kopia lustrzana https://gitlab.com/gerbolyze/gerbonara
autoroute
rodzic
f711c1d91c
commit
cff22b9e08
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@ -2,12 +2,10 @@
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Library for handling KiCad's PCB files (`*.kicad_mod`).
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"""
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import sys
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import math
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from pathlib import Path
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from dataclasses import field, KW_ONLY, fields
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from itertools import chain
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from collections import defaultdict
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import re
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import fnmatch
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import functools
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@ -352,6 +350,7 @@ class Board:
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b.__after_parse__(None)
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return b
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def init_default_layers(self, inner_layers=0):
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inner = [(i, f'In{i}.Cu', 'signal', None) for i in range(1, inner_layers+1)]
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self.layers = [LayerSettings(idx, name, Atom(ltype)) for idx, name, ltype, cname in [
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@ -386,12 +385,13 @@ class Board:
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(57, 'User.8', 'user', None),
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(58, 'User.9', 'user', None)]]
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def rebuild_trace_index(self):
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idx = self._trace_index = rtree.index.Index()
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id_map = self._trace_index_map = {}
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for obj in chain(self.track_segments, self.track_arcs):
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for field in ('start', 'end'):
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obj_id = id(obj)
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for i, field in enumerate(('start', 'end')):
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obj_id = id(obj) + i
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coord = getattr(obj, field)
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id_map[obj_id] = obj, field, obj.width, obj.layer_mask
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idx.insert(obj_id, (coord.x, coord.y, coord.x, coord.y))
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@ -407,6 +407,7 @@ class Board:
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id_map[obj_id] = via, 'at', via.size, via.layer_mask
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idx.insert(obj_id, (via.at.x, via.at.y, via.at.x, via.at.y))
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@staticmethod
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def _require_trace_index(fun):
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@functools.wraps(fun)
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@ -417,6 +418,7 @@ class Board:
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return fun(self, *args, **kwargs)
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return wrapper
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@_require_trace_index
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def query_trace_index_nearest(self, point, layers='*.Cu', n=1):
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layers = layer_mask(layers)
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@ -427,10 +429,10 @@ class Board:
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if layers & mask:
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yield entry
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@_require_trace_index
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def query_trace_index_tolerance(self, point, layers='*.Cu', tol=10e-6):
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layers = layer_mask(layers)
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print(f'query {layers:08x}', file=sys.stderr)
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x, y = point
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for obj_id in self._trace_index.intersection((x-tol, y-tol, x+tol, y+tol)):
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@ -439,6 +441,7 @@ class Board:
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if layers & mask and math.dist((attr.x, attr.y), (x, y)) <= tol:
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yield entry
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def find_connected_traces(self, obj, layers='*.Cu', tol=10e-6):
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search_frontier = []
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visited = set()
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@ -463,101 +466,31 @@ class Board:
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raise TypeError(f'Finding connected traces for {type(obj)} objects is not (yet) supported.')
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enqueue(obj)
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yield obj
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filter_layers = layer_mask(layers)
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while search_frontier:
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coord, size, layers = search_frontier.pop()
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x, y = coord.x, coord.y
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for cand in self.find_conductors_at(x, y, layers & filter_layers, size):
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if id(cand) not in visited:
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# First, find all bounding box intersections
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found = []
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for cand, attr, cand_size, cand_mask in self.query_trace_index_tolerance((x, y), layers&filter_layers, size):
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cand_coord = getattr(cand, attr)
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dist = math.dist((x, y), (cand_coord.x, cand_coord.y))
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if dist <= size/2 + cand_size/2 and layers&cand_mask:
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found.append((dist, cand))
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if not found:
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continue
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# Second, filter to match only objects that are within tolerance of closest
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min_dist = min(e[0] for e in found)
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for dist, cand in found:
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if dist < min_dist+tol and id(cand) not in visited:
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enqueue(cand)
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yield cand
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def track_skeleton(self, start, tol=10e-6):
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search_frontier = []
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def enqueue(obj, arr):
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if isinstance(obj, (TrackSegment, TrackArc)):
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search_frontier.append((id(obj), arr, False, obj.start, obj.width, obj.layer_mask))
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search_frontier.append((id(obj), arr, False, obj.end, obj.width, obj.layer_mask))
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elif isinstance(obj, Via):
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search_frontier.append((id(obj), arr, True, obj.at, obj.size, obj.layer_mask))
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elif isinstance(obj, Pad):
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search_frontier.append((id(obj), arr, True, obj.at, max(obj.size.x, obj.size.y), obj.layer_mask))
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else:
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raise TypeError(f'Track skeleton starting at {type(obj)} objects is not (yet) supported.')
