vtk/vtu data in ASCII format

[torrilhon]

Hi!
My favorite (though awkward) choice of visualization tool would like to have the vtu-output of Trixi2Vtk in full ASCII format. Currently, the vtu-files show the metadata in ASCII, but the actual data is binary (which is of course a good choice as default...)

Ideally, Trixi2VTK would offer a flag 'format=ASCII' to switch. Apparently, you can load into paraview and save as ASCII, but having a flag would be really neat...

Thanks!

[sloede]

This boils down to telling WriteVTK.jl to store the output in an ASCII format. An easy approach could thus be to add a new flag such as ascii=true/false (default false) to trixi2vtk

Trixi2Vtk.jl/src/convert.jl

Lines 31 to 33 in d38a662

	function trixi2vtk(filename::AbstractString...;
	format=:vtu, verbose=false, hide_progress=false, pvd=nothing,
	output_directory=".", nvisnodes=nothing, save_celldata=true)

that then in turn sets the appropriate keyword arguments in WriteVTK.jl's vtk_grid. For example, for ultimate compatibility it would make sense to pass compress=false, append=false, ascii=true to vtk_grid.