# ArchimedeanSpiral Class Reference

[Example scripts (models)]

Example: Archimedean spiral More...

## Public Member Functions | |

ArchimedeanSpiral (const Options &opt) | |

Actual model. | |

ArchimedeanSpiral (ArchimedeanSpiral &p) | |

Constructor for cloning p. | |

virtual Space * | copy (void) |

Copy during cloning. | |

virtual FloatVar | cost (void) const |

Cost function. | |

virtual void | print (std::ostream &os) const |

Print solution coordinates. | |

## Protected Attributes | |

FloatVarArray | f |

The numbers. |

## Detailed Description

Example: Archimedean spiral

The Archimedean Spiral is a spiral where all points corresponding to the locations over time of a point moving away from a fixed point with a constant speed along a line which rotates with constant angular velocity. It is defined by the polar equation:

To get cartesian coordinates, it can be solved for and in terms of and . By setting and , it yields to the equation:

with

The tuple is related to the position for and on the curve. and are positive numbers.

To get reasonable interval starting * sizes, and are restricted to .

Definition at line 67 of file archimedean-spiral.cpp.

## Constructor & Destructor Documentation

ArchimedeanSpiral::ArchimedeanSpiral | ( | const Options & | opt |
) | ` [inline]` |

Actual model.

Definition at line 73 of file archimedean-spiral.cpp.

ArchimedeanSpiral::ArchimedeanSpiral | ( | ArchimedeanSpiral & | p |
) | ` [inline]` |

Constructor for cloning *p*.

Definition at line 91 of file archimedean-spiral.cpp.

## Member Function Documentation

virtual Space* ArchimedeanSpiral::copy | ( | void | ) | ` [inline, virtual]` |

Copy during cloning.

Definition at line 96 of file archimedean-spiral.cpp.

virtual FloatVar ArchimedeanSpiral::cost | ( | void | ) | const` [inline, virtual]` |

Cost function.

Definition at line 100 of file archimedean-spiral.cpp.

virtual void ArchimedeanSpiral::print | ( | std::ostream & | os |
) | const` [inline, virtual]` |

Print solution coordinates.

Reimplemented from Gecode::Driver::ScriptBase< BaseSpace >.

Definition at line 104 of file archimedean-spiral.cpp.

## Member Data Documentation

FloatVarArray ArchimedeanSpiral::f` [protected]` |

The numbers.

Definition at line 70 of file archimedean-spiral.cpp.

The documentation for this class was generated from the following file:

- examples/archimedean-spiral.cpp