get_acute_angle_points

ipkiss3.all.get_acute_angle_points(layout, layers=[], angle_threshold=0.0)

Returns a dictionary of points that form an acute angle per given layer in a given layout.

The layout gets flattened and the elements on the same layer are merged together before determining the acute angles. The returned points are snapped to the grid.

Parameters

layout: Layout data or LayoutView of a PCell or ElementList

The Layout data or LayoutView of a PCell or ElementList

layers: list

List of layers that need to be inspected. If it is empty then all layers are inspected.

angle_threshold: float

An extra threshold for acute angles. For instance, if angle_threshold=0.5, angles that are smaller than 89.5 and bigger than 270.5 will be returned instead of the default <90 and >270.

Returns

collection: defaultdict

A dictionary with, per layer, a nested list of acute angles (degrees) and the points that make up those angles. For instance: {TECH.PPLAYER.WG.CORE: [(acute point, (previous point, next point), acute angle in degrees), …]}

Examples

import ipkiss3.all as i3

class SharpShape(i3.PCell):
    class Layout(i3.LayoutView):
        def _generate_elements(self, elems):
            elems += i3.Boundary(
                layer=i3.Layer(0),
                 shape=[(0,0), (40,30), (10,30), (-10,10), (20,20), (0,0)])
            return elems

cell = SharpShape()
cell_lay = cell.Layout()

print(i3.get_acute_angle_points(cell_lay, layers=[i3.Layer(0)]))
print(i3.get_acute_angle_points(cell_lay.layout))

cell_lay.visualize()