renderpather, get_bounds includes repetitions, Boundable

masque/__init__.py

@@ -41,7 +41,7 @@ from .library import (
     )
 from .ports import Port, PortList
 from .abstract import Abstract
-from .builder import Builder, Tool, Pather, RenderPather, render_step_t
+from .builder import Builder, Tool, Pather, RenderPather, RenderStep
 from .utils import ports2data, oneshot
 
 

masque/builder/__init__.py

@@ -2,4 +2,4 @@ from .builder import Builder
 from .pather import Pather
 from .renderpather import RenderPather
 from .utils import ell
-from .tools import Tool, render_step_t
+from .tools import Tool, RenderStep

masque/builder/renderpather.py

@@ -1,4 +1,4 @@
-from typing import Self, Sequence, Mapping, Final
+from typing import Self, Sequence, Mapping
 import copy
 import logging
 from collections import defaultdict
@@ -15,7 +15,7 @@ from ..ports import PortList, Port
 from ..abstract import Abstract
 from ..utils import rotation_matrix_2d
 from ..utils import SupportsBool
-from .tools import Tool, render_step_t
+from .tools import Tool, RenderStep
 from .utils import ell
 from .builder import Builder
 
@@ -35,8 +35,7 @@ class RenderPather(PortList):
     _dead: bool
     """ If True, plug()/place() are skipped (for debugging) """
 
-    paths: defaultdict[str, list[render_step_t]]
-#       op, start_port, dx, dy, o_ptype tool
+    paths: defaultdict[str, list[RenderStep]]
 
     tools: dict[str | None, Tool]
     """
@@ -228,11 +227,10 @@ class RenderPather(PortList):
 
         # get rid of plugged ports
         for ki, vi in map_in.items():
+            if ki in self.paths:
+                self.paths[ki].append(RenderStep('P', None, self.ports[ki].copy(), None))
             del self.ports[ki]
             map_out[vi] = None
-            if ki in self.paths:
-                self.paths[ki].append(('P', None, 0.0, 0.0, 'unk', None))
-
         self.place(other, offset=translation, rotation=rotation, pivot=pivot,
                    mirrored=mirrored, port_map=map_out, skip_port_check=True)
         return self
@@ -270,7 +268,7 @@ class RenderPather(PortList):
                 continue
             ports[new_name] = port
             if new_name in self.paths:
-                self.paths[new_name].append(('P', None, 0.0, 0.0, 'unk', None))
+                self.paths[new_name].append(RenderStep('P', None, port.copy(), None))
 
         for name, port in ports.items():
             p = port.deepcopy()
@@ -303,18 +301,9 @@ class RenderPather(PortList):
 
         tool = self.tools.get(portspec, self.tools[None])
         # ask the tool for bend size (fill missing dx or dy), check feasibility, and get out_ptype
-        bend_radius, out_ptype = tool.planL(ccw, length, in_ptype=in_ptype, **kwargs)
+        data = tool.planL(ccw, length, in_ptype=in_ptype, **kwargs)
 
-        if ccw is None:
-            bend_run = 0.0
-        elif bool(ccw):
-            bend_run = bend_radius
-        else:
-            bend_run = -bend_radius
-
-        dx, dy = rotation_matrix_2d(port_rot + pi) @ [length, bend_run]
-
-        step: Final = ('L', port.deepcopy(), dx, dy, out_ptype, tool)
+        step = RenderStep('L', tool, port.copy(), data)
         self.paths[portspec].append(step)
 
         # Update port
@@ -415,19 +404,19 @@ class RenderPather(PortList):
         bb = Builder(lib)
 
         for portspec, steps in self.paths.items():
-            batch: list[render_step_t] = []
+            batch: list[RenderStep] = []
+            tool0 = batch[0].tool
+            port0 = batch[0].start_port
+            assert tool0 is not None
             for step in steps:
-                opcode, _start_port, _dx, _dy, _out_ptype, tool = step
-
-                appendable_op = opcode in ('L', 'S', 'U')
-                same_tool = batch and tool == batch[-1]
+                appendable_op = step.opcode in ('L', 'S', 'U')
+                same_tool = batch and step.tool == tool0
 
                 if batch and (not appendable_op or not same_tool):
                     # If we can't continue a batch, render it
-                    assert tool is not None
-                    assert batch[0][1] is not None
-                    name = lib << tool.render(batch, portnames=tool_port_names)
-                    bb.ports[portspec] = batch[0][1]
+                    assert batch[0].tool is not None
+                    name = lib << batch[0].tool.render(batch, port_names=tool_port_names)
+                    bb.ports[portspec] = port0.copy()
                     bb.plug(name, {portspec: tool_port_names[0]})
                     batch = []
 
