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Developing Standard

发布新版本步骤

  1. 修改如下文件中的 tag 版本号： .bumpversion.cfg fealpy/init.py
  2. add and commit
  3. 创建相应版本号的 tag
  4. git push github --tags
  5. github 页面 realease

General Python Coding Rule

  • ClassName

  • keyname

  • memberdata

  • function_name

  • member_function_name

  • thisIsFunctionVarable

  • ClassName.py

  • module_name_file.py

FEALPy Naming Rules

Mesh

The kinds of mesh :

  • IntervalMesh: 区间网格

  • TriangleMesh: 三角形网格

  • QuadrangleMesh: 四边形网格

  • TetrahedronMesh: 四面体网格

  • HexahedronMesh: 六面体网格

  • PolygonMesh: 多边形网格

  • PolyhedronMesh: 多面体网格

  • StructureQuadMesh: 结构四边形网格

  • StructureHexMesh: 结构六面体体网格

  • BlockStructureQuadMesh:

  • BlockStructureHexMesh

  • Quadtree

  • Octree

  • Tritree

  • BitreeMesh

The name of basic mesh entity:

  • node

  • cell

  • edge

  • face

The name rules of the number of entity:

  • NN: the Number of Nodes
  • NE: the Number of Edges
  • NF: the Number of Faces
  • NC: the Number of Cells
  • NQ: the Number of Quadrature points
  • GD: the Geometry Dimension
  • TD: the Toplogy Dimension
  • NFV: the Number of Face Vertices
  • NCV: the Number of Cell Vertices

c: 单元指标

f: 面指标

e: 边指标

v: 顶点个数指标

i, j, k, d: 自由度或基函数指标

q: 积分点或重心坐标点指标

m, n: 空间或拓扑维数指标

The basic member data in a mesh:

  • node: a numpy array with shape (NN, GD)
  • ds : the toplogy data structure, which have the following data member
    • NN: the number of nodes
    • NC: the number of cells
    • edge: a numpy array with shape (NE, 2)
    • face: a numpy array with shape (NF, NFV)
    • cell: a numpy array iwth shape (NC, NCV)

other member datas:

  • nodedata = {}

  • celldata = {}

  • edgedata = {}

  • facedata = {}

The general member function of a mesh

  • geo_dimension()

  • top_dimension()

  • number_of_nodes()

  • number_of_cells()

  • number_of_edges()

  • number_of_faces()

  • number_of_entities(etype)

  • entity(etype)

  • entity_measure(etype)

  • entity_barycenter(etype)

  • integrator(index) : get the quadrature formula on this kind of mesh

  • bc_to_points(bc) : transform quadrature points in barycentric coordinates to points in pysical cells

the toplogy data structure class

For every mesh, there is toplogy data member ds, which contain the toplogy data of mesh.

The toplogy relationship function in ds:

  • cell_to_node(...): return cell2node
  • cell_to_edge(...): return cell2edge
  • cell_to_face(...): return cell2face
  • cell_to_cell(...): return cell2cell
  • face_to_node(...): return face2node
  • face_to_edge(...): return face2edge
  • face_to_face(...): return face2face
  • face_to_cell(...): return face2cell
  • edge_to_node(...): return edge2node
  • edge_to_edge(...): return edge2edge
  • edge_to_face(...): return edge2face
  • edge_to_cell(...): return edge2cell
  • node_to_node(...): return node2node
  • node_to_edge(...): return node2edge
  • node_to_face(...): return node2face
  • node_to_cell(...): return node2cell

Function Space

degrees of freedom management

  • ldof: the number of local dof on each cell
  • gdof: the number of global dof on the whole mesh

(NQ, NC, ldof, m, n, ...)

The member function in a FunctionSpace:

  • number_of_global_dofs()

  • number_of_local_dofs()

  • cell_to_dof()

  • boundary_dof()

  • basis(bc)

  • gradbasis(bc)

  • function()

  • interpolation(u):

  • projection(u):

  • array(dim=None)

  • value(u, bc, cellidx=None)

  • grad_value(u, bc, cellidx=None)

  • div_value(u, bc, cellidx=None)

指标循环约定

c: 单元指标 f: 面指标 e: 边指标 v: 顶点个数指标 i, j, k, d: 自由度或基函数指标 q: 积分点或重心坐标点指标 m, n: 空间或拓扑维数指标