Files
autocad-mcp-pro/backends/base.py
T
Umutcan Edizsalan 0c7f64ceb6 fix(correctness-bundle): I16 correctness fixes + dead code removal + ruff clean
N1: COM hatch non-associative (AddHatch associativity=False)
N2: ezdxf refuses DWG saves with clear error; server.py derives fmt from extension
R19: dimension_aligned dist→distance; dimension_angular correct add_angular_dim_2l args (base/line1/line2/location)
R9: polar array 360° no-duplicate (divisor=n when fill_angle%360<ε)
R13: entity_offset side_x/side_y honored in ezdxf via cross-product (LINE) and distance-to-center (CIRCLE)
R18: drawing_new bootstrap failure surfaces status="degraded" instead of swallowing silently
Dead code: engineering/section.py, gear.generate_tooth_profile, CommandResult, _ACI_NAMES, set_layer_active, ensure_linetypes, ComBackend._batch_mode instance attr, engineering/__init__ build-seam comment
Ruff: 38 auto-fixed + 5 manual → codebase is now ruff-clean; CI lint is now blocking

184 tests pass.
2026-06-18 11:34:30 +03:00

920 lines
33 KiB
Python

"""Abstract base class + shared data models for AutoCAD backends."""
from __future__ import annotations
import math
from abc import ABC, abstractmethod
from dataclasses import dataclass, field
from typing import TYPE_CHECKING, Any
if TYPE_CHECKING:
from engineering.plan_spec import (
CritiqueFocus,
DimStyle,
Issue,
LayerSetId,
PlanSpec,
SheetSize,
SnapType,
)
# ---------------------------------------------------------------------------
# Data models
# ---------------------------------------------------------------------------
@dataclass
class EntityInfo:
handle: str
type: str # e.g. "LINE", "CIRCLE", "ARC"
layer: str
color: int # ACI color (256=ByLayer)
linetype: str
visible: bool
properties: dict = field(default_factory=dict)
@dataclass
class LayerInfo:
name: str
color: int
linetype: str
lineweight: float
is_on: bool
is_frozen: bool
is_locked: bool
is_current: bool
@dataclass
class BlockInfo:
name: str
origin: tuple[float, float]
attribute_count: int
entity_count: int
is_xref: bool
description: str = ""
@dataclass
class DrawingInfo:
name: str
full_path: str
saved: bool
entity_count: int
layer_count: int
block_count: int
extents_min: tuple[float, float]
extents_max: tuple[float, float]
units: str
version: str = ""
backend: str = ""
# ---------------------------------------------------------------------------
# Shared helpers
# ---------------------------------------------------------------------------
def normalize_lineweight(lw: float | int | None) -> int | None:
"""Coerce a lineweight to ezdxf/COM hundredths-of-a-mm integers.
AutoCAD and ezdxf store lineweights as integer hundredths (25 == 0.25 mm),
plus the -1/-2/-3 sentinels (ByLayer/ByBlock/Default). Callers, however,
mix conventions: the MCP tool boundary passes hundredths (25) while the
engineering layer sets pass millimetres (0.25). The old ``int(0.25)``
silently truncated millimetre values to 0 and wiped the lineweight (and with
it the whole ISO 128 discipline). Disambiguation is unambiguous because no
ISO 128 millimetre value exceeds 2.0 and no valid hundredth is below 5, so
the ``(0, 2.05]`` band is always millimetres.
"""
if lw is None:
return None
try:
v = float(lw)
except (TypeError, ValueError):
return lw # leave exotic / already-int values untouched
if v < 0:
return int(round(v)) # -1/-2/-3 sentinels
if v == 0:
return 0
if v <= 2.05:
return int(round(v * 100.0)) # millimetres -> hundredths
return int(round(v)) # already hundredths
# ---------------------------------------------------------------------------
# Abstract backend
# ---------------------------------------------------------------------------
class AutoCADBackend(ABC):
"""All backends implement this interface."""
# ── identity ────────────────────────────────────────────────────────────
@property
@abstractmethod
def name(self) -> str: ...
@property
@abstractmethod
def is_connected(self) -> bool: ...
@abstractmethod
async def connect(self) -> None: ...
@abstractmethod
async def disconnect(self) -> None: ...
