How to use the pygalmesh.Polygon2D function in pygalmesh

To help you get started, we’ve selected a few pygalmesh examples, based on popular ways it is used in public projects.

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nschloe / pygalmesh / test / test_volume_mesh.py View on Github

def test_extrude_rotate():
    p = pygalmesh.Polygon2D([[-0.5, -0.3], [0.5, -0.3], [0.0, 0.5]])
    edge_size = 0.1
    domain = pygalmesh.Extrude(p, [0.0, 0.0, 1.0], 0.5 * 3.14159265359, edge_size)
    mesh = pygalmesh.generate_mesh(
        domain, cell_size=0.1, edge_size=edge_size, verbose=False
    )

    tol = 1.0e-3
    assert abs(max(mesh.points[:, 0]) - 0.583012701892) &lt; tol
    assert abs(min(mesh.points[:, 0]) + 0.5) &lt; tol
    assert abs(max(mesh.points[:, 1]) - 0.5) &lt; tol
    assert abs(min(mesh.points[:, 1]) + 0.583012701892) &lt; tol
    assert abs(max(mesh.points[:, 2]) - 1.0) &lt; tol
    assert abs(min(mesh.points[:, 2]) + 0.0) &lt; tol

    vol = sum(helpers.compute_volumes(mesh.points, mesh.cells["tetra"]))
    assert abs(vol - 0.4) &lt; 0.05

nschloe / pygalmesh / test / test_volume_mesh.py View on Github

def test_extrude():
    p = pygalmesh.Polygon2D([[-0.5, -0.3], [0.5, -0.3], [0.0, 0.5]])
    domain = pygalmesh.Extrude(p, [0.0, 0.3, 1.0])
    mesh = pygalmesh.generate_mesh(domain, cell_size=0.1, edge_size=0.1, verbose=False)

    tol = 1.0e-3
    assert abs(max(mesh.points[:, 0]) - 0.5) &lt; tol
    assert abs(min(mesh.points[:, 0]) + 0.5) &lt; tol
    assert abs(max(mesh.points[:, 1]) - 0.8) &lt; tol
    assert abs(min(mesh.points[:, 1]) + 0.3) &lt; tol
    # Relax tolerance for debian, see 
    assert abs(max(mesh.points[:, 2]) - 1.0) &lt; 1.1e-3
    assert abs(min(mesh.points[:, 2]) + 0.0) &lt; tol

    vol = sum(helpers.compute_volumes(mesh.points, mesh.cells["tetra"]))
    assert abs(vol - 0.4) &lt; tol
    return

nschloe / pygalmesh / test / test_volume_mesh.py View on Github

def test_ring_extrude():
    p = pygalmesh.Polygon2D([[0.5, -0.3], [1.5, -0.3], [1.0, 0.5]])
    edge_size = 0.1
    domain = pygalmesh.RingExtrude(p, edge_size)
    mesh = pygalmesh.generate_mesh(
        domain, cell_size=0.1, edge_size=edge_size, verbose=False
    )

    tol = 1.0e-2
    assert abs(max(mesh.points[:, 0]) - 1.5) &lt; tol
    assert abs(min(mesh.points[:, 0]) + 1.5) &lt; tol
    assert abs(max(mesh.points[:, 1]) - 1.5) &lt; tol
    assert abs(min(mesh.points[:, 1]) + 1.5) &lt; tol
    assert abs(max(mesh.points[:, 2]) - 0.5) &lt; tol
    assert abs(min(mesh.points[:, 2]) + 0.3) &lt; tol

    vol = sum(helpers.compute_volumes(mesh.points, mesh.cells["tetra"]))
    assert abs(vol - 2 * numpy.pi * 0.4) &lt; 0.05

How to use the pygalmesh.Polygon2D function in pygalmesh

To help you get started, we’ve selected a few pygalmesh examples, based on popular ways it is used in public projects.

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