@@ -441,10 +430,9 @@ class RenderPather(PortList):
 
             if batch:
                 # A batch didn't end yet
-                assert tool is not None
-                assert batch[0][1] is not None
-                name = lib << tool.render(batch, portnames=tool_port_names)
-                bb.ports[portspec] = batch[0][1]
+                assert batch[0].tool is not None
+                name = lib << batch[0].tool.render(batch, port_names=tool_port_names)
+                bb.ports[portspec] = batch[0].start_port.copy()
                 bb.plug(name, {portspec: tool_port_names[0]})
 
         bb.ports.clear()

masque/builder/tools.py

@@ -1,12 +1,14 @@
 """
 Tools are objects which dynamically generate simple single-use devices (e.g. wires or waveguides)
 """
-from typing import Sequence, Literal, Callable
-from abc import ABCMeta, abstractmethod
+from typing import Sequence, Literal, Callable, Any
+from abc import ABCMeta, abstractmethod     # TODO any way to make Tool ok with implementing only one method?
+from dataclasses import dataclass
 
 import numpy
+from numpy import pi
 
-from ..utils import SupportsBool, rotation_matrix_2d
+from ..utils import SupportsBool, rotation_matrix_2d, layer_t
 from ..ports import Port
 from ..pattern import Pattern
 from ..abstract import Abstract
@@ -15,10 +17,16 @@ from ..error import BuildError
 from .builder import Builder
 
 
-render_step_t = (
-    tuple[Literal['L', 'S', 'U'], Port, float, float, str, 'Tool']
-    | tuple[Literal['P'], None, float, float, str, None]
-    )
+@dataclass(frozen=True, slots=True)
+class RenderStep:
+    opcode: Literal['L', 'S', 'U', 'P']
+    tool: 'Tool' | None
+    start_port: Port
+    data: Any
+
+    def __post_init__(self) -> None:
+        if self.opcode != 'P' and self.tool is None:
+            raise BuildError('Got tool=None but the opcode is not "P"')
 
 
 class Tool:
@@ -42,7 +50,7 @@ class Tool:
             in_ptype: str | None = None,
             out_ptype: str | None = None,
             **kwargs,
-            ) -> tuple[float, str]:
+            ) -> Any:
         raise NotImplementedError(f'planL() not implemented for {type(self)}')
 
     def planS(
@@ -54,26 +62,30 @@ class Tool:
             in_ptype: str | None = None,
             out_ptype: str | None = None,
             **kwargs,
-            ) -> str:       # out_ptype only?
+            ) -> Any:
         raise NotImplementedError(f'planS() not implemented for {type(self)}')
 
     def render(
             self,
-            batch: Sequence[render_step_t],
+            batch: Sequence[RenderStep],
             *,
             in_ptype: str | None = None,
             out_ptype: str | None = None,
             port_names: Sequence[str] = ('A', 'B'),
             **kwargs,
             ) -> ILibrary:
-        assert batch[0][-1] == self
+        assert not batch or batch[0].tool == self
         raise NotImplementedError(f'render() not implemented for {type(self)}')
 
 
+abstract_tuple_t = tuple[Abstract, str, str]
+
+
 class BasicTool(Tool, metaclass=ABCMeta):
     straight: tuple[Callable[[float], Pattern], str, str]
-    bend: tuple[Abstract, str, str]             # Assumed to be clockwise
-    transitions: dict[str, tuple[Abstract, str, str]]
+    bend: abstract_tuple_t             # Assumed to be clockwise
+    transitions: dict[str, abstract_tuple_t]
+    default_out_ptype: str
 
     def path(
             self,
@@ -85,25 +97,62 @@ class BasicTool(Tool, metaclass=ABCMeta):
             port_names: tuple[str, str] = ('A', 'B'),
             **kwargs,
             ) -> Pattern:
+        straight_length, _ccw, in_transition, out_transition = self.planL(
+            ccw,
+            length,
+            in_ptype=in_ptype,
+            out_ptype=out_ptype,
+            )
 
