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506 lines
18 KiB
Python
506 lines
18 KiB
Python
from typing import Self, Sequence, Mapping
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import copy
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import logging
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from collections import defaultdict
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import numpy
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from numpy import pi
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from numpy.typing import ArrayLike
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from ..pattern import Pattern
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from ..ref import Ref
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from ..library import ILibrary
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from ..error import PortError, BuildError
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from ..ports import PortList, Port
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from ..abstract import Abstract
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from ..utils import rotation_matrix_2d
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from ..utils import SupportsBool
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from .tools import Tool, RenderStep
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from .utils import ell
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from .builder import Builder
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logger = logging.getLogger(__name__)
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class RenderPather(PortList):
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__slots__ = ('pattern', 'library', 'paths', 'tools', '_dead', )
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pattern: Pattern
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""" Layout of this device """
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library: ILibrary | None
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""" Library from which patterns should be referenced """
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_dead: bool
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""" If True, plug()/place() are skipped (for debugging) """
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paths: defaultdict[str, list[RenderStep]]
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tools: dict[str | None, Tool]
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"""
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Tool objects are used to dynamically generate new single-use Devices
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(e.g wires or waveguides) to be plugged into this device.
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"""
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@property
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def ports(self) -> dict[str, Port]:
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return self.pattern.ports
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@ports.setter
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def ports(self, value: dict[str, Port]) -> None:
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self.pattern.ports = value
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def __init__(
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self,
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library: ILibrary | None = None,
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*,
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pattern: Pattern | None = None,
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ports: str | Mapping[str, Port] | None = None,
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name: str | None = None,
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) -> None:
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"""
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# TODO documentation for Builder() constructor
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"""
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self._dead = False
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self.library = library
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if pattern is not None:
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self.pattern = pattern
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else:
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self.pattern = Pattern()
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if ports is not None:
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if self.pattern.ports:
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raise BuildError('Ports supplied for pattern with pre-existing ports!')
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if isinstance(ports, str):
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if library is None:
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raise BuildError('Ports given as a string, but `library` was `None`!')
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ports = library.abstract(ports).ports
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self.pattern.ports.update(copy.deepcopy(dict(ports)))
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if name is not None:
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if library is None:
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raise BuildError('Name was supplied, but no library was given!')
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library[name] = self.pattern
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self.paths = defaultdict(list)
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@classmethod
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def interface(
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cls,
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source: PortList | Mapping[str, Port] | str,
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*,
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library: ILibrary | None = None,
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in_prefix: str = 'in_',
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out_prefix: str = '',
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port_map: dict[str, str] | Sequence[str] | None = None,
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name: str | None = None,
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) -> 'RenderPather':
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"""
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Begin building a new device based on all or some of the ports in the
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source device. Do not include the source device; instead use it
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to define ports (the "interface") for the new device.
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The ports specified by `port_map` (default: all ports) are copied to
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new device, and additional (input) ports are created facing in the
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opposite directions. The specified `in_prefix` and `out_prefix` are
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prepended to the port names to differentiate them.
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By default, the flipped ports are given an 'in_' prefix and unflipped
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ports keep their original names, enabling intuitive construction of
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a device that will "plug into" the current device; the 'in_*' ports
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are used for plugging the devices together while the original port
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names are used for building the new device.
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Another use-case could be to build the new device using the 'in_'
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ports, creating a new device which could be used in place of the
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current device.
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Args:
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source: A collection of ports (e.g. Pattern, Builder, or dict)
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from which to create the interface.
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library: Used for buildin functions; if not passed and the source
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library: Library from which existing patterns should be referenced,
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and to which new ones should be added. If not provided,
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the source's library will be used (if available).
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in_prefix: Prepended to port names for newly-created ports with
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reversed directions compared to the current device.
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out_prefix: Prepended to port names for ports which are directly
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copied from the current device.
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port_map: Specification for ports to copy into the new device:
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- If `None`, all ports are copied.
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- If a sequence, only the listed ports are copied
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- If a mapping, the listed ports (keys) are copied and
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renamed (to the values).
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Returns:
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The new builder, with an empty pattern and 2x as many ports as
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listed in port_map.
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Raises:
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`PortError` if `port_map` contains port names not present in the
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current device.
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`PortError` if applying the prefixes results in duplicate port
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names.
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"""
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if library is None:
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if hasattr(source, 'library') and isinstance(source.library, ILibrary):
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library = source.library
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if isinstance(source, str):
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if library is None:
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raise BuildError('Source given as a string, but `library` was `None`!')
