pgrouting/sql/alpha_shape/_alphaShape.sql at main · PostGraphDB/pgrouting · GitHub

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/*PGR-GNU*****************************************************************

Mail: project@pgrouting.org

------

This program is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2 of the License, or

(at your option) any later version.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program; if not, write to the Free Software

Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

********************************************************************PGR-GNU*/

--------------

-- alpha_shape

--------------

--v3.0

CREATE FUNCTION _pgr_alphaShape(

TEXT, -- edges sql

alpha FLOAT DEFAULT 0,

OUT seq1 BIGINT,

OUT textgeom TEXT)

RETURNS SETOF record

AS 'MODULE_PATHNAME'

LANGUAGE c VOLATILE STRICT;

-- COMMENTS

COMMENT ON FUNCTION _pgr_alphashape(TEXT, FLOAT)

IS 'pgrouting internal function';

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