-        # TODO check all the math for L-shaped bends
-        straight_length = length
-        bend_run = 0
+        gen_straight, sport_in, sport_out = self.straight
+        tree = Library()
+        bb = Builder(library=tree, name='_path').add_port_pair(names=port_names)
+        if in_transition:
+            ipat, iport_theirs, _iport_ours = in_transition
+            bb.plug(ipat, {port_names[1]: iport_theirs})
+        if not numpy.isclose(straight_length, 0):
+            straight = tree << {'_straight': gen_straight(straight_length)}
+            bb.plug(straight, {port_names[1]: sport_in})
         if ccw is not None:
             bend, bport_in, bport_out = self.bend
-            brot = bend.ports[bport_in].rotation
-            assert brot is not None
-            bend_dxy = numpy.abs(
-                rotation_matrix_2d(-brot) @ (
-                    bend.ports[bport_out].offset
-                    - bend.ports[bport_in].offset
-                    )
+            bb.plug(bend, {port_names[1]: bport_in}, mirrored=(False, bool(ccw)))
+        if out_transition:
+            opat, oport_theirs, oport_ours = out_transition
+            bb.plug(opat, {port_names[1]: oport_ours})
+
+        return bb.pattern
+
+    def planL(
+            self,
+            ccw: SupportsBool | None,
+            length: float,
+            *,
+            in_ptype: str | None = None,
+            out_ptype: str | None = None,
+            **kwargs,
+            ) -> tuple[float, SupportsBool | None, abstract_tuple_t | None, abstract_tuple_t | None]:
+        # TODO check all the math for L-shaped bends
+        if ccw is not None:
+            bend, bport_in, bport_out = self.bend
+
+            angle_in = bend.ports[bport_in].rotation
+            angle_out = bend.ports[bport_out].rotation
+            assert angle_in is not None
+            assert angle_out is not None
+
+            bend_dxy = rotation_matrix_2d(-angle_in) @ (
+                bend.ports[bport_out].offset
+                - bend.ports[bport_in].offset
                 )
 
-            straight_length -= bend_dxy[0]
-            bend_run += bend_dxy[1]
+            bend_angle = angle_out - angle_in
+
+            if bool(ccw):
+                bend_dxy[1] *= -1
+                bend_angle *= -1
         else:
             bend_dxy = numpy.zeros(2)
+            bend_angle = 0
 
         in_transition = self.transitions.get('unk' if in_ptype is None else in_ptype, None)
         if in_transition is not None:
@@ -114,9 +163,6 @@ class BasicTool(Tool, metaclass=ABCMeta):
                 ipat.ports[iport_ours].offset
                 - ipat.ports[iport_theirs].offset
                 )
-
-            straight_length -= itrans_dxy[0]
-            bend_run += itrans_dxy[1]
         else:
             itrans_dxy = numpy.zeros(2)
 
@@ -125,33 +171,176 @@ class BasicTool(Tool, metaclass=ABCMeta):
             opat, oport_theirs, oport_ours = out_transition
             orot = opat.ports[oport_ours].rotation
             assert orot is not None
-            otrans_dxy = rotation_matrix_2d(-orot) @ (
+
+            otrans_dxy = rotation_matrix_2d(-orot + bend_angle) @ (
                 opat.ports[oport_theirs].offset
                 - opat.ports[oport_ours].offset
                 )
-            if ccw:
-                otrans_dxy[0] *= -1
-
-            straight_length -= otrans_dxy[1]
-            bend_run += otrans_dxy[0]
         else:
             otrans_dxy = numpy.zeros(2)
 
+        if out_transition is not None:
+            out_ptype_actual = opat.ports[oport_theirs].ptype
+        elif ccw is not None:
+            out_ptype_actual = bend.ports[bport_out].ptype
+        else:
+            out_ptype_actual = self.default_out_ptype
+
+        straight_length = length - bend_dxy[0] - itrans_dxy[0] - otrans_dxy[0]
+        bend_run = bend_dxy[1] + itrans_dxy[1] + otrans_dxy
+
         if straight_length < 0:
-            raise BuildError(f'Asked to draw path with total length {length:g}, shorter than required bends and tapers:\n'
-                             f'bend: {bend_dxy[0]:g}  in_taper: {abs(itrans_dxy[0])}  out_taper: {otrans_dxy[1]}')
+            raise BuildError(
+                f'Asked to draw path with total length {length:,g}, shorter than required bends and transitions:\n'
+                f'bend: {bend_dxy[0]:,g}  in_trans: {itrans_dxy[0]:,g}  out_trans: {otrans_dxy[0]:,g}'
+                )
+
+        return float(straight_length), ccw, in_transition, out_transition
+
+    def render(
+            self,
+            batch: Sequence[RenderStep],
+            *,
+            port_names: Sequence[str] = ('A', 'B'),
+            append: bool = True,
+            **kwargs,
+            ) -> ILibrary:
 
