Use relative paths in includes

All files are directly included, instead of a path relative to the dune-uggrid's root director.

Example:
#include "namespace.h"
instead of
#include "low/namespace.h"
in dom/domain.h.

If this is done, we can drop the include_directories command in the CMakeLists.txt and cmake/module/DuneUggridMacros.cmake.

Mentioned in commit ad6096fc

Mentioned in merge request !34 (merged)

Mentioned in commit a940ceb0

If we start changing the #include directives, I would like to move to using dune/uggrid similar to other DUNE modules.

I don't think we should go for #include <dune/uggrid/...> as the uggrid code currently does not at all bahve like dune code. I think it is not problem, but then it should also be OK to keep the includes differently.

Perhaps #include <ug/...> would be best, e.g. #include <ug/low/heaps.h>.

I think I'd prefer #include <dune/uggrid/low/heaps.h>. Even if the code currently does not behave like Dune code, we want dune-uggrid to become more Dune-like. Then, if we touch the headers at all, why not go all the way? What would be the advantage of a compromise like #include <ug/low/heaps.h>?

I think I'd prefer #include <dune/uggrid/low/heaps.h>. Even if the code currently does not behave like Dune code, we want dune-uggrid to become more Dune-like. Then, if we touch the headers at all, why not go all the way? What would be the advantage of a compromise like #include <ug/low/heaps.h>?

I think the ideal solution would be to clean the code sufficiently up to completely integrate it into dune-grid. One option would be to move parts, once they work sufficiently well and then have them in the dune namespace and directory. But then it would be under dune/grid and not dune/uggrid...

Christian, are you serious? UG has a long way to go to be ready for Dune-grid; both in terms of its code and of politics.
I am with Oliver regarding the includes.

Christian, are you serious?

doesn't all developent need a vision?

I propose a new structure, moving many files below dune/uggrid. I tried to reduce the number of files with only three files or less and to make the short folder names more telling. Hopefully, I and other will find it easier to navigate through the new structure.
As I don't understand the stuff below parallel, it mainly remains untouched (what does ddd mean?).

I propose:

initug.* -> dune/uggrid/initug.*
dev/* -> dune/uggrid/*
dom/ -> dune/uggrid/domain
dom/gen/* -> dune/uggrid/domain/*
dom/std/* -> dune/uggrid/domain/*
gm/* -> dune/uggrid/gm/*
low/* -> dune/uggrid/low/*
np/* -> dune/uggrid/numericalprocedures/*
np/algebra/* -> dune/uggrid/numericalprocedures/*
np/udm/* -> dune/uggrid/numericalprocedures/*
parallel/ddd/* -> dune/uggrid/parallel/ddd/*
parallel/dddif/* -> dune/uggrid/parallel/dddinterface/*
parallel/ppif/* -> dune/uggrid/parallel/parallelprocessorinterface/*
parallel/ppif/MPI/* -> dune/uggrid/parallel/parallelprocessorinterface/*
ug/* -> delete whole folder
ui/commands.* -> dune/uggrid/commands.*
lib/ugdata/* -> lib/*

Please have a look at !137 (closed) and tell me how you like it!

mentioned in merge request !143 (merged)

closed via merge request !143 (merged)

mentioned in commit 1766c59e