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first_edge = []
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enqueue(start, first_edge)
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nodes = {id(start): 1}
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edges = {1: [first_edge]}
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i = 0
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while search_frontier:
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obj_id, edge, force_node, coord, size, layers = search_frontier.pop()
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print(f'current entry {obj_id} {force_node} {coord} {size} {layers:08x}', file=sys.stderr)
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x, y = coord.x, coord.y
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candidates = [cand for cand in self.find_conductors_at(x, y, layers, size) if id(cand) != obj_id]
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if force_node or len(candidates) > 1:
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for cand in candidates:
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if node_id := nodes.get(id(cand)):
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edge.append(node_id)
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break
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else:
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node_id = nodes[obj_id] = len(nodes) + 1
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edge.append(node_id)
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edges[node_id] = arrs = []
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for cand in candidates:
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a = [cand]
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arrs.append(a)
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enqueue(cand, a)
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elif len(candidates) == 1:
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next_obj, = candidates
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edge.append(next_obj)
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if id(next_obj) not in nodes:
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enqueue(next_obj, edge)
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i += 1
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print(f'~ Step {i}', file=sys.stderr)
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print(f'~ Candidates:', file=sys.stderr)
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for e in candidates:
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print(f'~ {e}', file=sys.stderr)
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print(f'~ Nodes:', file=sys.stderr)
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for k, v in nodes.items():
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print(f'~ {k} = {v}', file=sys.stderr)
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print(f'~ Current edge:', file=sys.stderr)
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for e in edge:
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print(f'~ {e}', file=sys.stderr)
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return nodes, edges
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def find_conductors_at(self, x, y, layers, size, tol=1e-6):
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# First, find all bounding box intersections
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found = {}
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for cand, attr, cand_size, cand_mask in self.query_trace_index_tolerance((x, y), layers, size):
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cand_coord = getattr(cand, attr)
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dist = math.dist((x, y), (cand_coord.x, cand_coord.y))
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if dist <= size/2 + cand_size/2 and layers&cand_mask:
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found[id(cand)] = dist, cand
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if not found:
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return
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# Second, filter to match only objects that are within tolerance of closest
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min_dist = min(e[0] for e in found.values())
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for dist, cand in found.values():
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if dist < min_dist+tol:
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yield cand
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def __after_parse__(self, parent):
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self.properties = {prop.key: prop.value for prop in self.properties}
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@ -567,10 +500,12 @@ class Board:
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self.nets = {net.index: net.name for net in self.nets}
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def __before_sexp__(self):
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self.properties = [Property(key, value) for key, value in self.properties.items()]
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self.nets = [Net(index, name) for index, name in self.nets.items()]
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def remove(self, obj):
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match obj:
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case gr.Text():
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@ -608,12 +543,14 @@ class Board:
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case _:
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raise TypeError('Can only remove KiCad objects, cannot map generic gerbonara.cad objects for removal')
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def remove_many(self, iterable):
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iterable = {id(obj) for obj in iterable}
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for field in fields(self):
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if field.default_factory is list and field.name not in ('nets', 'properties'):
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setattr(self, field.name, [obj for obj in getattr(self, field.name) if id(obj) not in iterable])
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def add(self, obj):
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match obj:
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case gr.Text():
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@ -652,6 +589,7 @@ class Board:
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for elem in self.map_gn_cad(obj):
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self.add(elem)
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def map_gn_cad(self, obj, locked=False, net_name=None):
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match obj:
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case cad_pr.Trace():
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@ -703,10 +641,12 @@ class Board:
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v=Atom(v_align) if v_align != 'middle' else None,
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mirror=flip)))
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def unfill_zones(self):
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for zone in self.zones:
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zone.unfill()
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def find_pads(self, net=None):
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for fp in self.footprints:
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for pad in fp.pads:
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continue
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yield pad
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def find_footprints(self, value=None, reference=None, name=None, net=None, sheetname=None, sheetfile=None):
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for fp in self.footprints:
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if name and not match_filter(name, fp.name):
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continue
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yield fp
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def find_traces(self, net=None, include_vias=True):
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net_id = self.net_id(net, create=False)
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match = lambda obj: obj.net == net_id
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if obj.net == net_id:
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yield obj
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@property
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def version(self):
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return self._version
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@version.setter
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def version(self, value):
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if value not in SUPPORTED_FILE_FORMAT_VERSIONS:
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raise FormatError(f'File format version {value} is not supported. Supported versions are {", ".join(map(str, SUPPORTED_FILE_FORMAT_VERSIONS))}.')
