/
grid.py
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grid.py
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"""pack a list of components into a grid """
from typing import Optional, Tuple
import numpy as np
from phidl.device_layout import Group
from gdsfactory.cell import cell
from gdsfactory.component import Component
from gdsfactory.components.text_rectangular import text_rectangular
from gdsfactory.components.triangles import triangle
from gdsfactory.difftest import difftest
from gdsfactory.types import Anchor, ComponentSpec, Float2
@cell
def grid(
components: Optional[Tuple[ComponentSpec, ...]] = None,
spacing: Tuple[float, float] = (5.0, 5.0),
separation: bool = True,
shape: Optional[Tuple[int, int]] = None,
align_x: str = "x",
align_y: str = "y",
edge_x: str = "x",
edge_y: str = "ymax",
rotation: int = 0,
h_mirror: bool = False,
v_mirror: bool = False,
) -> Component:
"""Returns a component with a 1D or 2D grid of components.
Adapted from phidl.geometry
Args:
components: Iterable to be placed onto a grid. (can be 1D or 2D).
spacing: between adjacent elements on the grid, can be a tuple for
different distances in height and width.
separation: If True, guarantees elements are separated with fixed spacing
if False, elements are spaced evenly along a grid.
shape: x, y shape of the grid (see np.reshape).
If no shape and the list is 1D, if np.reshape were run with (1, -1).
align_x: {'x', 'xmin', 'xmax'} for x (column) alignment along.
align_y: {'y', 'ymin', 'ymax'} for y (row) alignment along.
edge_x: {'x', 'xmin', 'xmax'} for x (column) (ignored if separation = True).
edge_y: {'y', 'ymin', 'ymax'} for y (row) along (ignored if separation = True).
rotation: for each component in degrees.
h_mirror: horizontal mirror y axis (x, 1) (1, 0). most common mirror.
v_mirror: vertical mirror using x axis (1, y) (0, y).
Returns:
Component containing all the components in a grid.
.. plot::
:include-source:
import gdsfactory as gf
components = [gf.components.triangle(x=i) for i in range(1, 10)]
c = gf.grid(
components,
shape=(1, len(components)),
rotation=0,
h_mirror=False,
v_mirror=True,
spacing=(100, 100),
)
c.plot()
"""
components = components or [triangle(x=i) for i in range(1, 10)]
device_array = np.asarray(components)
# Check arguments
if device_array.ndim not in (1, 2):
raise ValueError("[PHIDL] grid() The components needs to be 1D or 2D.")
if shape is not None and len(shape) != 2:
raise ValueError(
"grid() shape argument must be None or"
" have a length of 2, for example shape=(4,6)"
)
# Check that shape is valid and reshape array if needed
if (shape is None) and (device_array.ndim == 2): # Already in desired shape
shape = device_array.shape
elif (shape is None) and (device_array.ndim == 1):
shape = (device_array.size, -1)
elif 0 < shape[0] * shape[1] < device_array.size:
raise ValueError("Shape is too small for all the components")
else:
if np.min(shape) == -1:
remainder = np.max(shape) - device_array.size % np.max(shape)
else:
remainder = shape[0] * shape[1] - device_array.size
if remainder != 0:
device_array = np.append(
device_array,
[
None,
]
* remainder,
)
device_array = np.reshape(device_array, shape)
D = Component()
ref_array = np.empty(device_array.shape, dtype=object)
dummy = Component()
for idx, d in np.ndenumerate(device_array):
if d is not None:
d = d() if callable(d) else d
ref = d.ref(rotation=rotation, h_mirror=h_mirror, v_mirror=v_mirror)
D.add(ref)
ref_array[idx] = ref
else:
ref_array[idx] = D << dummy # Create dummy devices
D.aliases[idx] = ref_array[idx]
rows = [Group(ref_array[n, :]) for n in range(ref_array.shape[0])]
cols = [Group(ref_array[:, n]) for n in range(ref_array.shape[1])]
# Align rows and columns independently
for r in rows:
r.align(alignment=align_y)
for c in cols:
c.align(alignment=align_x)
# Distribute rows and columns
Group(cols).distribute(
direction="x", spacing=spacing[0], separation=separation, edge=edge_x
)
Group(rows[::-1]).distribute(
direction="y", spacing=spacing[1], separation=separation, edge=edge_y
)
return D
@cell
def grid_with_text(
components: Optional[Tuple[ComponentSpec, ...]] = None,
text_prefix: str = "",
text_offsets: Tuple[Float2, ...] = ((0, 0),),
text_anchors: Tuple[Anchor, ...] = ("cc",),
text: Optional[ComponentSpec] = text_rectangular,
labels: Optional[Tuple[str, ...]] = None,
**kwargs,
) -> Component:
"""Returns a Component with 1D or 2D grid of components with text labels.
Args:
components: Iterable to be placed onto a grid. (can be 1D or 2D).
text_prefix: for labels. For example. 'A' will produce 'A1', 'A2', ...
text_offsets: relative to component anchor. Defaults to center.
text_anchors: relative to component (ce cw nc ne nw sc se sw center cc).
text: function to add text labels.
labels: optional, specify a tuple of labels rather than using a text_prefix
keyword Args:
spacing: between adjacent elements on the grid, can be a tuple for
different distances in height and width.
separation: If True, guarantees elements are separated with fixed spacing
if False, elements are spaced evenly along a grid.
shape: x, y shape of the grid (see np.reshape).
If no shape and the list is 1D, if np.reshape were run with (1, -1).
align_x: {'x', 'xmin', 'xmax'}
to perform the x (column) alignment along
align_y: {'y', 'ymin', 'ymax'}
to perform the y (row) alignment along
edge_x: {'x', 'xmin', 'xmax'}
to perform the x (column) distribution (ignored if separation = True)
edge_y: {'y', 'ymin', 'ymax'}
to perform the y (row) distribution along (ignored if separation = True)
rotation: for each reference in degrees.
.. plot::
:include-source:
import gdsfactory as gf
components = [gf.components.triangle(x=i) for i in range(1, 10)]
c = gf.grid_with_text(
components,
shape=(1, len(components)),
rotation=0,
h_mirror=False,
v_mirror=True,
spacing=(100, 100),
text_offsets=((0, 100), (0, -100)),
text_anchors=("nc", "sc"),
)
c.plot()
"""
c = Component()
g = grid(components=components, **kwargs)
c << g
if text:
for i, ref in enumerate(g.aliases.values()):
for text_offset, text_anchor in zip(text_offsets, text_anchors):
if labels:
if len(labels) > i:
label = labels[i]
# grid will add dummy components so don't add labels for these
else:
continue
else:
label = f"{text_prefix}{i}"
t = c << text(label)
t.move(np.array(text_offset) + getattr(ref.size_info, text_anchor))
return c
def test_grid():
import gdsfactory as gf
components = [gf.components.rectangle(size=(i, i)) for i in range(1, 10)]
c = grid(components)
difftest(c)
return c
if __name__ == "__main__":
import gdsfactory as gf
# components = [gf.components.rectangle(size=(i, i)) for i in range(40, 66, 5)]
# components = [gf.components.rectangle(size=(i, i)) for i in range(40, 66, 5)]
c = [gf.components.triangle(x=i) for i in range(1, 10)]
c = grid(
# c,
shape=(1, len(c)),
rotation=0,
h_mirror=False,
v_mirror=True,
spacing=(100, 100),
# text_offsets=((0, 100), (0, -100)),
# text_anchors=("nc", "sc"),
)
c.show(show_ports=True)