# ── drawing management ───────────────────────────────────────────────────
@abstractmethod
async def drawing_info(self) -> DrawingInfo: ...
@abstractmethod
async def drawing_new(self, template: str | None = None) -> dict: ...
@abstractmethod
async def drawing_open(self, path: str) -> dict: ...
@abstractmethod
async def drawing_save(self, path: str | None = None) -> dict: ...
@abstractmethod
async def drawing_save_as(self, path: str, fmt: str = "dwg") -> dict: ...
@abstractmethod
async def drawing_export_dxf(self, path: str) -> dict: ...
@abstractmethod
async def drawing_export_pdf(self, path: str) -> dict: ...
@abstractmethod
async def drawing_purge(self) -> dict: ...
@abstractmethod
async def drawing_audit(self) -> dict: ...
@abstractmethod
async def drawing_close(self, save: bool = True) -> dict: ...
@abstractmethod
async def drawing_undo(self) -> dict: ...
@abstractmethod
async def drawing_redo(self) -> dict: ...
# ── entity creation ──────────────────────────────────────────────────────
@abstractmethod
async def entity_create_line(
self, x1: float, y1: float, x2: float, y2: float,
z1: float = 0.0, z2: float = 0.0,
layer: str | None = None, color: int | None = None,
linetype: str | None = None,
) -> EntityInfo: ...
@abstractmethod
async def entity_create_circle(
self, cx: float, cy: float, radius: float,
layer: str | None = None, color: int | None = None,
) -> EntityInfo: ...
@abstractmethod
async def entity_create_arc(
self, cx: float, cy: float, radius: float,
start_angle: float, end_angle: float,
layer: str | None = None, color: int | None = None,
) -> EntityInfo: ...
@abstractmethod
async def entity_create_polyline(
self, points: list[list[float]], closed: bool = False,
layer: str | None = None, color: int | None = None,
) -> EntityInfo: ...
@abstractmethod
async def entity_create_text(
self, text: str, x: float, y: float,
height: float = 2.5, rotation: float = 0.0,
layer: str | None = None, color: int | None = None,
) -> EntityInfo: ...
@abstractmethod
async def entity_create_mtext(
self, text: str, x: float, y: float,
width: float = 100.0, height: float = 2.5,
layer: str | None = None, color: int | None = None,
) -> EntityInfo: ...
@abstractmethod
async def entity_create_hatch(
self, pattern: str, boundary_points: list[list[float]],
scale: float = 1.0, angle: float = 0.0,
layer: str | None = None, color: int | None = None,
) -> EntityInfo: ...
@abstractmethod
async def entity_create_spline(
self, fit_points: list[list[float]],
layer: str | None = None, color: int | None = None,
) -> EntityInfo: ...
@abstractmethod
async def entity_create_ellipse(
self, cx: float, cy: float,
major_x: float, major_y: float, ratio: float = 0.5,
layer: str | None = None, color: int | None = None,
) -> EntityInfo: ...
@abstractmethod
async def entity_create_point(
self, x: float, y: float,
layer: str | None = None, color: int | None = None,
) -> EntityInfo: ...
@abstractmethod
async def entity_create_block_ref(
self, name: str, x: float, y: float,
scale_x: float = 1.0, scale_y: float = 1.0, rotation: float = 0.0,
layer: str | None = None,
) -> EntityInfo: ...
# ── dimensions ───────────────────────────────────────────────────────────
@abstractmethod
async def dimension_linear(
self, x1: float, y1: float, x2: float, y2: float,
dim_x: float, dim_y: float, rotation: float = 0.0,
layer: str | None = None,
) -> EntityInfo: ...
@abstractmethod
async def dimension_aligned(
self, x1: float, y1: float, x2: float, y2: float,
dim_x: float, dim_y: float,
layer: str | None = None,
) -> EntityInfo: ...
@abstractmethod
async def dimension_angular(
self, vx: float, vy: float,
x1: float, y1: float, x2: float, y2: float,
tx: float, ty: float,
layer: str | None = None,
) -> EntityInfo: ...
@abstractmethod
async def dimension_radius(
self, cx: float, cy: float, chord_x: float, chord_y: float,
leader_length: float = 10.0, layer: str | None = None,
) -> EntityInfo: ...
