Konstantinos Chatzilygeroudis

> @costashatz looking at release notes of glfw 3.3.1, I see "zero monitor size" being fixed: https://www.glfw.org/changelog.html .. should we remove this workaround again? (I assume distros that already have...

I found this library for KD-Trees which seems to be very fast and is header-only (with one header): https://github.com/jlblancoc/nanoflann It could be a good candidate for replacing the one that...

@Aneoshun @jbmouret what is the status of this PR?

I get `Checking for ssrc kdtree (KD-tree) : Not found` and then the compilation fails (similar errors as in the CI tests/compilation).. Any ideas?

> I get `Checking for ssrc kdtree (KD-tree) : Not found` and then the compilation fails (similar errors as in the CI tests/compilation).. Any ideas? No worries. I installed libssrckdtree...

Now I am getting the following error: ``` ../examples/ex_qd.cpp:169:26: required from here ../sferes/qd/container/kdtree_storage.hpp:75:26: error: passing ‘const tree_t {aka const kd_v1_0_8::spatial::kd_tree}’ as ‘this’ argument discards qualifiers [-fpermissive] auto it = _data.find_nearest_neighbor(pp,...

> Yes, the original version of srckdtree has an issue. We use a slightly modified version, that I can send to you by e-mail if needed. Yes please send it...

We can use `clang-format`..

This should be fixed by #95. Can you check @Aneoshun if it works for Ubuntu also?

For the hexapod, I am not sure what is being used in the [modular_qd](https://github.com/sferes2/modular_QD) repo. Maybe @Aneoshun knows better. I assume that the hexapod examples will not compile..