ivy.layout_polar module

class ivy.layout_polar.Coordinates[source]
ivy.layout_polar.calc_node_positions(node, radius=1.0, pole=None, start=0, end=None, direction=1, scaled=False, n2coords=None)[source]

Calculate where nodes should be positioned in 2d space for drawing a polar tree

Parameters:
  • node (Node) – A (root) node
  • radius (float) – The radius of the tree. Optional, defaults to 1
  • pole (tuple) – Tuple of floats. The cartesian coordinate of the pole. Optional, defaults to None.
  • end (float) – Where the tree ends. For best results, between 0 and 360. Optional, defaults to None.
  • direction – CLOCKWISE or COUNTERCLOCKWISE. The direction the tree is drawn. Optional, defaults to COUNTERCLOCKWISE
  • scaled (bool) – Whether or not the tree is scaled. Optional, defaults to False.
Returns:

Mapping of nodes to Coordinates object
Return type:

dict
ivy.layout_polar.depth_length_preorder_traversal(node, n2coords=None)[source]

Calculate node depth (root = depth 0) and length to root

Parameters:node (Node) – A node object.
Returns:Mapping of nodes to coordinates instances. Coordinate instances have attributes “depth” and “length_to_root”
Return type:dict
ivy.layout_polar.smooth_xpos(node, n2coords)[source]
ivy.layout_polar.test()[source]