@abstractmethod
async def dimension_diameter(
self, x1: float, y1: float, x2: float, y2: float,
leader_length: float = 10.0, layer: str | None = None,
) -> EntityInfo: ...
# ── entity modification ──────────────────────────────────────────────────
@abstractmethod
async def entity_move(self, handle: str, dx: float, dy: float, dz: float = 0.0) -> dict: ...
@abstractmethod
async def entity_copy(self, handle: str, dx: float, dy: float, dz: float = 0.0) -> EntityInfo: ...
@abstractmethod
async def entity_rotate(
self, handle: str, base_x: float, base_y: float, angle_deg: float,
) -> dict: ...
@abstractmethod
async def entity_scale(
self, handle: str, base_x: float, base_y: float, factor: float,
) -> dict: ...
@abstractmethod
async def entity_mirror(
self, handle: str,
x1: float, y1: float, x2: float, y2: float,
delete_original: bool = False,
) -> EntityInfo: ...
@abstractmethod
async def entity_offset(
self, handle: str, distance: float,
side_x: float | None = None, side_y: float | None = None,
) -> EntityInfo: ...
@abstractmethod
async def entity_delete(self, handle: str) -> dict: ...
@abstractmethod
async def entity_array_rectangular(
self, handle: str,
rows: int, cols: int, row_spacing: float, col_spacing: float,
) -> list[EntityInfo]: ...
@abstractmethod
async def entity_array_polar(
self, handle: str,
count: int, fill_angle: float,
center_x: float, center_y: float,
) -> list[EntityInfo]: ...
# ── corner operations (trim/extend/fillet/chamfer) ───────────────────────
@abstractmethod
async def entity_trim(
self, target_handle: str, cutter_handle: str,
keep_x: float, keep_y: float,
) -> EntityInfo:
"""Trim `target` against `cutter`; keep the segment containing
(keep_x, keep_y). Raises ToolError if no intersection."""
...
@abstractmethod
async def entity_extend(
self, target_handle: str, boundary_handle: str,
end_x: float | None = None, end_y: float | None = None,
) -> EntityInfo:
"""Extend `target` to meet `boundary`. If `end_x/y` is None, the
target endpoint nearest the boundary is auto-selected."""
...
@abstractmethod
async def entity_fillet(
self, handle1: str, handle2: str, radius: float,
trim: bool = True,
) -> EntityInfo:
"""Fillet two entities with the given radius. Returns the new ARC.
When `trim` is True (default), the source entities are shortened
to the tangent points (AutoCAD default behaviour)."""
...
@abstractmethod
async def entity_chamfer(
self, handle1: str, handle2: str,
dist1: float, dist2: float | None = None,
trim: bool = True,
) -> EntityInfo:
"""Chamfer two entities. When `dist2` is None it defaults to `dist1`
(symmetric chamfer). Returns the new chamfer LINE."""
...
# ── entity query/properties ───────────────────────────────────────────────
@abstractmethod
async def entity_get(self, handle: str) -> EntityInfo: ...
@abstractmethod
async def entity_set_properties(
self, handle: str,
layer: str | None = None,
color: int | None = None,
linetype: str | None = None,
lineweight: float | None = None,
visible: bool | None = None,
) -> dict: ...
@abstractmethod
async def entity_list(
self,
type_filter: str | None = None,
layer_filter: str | None = None,
limit: int = 200,
offset: int = 0,
) -> list[EntityInfo]: ...
# ── layer management ─────────────────────────────────────────────────────
@abstractmethod
async def layer_list(self) -> list[LayerInfo]: ...
@abstractmethod
async def layer_create(
self, name: str,
color: int = 7,
linetype: str = "Continuous",
lineweight: float = -3,
) -> LayerInfo: ...
@abstractmethod
async def layer_delete(self, name: str) -> dict: ...
@abstractmethod
async def layer_set_current(self, name: str) -> dict: ...
@abstractmethod
async def layer_modify(
self, name: str,
color: int | None = None,
linetype: str | None = None,
lineweight: float | None = None,
) -> LayerInfo: ...
@abstractmethod
async def layer_freeze(self, name: str) -> dict: ...
@abstractmethod
async def layer_thaw(self, name: str) -> dict: ...
@abstractmethod
async def layer_lock(self, name: str) -> dict: ...
