add export func for FsSurface

src/fs_surface.jl

@@ -67,8 +67,6 @@ function read_fs_surface(file::AbstractString)
     file_io = open(file, "r")
     header = read_fs_surface_header(file_io)
 
-    #@printf("Reading %d vertices and %d faces at current position %d.\n", header.num_vertices, header.num_faces, Base.position(file_io))
-
     vertices_raw::Array{Float32,1} = reinterpret(Float32, read(file_io, sizeof(Float32) * header.num_vertices * 3))
     vertices_raw .= ntoh.(vertices_raw)
     vertices::Array{Float32,2} = Base.reshape(vertices_raw, (3, Base.length(vertices_raw)÷3))'
@@ -89,16 +87,18 @@ function export_to_obj(file:: AbstractString, bm::BrainMesh)
     open(file, "w") do f
         for row_idx in 1:size(bm.vertices, 1)
             row = bm.vertices[row_idx, :]
-            @assert Base.length(row) == 3
             vertex_rep = @sprintf("v %f %f %f\n", row[1], row[2], row[3])
             write(f, vertex_rep)
         end
         for row_idx in 1:size(bm.faces, 1)
             row = bm.faces[row_idx, :]
-            @assert Base.length(row) == 3
             face_rep = @sprintf("f %d %d %d\n", row[1]+1, row[2]+1, row[3]+1)
             write(f, face_rep)
         end
     end
 end
 
+
+""" Export the mesh of a FreeSurfer surface to a Wavefront Object File. """
+export_to_obj(file:: AbstractString, x::FsSurface) = export_to_obj(file, x.mesh)
+