-        gen_straight, sport_in, sport_out = self.straight
         tree = Library()
-        bb = Builder(library=tree, name='_path').add_port_pair(names=port_names)
-        if in_transition:
-            bb.plug(ipat, {port_names[1]: iport_theirs})
-        if not numpy.isclose(straight_length, 0):
-            straight = tree << {'_straight': gen_straight(straight_length)}
-            bb.plug(straight, {port_names[1]: sport_in})
-        if ccw is not None:
-            bb.plug(bend, {port_names[1]: bport_in}, mirrored=(False, bool(ccw)))
-        if out_transition:
-            bb.plug(opat, {port_names[1]: oport_ours})
+        bb = Builder(library=tree, name='_path').add_port_pair(names=(port_names[0], port_names[1]))
 
-        return bb.pattern
+        gen_straight, sport_in, _sport_out = self.straight
+        for step in batch:
+            straight_length, ccw, in_transition, out_transition = step.data
+            assert step.tool == self
+
+            if step.opcode == 'L':
+                if in_transition:
+                    ipat, iport_theirs, _iport_ours = in_transition
+                    bb.plug(ipat, {port_names[1]: iport_theirs})
+                if not numpy.isclose(straight_length, 0):
+                    straight_pat = gen_straight(straight_length)
+                    if append:
+                        bb.plug(straight_pat, {port_names[1]: sport_in}, append=True)
+                    else:
+                        straight = tree << {'_straight': straight_pat}
+                        bb.plug(straight, {port_names[1]: sport_in}, append=True)
+                if ccw is not None:
+                    bend, bport_in, bport_out = self.bend
+                    bb.plug(bend, {port_names[1]: bport_in}, mirrored=(False, bool(ccw)))
+                if out_transition:
+                    opat, oport_theirs, oport_ours = out_transition
+                    bb.plug(opat, {port_names[1]: oport_ours})
+        return tree
+
+
+
+class PathTool(Tool, metaclass=ABCMeta):
+    straight: tuple[Callable[[float], Pattern], str, str]
+    bend: abstract_tuple_t             # Assumed to be clockwise
+    transitions: dict[str, abstract_tuple_t]
+    ptype: str
+    width: float
+    layer: layer_t
+
+    def __init__(self, layer: layer_t, width: float, ptype: str = 'unk') -> None:
+        Tool.__init__(self)
+        self.layer = layer
+        self.width = width
+        self.ptype: str
+
+    def path(
+            self,
+            ccw: SupportsBool | None,
+            length: float,
+            *,
+            in_ptype: str | None = None,
+            out_ptype: str | None = None,
+            port_names: tuple[str, str] = ('A', 'B'),
+            **kwargs,
+            ) -> Pattern:
+        dxy = self.planL(
+            ccw,
+            length,
+            in_ptype=in_ptype,
+            out_ptype=out_ptype,
+            )
+
+        pat = Pattern()
+        pat.path(layer=self.layer, width=self.width, vertices=[(0, 0), (length, 0)])
+
+        if ccw is None:
+            out_rot = pi
+        elif bool(ccw):
+            out_rot = -pi / 2
+        else:
+            out_rot = pi / 2
+
+        pat.ports = {
+            port_names[0]: Port((0, 0), rotation=0, ptype=self.ptype),
+            port_names[1]: Port(dxy, rotation=out_rot, ptype=self.ptype),
+            }
+
+        return pat
+
+    def planL(
+            self,
+            ccw: SupportsBool | None,
+            length: float,
+            *,
+            in_ptype: str | None = None,
+            out_ptype: str | None = None,
+            **kwargs,
+            ) -> tuple[float, float]:
+        # TODO check all the math for L-shaped bends
+
+        if out_ptype and out_ptype != self.ptype:
+            raise BuildError(f'Requested {out_ptype=} does not match path ptype {self.ptype}')
+
+        if ccw is not None:
+            bend_dxy = numpy.array([1, -1]) * self.width / 2
+            bend_angle = pi / 2
+
+            if bool(ccw):
+                bend_dxy[1] *= -1
+                bend_angle *= -1
+        else:
+            bend_dxy = numpy.zeros(2)
+            bend_angle = 0
+
+        straight_length = length - bend_dxy[0]
+        bend_run = bend_dxy[1]
+
+        if straight_length < 0:
+            raise BuildError(
+                f'Asked to draw path with total length {length:,g}, shorter than required bend: {bend_dxy[0]:,g}'
+                )
+
+        return length, bend_run
+
+    def render(
+            self,
+            batch: Sequence[RenderStep],
+            *,
+            port_names: Sequence[str] = ('A', 'B'),
+            **kwargs,
+            ) -> ILibrary:
+
+        path_vertices = [batch[0].start_port.offset]
+        for step in batch:
+            assert step.tool == self
+
+            port_rot = step.start_port.rotation
+            assert port_rot is not None
+
+            if step.opcode == 'L':
+                length, bend_run = step.data
+                dxy = rotation_matrix_2d(port_rot + pi) @ (length, bend_run)
+                path_vertices.append(step.start_port.offset + dxy)
+            else:
+                raise BuildError(f'Unrecognized opcode "{step.opcode}"')
+
+        tree, pat = Library.mktree('_path')
+        pat.path(layer=self.layer, width=self.width, vertices=path_vertices)
+
+        return tree

