From fd0b848f1a4a1f7846096a2ee753b95bebc153b6 Mon Sep 17 00:00:00 2001
From: Paul McCarthy <pauldmccarthy@gmail.com>
Date: Fri, 12 Apr 2019 15:22:35 +0100
Subject: [PATCH] TEST: Test Mesh with vertex sets needing different winding
orders
---
tests/test_mesh.py | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/tests/test_mesh.py b/tests/test_mesh.py
index 8b97bfa1c..20ff3cdb7 100644
--- a/tests/test_mesh.py
+++ b/tests/test_mesh.py
@@ -417,3 +417,29 @@ def test_planeIntersection():
assert lines.shape == (0, 2, 3)
assert faces.shape == (0, )
assert dists.shape == (0, 2, 3)
+
+
+def test_mesh_different_winding_orders():
+
+ verts1 = CUBE_VERTICES
+ verts2 = -CUBE_VERTICES
+ tris = CUBE_TRIANGLES_CCW
+ trisfixed = CUBE_TRIANGLES_CW
+
+ mnofix = fslmesh.Mesh(tris)
+ mfix = fslmesh.Mesh(tris)
+
+ mnofix.addVertices(verts1, key='v1', fixWinding=False)
+ mnofix.addVertices(verts2, key='v2', fixWinding=False)
+ mfix .addVertices(verts1, key='v1', fixWinding=True)
+ mfix .addVertices(verts2, key='v2', fixWinding=True)
+
+ mnofix.vertices = 'v1'
+ assert np.all(mnofix.indices == tris)
+ mnofix.vertices = 'v2'
+ assert np.all(mnofix.indices == tris)
+
+ mfix.vertices = 'v1'
+ assert np.all(mfix.indices == tris)
+ mfix.vertices = 'v2'
+ assert np.all(mfix.indices == trisfixed)
--
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