Description

This is just a plain plotter made for real-time plotting with Qt, using OpenGL

Requirements

C++11

Qt, version higher than 4

Hardware support for OpenGL version 3.3 or higher

Usage

Check if you have supported OpenGL version

glxinfo | grep OpenGL

If you don't have it installed, install OpenGL dev files and tools

sudo apt-get install libgl1-mesa-dev mesa-utils 

When you use qmake, you have to link OpenGL manually, for example

QT += opengl
CONFIG += opengl

win32: LIBS += -lopengl32

You can find example .pro file in folder qmake

When you use cmake (which is recommended), add directory with this library, for example,

add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/sources/openglplot)

Then, you have link this library to your project

find_library(OPENGLPLOT openglplot PATH_SUFFIXES openglplot)
target_link_libraries(${PROJECT_NAME} PRIVATE openglplot)

TODO

• Add the ability to put two graphs in one widget
• Improve text rendering
• Improve text characters loading perfomance
• Improve smoothing
• Add power sybols to render numbers with more than 7 characters
• Eliminate text and axis jitter
• Add framebuffer copy if possible
• Add custom graph signatures
• Add captions support on the graph
• Add support for saving graph