From f2f1fea0cb5d5fe122cc62a338b3b6513528f313 Mon Sep 17 00:00:00 2001
From: Kaalleen <36401965+kaalleen@users.noreply.github.com>
Date: Sat, 28 Jan 2023 22:33:58 +0100
Subject: remove subpaths with only one node from satins (#2033)

---
 lib/elements/satin_column.py | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

(limited to 'lib/elements')

diff --git a/lib/elements/satin_column.py b/lib/elements/satin_column.py
index 0981e6c3..1841bba1 100644
--- a/lib/elements/satin_column.py
+++ b/lib/elements/satin_column.py
@@ -361,7 +361,10 @@ class SatinColumn(EmbroideryElement):
     @property
     @cache
     def csp(self):
-        return self.parse_path()
+        paths = self.parse_path()
+        # exclude subpaths which are just a point
+        paths = [path for path in paths if len(path) >= 2]
+        return paths
 
     @property
     @cache
@@ -518,8 +521,9 @@ class SatinColumn(EmbroideryElement):
     def validation_errors(self):
         # The node should have exactly two paths with the same number of points - or it should
         # have two rails and at least one rung
-
-        if len(self.rails) < 2:
+        if len(self.csp) < 2:
+            yield TooFewPathsError((0, 0))
+        elif len(self.rails) < 2:
             yield TooFewPathsError(self.shape.centroid)
         elif len(self.csp) == 2:
             if len(self.rails[0]) != len(self.rails[1]):
-- 
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