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Motiejus Jakštys 2021-04-06 07:02:46 +03:00
parent adf8c481f0
commit f824c532ab
2 changed files with 14 additions and 13 deletions
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14
IV/tests.sql
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@ -10,6 +10,17 @@ begin
end if;
end $$ LANGUAGE plpgsql;
drop function if exists dbg_geomsummary;
create function dbg_geomsummary(geoms geometry[], OUT output text) as $$
declare i int4;
begin
output = format('len: %s;', array_length(geoms, 1));
for i in 1..array_length(geoms, 1) loop
output = output || format(' %s:%s;', i, st_astext(geoms[i]));
end loop;
end
$$ language plpgsql;
-- to preview this somewhat conveniently in QGIS:
-- stage || '_' || name || ' gen:' || coalesce(gen, 'Ø') || ' nbend:' || lpad(nbend, 2, '0')
drop table if exists debug_wm;
@ -33,7 +44,8 @@ insert into figures (name, way) values ('fig6-combi',
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)'));
insert into figures (name, way) values ('multi-island',ST_GeomFromText('MULTILINESTRING((-15 10,-10 10,-5 11,0 11,5 11,10 10,11 9,13 10,15 9),(-5 11,-2 15,0 16,2 15,5 11))'));
-- Run ST_SimplifyWM in debug mode
-- Run ST_SimplifyWM in debug mode, so `debug_wm` is populated. That table
-- is used for geometric assertions later in the file.
drop table if exists demo_wm;
create table demo_wm (name text, i bigint, way geometry);
insert into demo_wm (name, way) select name, ST_SimplifyWM(way, name) from figures;

11
IV/wm.sql
View File

@ -415,14 +415,3 @@ begin
end if;
end
$$ language plpgsql;
drop function if exists dbg_geomsummary;
create function dbg_geomsummary(geoms geometry[], OUT output text) as $$
declare i int4;
begin
output = format('len: %s;', array_length(geoms, 1));
for i in 1..array_length(geoms, 1) loop
output = output || format(' %s:%s;', i, st_astext(geoms[i]));
end loop;
end
$$ language plpgsql;