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def write(self, filename=None):
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with open(filename or self.original_filename, 'w') as f:
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f.write(self.serialize())
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def serialize(self):
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return build_sexp(sexp(type(self), self)[0])
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@classmethod
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def open(kls, pcb_file, *args, **kwargs):
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return kls.load(Path(pcb_file).read_text(), *args, **kwargs, original_filename=pcb_file)
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@classmethod
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def load(kls, data, *args, **kwargs):
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return kls.parse(data, *args, **kwargs)
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@property
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def single_sided(self):
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raise NotImplementedError()
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def net_id(self, name, create=True):
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if name is None:
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return None
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@ -781,6 +731,7 @@ class Board:
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else:
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raise IndexError(f'No such net: "{name}"')
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# FIXME vvv
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def graphic_objects(self, text=False, images=False):
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return chain(
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@ -14,6 +14,7 @@ from gerbonara.cad.kicad import footprints as kicad_fp
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from gerbonara.cad.kicad import graphical_primitives as kicad_gr
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from gerbonara.cad.kicad import primitives as kicad_pr
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from gerbonara.utils import Tag
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from gerbonara import graphic_primitives as gp
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import click
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@ -46,6 +47,95 @@ def angle_between_vectors(va, vb):
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angle += 2*pi
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return angle
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def traces_to_gmsh(traces, mesh_out, bbox, model_name='gerbonara_board', log=True, copper_thickness=35e-6, board_thickness=0.8, air_box_margin=5.0):
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import gmsh
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occ = gmsh.model.occ
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eps = 1e-6
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board_thickness -= 2*copper_thickness
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gmsh.initialize()
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gmsh.model.add('gerbonara_board')
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if log:
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gmsh.logger.start()
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trace_tags = {}
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trace_ends = set()
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render_cache = {}
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for i, tr in enumerate(traces):
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layer = tr[1].layer
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z0 = 0 if layer == 'F.Cu' else -(board_thickness+copper_thickness)
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prims = [prim
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for elem in tr
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for obj in elem.render(cache=render_cache)
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for prim in obj.to_primitives()]
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tags = []
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for prim in prims:
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if isinstance(prim, gp.Line):
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length = dist((prim.x1, prim.y1), (prim.x2, prim.y2))
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box_tag = occ.addBox(0, -prim.width/2, 0, length, prim.width, copper_thickness)
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angle = atan2(prim.y2 - prim.y1, prim.x2 - prim.x1)
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occ.rotate([(3, box_tag)], 0, 0, 0, 0, 0, 1, angle)
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occ.translate([(3, box_tag)], prim.x1, prim.y1, z0)
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tags.append(box_tag)
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for x, y in ((prim.x1, prim.y1), (prim.x2, prim.y2)):
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disc_id = (round(x, 3), round(y, 3), round(z0, 3), round(prim.width, 3))
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if disc_id in trace_ends:
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continue
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trace_ends.add(disc_id)
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cylinder_tag = occ.addCylinder(x, y, z0, 0, 0, copper_thickness, prim.width/2)
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tags.append(cylinder_tag)
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print('fusing', tags)
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tags, tag_map = occ.fuse([(3, tags[0])], [(3, tag) for tag in tags[1:]])
