lalala753
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lalala753
魏老师您好, 我用 ```python from fealpy.mesh import HexahedronMesh ``` 建立六面体网格, 我找到边的法向量数据结构``` mesh.edge_unit_tangent() ``` 请问老师, 每个面的方向向量有内置数据结构吗
网格转化问题
2
魏老师您好 我用fealpy做四边形网格剖分的测试 ```python from fealpy.mesh.quadrangle_mesh import QuadrangleMesh from fealpy.mesh import PolygonMesh box = [0, 1, 0, 1] mesh = QuadrangleMesh.from_box(box, nx=Nxy, ny=Nxy) node = mesh.node cell = mesh.ds.cell mesh =...