From 02f2ac3e60ac375c4a6748c9553bfdffe3f02f95 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Motiejus=20Jak=C5=A1tys?= Date: Wed, 19 May 2021 22:57:45 +0300 Subject: [PATCH] add safety check --- wm.sql | 3 +++ 1 file changed, 3 insertions(+) diff --git a/wm.sql b/wm.sql index f977904..5ddb216 100644 --- a/wm.sql +++ b/wm.sql @@ -117,6 +117,9 @@ begin select geom from st_dumppoints(bends[i]) order by path[1] asc limit 3 ) into phead; + -- if the bend got too short, stop processing it + exit when array_length(phead, 1) < 3; + -- if inflection angle between ptail[1:3] "large", stop processing this bend exit when abs(st_angle(phead[1], phead[2], phead[3]) - pi) > small_angle;