# -*- coding: utf-8 -*-
import numpy as np
import pytest
from pyleecan.Classes.CellMat import CellMat
from pyleecan.Classes.Interpolation import Interpolation
from pyleecan.Classes.MeshMat import MeshMat
from pyleecan.Classes.MeshSolution import MeshSolution
from pyleecan.Classes.PointMat import PointMat
from pyleecan.Classes.RefSegmentP1 import RefSegmentP1
from pyleecan.Classes.RefTriangle3 import RefTriangle3
[docs]@pytest.mark.MeshSol
def test_line():
DELTA = 1e-10
mesh = MeshMat()
mesh.cell["line"] = CellMat(nb_pt_per_cell=2)
mesh.point = PointMat()
mesh.point.add_point(np.array([0, 0]))
mesh.point.add_point(np.array([1, 0]))
mesh.point.add_point(np.array([0, 1]))
mesh.add_cell(np.array([0, 1]), "line")
mesh.add_cell(np.array([0, 2]), "line")
mesh.add_cell(np.array([1, 2]), "line")
c_line = mesh.cell["line"]
c_line.interpolation = Interpolation()
c_line.interpolation.ref_cell = RefSegmentP1()
meshsol = MeshSolution()
meshsol.mesh = [mesh]
# This point is inside
test_pt = np.array([0.7, 0])
sol = 0
cells = mesh.find_cell(test_pt, 1)[0][1]
testA = np.sum(abs(cells - sol))
msg = "Wrong result: returned " + str(cells) + ", expected: " + str(sol)
assert testA == pytest.approx(0, abs=DELTA), msg
# This point is outside but in the error margin, so it is considered "inside"
test_pt = np.array([0.0001, 0.4])
sol = 1
cells = mesh.find_cell(test_pt, 1)[0][1]
testA = np.sum(abs(cells - sol))
msg = "Wrong result: returned " + str(cells) + ", expected: " + str(sol)
assert testA == pytest.approx(0, abs=DELTA), msg
# This point is outside any element, so it must return None
test_pt = np.array([0.1, 0.4])
cells = mesh.find_cell(test_pt, 1)
testA = cells == [None]
msg = "Wrong result: returned " + str(cells) + ", expected: " + str([None])
assert testA is True
[docs]@pytest.mark.MeshSol
def test_triangle3():
DELTA = 1e-10
mesh = MeshMat(dimension=2)
mesh.point = PointMat()
mesh.point.add_point(np.array([0, 0]))
mesh.point.add_point(np.array([2, 0]))
mesh.point.add_point(np.array([2, 2]))
mesh.point.add_point(np.array([0, 2]))
mesh.cell["triangle"] = CellMat(nb_pt_per_cell=3)
mesh.add_cell(np.array([0, 1, 2]), "triangle")
mesh.add_cell(np.array([0, 3, 2]), "triangle")
c_tgl = mesh.cell["triangle"]
c_tgl.interpolation = Interpolation()
c_tgl.interpolation.ref_cell = RefTriangle3()
meshsol = MeshSolution()
meshsol.mesh = [mesh]
# This point is inside cell 0
test_pt = np.array([1, 0.5])
sol = 0
cells = mesh.find_cell(test_pt, 1)[0][1]
testA = np.sum(abs(cells - sol))
msg = "Wrong result: returned " + str(cells) + ", expected: " + str(sol)
assert testA == pytest.approx(0, abs=DELTA), msg
# This point is inside cell 1
test_pt = np.array([0.5, 1])
sol = 1
cells = mesh.find_cell(test_pt, 1)[0][1]
testA = np.sum(abs(cells - sol))
msg = "Wrong result: returned " + str(cells) + ", expected: " + str(sol)
assert testA == pytest.approx(0, abs=DELTA), msg
# This point is outside but in the error margin, so it is considered "inside"
test_pt = np.array([-0.0001, 0.4])
sol = 1
cells = mesh.find_cell(test_pt, 1)[0][1]
testA = np.sum(abs(cells - sol))
msg = "Wrong result: returned " + str(cells) + ", expected: " + str(sol)
assert testA == pytest.approx(0, abs=DELTA), msg
# This point is outside any element, so it must return None
test_pt = np.array([-0.1, 10])
cells = mesh.find_cell(test_pt, 1)
testA = cells == [None]
msg = "Wrong result: returned " + str(cells) + ", expected: " + str([None])
assert testA is True
if __name__ == "__main__":
test_line()
test_triangle3()
