
max_time := -1 * resolution;
-- calc the optimal number of cells for the current dataset
SELECT
CASE intmethod
WHEN 0 THEN round(3.7745903782 * max_time - 9.4399210051 * array_length(geomin,1) - 1350.8778213073)