masque/label.py

@@ -78,7 +78,7 @@ class Label(PositionableImpl, RepeatableImpl, AnnotatableImpl,
         self.translate(+pivot)
         return self
 
-    def get_bounds(self) -> NDArray[numpy.float64]:
+    def get_bounds_single(self) -> NDArray[numpy.float64]:
         """
         Return the bounds of the label.
 

masque/pattern.py

@@ -8,7 +8,7 @@ from itertools import chain
 from collections import defaultdict
 
 import numpy
-from numpy import inf, pi
+from numpy import inf, pi, nan
 from numpy.typing import NDArray, ArrayLike
 # .visualize imports matplotlib and matplotlib.collections
 
@@ -310,7 +310,7 @@ class Pattern(PortList, AnnotatableImpl, Mirrorable):
             self,
             library: Mapping[str, 'Pattern'] | None = None,
             recurse: bool = True,
-            cache: MutableMapping[str, NDArray[numpy.float64]] | None = None,
+            cache: MutableMapping[str, NDArray[numpy.float64] | None] | None = None,
             ) -> NDArray[numpy.float64] | None:
         """
         Return a `numpy.ndarray` containing `[[x_min, y_min], [x_max, y_max]]`, corresponding to the
@@ -326,19 +326,24 @@ class Pattern(PortList, AnnotatableImpl, Mirrorable):
         if self.is_empty():
             return None
 
-        cbounds = numpy.array([
-            (+inf, +inf),
-            (-inf, -inf),
-            ])
+        n_elems = sum(1 for _ in chain_elements(self.shapes, self.labels))
+        ebounds = numpy.full((n_elems, 2, 2), nan)
+        for ee, entry in enumerate(chain_elements(self.shapes, self.labels)):
+            maybe_ebounds = cast(Bounded, entry).get_bounds()
+            if maybe_ebounds is not None:
+                ebounds[ee] = maybe_ebounds
+        mask = ~numpy.isnan(ebounds[:, 0, 0])
 
-        for entry in chain_elements(self.shapes, self.labels):
-            bounds = cast(Bounded, entry).get_bounds()
-            if bounds is None:
-                continue
-            if entry.repetition is not None:
-                bounds += entry.repetition.get_bounds()
-            cbounds[0] = numpy.minimum(cbounds[0], bounds[0])
-            cbounds[1] = numpy.maximum(cbounds[1], bounds[1])
+        if mask.any():
+            cbounds = numpy.vstack((
+                numpy.min(ebounds[mask, 0, :]),
+                numpy.max(ebounds[mask, 1, :]),
+                ))
+        else:
+            cbounds = numpy.array((
+                (+inf, +inf),
+                (-inf, -inf),
+                ))
 
         if recurse and self.has_refs():
             if library is None:
@@ -381,9 +386,6 @@ class Pattern(PortList, AnnotatableImpl, Mirrorable):
                     if bounds is None:
                         continue
 
-                    if ref.repetition is not None:
-                        bounds += ref.repetition.get_bounds()
-
                     cbounds[0] = numpy.minimum(cbounds[0], bounds[0])
                     cbounds[1] = numpy.maximum(cbounds[1], bounds[1])
 

masque/ref.py

@@ -144,7 +144,7 @@ class Ref(
             self.repetition.mirror(axis)
         return self
 
-    def get_bounds(
+    def get_bounds_single(
             self,
             pattern: 'Pattern',
             *,
@@ -166,22 +166,6 @@ class Ref(
             return None
         return self.as_pattern(pattern=pattern).get_bounds(library)     # TODO can just take pattern's bounds and then transform those!
 
