Coords

Implementations:

• Coords_1D
  A single coordinate.
• Coords_2D
  A pair of coordinates.
• Coords_ND
  A vector of coordinates. Constructor args: int num_coords.
• TCoords_ND
  A vector of coordinates. Template parameter: int num_coords.

• coord: Coords . int -> double
  Returns the coordinate on the given dimension.
• num_coords: Coords -> int
  Returns the number of coordinates.
• set_coord: Coords . int . double -> void
  Sets the coordinate on the given dimension.

• add: Coords . Coords . Coords -> void
  Sets the coordinates of the third from the sum of the coordinates of the first two.
• bbox: CoordsContainer . Coords min . Coords max -> void
  Sets the coordinates of min and max from the bounding box of the coordinates in the container.
• centroid: CoordsContainer . Coords c -> void
  Sets the coordinates of c from the centroid of the coordinates in the container.
• compare: Coords . Coords c -> int
  Returns -1, 0, or 1 for less-than, equal-to, greater-than.
• construct: Coords . c1 . c2 .... -> void
  Sets the coordinates.
• copy: Coords . Coords -> void
  Sets the coordinates of the second from the first.
• cosangle: Coords p . Coords r . Coords q -> double
  Returns the cosine of the angle prq. 2D coords only.
• distance_euclidean: Coords . Coords -> double
  Returns the euclidean distance between the coords.
• distance_euclidean2: Coords . Coords -> double
  Returns the squared euclidean distance between the coords.
• dot: Coords . Coords -> double
  Returns the dot product of the coords.
• enumerate_coords_by_axis: Coords min . Coords max . Coords delta . CoordsContainer -> void
  Steps through coordinate system from min to max by delta, storing Coords in the sequence. Dimension 0 is the outer loop, dimension 1 is the next-to-outer, etc.
• less_than: Geom . Geom -> bool
  Returns whether or not the first is lexicographically less than the second.
• normalize: Coords . Coords -> void
  Sets the coordinates to be of unit length.
• orient: Coords . Coords . Coords -> int
  Returns 1 if the sequence of coords goes clockwise (right); -1 if it goes left. 2D coords only.
• pseudocos: Coords p . Coords r . Coords q -> int
  For angles very close to 0 or to pi, returns approximately (1 - cos prq) or (1 + cos prq) respectively. 2D coords only.
• scale: Coords . double . Coords -> void
  Sets the coordinates of the second by scaling those of the first.
• subtract: Coords . Coords . Coords -> void
  Sets the coordinates of the third from the difference of the coordinates of the first two.
• vector_length: Coords -> void
  Returns the length of the vector defined by the coordinates.
• vector_length2: Coords -> void
  Returns the squared length of the vector defined by the coordinates.