Trouble installing on Windows

[montallban]

Hi, thanks to the contributors to this repository, I have cleared some hurdles in my installation of pygalmesh. However, more remain.

So far, the process has been simply a process of finding things to download to get one step further in the installation. Currently, I'm hung up on

  /Users/User/usr/vcpkg/installed/x86-windows/include/CGAL/Mesh_3/Is_mesh_domain_field_3.h(25): fatal error C1083: Cannot open include file: 'boost/callable_traits/is_invocable.hpp': No such file or directory
    error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\Community\\VC\\Tools\\MSVC\\14.22.27905\\bin\\HostX86\\x64\\cl.exe' failed with exit status 2

I wasn't aware that boost was a dependency for pygalmesh. A simple google search turns up: https://www.boost.org/doc/libs/?view=category_metaprogramming&sort=boost-version

I'm new to this, so sorry if the steps are blindingly easy to you.

[flothesof]

Hi,
I have been able to install pygalmesh on windows, doing a little bit of hacking to get it to work.

My instructions rely on the use of conda and the conda-forge channel (related to my work on #81).

It consists of installing the dependencies using conda-forge and then of a little patching to get the paths right. I've done this in a clean conda environment so as to try to make it as reproducible as possible.

installing dependencies

conda create -n pygalmesh_test python=3.7
conda activate pygalmesh_test
conda install -c conda-forge pybind11 mpir mpfr eigen cgal-cpp

cloning the source and hacking it a little bit

git clone https://github.com/nschloe/pygalmesh.git
cd pygalmesh
set EIGEN_INCLUDE_DIR=c:\Anaconda3\envs\pygalmesh_test\Library\include\eigen3
#in setup.py add the last line to include_dirs
	include_dirs=[
				os.environ.get("EIGEN_INCLUDE_DIR", "/usr/include/eigen3/"),
				# Path to pybind11 headers
				get_pybind_include(),
				get_pybind_include(user=True),
	--> this		r"C:\Anaconda3\envs\pygalmesh_test\Library\include",
			],
#and also after the last comma at the same level than include_dirs			
	extra_link_args = ["/LIBPATH:C:\Anaconda3\envs\pygalmesh_test\Library\lib"],		
# finally on the command line
pip install .

Of course, if your path to the conda environment is different, you have to adapt this "recipe" to your own case.

Regards,
Florian

[nschloe]

Let me point everyone to https://anaconda.org/conda-forge/pygalmesh. (Thanks @flothesof!)

[sama2689]

Will using the conda-forge method still require installation of CGAL and Eigen separately? Or are these installed by conda?

[nschloe]

I think it's pulled in automatically.

[flothesof]

To elaborate a little more on that answer: the conda-forge version of pygalmesh knows about its dependencies (such as CGAL and Eigen) which are installed as binary packages (no compilation needed).