This repository contains toy ImPlot applications that demonstrate some of the library's functionality. The demos here are more sophisticated than those provided in implot_demo.h, and may rely on third-party libraries that would otherwise clutter ImPlot's main repository. Use these examples as a starting point for your application and to familiarize yourself with ImPlot, but do not assume all code (e.g. signal processing algorithms) to be perfectly correct or optimal.

• OpenGL
• C++17 compiler

Note: Compiled and tested with MSVC. Minor changes to CMakeLists.txt may be required to support other compilers. If you make a fix, please submit a PR.

1. Clone this repository, ImPlot, and ImGui into a parent directory (name doesn't matter):

mkdir root
cd root
git clone https://github.com/epezent/implot_demos
git clone https://github.com/epezent/implot
git clone https://github.com/ocornut/imgui

• root/
  • imgui/
  • implot/
  • implot_demos/

2. Build with CMake, e.g.:

cd implot_demos
mkdir build
cd build
cmake ..
cmake --build . --config Release

Demo	Description	Image
demo.cpp	Main demo. Displays the ImPlot (and ImGui) library supplied demo windows.
filter.cpp	Simple filter toy for educational purposes. Displays time domain input/output signals, and the frequency domain transfer function, amplitude spectrum, etc.
spectrogram.cpp	Realtime audio spectrogram and visualizer with device playback. Pass in an audio file at the command line: ./spectrogram.exe ./aphex_twin_formula.wav (see resources/audio folder). Recommend compiling with ImPlot backends branch.
maps.cpp	OpenStreetMap world map viewer. Downloads and displays zoomable tile maps in a plot.
mandel.cpp	Realtime Mandelbrot viewer using AVX2 and OpenMP acceleration. Recommend compiling with ImPlot backends branch.
perlin.cpp	Renders perlin noise in a heatmap.
graph.cpp	Simple graphing calculator using exprtk expression evaluator.
stocks.cpp	Downloads and displays historical stock data from Yahoo Finance.

Have you created something awesome with ImPlot? If so, please consider submitting a PR with a minimal working example of your application as a demo. Use the following guidelines:

• Modify your ImPlot/ImGui code so that it subclasses common/App.h (see any existing demos).
• Try to contain your demo to a single file located in demos/.
• Indicate your authorship and any helpful documentation at the top of your demo source file.
• Add dependencies with CMake FetchContent (preferred), git submodules, or manually to the 3rdparty/ folder (include the license).
• If your demo requires resources (audio, images, etc.), add them to the resources/ folder. Keep it simple!
• Screenshots and/or GIFs with your PR are helpful.