def test_easy4(self):
ul = [[0, 1]]
pts = [[0., 0.], [1., 0.], [0.2, 0.1], [0.5, 0.1], [0.8, 0.1],
[0.2, -0.1], [0.5, -0.1], [0.8, -0.1]]
tri = PolyTri(pts, ul, holes=False, delaunay=True)
print("#############", tri.get_tris())
plt.triplot(*np.array(pts).T, tri.get_tris())
plt.show()
def test_easy_1(self):
ul = [[1, 2, 3, 4, 0, 1]]
pts = [[0., 0.], [0.2, 0.1], [0.5, 0.1], [0.8, 0.1], [1., 0.]]
tri = PolyTri(pts, ul, delaunay=True)
plt.triplot(*np.array(pts).T, tri.get_tris())
print(tri.get_tris())
for i, p in enumerate(pts):
plt.annotate(str(i), p)
plt.show()
def test_profile(self):
profile = [
0, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7,
6, 5, 4, 3, 2, 1, 0
]
hole = [24, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24]
hole.reverse()
pts = np.array([[1., 0.], [0.90196078, 0.01922532],
[0.80392157, 0.0377041], [0.70588235, 0.05526607],
[0.60784314, 0.07167488], [0.50980392, 0.08654832],
[0.41176471, 0.09930623], [0.31372549, 0.10875978],
[0.21568627, 0.11197072], [0.12254902, 0.10145591],
[0.05446623, 0.07889333], [0.01361656, 0.04499772],
[0., 0.], [0.01361656, -0.02548616],
[0.05446623, -0.04430561], [0.12254902, -0.05642389],
[0.21568627, -0.06297434], [0.31372549, -0.0661538],
[0.41176471, -0.06701299], [0.50980392, -0.06625902],
[0.60784314, -0.0629272], [0.70588235, -0.05471569],
[0.80392157, -0.04154998], [0.90196078, -0.02334161],
[0.22404773, 0.02395152], [0.21754519, 0.04396428],
[0.20052133, 0.05633284], [0.17947867, 0.05633284],
[0.16245481, 0.04396428], [0.15595227, 0.02395152],
[0.16245481, 0.00393877], [0.17947867, -0.00842979],
[0.20052133, -0.00842979], [0.21754519, 0.00393877]])
tri = PolyTri(pts.tolist(), [profile, hole], delaunay=True, holes=True)
plt.triplot(*pts.T, tri.get_tris())
for i, p in enumerate(pts):
plt.annotate(str(i), p)
plt.show()
def test_easy_5(self):
pts = [[0, 0], [1, 2], [0, 1], [-1, 2]]
tri = PolyTri(pts,
boundaries=[[0, 3, 2, 1, 0], [4, 5, 6, 7, 4]],
borders=[0],
delaunay=True,
holes=True)
plt.triplot(*np.array(pts).T, tri.get_tris())
for i, p in enumerate(pts):
plt.annotate(str(i), p)
plt.show()
def test_ellipse(self):
phi = np.linspace(0, np.pi * 2, 200)[:-1]
outer_pts = np.array([np.cos(phi), np.sin(phi)]).T
inner_pts = copy.copy(outer_pts)
outer_pts *= np.array([1., 1.])
inner_pts *= 0.5
pts = np.array(list(inner_pts) + list(outer_pts))
tri = PolyTri(pts.tolist(), [list(range(len(inner_pts))) + [0]],
delaunay=True,
holes=True)
plt.figure(figsize=(10, 10))
plt.triplot(*pts.T, tri.get_tris())
plt.show()
def test_constraint_edge(self):
n = 3
x = np.linspace(0, 1, n)
y = np.array([0] * n)
pts = np.array([x, y]).T
pts_upper = pts[1:-1].copy()
pts_upper[:, 1] += 0.1
pts[1:-1, 1] -= 0.1
cb = [[0, n - 1]]
additional_pts = np.array([[-1., 0], [2, 0.]])
pts = np.array(list(pts) + list(pts_upper) + list(additional_pts))
tri = PolyTri(pts.tolist(), delaunay=True)
plt.triplot(*pts.T, tri.get_tris())
for i, p in enumerate(pts):
plt.annotate(str(i), p)
plt.show()
def test_easy3(self):
pts = [[0., 0.], [0.2, 0.5], [0.4, 0.7], [0.6, 0.7], [0.8, 0.5],
[1.0, 0.]]
tri = PolyTri(pts, holes=False, delaunay=False)
plt.triplot(*np.array(pts).T, tri.get_tris())
plt.show()
def test_easy_2(self):
pts = [[-1, 0], [1, 0], [0., 0.5], [0., -0.5]]
edge = [[0, 1]]
tri = PolyTri(pts, edge, delaunay=True)
plt.triplot(*np.array(pts).T, tri.get_tris())
plt.show()