@abstractmethod
async def layer_unlock(self, name: str) -> dict: ...
@abstractmethod
async def layer_hide(self, name: str) -> dict: ...
@abstractmethod
async def layer_show(self, name: str) -> dict: ...
# ── linetype management ──────────────────────────────────────────────────
@abstractmethod
async def linetype_list(self) -> list[str]: ...
@abstractmethod
async def linetype_load(
self, name: str, file: str | None = None,
) -> dict: ...
# ── block operations ─────────────────────────────────────────────────────
@abstractmethod
async def block_list(self) -> list[BlockInfo]: ...
@abstractmethod
async def block_insert(
self, name: str, x: float, y: float,
scale_x: float = 1.0, scale_y: float = 1.0, rotation: float = 0.0,
attributes: dict | None = None,
layer: str | None = None,
) -> EntityInfo: ...
@abstractmethod
async def block_explode(self, handle: str) -> dict: ...
@abstractmethod
async def block_get_attributes(self, handle: str) -> dict: ...
@abstractmethod
async def block_set_attributes(self, handle: str, attributes: dict) -> dict: ...
@abstractmethod
async def block_create_from_entities(
self, name: str, handles: list[str],
base_x: float = 0.0, base_y: float = 0.0,
) -> dict: ...
# ── analysis / query ─────────────────────────────────────────────────────
@abstractmethod
async def analysis_stats(self) -> dict: ...
@abstractmethod
async def analysis_entities_in_region(
self, x1: float, y1: float, x2: float, y2: float,
) -> list[EntityInfo]: ...
@abstractmethod
async def analysis_measure_distance(
self, x1: float, y1: float, x2: float, y2: float,
) -> float: ...
@abstractmethod
async def analysis_measure_area(self, points: list[list[float]]) -> float: ...
@abstractmethod
async def analysis_bounding_box(self) -> dict: ...
@abstractmethod
async def analysis_select_by_layer(self, layer_name: str) -> list[EntityInfo]: ...
@abstractmethod
async def analysis_select_by_type(self, entity_type: str) -> list[EntityInfo]: ...
# ── view / screenshot ────────────────────────────────────────────────────
@abstractmethod
async def view_zoom_extents(self) -> dict: ...
@abstractmethod
async def view_zoom_window(
self, x1: float, y1: float, x2: float, y2: float,
) -> dict: ...
@abstractmethod
async def view_screenshot(self) -> bytes | None: ...
# ── transactions ─────────────────────────────────────────────────────────
@abstractmethod
async def transaction_begin(self) -> dict: ...
@abstractmethod
async def transaction_commit(self) -> dict: ...
@abstractmethod
async def transaction_rollback(self) -> dict: ...
# ── system ───────────────────────────────────────────────────────────────
@abstractmethod
async def system_status(self) -> dict: ...
@abstractmethod
async def system_get_variable(self, name: str) -> Any: ...
@abstractmethod
async def system_set_variable(self, name: str, value: Any) -> dict: ...
@abstractmethod
async def system_run_command(self, command: str) -> dict: ...
@abstractmethod
async def system_run_lisp(self, expression: str) -> dict: ...
# ── premium meta-tools (planning + critique + snap + construction) ──────
# These are CONCRETE and backend-agnostic: they orchestrate the abstract
# primitives above plus the shared EntityInfo.properties contract (start/
# end/center/radius/start_angle/end_angle — populated identically by both
# backends), so the ezdxf and COM backends inherit identical premium
# behaviour. The only backend-specific primitive is `_create_xline` — XLINE
# has no cross-backend equivalent among the standard entity_create_* tools.
_plan_spec: PlanSpec | None = None
async def drawing_plan(
self, intent: str,
sheet_size: SheetSize = "A3",
scale: float = 1.0,
layer_set_id: LayerSetId = "mech",
view_count: int = 1,
dim_style: DimStyle = "chain",
notes: list[str] | None = None,
) -> PlanSpec:
"""Commit a drawing intent before any geometry is created.
