This group contains several useful tools for development, debugging and testing.
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| file | arg_parser.h |
| | A tool to parse command line arguments.
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| file | color.h |
| | Tools to manage RGB colors.
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| file | math.h |
| | Some extensions to the standard cmath library.
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| file | random.h |
| | Mersenne Twister random number generator.
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| file | tolerance.h |
| | A basic tool to handle the anomalies of calculation with floating point numbers.
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| file | test_tools.h |
| | Some utilities to write test programs.
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| Color | distantColor (const Color &c) |
| | Returns a visibly distinct Color. More...
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| Color | distantBW (const Color &c) |
| | Returns black for light colors and white for the dark ones. More...
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| bool | isNaN (double v) |
| | Check whether the parameter is NaN or not. More...
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double | round (double r) |
| | Round a value to its closest integer.
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const Color | WHITE (1, 1, 1) |
| | White color constant.
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const Color | BLACK (0, 0, 0) |
| | Black color constant.
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const Color | RED (1, 0, 0) |
| | Red color constant.
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const Color | GREEN (0, 1, 0) |
| | Green color constant.
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const Color | BLUE (0, 0, 1) |
| | Blue color constant.
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const Color | YELLOW (1, 1, 0) |
| | Yellow color constant.
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const Color | MAGENTA (1, 0, 1) |
| | Magenta color constant.
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const Color | CYAN (0, 1, 1) |
| | Cyan color constant.
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const Color | GREY (0, 0, 0) |
| | Grey color constant.
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const Color | DARK_RED (.5, 0, 0) |
| | Dark red color constant.
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const Color | DARK_GREEN (0,.5, 0) |
| | Dark green color constant.
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const Color | DARK_BLUE (0, 0,.5) |
| | Drak blue color constant.
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const Color | DARK_YELLOW (.5,.5, 0) |
| | Dark yellow color constant.
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const Color | DARK_MAGENTA (.5, 0,.5) |
| | Dark magenta color constant.
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const Color | DARK_CYAN (0,.5,.5) |
| | Dark cyan color constant.
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const long double | E = 2.7182818284590452353602874713526625L |
| | The Euler constant.
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const long double | LOG2E = 1.4426950408889634073599246810018921L |
| | log_2(e)
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const long double | LOG10E = 0.4342944819032518276511289189166051L |
| | log_10(e)
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const long double | LN2 = 0.6931471805599453094172321214581766L |
| | ln(2)
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const long double | LN10 = 2.3025850929940456840179914546843642L |
| | ln(10)
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const long double | PI = 3.1415926535897932384626433832795029L |
| | pi
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const long double | PI_2 = 1.5707963267948966192313216916397514L |
| | pi/2
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const long double | PI_4 = 0.7853981633974483096156608458198757L |
| | pi/4
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const long double | SQRT2 = 1.4142135623730950488016887242096981L |
| | sqrt(2)
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const long double | SQRT1_2 = 0.7071067811865475244008443621048490L |
| | 1/sqrt(2)
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| Color lemon::distantColor |
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const Color & |
c | ) |
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Returns a Color which is as different from the given parameter as it is possible.
| Color lemon::distantBW |
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const Color & |
c | ) |
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Returns black for light colors and white for the dark ones.
| bool lemon::isNaN |
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double |
v | ) |
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inline |
This function checks whether the parameter is NaN or not. Is should be equivalent with std::isnan(), but it is not provided by all compilers.