ReadGmsh

Read msh formatted file generated by Gmsh, and return information of nodes and elements of the selected type elemtype. The parameter elemtype is an integer representing a Gmsh element type, for example,

1

2-node line. 

2

3-node triangle. 

3

4-node quadrangle. 

4

4-node tetrahedron. 

5

8-node hexahedron. 

More element types can be found in Gmsh documentation (Section 9.1).

Install

] add Gmsh
] add ReadGmsh 

Usage

using ReadGmsh

# get information of nodes
nodeTags, nodeCoords = get_nodes("examples/rect2d.msh")

# get information of elements of Gmsh element type 1 and 2 respectively
elemTags_1, elemNodeTags_1 = get_elems("examples/rect2d.msh", 1) # elemtype = 1
elemTags_2, elemNodeTags_2 = get_elems("examples/rect2d.msh", 2) # elemtype = 2

# get both information of nodes and elements
nodeTags, nodeCoords, elemTags_2, elemNodeTags_2 = get_nodes_elems("examples/rect2d.msh", 2)

# get information of boundary elements
elemtype = 2
boundary_element_dimension = 2
boundElemTags, boundElemNodeTags = get_bounds("examples/rect2d.msh", elemtype, boundary_element_dimension)

# get information of nodes, elements, and boundary elements
nodeTags, nodeCoords, elemTags_2, elemNodeTags_2, boundElemTags, boundElemNodeTags = get_nodes_elems_bounds("examples/rect2d.msh", 2, 2)