fix constructor and print Mesh more nicely

Author: SimonDanisch

src/basic_types.jl

@@ -271,7 +271,7 @@ function MetaMesh(points::AbstractVector{<:Point}, faces::AbstractVector{<:Abstr
 end
 
 function MetaMesh(m::AbstractMesh; kw...)
-    MetaMesh(m, merge(meta(m), values(kw)))
+    MetaMesh(Mesh(m), merge(meta(m), values(kw)))
 end
 
 @inline Base.hasproperty(mesh::MetaMesh, field::Symbol) = hasproperty(getfield(mesh, :meta), field)

src/meshes.jl

@@ -174,3 +174,30 @@ function Base.get(f, mesh::MetaMesh, key::Symbol)
     hasproperty(mesh, key) && return getproperty(mesh, key)
     return f()
 end
+
+function Base.show(io::IO, ::MIME"text/plain", mesh::Mesh{N, T}) where {N, T}
+    FT = eltype(faces(mesh))
+    println(io, "Mesh{$N, $T, $(FT)}")
+    println(io, "    vertices: ", length(coordinates(mesh)))
+    println(io, "    faces: ", length(faces(mesh)), " $(FT)")
+end
+
+function Base.show(io::IO, mesh::Mesh{N, T}) where {N, T}
+    FT = eltype(faces(mesh))
+    print(io, "Mesh{$N, $T, $(FT)}(...)")
+end
+
+function Base.show(io::IO, ::MIME"text/plain", mesh::MetaMesh{N, T}) where {N, T}
+    FT = eltype(faces(mesh))
+    println(io, "MetaMesh{$N, $T, $(FT)}")
+    println(io, "    vertices: ", length(coordinates(mesh)))
+    println(io, "    faces: ", length(faces(mesh)), " $(FT)")
+    for (k, v) in pairs(meta(mesh))
+        println(io, "    ", k, ": ", length(v), " $(eltype(v))")
+    end
+end
+
+function Base.show(io::IO, mesh::MetaMesh{N, T}) where {N, T}
+    FT = eltype(faces(mesh))
+    println(io, "MetaMesh{$N, $T, $(FT)}($(join(keys(meta(mesh)), ", ")))")
+end