-    def get_bounds_nonempty(
-            self,
-            pattern: 'Pattern',
-            *,
-            library: Mapping[str, 'Pattern'] | None = None,
-            ) -> NDArray[numpy.float64]:
-        """
-        Returns `[[x_min, y_min], [x_max, y_max]]` which specify a minimal bounding box for the entity.
-        Asserts that the entity is non-empty (i.e., `get_bounds()` does not return None).
-
-        This is handy for destructuring like `xy_min, xy_max = entity.get_bounds_nonempty()`
-        """
-        bounds = self.get_bounds(pattern, library=library)
-        assert bounds is not None
-        return bounds
-
     def __repr__(self) -> str:
         rotation = f' r{numpy.rad2deg(self.rotation):g}' if self.rotation != 0 else ''
         scale = f' d{self.scale:g}' if self.scale != 1 else ''

masque/repetition.py

@@ -237,7 +237,11 @@ class Grid(Repetition):
             `[[x_min, y_min], [x_max, y_max]]` or `None`
         """
         a_extent = self.a_vector * (self.a_count - 1)
-        b_extent = self.b_vector * ((self.b_count - 1) if (self.b_vector is not None) else 0)       # type: NDArray[numpy.float64] | float
+        if self.b_count is None:
+            b_extent = numpy.zeros(2)
+        else:
+            assert self.b_vector is not None
+            b_extent = self.b_vector * (self.b_count - 1)
 
         corners = numpy.stack(((0, 0), a_extent, b_extent, a_extent + b_extent))
         xy_min = numpy.min(corners, axis=0)

masque/shapes/arc.py

@@ -241,7 +241,7 @@ class Arc(Shape):
         poly = Polygon(xys, offset=self.offset, rotation=self.rotation)
         return [poly]
 
-    def get_bounds(self) -> NDArray[numpy.float64]:
+    def get_bounds_single(self) -> NDArray[numpy.float64]:
         '''
         Equation for rotated ellipse is
             `x = x0 + a * cos(t) * cos(rot) - b * sin(t) * sin(phi)`

masque/shapes/circle.py

@@ -89,7 +89,7 @@ class Circle(Shape):
 
         return [Polygon(xys, offset=self.offset)]
 
-    def get_bounds(self) -> NDArray[numpy.float64]:
+    def get_bounds_single(self) -> NDArray[numpy.float64]:
         return numpy.vstack((self.offset - self.radius,
                              self.offset + self.radius))
 

masque/shapes/ellipse.py

@@ -152,7 +152,7 @@ class Ellipse(Shape):
         poly = Polygon(xys, offset=self.offset, rotation=self.rotation)
         return [poly]
 
-    def get_bounds(self) -> NDArray[numpy.float64]:
+    def get_bounds_single(self) -> NDArray[numpy.float64]:
         rot_radii = numpy.dot(rotation_matrix_2d(self.rotation), self.radii)
         return numpy.vstack((self.offset - rot_radii[0],
                              self.offset + rot_radii[1]))

masque/shapes/path.py

@@ -309,21 +309,23 @@ class Path(Shape):
 
         return polys
 
-    def get_bounds(self) -> NDArray[numpy.float64]:
+    def get_bounds_single(self) -> NDArray[numpy.float64]:
         if self.cap == PathCap.Circle:
             bounds = self.offset + numpy.vstack((numpy.min(self.vertices, axis=0) - self.width / 2,
                                                  numpy.max(self.vertices, axis=0) + self.width / 2))
-        elif self.cap in (PathCap.Flush,
-                          PathCap.Square,
-                          PathCap.SquareCustom):
+        elif self.cap in (
+                PathCap.Flush,
+                PathCap.Square,
+                PathCap.SquareCustom,
+                ):
             bounds = numpy.array([[+inf, +inf], [-inf, -inf]])
             polys = self.to_polygons()
             for poly in polys:
-                poly_bounds = poly.get_bounds_nonempty()
+                poly_bounds = poly.get_bounds_single_nonempty()
                 bounds[0, :] = numpy.minimum(bounds[0, :], poly_bounds[0, :])
                 bounds[1, :] = numpy.maximum(bounds[1, :], poly_bounds[1, :])
         else:
-            raise PatternError(f'get_bounds() not implemented for endcaps: {self.cap}')
+            raise PatternError(f'get_bounds_single() not implemented for endcaps: {self.cap}')
 
         return bounds
 

masque/shapes/polygon.py

@@ -327,7 +327,7 @@ class Polygon(Shape):
             ) -> list['Polygon']:
         return [copy.deepcopy(self)]
 