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orig_ports = library.abstract(source).ports
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elif isinstance(source, PortList):
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orig_ports = source.ports
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elif isinstance(source, dict):
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orig_ports = source
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else:
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raise BuildError(f'Unable to get ports from {type(source)}: {source}')
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if port_map:
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if isinstance(port_map, dict):
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missing_inkeys = set(port_map.keys()) - set(orig_ports.keys())
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mapped_ports = {port_map[k]: v for k, v in orig_ports.items() if k in port_map}
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else:
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port_set = set(port_map)
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missing_inkeys = port_set - set(orig_ports.keys())
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mapped_ports = {k: v for k, v in orig_ports.items() if k in port_set}
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if missing_inkeys:
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raise PortError(f'`port_map` keys not present in source: {missing_inkeys}')
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else:
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mapped_ports = orig_ports
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ports_in = {f'{in_prefix}{pname}': port.deepcopy().rotate(pi)
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for pname, port in mapped_ports.items()}
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ports_out = {f'{out_prefix}{pname}': port.deepcopy()
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for pname, port in mapped_ports.items()}
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duplicates = set(ports_out.keys()) & set(ports_in.keys())
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if duplicates:
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raise PortError(f'Duplicate keys after prefixing, try a different prefix: {duplicates}')
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new = RenderPather(library=library, ports={**ports_in, **ports_out}, name=name)
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return new
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def plug(
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self,
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other: Abstract | str,
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map_in: dict[str, str],
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map_out: dict[str, str | None] | None = None,
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*,
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mirrored: tuple[bool, bool] = (False, False),
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inherit_name: bool = True,
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set_rotation: bool | None = None,
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) -> Self:
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if self._dead:
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logger.error('Skipping plug() since device is dead')
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return self
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if isinstance(other, str):
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if self.library is None:
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raise BuildError('No library available, but `other` was a string!')
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other = self.library.abstract(other)
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# If asked to inherit a name, check that all conditions are met
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if (inherit_name
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and not map_out
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and len(map_in) == 1
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and len(other.ports) == 2):
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out_port_name = next(iter(set(other.ports.keys()) - set(map_in.values())))
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map_out = {out_port_name: next(iter(map_in.keys()))}
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if map_out is None:
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map_out = {}
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map_out = copy.deepcopy(map_out)
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self.check_ports(other.ports.keys(), map_in, map_out)
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translation, rotation, pivot = self.find_transform(
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other,
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map_in,
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mirrored=mirrored,
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set_rotation=set_rotation,
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)
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# get rid of plugged ports
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for ki, vi in map_in.items():
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if ki in self.paths:
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self.paths[ki].append(RenderStep('P', None, self.ports[ki].copy(), None))
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del self.ports[ki]
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map_out[vi] = None
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self.place(other, offset=translation, rotation=rotation, pivot=pivot,
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mirrored=mirrored, port_map=map_out, skip_port_check=True)
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return self
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def place(
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self,
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other: Abstract | str,
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*,
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offset: ArrayLike = (0, 0),
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rotation: float = 0,
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pivot: ArrayLike = (0, 0),
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mirrored: tuple[bool, bool] = (False, False),
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port_map: dict[str, str | None] | None = None,
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skip_port_check: bool = False,
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) -> Self:
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if self._dead:
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logger.error('Skipping place() since device is dead')
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return self
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if isinstance(other, str):
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if self.library is None:
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raise BuildError('No library available, but `other` was a string!')
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other = self.library.abstract(other)
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if port_map is None:
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port_map = {}
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if not skip_port_check:
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self.check_ports(other.ports.keys(), map_in=None, map_out=port_map)
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ports = {}
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for name, port in other.ports.items():
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new_name = port_map.get(name, name)
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if new_name is None:
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continue
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ports[new_name] = port
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if new_name in self.paths:
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self.paths[new_name].append(RenderStep('P', None, port.copy(), None))
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for name, port in ports.items():
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p = port.deepcopy()
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p.mirror2d(mirrored)
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p.rotate_around(pivot, rotation)
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p.translate(offset)
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self.ports[name] = p
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ref = Ref(mirrored=mirrored)
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ref.rotate_around(pivot, rotation)
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ref.translate(offset)
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self.pattern.refs[other.name].append(ref)
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return self
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def path(
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self,
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portspec: str,
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ccw: SupportsBool | None,
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length: float,
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**kwargs,
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) -> Self:
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if self._dead:
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logger.error('Skipping path() since device is dead')
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return self
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port = self.pattern[portspec]
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in_ptype = port.ptype
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port_rot = port.rotation
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assert port_rot is not None # TODO allow manually setting rotation?
