simple-openl-graphic-tool
Source code can be downloaded from this project repository:
github
gitee
?Simple drawing tool based on C++ (MSVC) and OpenGL? Dynamically draw graphics through rubber band technology; Liang-Barsky algorithm batches clipping of straight lines and polylines; Bresenham algorithm draws ellipses at the midpoint of ellipses.
Contains executable files, environment configuration guide.
Personal website: www.bytesc.top
Personal blog: blog.bytesc.top
If you have any project-related questions, you are welcome to raise issue in this project. I will usually respond within 24 hours.
Source code
C++ source code file. If you run it in an OpenGL environment other than visual studio 2022, just use the following code file.
│ simple-openl-graphic-tool.cpp # Main source code file, project entry │ lineClipping.cpp # Liang-Barsky algorithm │ lineClipping.h │ onMidPointEllispe.cpp # Bresenham algorithm │ onMidPointEllispe.h
Page display
Liang-Barsky algorithm for clipping polylines
Right-click and select the Line menu to start drawing polylines.
Press P on the keyboard to enter Paint mode. (Note that all keyboard operations must be switched to English input method, Chinese input method is invalid)
Then press and hold the left button to determine the starting point, press and hold the left button to drag the polyline, release the left button to determine a vertex, and press the left button again to continue.
Press E on the keyboard to enter cropping mode. (Note that all keyboard operations must be switched to English input method, Chinese input method is invalid)
Hold down the left button and drag the cropping frame, release to determine the size of the frame.
Press C on the keyboard, and the program will use the Liang-Barsky algorithm to crop the polyline according to the cropping box.
Bresenham algorithm for drawing ellipses
Right-click and select the ellipse menu to start drawing.
Hold down the left button and drag to draw.
Multiple pictures can be drawn continuously. Right-click and select the clear menu item to clear it.
When you hold down the left button and drag the mouse to draw, hold down shift at the same time to draw a perfect circle.
Operating environment
Operating environment
windows 11Visual Studio 2022OpenGLglfw-3.3.8.bin.WIN64glutdlls37beta
Do not configure the environment
If you only run the executable file without modification or debugging, there is no need to configure the environment.
The executable file can be found in x64/debug/simple-openl-graphic-tool.exe by double-clicking it in the project directory.
Environment configuration
For the configuration method, please refer to this Zhihu article I reprinted: OpenGL environment setup for VS2022 (complete article)
Visual Studio 2022 The related resources and guidelines required to configure OpenGL (reproduced not original) are in the conf folder.
The conf/Exported.vssettings file is the exported visual studio configuration
Project structure
Source code
C++ source code file. If you run it in an OpenGL environment other than visual studio 2022, just use the following code file.
│ simple-openl-graphic-tool.cpp # Main source code file, project entry │ lineClipping.cpp # Liang-Barsky algorithm │ lineClipping.h │ onMidPointEllispe.cpp # Bresenham algorithm │ onMidPointEllispe.h
vs project directory
visual studio 2022 project directory
│ .gitignore
│ LICENSE
│ lineClipping.cpp
│ lineClipping.h
│ onMidPointEllispe.cpp
│ onMidPointEllispe.h
│ packages.config
│ README.md
│ simple-openl-graphic-tool.cpp # Main source code file, project entry
│ simple-openl-graphic-tool.sln
│ simple-openl-graphic-tool.vcxproj
│ simple-openl-graphic-tool.vcxproj.filters
│ simple-openl-graphic-tool.vcxproj.user
│
├─conf
│ conf.pdf # Configuration Guide
│ Exported.vssettings # Exported visual-studio configuration
│ glad.zip
│ glfw-3.3.8.bin.WIN64.zip
│ glutdlls37beta.zip
│
├─packages
├─readme_img
│
└─x64
├─Debug
│ │ freeglut.dll
│ │ glew32.dll
│ │ glewinfo.exe
│ │ glfw3.dll
│ │ simple-openl-graphic-tool.exe # Executable file entry
│ │ simple-openl-graphic-tool.exe.recipe
│ │ simple-openl-graphic-tool.ilk
│ │ simple-openl-graphic-tool.log
│ │ simple-openl-graphic-tool.obj
│ │ simple-openl-graphic-tool.pdb
│ │ simple-openl-graphic-tool.vcxproj.FileListAbsolute.txt
│
└─Release
│freeglut.dll
│ glew32.dll
│ glewinfo.exe
│ glfw3.dll
│ lineClipping.obj
│ onMidPointEllispe.obj
│ simple-openl-graphic-tool.exe # Executable file entry
│ simple-openl-graphic-tool.exe.recipe
│ simple-openl-graphic-tool.iobj
│ simple-openl-graphic-tool.ipdb
│ simple-openl-graphic-tool.log
│ simple-openl-graphic-tool.obj
│ simple-openl-graphic-tool.pdb
│ simple-openl-graphic-tool.vcxproj.FileListAbsolute.txt
Run method
Run
There is no need to configure the environment to run the executable file. Double-click to open x64/debug/simple-openl-graphic-tool.exe
Debugging
First configure the environment as above, then use Visual Studio 2022 to open simple-openl-graphic-tool.sln, the source code file is simple-openl-graphic-tool .cpp
Before debugging, you need to exclude the following files from generation, as shown below:
│ lineClipping.cpp │ lineClipping.h │ onMidPointEllispe.cpp │ onMidPointEllispe.h
Visual-studio configuration can also be imported from conf/Exported.vssettings
Click Browse to find and select conf/Exported.vssettings
Open Source License
This translated version is for reference only, the English version in the LICENSE file shall prevail
MIT Open Source License:
Copyright ? 2023 bytesc
The right to use, copy, modify, merge, publish, distribute, sublicense and/or sell the Software is hereby granted, free of charge, to any person obtaining a copy of this software and related documentation files (the “Software”), subject to the following condition:
The above copyright notice and this permission notice shall be included in all copies or substantial portions thereof.
THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. In no event shall the author or copyright holder be liable for any claim, damages or other liability, whether in contract, tort or otherwise, arising out of the use of this software.