1 | -- |
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2 | -- Copyright (c) 2005 Sylvain Pasche, |
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3 | -- 2006-2007 Anton A. Patrushev, Orkney, Inc. |
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4 | -- |
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5 | -- This program is free software; you can redistribute it and/or modify |
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6 | -- it under the terms of the GNU General Public License as published by |
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7 | -- the Free Software Foundation; either version 2 of the License, or |
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8 | -- (at your option) any later version. |
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9 | -- |
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10 | -- This program is distributed in the hope that it will be useful, |
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11 | -- but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 | -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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13 | -- GNU General Public License for more details. |
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14 | -- |
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15 | -- You should have received a copy of the GNU General Public License |
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16 | -- along with this program; if not, write to the Free Software |
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17 | -- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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18 | -- |
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19 | |
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20 | ----------------------------------------------------------------------- |
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21 | -- Core function for driving distance. |
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22 | -- The sql should return edge and vertex ids. |
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23 | ----------------------------------------------------------------------- |
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24 | CREATE OR REPLACE FUNCTION driving_distance(sql text, source_id integer, |
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25 | distance float8,directed boolean, has_reverse_cost boolean) |
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26 | RETURNS SETOF path_result |
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27 | AS '$libdir/librouting_dd' |
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28 | LANGUAGE 'C' IMMUTABLE STRICT; |
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29 | |
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30 | ----------------------------------------------------------------------- |
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31 | -- Core function for alpha shape computation. |
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32 | -- The sql should return vertex ids and x,y values. Return ordered |
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33 | -- vertex ids. |
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34 | ----------------------------------------------------------------------- |
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35 | CREATE OR REPLACE FUNCTION alphashape(sql text) |
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36 | RETURNS SETOF vertex_result |
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37 | AS '$libdir/librouting_dd' |
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38 | LANGUAGE 'C' IMMUTABLE STRICT; |
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