Indexing fix (#1163)

* Indexing fix * Test for tessellate * black fix
CadQuery · Oct 4, 2022 · d5806e3 · d5806e3
1 parent e4eac12
commit d5806e3
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diff --git a/cadquery/occ_impl/shapes.py b/cadquery/occ_impl/shapes.py
@@ -1218,7 +1218,7 @@ def tessellate(
             vertices += [
                 Vector(v.X(), v.Y(), v.Z())
                 for v in (
-                    poly.Node(i).Transformed(Trsf) for i in range(1, poly.NbNodes())
+                    poly.Node(i).Transformed(Trsf) for i in range(1, poly.NbNodes() + 1)
                 )
             ]
 

diff --git a/tests/test_exporters.py b/tests/test_exporters.py
@@ -350,3 +350,10 @@ def test_assy_vtk_rotation(tmpdir):
                 break
 
     assert matched_rot
+
+
+def test_tessellate(box123):
+
+    verts, triangles = box123.val().tessellate(1e-6)
+    assert len(verts) == 24
+    assert len(triangles) == 12