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Python 绘图库 matplotlib

Matplotlib is a comprehensive library for creating static, animated, and interactive visualizations in Python. Matplotlib makes easy things easy and hard things possible.

安装 matplotlib​

pip install matplotlib

使用​

安装 matplotlib-cpp​

Extremely simple yet powerful header-only C++ plotting library built on the popular matplotlib

下载源码并编译安装

git clone https://github.com/lava/matplotlib-cpp.git
mkdir build && cd build
cmake ..
make
sudo make install

头文件 matplotlibcpp.h 被安装到了 /usr/local/include 目录中，使用时直接包含

CMakeLists.txt 中需要添加 Python 库路径， Numpy 包路径

cmake_minimum_required(VERSION 3.24)
project(matplotlib_cpp_demo)

set(CMAKE_CXX_STANDARD 17)

# Dependence lib
## Add matplotlib-cpp
set(PYTHON_INCLUDE_DIRS $ENV{HOME}/anaconda3/envs/py310/include/python3.10)
set(NumPy_INCLUDE_DIRS $ENV{HOME}/anaconda3/envs/py310/lib/python3.10/site-packages/numpy/core/include)
set(PYTHON_LIBRARIES $ENV{HOME}/anaconda3/envs/py310/lib/libpython3.10.so)

add_executable(matplotlib_cpp_demo ${PROJECT_SOURCE_DIR}/main.cpp)

# Target include
target_include_directories(matplotlib_cpp_demo PRIVATE
        ${PYTHON_INCLUDE_DIRS}
        ${NumPy_INCLUDE_DIRS}
        )

# Target lib
target_link_libraries(matplotlib_cpp_demo
        ${PYTHON_LIBRARIES}
        )
  • 路径根据实际情况进行调整

绘制折线图

#include "matplotlibcpp.h"

namespace plt = matplotlibcpp;

int main() {
    plt::plot({1,3,2,4});
    plt::show();
}

配置完成，其他使用方法可以参照其 README

参考​