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 b7e50fb..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]
 
@@ -173,13 +173,11 @@ class HexaflexagonDiagram(object):
             self.backend.draw_centered_text(tx, ty, corner_text, text_theta, color)
 
     def draw_plan_template(self):
-        x0, y0 = self.plan_origin
         for hexagon in self.hexaflexagon.hexagons:
             for triangle in hexagon.triangles:
-                i, j = self.hexaflexagon.get_triangle_plan_position(triangle)
-                x, y = triangle.calc_plan_coordinates(self.triangle_radius, i, j)
+                x, y = self.get_triangle_center_in_plan(triangle)
                 theta = triangle.get_angle_in_plan()
-                self.draw_triangle_template(triangle, x0 + x, y0 + y, theta)
+                self.draw_triangle_template(triangle, x, y, theta)
 
     def draw_template(self):
         for hexagon in self.hexaflexagon.hexagons: