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135 lines
4.5 KiB
Python
135 lines
4.5 KiB
Python
from typing import Sequence, Callable, Any
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from pprint import pformat
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import numpy
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from numpy import pi
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from masque import Pattern, Builder, LazyLibrary
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from masque.file.gdsii import writefile, load_libraryfile
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import pcgen
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import basic_shapes
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import devices
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from devices import ports_to_data, data_to_ports
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from basic_shapes import GDS_OPTS
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def main() -> None:
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# Define a `LazyLibrary`, which provides lazy evaluation for generating
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# patterns and lazy-loading of GDS contents.
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lib = LazyLibrary()
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#
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# Load some devices from a GDS file
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#
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# Scan circuit.gds and prepare to lazy-load its contents
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gds_lib, _properties = load_libraryfile('circuit.gds', postprocess=data_to_ports)
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# Add it into the device library by providing a way to read port info
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# This maintains the lazy evaluation from above, so no patterns
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# are actually read yet.
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lib.add(gds_lib)
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print('Patterns loaded from GDS into library:\n' + pformat(list(lib.keys())))
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#
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# Add some new devices to the library, this time from python code rather than GDS
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#
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lib['triangle'] = lambda: basic_shapes.triangle(devices.RADIUS)
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opts: dict[str, Any] = dict(
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lattice_constant = devices.LATTICE_CONSTANT,
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hole = 'triangle',
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)
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# Triangle-based variants. These are defined here, but they won't run until they're
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# retrieved from the library.
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lib['tri_wg10'] = lambda: devices.waveguide(length=10, mirror_periods=5, **opts)
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lib['tri_wg05'] = lambda: devices.waveguide(length=5, mirror_periods=5, **opts)
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lib['tri_wg28'] = lambda: devices.waveguide(length=28, mirror_periods=5, **opts)
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lib['tri_bend0'] = lambda: devices.bend(mirror_periods=5, **opts)
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lib['tri_ysplit'] = lambda: devices.y_splitter(mirror_periods=5, **opts)
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lib['tri_l3cav'] = lambda: devices.perturbed_l3(xy_size=(4, 10), **opts, hole_lib=lib)
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#
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# Build a mixed waveguide with an L3 cavity in the middle
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#
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# Immediately start building from an instance of the L3 cavity
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circ2 = Builder(library=lib, ports='tri_l3cav')
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# First way to get abstracts is `lib.abstract(name)`
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# We can use this syntax directly with `Pattern.plug()` and `Pattern.place()` as well as through `Builder`.
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circ2.plug(lib.abstract('wg10'), {'input': 'right'})
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# Second way to get abstracts is to use an AbstractView
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# This also works directly with `Pattern.plug()` / `Pattern.place()`.
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abstracts = lib.abstract_view()
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circ2.plug(abstracts['wg10'], {'output': 'left'})
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# Third way to specify an abstract works by automatically getting
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# it from the library already within the Builder object.
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# This wouldn't work if we only had a `Pattern` (not a `Builder`).
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# Just pass the pattern name!
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circ2.plug('tri_wg10', {'input': 'right'})
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circ2.plug('tri_wg10', {'output': 'left'})
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# Add the circuit to the device library.
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lib['mixed_wg_cav'] = circ2.pattern
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#
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# Build a device that could plug into our mixed_wg_cav and joins the two ports
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#
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# We'll be designing against an existing device's interface...
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circ3 = Builder.interface(source=circ2)
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# ... that lets us continue from where we left off.
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circ3.plug('tri_bend0', {'input': 'right'})
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circ3.plug('tri_bend0', {'input': 'left'}, mirrored=True) # mirror since no tri y-symmetry
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circ3.plug('tri_bend0', {'input': 'right'})
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circ3.plug('bend0', {'output': 'left'})
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circ3.plug('bend0', {'output': 'left'})
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circ3.plug('bend0', {'output': 'left'})
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circ3.plug('tri_wg10', {'input': 'right'})
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circ3.plug('tri_wg28', {'input': 'right'})
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circ3.plug('tri_wg10', {'input': 'right', 'output': 'left'})
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lib['loop_segment'] = circ3.pattern
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#
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# Write all devices into a GDS file
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#
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print('Writing library to file...')
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writefile(lib, 'library.gds', **GDS_OPTS)
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if __name__ == '__main__':
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main()
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#
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#class prout:
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# def place(
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# self,
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# other: Pattern,
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# label_layer: layer_t = 'WATLAYER',
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# *,
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# port_map: Dict[str, str | None] | None = None,
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# **kwargs,
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# ) -> 'prout':
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#
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# Pattern.place(self, other, port_map=port_map, **kwargs)
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# name: str | None
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# for name in other.ports:
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# if port_map:
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# assert(name is not None)
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# name = port_map.get(name, name)
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# if name is None:
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# continue
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# self.pattern.label(string=name, offset=self.ports[name].offset, layer=label_layer)
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# return self
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#
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