Trapezoids

In general, we will call trapezoidal shapes having 8 vertices and up to 6 trapezoid faces. Besides that, two of the opposite faces are parallel to XY plane and are positioned at `dZ`

. Since general trapezoids are seldom used in detector geometry descriptions, there are several primitives implemented in the modeller for particular cases.

## Classes | |

class | TGeoArb8 |

An arbitrary trapezoid with less than 8 vertices standing on two parallel planes perpendicular to Z axis. More... | |

class | TGeoGtra |

A twisted trapezoid. More... | |

class | TGeoTrap |

A general trapezoid. More... | |

class | TGeoTrd1 |

A trapezoid with only X varying with Z. More... | |

class | TGeoTrd2 |

A trapezoid with only X varying with Z. More... | |