doc/geometry.rst

   1 Geometry Module
   2 ===============
   3
   4 The geometry module is used to obtain information about the points and vertices of a ployhedra.
   5
   6 .. py:class:: Points
   7
   8 This class represents points in space.
   9
  10     .. py:method:: isorigin(self)
  11
  12         Return ``True`` if a point is the origin.
  13
  14     .. py:method:: __eq__(self, other)
  15
  16         Compare two Points for equality.
  17
  18     .. py:method:: __add__(self, other)
  19
  20         Add a Point to a Vector and return the result as a Point.
  21
  22     .. py:method:: __sub__(self, other)
  23
  24         Return the difference between two Points as a Vector.
  25
  26     .. py:method:: aspolyhedon(self)
  27
  28         Return a Point as a polyhedron corresponding to the Point, assuming the Point has integer coordinates.
  29
  30
  31 .. py:class:: Vector
  32
  33 This class represents displacements in space.
  34
  35     .. py:method:: __eq__(self, other)
  36
  37         Compare two Vectors for equality.
  38
  39     .. py:method:: __add__(self, other)
  40
  41         Add either a Point or Vector to a Vector. The resulting sum is returned as the same structure *other* is.
  42
  43     .. py:method:: __sub__(self, other)
  44
  45         Subtract a Point or Vector from a Vector. The resulting difference is returned in the same form as *other*.
  46
  47     .. py:method:: __mul__(self, other)
  48
  49         Multiply a Vector by a scalar value and returns the result as a Vector.
  50
  51     .. py:method:: __neg__(self)
  52
  53         Negate a Vector.
  54
  55     .. py:method:: norm(self)
  56
  57         Normalizes a Vector.
  58
  59     .. py:method:: isnull(self)
  60
  61         Tests whether a Vector is null.
  62
  63     .. py:method:: angle(self, other)
  64
  65         Retrieve the angle required to rotate the vector into the vector passed in argument. The result is an angle in radians, ranging between -pi and
  66         pi.
  67
  68     .. py:method:: cross(self, other)
  69
  70         Calculate the cross product of two Vector3D structures. If the vectors are not tridimensional, a _____ error is raised.
  71
  72     .. py:method:: dot(self, other)
  73
  74         Calculate the dot product of two vectors.
  75
  76     .. py:method:: __trudiv__(self, other)
  77
  78        Divide the vector by the specified scalar and returns the result as a vector.
  79