A mathplot example with a Dear ImGui frame to set options

This example project demonstrates how you can write and build a program that uses mathplot as a library along with a little Dear ImGui frame to set (and act on) options for the visualization.

This project is just one CMakeLists.txt file containing the commands required to use mathplot (with imgui) and a single target (prog1), which compiles the example program prog1.cpp.

To make your own program, you could either replace prog1.cpp with your own code, or incorporate the relevant parts of the CMakeLists.txt file into your own CMakeLists.txt in another project.

Dependencies

If you are using Debian or Ubuntu, the following apt command should install the mathplot dependencies. Note that libarmadillo-dev and libhdf5-dev are optional. They're not used by prog1.cpp but they do allow all the mathplot headers to be used in this template.

sudo apt install build-essential cmake git wget  \
                 nlohmann-java3-dev librapidxml-dev \
                 freeglut3-dev libglu1-mesa-dev libxmu-dev libxi-dev \
                 libglfw3-dev libfreetype-dev libarmadillo-dev libhdf5-dev

On Arch Linux the following command should install dependencies:

sudo pacman -S vtk lapack blas freeglut glfw-wayland nlohmann-java rapidxml

On Fedora Linux, the following command should install the required dependencies

sudo dnf install gcc cmake libglvnd-devel mesa-libGL-devel glfw-devel \
                 freetype-devel armadillo-devel hdf5-devel nlohmann-java-devel rapidxml-devel

I'd love to know the equivalents for other Linux distributions so I can include them in the mathplot documentation, so if you know, please pull-request them!

If you're building on a Mac, you can refer to the Mac README for help. You only need to obtain and build glfw3; OpenGL and Freetype should already be installed by default.

Building

To build and run the example:

# Clone this example
git clone git@github.com:sebsjames/mathplot_imgui # or your fork of it

# Clone, copy or symlink mathplot INSIDE your example:
cd mathplot_imgui # or whatever you named your fork/copy
git clone --recurse-submodules git@github.com:sebsjames/mathplot

# Clone, copy or symlink Dear ImGui INSIDE your example:
git clone git@github.com:ocornut/imgui

# Build prog1 in a 'build' directory
mkdir build
cd build
cmake ..
make
./prog1 # You should see a window containing a geodesic polynomial and an ImGui!