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print(tags)
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assert len(tags) == 1
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(_dim, tag), = tags
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trace_tags[i] = tag
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(x1, y1), (x2, y2) = bbox
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substrate = occ.addBox(x1, y1, -board_thickness, x2-x1, y2-y1, board_thickness)
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x1, y1 = x1-air_box_margin, y1-air_box_margin
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x2, y2 = x2+air_box_margin, y2+air_box_margin
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w, d = x2-x1, y2-y1
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z0 = -board_thickness-air_box_margin
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ab_h = board_thickness + 2*air_box_margin
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airbox = occ.addBox(x1, y1, z0, w, d, ab_h)
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print('Cutting airbox')
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occ.cut([(3, airbox)], [(3, tag) for tag in trace_tags.values()], removeObject=True, removeTool=False)
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print('Fragmenting')
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fragment_tags, fragment_hierarchy = occ.fragment([(3, airbox)], [(3, substrate)] + [(3, tag) for tag in trace_tags.values()])
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print('Synchronizing')
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occ.synchronize()
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substrate_physical = gmsh.model.add_physical_group(3, [substrate], name='substrate')
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airbox_physical = gmsh.model.add_physical_group(3, [airbox], name='airbox')
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trace_physical_surfaces = [
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gmsh.model.add_physical_group(2, list(gmsh.model.getAdjacencies(3, tag)[1]), name=f'trace{i}')
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for i, tag in trace_tags.items()]
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airbox_adjacent = set(gmsh.model.getAdjacencies(3, airbox)[1])
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in_bbox = {tag for _dim, tag in gmsh.model.getEntitiesInBoundingBox(x1+eps, y1+eps, z0+eps, x1+w-eps, y1+d-eps, z0+ab_h-eps, dim=22)}
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airbox_physical_surface = gmsh.model.add_physical_group(2, list(airbox_adjacent - in_bbox), name='airbox_surface')
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gmsh.option.setNumber('Mesh.MeshSizeFromCurvature', 90)
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gmsh.option.setNumber('Mesh.Smoothing', 10)
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gmsh.option.setNumber('Mesh.Algorithm3D', 10)
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gmsh.option.setNumber('Mesh.MeshSizeMax', 0.2e-3)
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gmsh.option.setNumber('General.NumThreads', 12)
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print('Meshing')
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gmsh.model.mesh.generate(dim=3)
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print('Writing')
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gmsh.write(str(mesh_out))
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class SVGPath:
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def __init__(self, **attrs):
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self.d = ''
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@ -143,12 +233,13 @@ def print_valid_twists(ctx, param, value):
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@click.option('--show-twists', callback=print_valid_twists, expose_value=False, type=int, is_eager=True, help='Calculate and show valid --twists counts for the given number of turns. Takes the number of turns as a value.')
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@click.option('--clearance', type=float, default=None)
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@click.option('--arc-tolerance', type=float, default=0.02)
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@click.option('--mesh-out', type=click.Path(writable=True, dir_okay=False, path_type=Path))
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@click.option('--clipboard/--no-clipboard', help='Use clipboard integration (requires wl-clipboard)')
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@click.option('--counter-clockwise/--clockwise', help='Direction of generated spiral. Default: clockwise when wound from the inside.')
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@click.version_option()
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def generate(outfile, turns, outer_diameter, inner_diameter, via_diameter, via_drill, via_offset, trace_width, clearance,
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footprint_name, layer_pair, twists, clipboard, counter_clockwise, keepout_zone, keepout_margin,
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arc_tolerance, pcb):
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arc_tolerance, pcb, mesh_out):
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if 'WAYLAND_DISPLAY' in os.environ:
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copy, paste, cliputil = ['wl-copy'], ['wl-paste'], 'xclip'
|
||||
else:
|
||||
|
@ -157,6 +248,9 @@ def generate(outfile, turns, outer_diameter, inner_diameter, via_diameter, via_d
|
|||
if gcd(twists, turns) != 1:
|
||||
raise click.ClickException('For the geometry to work out, the --twists parameter must be co-prime to --turns, i.e. the two must have 1 as their greatest common divisor. You can print valid values for --twists by running this command with --show-twists [turns number].')