-    def get_bounds(self) -> NDArray[numpy.float64]:         # TODO note shape get_bounds doesn't include repetition
+    def get_bounds_single(self) -> NDArray[numpy.float64]:         # TODO note shape get_bounds doesn't include repetition
         return numpy.vstack((self.offset + numpy.min(self.vertices, axis=0),
                              self.offset + numpy.max(self.vertices, axis=0)))
 

masque/shapes/shape.py

@@ -5,7 +5,7 @@ import numpy
 from numpy.typing import NDArray, ArrayLike
 
 from ..traits import (
-    Rotatable, Mirrorable, Copyable, Scalable, Bounded,
+    Rotatable, Mirrorable, Copyable, Scalable,
     PositionableImpl, PivotableImpl, RepeatableImpl, AnnotatableImpl,
     )
 
@@ -25,7 +25,7 @@ normalized_shape_tuple = tuple[
 DEFAULT_POLY_NUM_VERTICES = 24
 
 
-class Shape(PositionableImpl, Rotatable, Mirrorable, Copyable, Scalable, Bounded,
+class Shape(PositionableImpl, Rotatable, Mirrorable, Copyable, Scalable,
             PivotableImpl, RepeatableImpl, AnnotatableImpl, metaclass=ABCMeta):
     """
     Class specifying functions common to all shapes.
@@ -118,7 +118,7 @@ class Shape(PositionableImpl, Rotatable, Mirrorable, Copyable, Scalable, Bounded
 
         polygon_contours = []
         for polygon in self.to_polygons():
-            bounds = polygon.get_bounds()
+            bounds = polygon.get_bounds_single()
             if bounds is None:
                 continue
 
@@ -250,7 +250,7 @@ class Shape(PositionableImpl, Rotatable, Mirrorable, Copyable, Scalable, Bounded
         polygon_contours = []
         for polygon in self.to_polygons():
             # Get rid of unused gridlines (anything not within 2 lines of the polygon bounds)
-            bounds = polygon.get_bounds()
+            bounds = polygon.get_bounds_single()
             if bounds is None:
                 continue
 

masque/shapes/text.py

@@ -2,7 +2,7 @@ from typing import Sequence, Any
 import copy
 
 import numpy
-from numpy import pi, inf
+from numpy import pi, nan
 from numpy.typing import NDArray, ArrayLike
 
 from . import Shape, Polygon, normalized_shape_tuple
@@ -151,15 +151,20 @@ class Text(RotatableImpl, Shape):
                     mirrored=(mirror_x, False),
                     ))
 
-    def get_bounds(self) -> NDArray[numpy.float64]:
+    def get_bounds_single(self) -> NDArray[numpy.float64]:
         # rotation makes this a huge pain when using slot.advance and glyph.bbox(), so
         #  just convert to polygons instead
-        bounds = numpy.array([[+inf, +inf], [-inf, -inf]])
         polys = self.to_polygons()
-        for poly in polys:
-            poly_bounds = poly.get_bounds()
-            bounds[0, :] = numpy.minimum(bounds[0, :], poly_bounds[0, :])
-            bounds[1, :] = numpy.maximum(bounds[1, :], poly_bounds[1, :])
+        pbounds = numpy.full((len(polys), 2, 2), nan)
+#        bounds = numpy.array([[+inf, +inf], [-inf, -inf]])
+        for pp, poly in enumerate(polys):
+            pbounds[pp] = poly.get_bounds_nonempty()
+#            bounds[0] = numpy.minimum(bounds[0], poly_bounds[0])
+#            bounds[1] = numpy.maximum(bounds[1], poly_bounds[1])
+        bounds = numpy.vstack((
+            numpy.min(pbounds[: 0, :], axis=0),
+            numpy.max(pbounds[: 1, :], axis=0),
+            ))
 
