From 8567643ab6d876d0637796dd552e955e2e409f8e Mon Sep 17 00:00:00 2001
From: Paul McCarthy <pauldmccarthy@gmail.com>
Date: Fri, 19 Jan 2018 15:04:41 +0000
Subject: [PATCH] Unit test for TriangleMesh.planeIntersection
---
tests/test_mesh.py | 80 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 80 insertions(+)
diff --git a/tests/test_mesh.py b/tests/test_mesh.py
index 57e184065..a08b89d23 100644
--- a/tests/test_mesh.py
+++ b/tests/test_mesh.py
@@ -221,6 +221,15 @@ def test_trimesh_no_trimesh():
assert locs.size == 0
assert tris.size == 0
+ verts, idxs, dists = mesh.nearestVertex([[0, 0, 0]])
+ assert verts.size == 0
+ assert idxs.size == 0
+ assert dists.size == 0
+
+ lines, faces = mesh.planeIntersection([0, 0, 1], [0, 0, 0])
+ assert lines.size == 0
+ assert faces.size == 0
+
def test_trimesh():
@@ -271,3 +280,74 @@ def test_nearestVertex():
assert np.all(np.isclose(nverts, verts))
assert np.all(np.isclose(nidxs, np.arange(len(verts))))
assert np.all(np.isclose(ndists, np.sqrt(3)))
+
+
+def test_planeIntersection():
+
+ verts = np.array(CUBE_VERTICES)
+ triangles = np.array(CUBE_TRIANGLES_CCW)
+ mesh = fslmesh.TriangleMesh(verts, triangles)
+
+ normal = [0, 0, 1]
+ origin = [0, 0, 0]
+
+ lines, faces = mesh.planeIntersection(normal, origin)
+ lines2, faces2, dists = mesh.planeIntersection(normal,
+ origin,
+ distances=True)
+
+ expLines = np.array([
+ [[-1, -1, 0],
+ [ 0, -1, 0]],
+ [[ 1, -1, 0],
+ [ 0, -1, 0]],
+
+ [[ 1, 1, 0],
+ [ 0, 1, 0]],
+
+ [[-1, 1, 0],
+ [ 0, 1, 0]],
+
+ [[-1, 0, 0],
+ [-1, -1, 0]],
+
+ [[-1, 0, 0],
+ [-1, 1, 0]],
+
+ [[ 1, 0, 0],
+ [ 1, -1, 0]],
+
+ [[ 1, 0, 0],
+ [ 1, 1, 0]]])
+
+ expFaces = np.array([ 4, 5, 6, 7, 8, 9, 10, 11])
+ expDists = np.array([
+ [[0.5, 0, 0.5],
+ [0, 0.5, 0.5]],
+
+ [[0, 0.5, 0.5],
+ [0.5, 0.5, 0]],
+
+ [[0, 0.5, 0.5],
+ [0.5, 0.5, 0]],
+
+ [[0.5, 0.5, 0],
+ [0.5, 0, 0.5]],
+
+ [[0, 0.5, 0.5],
+ [0.5, 0.5, 0]],
+
+ [[0.5, 0, 0.5],
+ [0, 0.5, 0.5]],
+
+ [[0.5, 0.5, 0],
+ [0.5, 0, 0.5]],
+
+ [[0.5, 0, 0.5],
+ [0, 0.5, 0.5]]])
+
+ assert np.all(np.isclose(lines, lines2))
+ assert np.all(np.isclose(faces, faces2))
+ assert np.all(np.isclose(lines, expLines))
+ assert np.all(np.isclose(faces, expFaces))
+ assert np.all(np.isclose(dists, expDists))
--
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