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-rw-r--r--gerbonara/cad/kicad/pcb.py133
1 files changed, 42 insertions, 91 deletions
diff --git a/gerbonara/cad/kicad/pcb.py b/gerbonara/cad/kicad/pcb.py
index 0c018cf..9249a9d 100644
--- a/gerbonara/cad/kicad/pcb.py
+++ b/gerbonara/cad/kicad/pcb.py
@@ -2,12 +2,10 @@
Library for handling KiCad's PCB files (`*.kicad_mod`).
"""
-import sys
import math
from pathlib import Path
from dataclasses import field, KW_ONLY, fields
from itertools import chain
-from collections import defaultdict
import re
import fnmatch
import functools
@@ -352,6 +350,7 @@ class Board:
b.__after_parse__(None)
return b
+
def init_default_layers(self, inner_layers=0):
inner = [(i, f'In{i}.Cu', 'signal', None) for i in range(1, inner_layers+1)]
self.layers = [LayerSettings(idx, name, Atom(ltype)) for idx, name, ltype, cname in [
@@ -386,12 +385,13 @@ class Board:
(57, 'User.8', 'user', None),
(58, 'User.9', 'user', None)]]
+
def rebuild_trace_index(self):
idx = self._trace_index = rtree.index.Index()
id_map = self._trace_index_map = {}
for obj in chain(self.track_segments, self.track_arcs):
- for field in ('start', 'end'):
- obj_id = id(obj)
+ for i, field in enumerate(('start', 'end')):
+ obj_id = id(obj) + i
coord = getattr(obj, field)
id_map[obj_id] = obj, field, obj.width, obj.layer_mask
idx.insert(obj_id, (coord.x, coord.y, coord.x, coord.y))
@@ -407,6 +407,7 @@ class Board:
id_map[obj_id] = via, 'at', via.size, via.layer_mask
idx.insert(obj_id, (via.at.x, via.at.y, via.at.x, via.at.y))
+
@staticmethod
def _require_trace_index(fun):
@functools.wraps(fun)
@@ -417,6 +418,7 @@ class Board:
return fun(self, *args, **kwargs)
return wrapper
+
@_require_trace_index
def query_trace_index_nearest(self, point, layers='*.Cu', n=1):
layers = layer_mask(layers)
@@ -427,10 +429,10 @@ class Board:
if layers & mask:
yield entry
+
@_require_trace_index
def query_trace_index_tolerance(self, point, layers='*.Cu', tol=10e-6):
layers = layer_mask(layers)
- print(f'query {layers:08x}', file=sys.stderr)
x, y = point
for obj_id in self._trace_index.intersection((x-tol, y-tol, x+tol, y+tol)):
@@ -439,6 +441,7 @@ class Board:
if layers & mask and math.dist((attr.x, attr.y), (x, y)) <= tol:
yield entry
+
def find_connected_traces(self, obj, layers='*.Cu', tol=10e-6):
search_frontier = []
visited = set()
@@ -463,100 +466,30 @@ class Board:
raise TypeError(f'Finding connected traces for {type(obj)} objects is not (yet) supported.')
enqueue(obj)
+ yield obj
filter_layers = layer_mask(layers)
while search_frontier:
coord, size, layers = search_frontier.pop()
x, y = coord.x, coord.y
- for cand in self.find_conductors_at(x, y, layers & filter_layers, size):
- if id(cand) not in visited:
- enqueue(cand)
- yield cand
-
- def track_skeleton(self, start, tol=10e-6):
- search_frontier = []
- def enqueue(obj, arr):
- if isinstance(obj, (TrackSegment, TrackArc)):
- search_frontier.append((id(obj), arr, False, obj.start, obj.width, obj.layer_mask))
- search_frontier.append((id(obj), arr, False, obj.end, obj.width, obj.layer_mask))
-
- elif isinstance(obj, Via):
- search_frontier.append((id(obj), arr, True, obj.at, obj.size, obj.layer_mask))
-
- elif isinstance(obj, Pad):
- search_frontier.append((id(obj), arr, True, obj.at, max(obj.size.x, obj.size.y), obj.layer_mask))
-
- else:
- raise TypeError(f'Track skeleton starting at {type(obj)} objects is not (yet) supported.')
