get_layer_overlaps

ipkiss3.all.get_layer_overlaps(layout, layers)

Finds overlapping geometries between all shapes in each specified layer of a layout.

Parameters:

layout: Layout data of a PCell

Layout data of a PCell.

layers: list[Layer]

List of layers to inspect.

Returns:

overlap_elems: Dict

Dictionary of IPKISS layers as keys, with the overlapping geometries as elements in that layer.

Examples

import si_fab.all as pdk
import ipkiss3.all as i3

class OverlappingDesign(i3.PCell):
    class Layout(i3.LayoutView):
        def _generate_elements(self, elems):
            elems += i3.Rectangle(layer=i3.TECH.PPLAYER.SI, center=(0, 0), box_size=(10, 10))
            elems += i3.Rectangle(layer=i3.TECH.PPLAYER.SI, center=(5, 5), box_size=(10, 10))
            elems += i3.Rectangle(layer=i3.TECH.PPLAYER.SIN, center=(15, 15), box_size=(10, 10))
            elems += i3.Rectangle(layer=i3.TECH.PPLAYER.SIN, center=(20, 20), box_size=(10, 10))
            return elems

cell = OverlappingDesign()
cell_lay = cell.Layout()
cell_lay.visualize()

overlapping_elements = i3.get_layer_overlaps(cell_lay, [i3.TECH.PPLAYER.SI, i3.TECH.PPLAYER.SIN])

# Copy the overlapping elements into a crossing error layer and visualize them.
si_elems = [
     b.modified_copy(layer=i3.TECH.PPLAYER.ERROR.CROSSING) for b in overlapping_elements[i3.TECH.PPLAYER.SI]
 ]
sin_elems = [
     b.modified_copy(layer=i3.TECH.PPLAYER.ERROR.CROSSING) for b in overlapping_elements[i3.TECH.PPLAYER.SIN]
 ]

i3.LayoutCell().Layout(elements=si_elems + sin_elems).visualize()