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tool = self.tools.get(portspec, self.tools[None])
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# ask the tool for bend size (fill missing dx or dy), check feasibility, and get out_ptype
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data = tool.planL(ccw, length, in_ptype=in_ptype, **kwargs)
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step = RenderStep('L', tool, port.copy(), data)
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self.paths[portspec].append(step)
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# Update port
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port.offset += (dx, dy)
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if ccw is not None:
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port.rotate((-1 if ccw else 1) * pi / 2)
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port.ptype = out_ptype
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return self
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'''
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- record ('path', port, dx, dy, out_ptype, tool)
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- to render, ccw = {0: None, 1: True, -1: False}[numpy.sign(dx) * numpy.sign(dy) * (-1 if x_start else 1)
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- length is just dx or dy
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- in_ptype and out_ptype are taken directly
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- for sbend: dx and dy are maybe reordered (length and jog)
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'''
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def path_to(
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self,
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portspec: str,
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ccw: SupportsBool | None,
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position: float,
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**kwargs,
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) -> Self:
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if self._dead:
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logger.error('Skipping path_to() since device is dead')
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return self
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port = self.pattern[portspec]
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x, y = port.offset
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if port.rotation is None:
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raise PortError(f'Port {portspec} has no rotation and cannot be used for path_to()')
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if not numpy.isclose(port.rotation % (pi / 2), 0):
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raise BuildError('path_to was asked to route from non-manhattan port')
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is_horizontal = numpy.isclose(port.rotation % pi, 0)
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if is_horizontal:
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if numpy.sign(numpy.cos(port.rotation)) == numpy.sign(position - x):
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raise BuildError(f'path_to routing to behind source port: x={x:g} to {position:g}')
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length = numpy.abs(position - x)
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else:
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if numpy.sign(numpy.sin(port.rotation)) == numpy.sign(position - y):
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raise BuildError(f'path_to routing to behind source port: y={y:g} to {position:g}')
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length = numpy.abs(position - y)
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return self.path(portspec, ccw, length, **kwargs)
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def mpath(
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self,
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portspec: str | Sequence[str],
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ccw: SupportsBool | None,
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*,
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spacing: float | ArrayLike | None = None,
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set_rotation: float | None = None,
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**kwargs,
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) -> Self:
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if self._dead:
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logger.error('Skipping mpath() since device is dead')
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return self
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bound_types = set()
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if 'bound_type' in kwargs:
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bound_types.add(kwargs['bound_type'])
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bound = kwargs['bound']
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for bt in ('emin', 'emax', 'pmin', 'pmax', 'min_past_furthest'):
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if bt in kwargs:
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bound_types.add(bt)
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bound = kwargs[bt]
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if not bound_types:
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raise BuildError('No bound type specified for mpath')
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elif len(bound_types) > 1:
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raise BuildError(f'Too many bound types specified for mpath: {bound_types}')
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bound_type = tuple(bound_types)[0]
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if isinstance(portspec, str):
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portspec = [portspec]
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ports = self.pattern[tuple(portspec)]
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extensions = ell(ports, ccw, spacing=spacing, bound=bound, bound_type=bound_type, set_rotation=set_rotation)
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if len(ports) == 1:
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# Not a bus, so having a container just adds noise to the layout
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port_name = tuple(portspec)[0]
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self.path(port_name, ccw, extensions[port_name])
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else:
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for port_name, length in extensions.items():
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self.path(port_name, ccw, length)
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return self
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def render(self, lib: ILibrary | None = None) -> Self:
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lib = lib if lib is not None else self.library
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assert lib is not None
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tool_port_names = ('A', 'B')
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bb = Builder(lib)
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for portspec, steps in self.paths.items():
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batch: list[RenderStep] = []
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tool0 = batch[0].tool
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port0 = batch[0].start_port
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assert tool0 is not None
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for step in steps:
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appendable_op = step.opcode in ('L', 'S', 'U')
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same_tool = batch and step.tool == tool0
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if batch and (not appendable_op or not same_tool):
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# If we can't continue a batch, render it
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assert batch[0].tool is not None
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name = lib << batch[0].tool.render(batch, port_names=tool_port_names)
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bb.ports[portspec] = port0.copy()
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bb.plug(name, {portspec: tool_port_names[0]})
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batch = []
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# batch is emptied already if we couldn't
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if appendable_op:
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batch.append(step)
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# Opcodes which break the batch go below this line
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if not appendable_op:
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del bb.ports[portspec]
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if batch:
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# A batch didn't end yet
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assert batch[0].tool is not None
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name = lib << batch[0].tool.render(batch, port_names=tool_port_names)
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bb.ports[portspec] = batch[0].start_port.copy()
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bb.plug(name, {portspec: tool_port_names[0]})
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bb.ports.clear()
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self.pattern.append(bb.pattern)
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return self
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def translate(self, offset: ArrayLike) -> Self:
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"""
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Translate the pattern and all ports.
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Args:
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offset: (x, y) distance to translate by
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Returns:
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self
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"""
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self.pattern.translate_elements(offset)
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return self
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def rotate_around(self, pivot: ArrayLike, angle: float) -> Self:
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"""
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Rotate the pattern and all ports.
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Args:
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angle: angle (radians, counterclockwise) to rotate by
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pivot: location to rotate around
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Returns:
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self
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"""
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self.pattern.rotate_around(pivot, angle)
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return self
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def mirror(self, axis: int) -> Self:
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"""
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Mirror the pattern and all ports across the specified axis.
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Args:
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axis: Axis to mirror across (x=0, y=1)
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Returns:
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self
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"""
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self.pattern.mirror(axis)
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return self
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def set_dead(self) -> Self:
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"""
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Disallows further changes through `plug()` or `place()`.
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This is meant for debugging:
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```
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dev.plug(a, ...)
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dev.set_dead() # added for debug purposes
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dev.plug(b, ...) # usually raises an error, but now skipped
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dev.plug(c, ...) # also skipped
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dev.pattern.visualize() # shows the device as of the set_dead() call
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```
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Returns:
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self
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"""
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self._dead = True
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return self
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def __repr__(self) -> str:
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s = f'<RenderPather {self.pattern} >' # TODO maybe show lib and tools? in builder repr?
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return s
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