trihexaflexagon: improve get_angle_in_plan_relative_to_hexagon()

[flexagon-toolkit.git] / src / flexagon / hexaflexagon_diagram.py

diff --git a/src/flexagon/hexaflexagon_diagram.py b/src/flexagon/hexaflexagon_diagram.py
index 09e8fc9..cdd636b 100755 (executable)
--- a/src/flexagon/hexaflexagon_diagram.py
+++ b/src/flexagon/hexaflexagon_diagram.py
@@ -56,7 +56,7 @@ class HexaflexagonDiagram(object):
             cx = self.x_border + self.hexagon_radius + (2 * self.hexagon_radius + self.x_border) * hexagon.index
             self.hexagons_centers[hexagon.index] = (cx, cy)
 
-            triangles_centers = self.backend.get_regular_polygon(cx, cy, 6, self.triangle_radius)
+            triangles_centers = self.backend.get_regular_polygon(cx, cy, 6, self.triangle_radius, pi / 6)
             for triangle in hexagon.triangles:
                 self.triangles_centers[hexagon.index][triangle.index] = triangles_centers[triangle.index]