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Snap to grid

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Motiejus Jakštys 2021-02-28 16:52:10 +02:00
parent 2c1211fd57
commit 485e7b1512
1 changed files with 3 additions and 1 deletions
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IV/tests.sql
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@ -12,10 +12,12 @@ end $$ LANGUAGE plpgsql;
drop table if exists figures;
create table figures (name text, way geometry);
-- to "normalize" a new line:
-- select st_astext(st_snaptogrid(st_transscale(geometry, 80, 130, .3, .3), 1)) from f;
insert into figures (name, way) values ('fig3',ST_GeomFromText('LINESTRING(0 0,12 0,13 4,20 2,20 0,32 0,33 10,38 16,43 15,44 10,44 0,60 0)'));
insert into figures (name, way) values ('fig3-1',ST_GeomFromText('LINESTRING(0 0,12 0,13 4,20 2,20 0,32 0,33 10,38 16,43 15,44 10,44 0)'));
insert into figures (name, way) values ('fig5',ST_GeomFromText('LINESTRING(0 39,19 52,27 77,26 104,41 115,49 115,65 103,65 75,53 45,63 15,91 0)'));
insert into figures (name, way) values ('fig6',ST_GeomFromText('LINESTRING(84 46,91 59,114 63,122 79,116 91,109 93,105 106,117 118,136 107,135 76,120 44,125 38,141 38,146 31)'));
insert into figures (name, way) values ('fig6',ST_GeomFromText('LINESTRING(84 47,91 59,114 64,122 80,116 92,110 93,106 106,117 118,136 107,135 76,120 45,125 39,141 39,147 32)'));
insert into figures (name, way) values ('inflection-1',ST_GeomFromText('LINESTRING(110 24,114 20,133 20,145 15,145 0,136 5,123 7,114 7,111 2)'));
-- DETECT BENDS