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fix non-noded intersection between shoreline clipped and non-shoreline clipped geometries by using a safe_intersection function

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This commit is contained in:
John Krauss
2017-03-07 20:38:12 +00:00
parent fd3918b29c
commit deede798e9
7 changed files with 207 additions and 20 deletions
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src/pg/test/expected/40_observatory_utility_test.out
+4
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@@ -21,3 +21,7 @@ t
obs_dumpversion_notnull
t
(1 row)
ERROR: Error performing intersection: TopologyException: found non-noded intersection between LINESTRING (-97.1968 25.9574, -97.1971 25.9576) and LINESTRING (-97.197 25.9575, -97.1972 25.9576) at -97.19699802694231 25.957551976080605
complex_safe_intersection_works
t
(1 row)
src/pg/test/fixtures/drop_fixtures.sql
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+1
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@@ -26,6 +26,7 @@ DROP TABLE IF EXISTS observatory.obs_6c1309a64d8f3e6986061f4d1ca7b57743e75e74;
DROP TABLE IF EXISTS observatory.obs_0310c639744a2014bb1af82709228f05b59e7d3d;
DROP TABLE IF EXISTS observatory.obs_87a814e485deabe3b12545a537f693d16ca702c2;
DROP TABLE IF EXISTS observatory.obs_e32f8e59c7c8861ee5ee4029b3ace2af9a5c9caf;
DROP TABLE IF EXISTS observatory.obs_23cb5063486bd7cf36f17e89e5e65cd31b331f6e;
DROP TABLE IF EXISTS observatory.obs_1ea93bbc109c87c676b3270789dacf7a1430db6c;
DROP TABLE IF EXISTS observatory.obs_b393b5b88c6adda634b2071a8005b03c551b609a;
DROP TABLE IF EXISTS observatory.obs_8e30e6b3792430b410ba5b9e49cdc6a0d404d48f;
src/pg/test/fixtures/load_fixtures.sql
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+146
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File diff suppressed because one or more lines are too long
src/pg/test/sql/40_observatory_utility_test.sql
+12
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@@ -47,3 +47,15 @@ SELECT cdb_observatory._OBS_StandardizeMeasureName('test 343 %% 2 qqq }}{{}}') =
SELECT cdb_observatory.OBS_DumpVersion()
IS NOT NULL AS OBS_DumpVersion_notnull;
-- Should fail to perform intersection
SELECT ST_IsValid(ST_Intersection(
cdb_observatory.OBS_GetBoundaryByID('48061', 'us.census.tiger.county'),
cdb_observatory.OBS_GetBoundaryByID('48061', 'us.census.tiger.county_clipped')
)) AS complex_intersection_fails;
-- Should succeed in intersecting
SELECT ST_IsValid(cdb_observatory.safe_intersection(
cdb_observatory.OBS_GetBoundaryByID('48061', 'us.census.tiger.county'),
cdb_observatory.OBS_GetBoundaryByID('48061', 'us.census.tiger.county_clipped')
)) AS complex_safe_intersection_works;