Returns a PlanSpec held on the backend for `drawing_critique`."""
from engineering.plan_spec import PlanSpec
plan = PlanSpec(
intent=str(intent),
sheet_size=sheet_size,
scale=float(scale),
layer_set_id=layer_set_id,
view_count=int(view_count),
dim_style=dim_style,
notes=list(notes) if notes else [],
)
self._plan_spec = plan
return plan
async def drawing_critique(
self, focus: list[CritiqueFocus] | None = None,
) -> list[Issue]:
"""Run premium-quality checks; return zero issues before
`drawing_finalize`. `focus=None` runs all checks."""
from engineering.critique import run_critique
return await run_critique(self, focus)
async def point_from_snap(
self, handle: str, snap: SnapType,
ref_x: float | None = None, ref_y: float | None = None,
) -> tuple[float, float]:
"""Return a deterministic snap point on `handle`.
snap ∈ {end, mid, center, quad, perp, near}. For `near/perp`,
`ref_x/y` is the reference point. Sources geometry from the shared
EntityInfo.properties contract — works on every backend."""
ent = await self.entity_get(handle)
et = ent.type
p = ent.properties
ref = (
(float(ref_x), float(ref_y))
if ref_x is not None and ref_y is not None else None
)
def _line_pts():
s = p.get("start")
e = p.get("end")
if s is None or e is None:
raise RuntimeError(
f"point_from_snap: entity {handle} ({et}) has no start/end."
)
return (float(s[0]), float(s[1])), (float(e[0]), float(e[1]))
def _circle_geom():
c = p.get("center")
r = p.get("radius")
if c is None or r is None:
raise RuntimeError(
f"point_from_snap: entity {handle} ({et}) has no center/radius."
)
return float(c[0]), float(c[1]), float(r)
if snap == "end":
if et == "LINE":
s, e = _line_pts()
if ref is None:
return s
ds = (s[0] - ref[0]) ** 2 + (s[1] - ref[1]) ** 2
de = (e[0] - ref[0]) ** 2 + (e[1] - ref[1]) ** 2
return s if ds <= de else e
if et == "ARC":
cx, cy, r = _circle_geom()
sa = math.radians(float(p["start_angle"]))
ea = math.radians(float(p["end_angle"]))
sp = (cx + r * math.cos(sa), cy + r * math.sin(sa))
ep = (cx + r * math.cos(ea), cy + r * math.sin(ea))
if ref is None:
return sp
ds = (sp[0] - ref[0]) ** 2 + (sp[1] - ref[1]) ** 2
de = (ep[0] - ref[0]) ** 2 + (ep[1] - ref[1]) ** 2
return sp if ds <= de else ep
raise RuntimeError(f"point_from_snap: 'end' snap not supported on {et}")
if snap == "mid":
if et == "LINE":
s, e = _line_pts()
return ((s[0] + e[0]) / 2.0, (s[1] + e[1]) / 2.0)
if et == "ARC":
cx, cy, r = _circle_geom()
sa = math.radians(float(p["start_angle"]))
ea = math.radians(float(p["end_angle"]))
if ea < sa:
ea += 2 * math.pi
ma = (sa + ea) / 2.0
return (cx + r * math.cos(ma), cy + r * math.sin(ma))
raise RuntimeError(f"point_from_snap: 'mid' snap not supported on {et}")
if snap == "center":
if et in ("CIRCLE", "ARC", "ELLIPSE"):
c = p.get("center")
if c is None:
raise RuntimeError(
f"point_from_snap: entity {handle} ({et}) has no center."
)
return (float(c[0]), float(c[1]))
raise RuntimeError(f"point_from_snap: 'center' snap not supported on {et}")
if snap == "quad":
if et in ("CIRCLE", "ARC"):
cx, cy, r = _circle_geom()
pts = [(cx + r, cy), (cx, cy + r), (cx - r, cy), (cx, cy - r)]
if ref is None:
return pts[0]
return min(pts, key=lambda q: (q[0] - ref[0]) ** 2 + (q[1] - ref[1]) ** 2)
raise RuntimeError(f"point_from_snap: 'quad' snap not supported on {et}")
if snap == "perp":
if ref is None:
raise RuntimeError("point_from_snap: 'perp' requires ref_x/ref_y.")
if et == "LINE":
s, e = _line_pts()
dx = e[0] - s[0]
dy = e[1] - s[1]
L2 = dx * dx + dy * dy
if L2 < 1e-18:
raise RuntimeError("point_from_snap: line has zero length.")