+ # First, find all bounding box intersections
+ found = []
+ for cand, attr, cand_size, cand_mask in self.query_trace_index_tolerance((x, y), layers&filter_layers, size):
+ cand_coord = getattr(cand, attr)
+ dist = math.dist((x, y), (cand_coord.x, cand_coord.y))
+ if dist <= size/2 + cand_size/2 and layers&cand_mask:
+ found.append((dist, cand))
- first_edge = []
- enqueue(start, first_edge)
- nodes = {id(start): 1}
- edges = {1: [first_edge]}
-
- i = 0
- while search_frontier:
- obj_id, edge, force_node, coord, size, layers = search_frontier.pop()
- print(f'current entry {obj_id} {force_node} {coord} {size} {layers:08x}', file=sys.stderr)
- x, y = coord.x, coord.y
-
- candidates = [cand for cand in self.find_conductors_at(x, y, layers, size) if id(cand) != obj_id]
-
- if force_node or len(candidates) > 1:
- for cand in candidates:
- if node_id := nodes.get(id(cand)):
- edge.append(node_id)
- break
-
- else:
- node_id = nodes[obj_id] = len(nodes) + 1
- edge.append(node_id)
- edges[node_id] = arrs = []
- for cand in candidates:
- a = [cand]
- arrs.append(a)
- enqueue(cand, a)
-
- elif len(candidates) == 1:
- next_obj, = candidates
- edge.append(next_obj)
- if id(next_obj) not in nodes:
- enqueue(next_obj, edge)
-
- i += 1
- print(f'~ Step {i}', file=sys.stderr)
- print(f'~ Candidates:', file=sys.stderr)
- for e in candidates:
- print(f'~ {e}', file=sys.stderr)
-
- print(f'~ Nodes:', file=sys.stderr)
- for k, v in nodes.items():
- print(f'~ {k} = {v}', file=sys.stderr)
-
- print(f'~ Current edge:', file=sys.stderr)
- for e in edge:
- print(f'~ {e}', file=sys.stderr)
-
- return nodes, edges
-
- def find_conductors_at(self, x, y, layers, size, tol=1e-6):
- # First, find all bounding box intersections
- found = {}
- for cand, attr, cand_size, cand_mask in self.query_trace_index_tolerance((x, y), layers, size):
- cand_coord = getattr(cand, attr)
- dist = math.dist((x, y), (cand_coord.x, cand_coord.y))
- if dist <= size/2 + cand_size/2 and layers&cand_mask:
- found[id(cand)] = dist, cand
-
- if not found:
- return
+ if not found:
+ continue
- # Second, filter to match only objects that are within tolerance of closest
- min_dist = min(e[0] for e in found.values())
- for dist, cand in found.values():
- if dist < min_dist+tol:
- yield cand
+ # Second, filter to match only objects that are within tolerance of closest
+ min_dist = min(e[0] for e in found)
+ for dist, cand in found:
+ if dist < min_dist+tol and id(cand) not in visited:
+ enqueue(cand)
+ yield cand
def __after_parse__(self, parent):
@@ -567,10 +500,12 @@ class Board:
self.nets = {net.index: net.name for net in self.nets}
+
def __before_sexp__(self):
self.properties = [Property(key, value) for key, value in self.properties.items()]
self.nets = [Net(index, name) for index, name in self.nets.items()]
+
def remove(self, obj):
match obj:
case gr.Text():
@@ -608,12 +543,14 @@ class Board:
case _:
raise TypeError('Can only remove KiCad objects, cannot map generic gerbonara.cad objects for removal')
+
def remove_many(self, iterable):
iterable = {id(obj) for obj in iterable}
for field in fields(self):
if field.default_factory is list and field.name not in ('nets', 'properties'):
setattr(self, field.name, [obj for obj in getattr(self, field.name) if id(obj) not in iterable])
+
def add(self, obj):
match obj:
case gr.Text():
@@ -652,6 +589,7 @@ class Board:
for elem in self.map_gn_cad(obj):
self.add(elem)
+
def map_gn_cad(self, obj, locked=False, net_name=None):
match obj:
case cad_pr.Trace():
@@ -703,10 +641,12 @@ class Board:
v=Atom(v_align) if v_align != 'middle' else None,
mirror=flip)))
+
def unfill_zones(self):
for zone in self.zones:
zone.unfill()
+
def find_pads(self, net=None):
for fp in self.footprints:
for pad in fp.pads:
@@ -714,6 +654,7 @@ class Board:
continue
yield pad
+
def find_footprints(self, value=None, reference=None, name=None, net=None, sheetname=None, sheetfile=None):
for fp in self.footprints:
if name and not match_filter(name, fp.name):
@@ -730,6 +671,7 @@ class Board:
continue
yield fp
+
def find_traces(self, net=None, include_vias=True):
net_id = self.net_id(net, create=False)
match = lambda obj: obj.net == net_id
@@ -737,34 +679,42 @@ class Board:
if obj.net == net_id:
yield obj
+
@property
def version(self):
return self._version
+
@version.setter
def version(self, value):
if value not in SUPPORTED_FILE_FORMAT_VERSIONS:
raise FormatError(f'File format version {value} is not supported. Supported versions are {", ".join(map(str, SUPPORTED_FILE_FORMAT_VERSIONS))}.')
+
def write(self, filename=None):
with open(filename or self.original_filename, 'w') as f:
f.write(self.serialize())
+
def serialize(self):
return build_sexp(sexp(type(self), self)[0])
+
@classmethod
def open(kls, pcb_file, *args, **kwargs):
return kls.load(Path(pcb_file).read_text(), *args, **kwargs, original_filename=pcb_file)
+
@classmethod
def load(kls, data, *args, **kwargs):
return kls.parse(data, *args, **kwargs)
+
@property
def single_sided(self):
raise NotImplementedError()
+
def net_id(self, name, create=True):
if name is None:
return None
@@ -781,6 +731,7 @@ class Board:
else:
raise IndexError(f'No such net: "{name}"')
+
# FIXME vvv
def graphic_objects(self, text=False, images=False):
return chain(
generated by cgit (git 2.34.1) at 2024-11-30 23:50:10 +0000