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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| r""" | ||
| Quad geometry example | ||
| --------------------- | ||
| Quad geometry example. | ||
| """ | ||
|
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| from __future__ import annotations | ||
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| from pathlib import Path | ||
| import subprocess | ||
| from typing import Optional | ||
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| import pyvista as pv | ||
| import shapely | ||
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| class Delaunay2D: | ||
| """Delaunay2D class.""" | ||
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| def __init__(self, shell: shapely.Polygon, holes: Optional[list[shapely.Polygon]] = None) -> None: | ||
| """Create a Delaunay2D object.""" | ||
| self.shell = shapely.Polygon(shell) | ||
| self.holes = [shapely.Polygon(hole) for hole in holes] if holes else [] | ||
| self._generate_mesh() | ||
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| def _generate_mesh(self) -> None: | ||
| cell_size = 0.05 | ||
| with Path("quad.geo").open("w") as f: | ||
| for linearring in [self.shell.exterior, *list(self.shell.interiors), *self.holes]: | ||
| coords = linearring.coords[:-1].copy() | ||
| for i, coord in enumerate(coords): | ||
| x = coord[0] | ||
| y = coord[1] | ||
| z = coord[2] | ||
| f.write("Point(" + str(i + 1) + ") = {" + str(x) + "," + str(y) + "," + str(z) + "," + str(cell_size) + "};\n") | ||
| for i, _ in enumerate(coords[:-1]): | ||
| f.write("Line(" + str(i + 1) + ") = {" + str(i + 1) + ", " + str(i + 2) + "};\n") | ||
| f.write("Line(" + str(len(coords)) + ") = {" + str(len(coords)) + ", 1};\n") | ||
| f.write("Line Loop(1) = {") | ||
| for i in range(len(coords) - 1): | ||
| f.write(str(i + 1) + ", ") | ||
| f.write(str(len(coords)) + "};\n") | ||
| f.write("Plane Surface(1) = {1};\n") | ||
| subprocess.run(["gmsh", "quad.geo", "-2", "-o", "quad.vtk"], check=False) # noqa: S603, S607 | ||
| self.mesh = pv.read("quad.vtk") | ||
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| alg = Delaunay2D([(0, 0, 0), (1, 0, 0), (1, 1, 0), (0, 1, 0)]) | ||
| alg.mesh.plot(show_edges=True, color="w", cpos="xy") |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,12 +1,9 @@ | ||
| libfltk1.3-dev | ||
| libfreetype6-dev | ||
| libgl1-mesa-dev | ||
| libgl1-mesa-glx | ||
| libglu1 | ||
| libocct-data-exchange-dev | ||
| libocct-foundation-dev | ||
| libxcursor-dev | ||
| libxft2 | ||
| libxinerama1 | ||
| python-tk | ||
| xvfb |
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