t = ((ref[0] - s[0]) * dx + (ref[1] - s[1]) * dy) / L2
return (s[0] + t * dx, s[1] + t * dy)
raise RuntimeError(f"point_from_snap: 'perp' snap not supported on {et}")
if snap == "near":
if ref is None:
raise RuntimeError("point_from_snap: 'near' requires ref_x/ref_y.")
if et == "LINE":
s, e = _line_pts()
dx = e[0] - s[0]
dy = e[1] - s[1]
L2 = dx * dx + dy * dy
if L2 < 1e-18:
return s
t = ((ref[0] - s[0]) * dx + (ref[1] - s[1]) * dy) / L2
t = max(0.0, min(1.0, t))
return (s[0] + t * dx, s[1] + t * dy)
if et in ("CIRCLE", "ARC"):
cx, cy, r = _circle_geom()
vx, vy = ref[0] - cx, ref[1] - cy
L = math.hypot(vx, vy)
if L < 1e-18:
return (cx + r, cy)
return (cx + r * vx / L, cy + r * vy / L)
raise RuntimeError(f"point_from_snap: 'near' snap not supported on {et}")
if snap == "int":
raise RuntimeError(
"point_from_snap: 'int' (intersection) requires a 2nd entity; "
"compute via two endpoints. V2 will accept a 2nd handle."
)
raise RuntimeError(
f"point_from_snap: unknown snap type '{snap}'. "
"Use one of: end, mid, center, quad, perp, near."
)
@abstractmethod
async def _create_xline(
self, x: float, y: float, dx: float, dy: float, layer: str,
) -> EntityInfo:
"""Create an infinite construction line (XLINE) through (x, y) with
unit direction (dx, dy) on `layer`. Backend-specific: XLINE has no
cross-backend entity_create_* equivalent."""
...
async def _ensure_layer(self, name: str, color: int = 7) -> None:
"""Idempotently make sure `name` exists (no-op if already present)."""
try:
existing = {lyr.name for lyr in await self.layer_list()}
except Exception:
existing = set()
if name not in existing:
try:
await self.layer_create(name, color=color)
except Exception:
pass # already created / racy create — harmless
async def construction_xline(
self, x: float, y: float, angle_deg: float,
layer: str = "CONSTRUCTION",
) -> EntityInfo:
"""Create an infinite construction line (XLINE) on a CONSTRUCTION
layer (auto-created with color 250 = lightest if missing)."""
await self._ensure_layer(layer, color=250)
ang = math.radians(float(angle_deg))
return await self._create_xline(
float(x), float(y), math.cos(ang), math.sin(ang), layer,
)
async def construction_clear(
self, layer: str = "CONSTRUCTION",
) -> dict:
"""Delete every entity on the CONSTRUCTION layer.
Must be called before `drawing_finalize`."""
try:
ents = await self.entity_list(layer_filter=layer, limit=5000)
except Exception:
ents = []
deleted = 0
for ent in ents:
try:
await self.entity_delete(ent.handle)
deleted += 1
except Exception:
continue
return {"ok": True, "layer": layer, "deleted": deleted}
async def drawing_apply_iso_layers(
self, standard: LayerSetId = "mech",
) -> dict:
"""Bootstrap a full ISO-conformant layer set with correct colors
and lineweights. Idempotent."""
from engineering.layers import apply_layer_set
result = await apply_layer_set(self, standard)
return {"ok": True, "standard": standard, "layers": result}
async def dimension_auto(
self, handles: list[str], style: DimStyle = "chain",
offset: float = 10.0,
) -> list[EntityInfo]:
"""Generate ISO 129 dimensions across `handles` in the chosen style
(chain | baseline | ordinate). `offset` is the dimension-line
distance from the reference geometry (mm)."""
if not handles:
return []
if style not in ("chain", "baseline", "ordinate"):
raise RuntimeError(
f"dimension_auto: unknown style '{style}'. "
"Use 'chain', 'baseline', or 'ordinate'."
)
segs: list[tuple[float, float, float, float]] = []
for h in handles:
ent = await self.entity_get(h)
if ent.type != "LINE":
raise RuntimeError(
f"dimension_auto V1: only LINE entities supported "
f"(handle {h} is {ent.type})."
