[iv_tern]

Typo on my part, meant to say replace with strt_p2p. For some reason I thought taper_p2p was around for much longer.

[iv_tern]

Apologies, the lines about the pins are referring to trs pin2=trs.pin[‘a0’], as the original names are slightly long and convoluted, I edited it for clarity’s sake. It turns out that it is however a cell, not an instance.

Fixed the issue – it turns out that this makes an instance

trs=testpat.obj().put()

and this makes a cell

trs=testpat.obj.()

trs.put()

[iv_tern]

Dear Ronald, thank you very much for your prompt response – this is almost what I’m looking for.

If I run the following code:

import nazca as nd

nd.clear_layers()
nd.clear_layout()

toy_points1=[(0,0), (0,7), (10, 14), (0,25)]
toy_points2=[(0,0), (0,15), (10, 14), (0,20)]

with nd.Cell('toy_poly1') as tp1:
    toy_polygon1=nd.Polygon(points=toy_points1, layer=1).put(0)
    nd.Pin('a0').put(0, 0, 180)
    nd.Pin('b0').put(10, 2.5, 0)

with nd.Cell('toy_poly2') as tp2:
    toy_polygon2=nd.Polygon(points=toy_points2, layer=1).put(0)
    nd.Pin('a0').put(0, 0, 180)
    nd.Pin('b0').put(10, 2.5, 0)

p1 = tp1.put(0,0,0)
p2 = tp2.put(40,40,90)

print("points in original polygon:")
for NT in nd.cell_iter(p1):  # NT is a named tuple object
    if NT.cell_start:
        print(f"\ncell: '{NT.cell.cell_name}'")
        for i, (pgon, points, bbox) in enumerate(NT.iters['polygon']):
            print(f"{i}: points: {pgon.points}, layer: '{pgon.layer}'")

print("points in original polygon:")
for NT in nd.cell_iter(p2):  # NT is a named tuple objec
    if NT.cell_start:
        print(f"\ncell: '{NT.cell.cell_name}'")
        for i, (pgon, points, bbox) in enumerate(NT.iters['polygon']):
            print(f"{i}: points: {pgon.points}, layer: '{pgon.layer}'")

I get this output:

points in original polygon:

cell: 'toy_poly1'
0: points: [(0, 0), (0, 7), (10, 14), (0, 25)], layer: '1/0/None'
points in original polygon:

cell: 'toy_poly2'
0: points: [(0, 0), (0, 15), (10, 14), (0, 20)], layer: '1/0/None'

Whereas I’m looking for the output, that takes into account the fact that p2 has been .put at 40,40 and rotated 90. I.e. I’m interested in the points with the origin of the entire mask, as opposed to the origin of the top cell, if this makes sense.

Regards,
iv_tern

[iv_tern]

Thank you for your input!

One final question, if that’s ok – is there any way to get the coordinates of all the points in an interconnect (i.e. where in the object properties as those stores?) I.e. doing the reverse of the tutorial example of placing a polygon, where we give a list of points and then use nd.Polygon(points=pts, layer=’layer’).put(coords).

Let me know if this isn’t clear, and I can try to elaborate.

[iv_tern]

Was just about to make a new topic for this, but it seemed very closely related.

For the cobra_p2p() method, is the taper always linear? I am looking to do some polynomial tapers, but I haven’t managed to figure out a way to do it via viper.

Apologies, if this has been covered somewhere, my search didn’t reveal anything.

[Author]

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