         return bounds
 

masque/traits/positionable.py

@@ -61,27 +61,6 @@ class Positionable(metaclass=ABCMeta):
         pass
 
 
-class Bounded(metaclass=ABCMeta):
-    @abstractmethod
-    def get_bounds(self) -> NDArray[numpy.float64] | None:
-        """
-        Returns `[[x_min, y_min], [x_max, y_max]]` which specify a minimal bounding box for the entity.
-        Returns `None` for an empty entity.
-        """
-        pass
-
-    def get_bounds_nonempty(self) -> NDArray[numpy.float64]:
-        """
-        Returns `[[x_min, y_min], [x_max, y_max]]` which specify a minimal bounding box for the entity.
-        Asserts that the entity is non-empty (i.e., `get_bounds()` does not return None).
-
-        This is handy for destructuring like `xy_min, xy_max = entity.get_bounds_nonempty()`
-        """
-        bounds = self.get_bounds()
-        assert bounds is not None
-        return bounds
-
-
 class PositionableImpl(Positionable, metaclass=ABCMeta):
     """
     Simple implementation of Positionable
@@ -121,3 +100,26 @@ class PositionableImpl(Positionable, metaclass=ABCMeta):
     def translate(self, offset: ArrayLike) -> Self:
         self._offset += offset   # type: ignore         # NDArray += ArrayLike should be fine??
         return self
+
+
+class Bounded(metaclass=ABCMeta):
+    @abstractmethod
+    def get_bounds(self, *args, **kwargs) -> NDArray[numpy.float64] | None:
+        """
+        Returns `[[x_min, y_min], [x_max, y_max]]` which specify a minimal bounding box for the entity.
+        Returns `None` for an empty entity.
+        """
+        pass
+
+    def get_bounds_nonempty(self, *args, **kwargs) -> NDArray[numpy.float64]:
+        """
+        Returns `[[x_min, y_min], [x_max, y_max]]` which specify a minimal bounding box for the entity.
+        Asserts that the entity is non-empty (i.e., `get_bounds()` does not return None).
+
+        This is handy for destructuring like `xy_min, xy_max = entity.get_bounds_nonempty()`
+        """
+        bounds = self.get_bounds(*args, **kwargs)
+        assert bounds is not None
+        return bounds
+
+

masque/traits/repeatable.py

@@ -1,7 +1,11 @@
 from typing import Self, TYPE_CHECKING
 from abc import ABCMeta, abstractmethod
 
+import numpy
+from numpy.typing import NDArray
+
 from ..error import MasqueError
+from .positionable import Bounded
 
 
 _empty_slots = ()     # Workaround to get mypy to ignore intentionally empty slots for superclass
@@ -50,15 +54,19 @@ class Repeatable(metaclass=ABCMeta):
         pass
 
 
-class RepeatableImpl(Repeatable, metaclass=ABCMeta):
+class RepeatableImpl(Repeatable, Bounded, metaclass=ABCMeta):
     """
-    Simple implementation of `Repeatable`
+    Simple implementation of `Repeatable` and extension of `Bounded` to include repetition bounds.
     """
     __slots__ = _empty_slots
 
     _repetition: 'Repetition | None'
     """ Repetition object, or None (single instance only) """
 
+    @abstractmethod
+    def get_bounds_single(self, *args, **kwargs) -> NDArray[numpy.float64] | None:
+        pass
+
     #
     # Non-abstract properties
     #
@@ -79,3 +87,24 @@ class RepeatableImpl(Repeatable, metaclass=ABCMeta):
     def set_repetition(self, repetition: 'Repetition | None') -> Self:
         self.repetition = repetition
         return self
+
+    def get_bounds_single_nonempty(self, *args, **kwargs) -> NDArray[numpy.float64]:
+        """
+        Returns `[[x_min, y_min], [x_max, y_max]]` which specify a minimal bounding box for the entity.
+        Asserts that the entity is non-empty (i.e., `get_bounds()` does not return None).
+
+        This is handy for destructuring like `xy_min, xy_max = entity.get_bounds_nonempty()`
+        """
+        bounds = self.get_bounds_single(*args, **kwargs)
+        assert bounds is not None
+        return bounds
+
+    def get_bounds(self, *args, **kwargs) -> NDArray[numpy.float64] | None:
+        bounds = self.get_bounds_single(*args, **kwargs)
+
+        if bounds is not None and self.repetition is not None:
+            rep_bounds = self.repetition.get_bounds()
+            if rep_bounds is None:
+                return None
+            bounds += rep_bounds
+        return bounds