physics

Description

The goal of this program is to create art by using physics and mathematics.

It uses the OpenCV C++ library to create images.

Structure of the C++ sources files

All the C++ source files are in the directory src.

• main.cpp main.cpp with the main definition.
• includes contains includes included in every C++ file.
• algorithm contains algorithms I made.
• data contains stuff for storing and using various data, the classes Point and Array and the namespace Math.

Usage

Here is the program usage:

Usage:
  ./build/project
    [-h | --help] [-u | --usage] [-L | --license]
    [{-o | --output} FILE]
    [{-w | --width} WDITH] [{-h | --height} HEIGHT] [{-s | --size} WIDTH HEIGHT]
    [--fps FPS] [{-l | --length} LENGTH]
    [{-psx | --point-sx} SX] [{-psy | --point-sy} SY]
    [{-pr | --point-radius} RADIUS] [{-pm | --point-mass} MASS]
    [{-pc | --point-color} R G B]

Warning: short options cannot be combined into one, for example '-o -s' is not '-os'.

Options description, with default value(s) in brackets:

  -h, --help      Show the help for this program.
  -u, --usage     Show a shorter help message.
  -L, --license   Show the license.

  -o, --output FILE         Write the video to FILE. [./out.avi]
  -w, --width WIDTH         Set the video width. [1920]
  -h, --height HEIGHT       Set the video height. [1080]
  -s, --size WIDTH HEIGHT   Set the video width and height. [1920] [1080]
  --fps FPS                 Set the frames per seconds. [10]
  -l, --length LENGTH       Set the number of frames in the video. [300]

  -psx, --point-sx SX          Set the x points speed at start. [0]
  -psy, --point-sy SY          Set the y points speed at start. [0]
  -pr, --point-radius RADIUS   Set the points radius. [1]
  -pm, --point-mass MASS       Set the points mass. [10]
  -pc, --point-color R G B     Set the points color (decimal). [255 255 255]

Issues

Everything should work as expected. I already said that but this time I've checked.

I have a new problem (not really important but really strange)

Build

To build the project, you must have CMake, a C++ compiler and OpenCV at least 4.5.5 installed.

When the dependencies are installed, you have 2 choices:

1. Run my shell script make.sh which do everything for you:

   ./make.sh

   It creates the cmake configuration files in build/ then build the project.

   The produced executables are also put in build/:

   • main.cpp -> build/project

2. Run yourself the commands to build the project:

   cd '<directory where CMake will put the files>'
   cmake '<path to the root directory of the repo>'
   make

3. You can remove the files created by CMake and my program with the script clean.sh:

./clean.sh

Tools

If you have cppcheck installed, the configuration file is project.cppcheck. The directory cppcheck.d will contains the produced files. I made a small script cppcheck.sh to use it from command line:

./cppcheck.sh [optionnal arguments for cppcheck]`