)
s = ent.properties.get("start")
e = ent.properties.get("end")
if s is None or e is None:
raise RuntimeError(f"dimension_auto: line {h} missing start/end.")
segs.append((float(s[0]), float(s[1]), float(e[0]), float(e[1])))
off = float(offset)
results: list[EntityInfo] = []
if style == "chain":
# Each line gets its own linear (rotated) dimension, offset clear of
# the geometry along its own perpendicular.
for sx, sy, ex, ey in segs:
mx = (sx + ex) / 2.0
my = (sy + ey) / 2.0
dx, dy = ex - sx, ey - sy
L = math.hypot(dx, dy) or 1.0
nx, ny = -dy / L, dx / L
dim = await self.dimension_linear(
sx, sy, ex, ey, mx + nx * off, my + ny * off,
rotation=math.degrees(math.atan2(dy, dx)), layer="DIM",
)
results.append(dim)
elif style == "baseline":
sx0, sy0, ex0, ey0 = segs[0]
dx, dy = ex0 - sx0, ey0 - sy0
L0 = math.hypot(dx, dy) or 1.0
ux, uy = dx / L0, dy / L0
for i, (_sx, _sy, ex, ey) in enumerate(segs):
dim = await self.dimension_linear(
sx0, sy0, ex, ey,
sx0 - uy * (off + i * off), sy0 + ux * (off + i * off),
layer="DIM",
)
results.append(dim)
else: # ordinate — X then Y distance of each segment's end from start
for sx, sy, ex, ey in segs:
if abs(ex - sx) > 1e-9:
dim = await self.dimension_linear(
sx, sy, ex, sy,
sx + (ex - sx) / 2.0, max(sy, ey) + off, layer="DIM",
)
results.append(dim)
if abs(ey - sy) > 1e-9:
dim = await self.dimension_linear(
ex, sy, ex, ey,
max(sx, ex) + off, (sy + ey) / 2.0,
rotation=90.0, layer="DIM",
)
results.append(dim)
return results
async def entity_select_smart(
self, predicate: dict,
) -> list[EntityInfo]:
"""Semantic entity selection. Predicate keys (all optional, AND-ed):
- type: "LINE" | "CIRCLE" | ...
- layer: layer name
- near: [x, y, radius] — entity reference point within circle
- length_range: [min, max] — applies to LINE/ARC
- color: ACI int
"""
if not isinstance(predicate, dict):
raise RuntimeError("entity_select_smart: predicate must be a dict.")
ptype = predicate.get("type")
player = predicate.get("layer")
pnear = predicate.get("near") # [x, y, radius]
plen = predicate.get("length_range") # [min, max]
pcolor = predicate.get("color")
ents = await self.entity_list(
type_filter=ptype.upper() if isinstance(ptype, str) else None,
layer_filter=player if isinstance(player, str) else None,
limit=5000,
)
def _ok(e: EntityInfo) -> bool:
if pcolor is not None and int(e.color) != int(pcolor):
return False
if pnear is not None:
try:
nx, ny, nr = float(pnear[0]), float(pnear[1]), float(pnear[2])
except Exception:
return False
pt = (e.properties.get("start")
or e.properties.get("center")
or e.properties.get("insertion")
or e.properties.get("insertion_point"))
if pt is None:
return False
if (float(pt[0]) - nx) ** 2 + (float(pt[1]) - ny) ** 2 > nr ** 2:
return False
if plen is not None and e.type in ("LINE", "ARC"):
try:
lmin, lmax = float(plen[0]), float(plen[1])
except Exception:
return False
length = e.properties.get("length")
if length is None or not (lmin <= float(length) <= lmax):
return False
return True
return [e for e in ents if _ok(e)]
# ---------------------------------------------------------------------------
# Helpers
# ---------------------------------------------------------------------------
def shoelace_area(points: list[list[float]]) -> float:
"""Calculate polygon area using the shoelace formula."""
n = len(points)
if n < 3:
return 0.0
area = 0.0
for i in range(n):
j = (i + 1) % n
area += points[i][0] * points[j][1]
area -= points[j][0] * points[i][1]
return abs(area) / 2.0
def deg2rad(degrees: float) -> float:
return degrees * math.pi / 180.0
def rad2deg(radians: float) -> float:
return radians * 180.0 / math.pi