Open
Description
is there a function to remove internal edges in a 2D mesh? say for example i have a mesh with two quadrangles which touch like this:
julia> using Meshes, GLMakie
julia> points1 = [(0,0), (1,0), (0,1), (1,1), (1,0), (2,0), (1,1), (2,1)];
julia> quads1 = connect.([(1,2,4,3), (5,6,8,7)], Quadrangle);
julia> mesh1 = SimpleMesh(points1, quads1)
2 SimpleMesh
8 vertices
├─ Point(x: 0.0 m, y: 0.0 m)
├─ Point(x: 1.0 m, y: 0.0 m)
├─ Point(x: 0.0 m, y: 1.0 m)
├─ Point(x: 1.0 m, y: 1.0 m)
├─ Point(x: 1.0 m, y: 0.0 m)
├─ Point(x: 2.0 m, y: 0.0 m)
├─ Point(x: 1.0 m, y: 1.0 m)
└─ Point(x: 2.0 m, y: 1.0 m)
2 elements
├─ Quadrangle(1, 2, 4, 3)
└─ Quadrangle(5, 6, 8, 7)
julia> viz(mesh1, showsegments=true)

i'd like to programmatically simplify this to a single quadrangle like this:
julia> points2 = [(0,0), (2,0), (0,1), (2,1)];
julia> quads2 = connect.([(1,2,4,3)], Quadrangle);
julia> mesh2 = SimpleMesh(points2, quads2)
1 SimpleMesh
4 vertices
├─ Point(x: 0.0 m, y: 0.0 m)
├─ Point(x: 2.0 m, y: 0.0 m)
├─ Point(x: 0.0 m, y: 1.0 m)
└─ Point(x: 2.0 m, y: 1.0 m)
1 elements
└─ Quadrangle(1, 2, 4, 3)
julia> viz(mesh2, showsegments=true)