|
||||
|
||||
if mesh_out and not pcb:
|
||||
raise click.ClickException('--pcb is required when --mesh-out is used.')
|
||||
|
||||
outer_radius = outer_diameter/2
|
||||
inner_radius = inner_diameter/2
|
||||
turns_per_layer = turns/2
|
||||
|
@ -326,13 +420,13 @@ def generate(outfile, turns, outer_diameter, inner_diameter, via_diameter, via_d
|
|||
xn, yn = x0, y0
|
||||
points = [(x0, y0)]
|
||||
dists = []
|
||||
for i in range(fn+1):
|
||||
for i in range(fn):
|
||||
r, g, b, _a = mpl.cm.plasma(start_frac + (end_frac - start_frac)/fn * (i + 0.5))
|
||||
path = SVGPath(fill='none', stroke=f'#{round(r*255):02x}{round(g*255):02x}{round(b*255):02x}', stroke_width=trace_width, stroke_linejoin='round', stroke_linecap='round')
|
||||
svg_stuff.append(path)
|
||||
xp, yp = xn, yn
|
||||
r = r1 + i*(r2-r1)/fn
|
||||
a = a1 + i*(a2-a1)/fn
|
||||
r = r1 + (i+1)*(r2-r1)/fn
|
||||
a = a1 + (i+1)*(a2-a1)/fn
|
||||
xn, yn = cos(a)*r, sin(a)*r
|
||||
path.move(xp, yp)
|
||||
path.line(xn, yn)
|
||||
|
@ -358,7 +452,6 @@ def generate(outfile, turns, outer_diameter, inner_diameter, via_diameter, via_d
|
|||
|
||||
inverse = {}
|
||||
for i in range(twists):
|
||||
#print(i, i*turns % twists, file=sys.stderr)
|
||||
inverse[i*turns%twists] = i
|
||||
|
||||
svg_vias = []
|
||||
|
@ -373,7 +466,7 @@ def generate(outfile, turns, outer_diameter, inner_diameter, via_diameter, via_d
|
|||
|
||||
xv, yv = inner_via_ring_radius*cos(fold_angle), inner_via_ring_radius*sin(fold_angle)
|
||||
pads.append(make_via(xv, yv, layer_pair))
|
||||
if via_offset > 0:
|
||||
if not isclose(via_offset, 0, abs_tol=1e-6):
|
||||
lines.append(make_line(xn, yn, xv, yv, layer_pair[0]))
|
||||
lines.append(make_line(xn, yn, xv, yv, layer_pair[1]))
|
||||
svg_vias.append(Tag('circle', cx=xv, cy=yv, r=via_diameter/2, stroke='none', fill='white'))
|
||||
|
@ -382,7 +475,7 @@ def generate(outfile, turns, outer_diameter, inner_diameter, via_diameter, via_d
|
|||
if i > 0:
|
||||
xv, yv = outer_via_ring_radius*cos(start_angle), outer_via_ring_radius*sin(start_angle)
|
||||
pads.append(make_via(xv, yv, layer_pair))
|
||||
if via_offset > 0:
|
||||
if not isclose(via_offset, 0, abs_tol=1e-6):
|
||||
lines.append(make_line(x0, y0, xv, yv, layer_pair[0]))
|
||||
lines.append(make_line(x0, y0, xv, yv, layer_pair[1]))
|
||||
svg_vias.append(Tag('circle', cx=xv, cy=yv, r=via_diameter/2, stroke='none', fill='white'))
|
||||
|
@ -390,8 +483,10 @@ def generate(outfile, turns, outer_diameter, inner_diameter, via_diameter, via_d
|
|||
|
||||
print(f'Approximate track length: {clen*twists*2:.2f} mm', file=sys.stderr)
|
||||
|
||||
pads.append(make_pad(1, [layer_pair[0]], outer_radius, 0))
|
||||
pads.append(make_pad(2, [layer_pair[1]], outer_radius, 0))
|
||||
top_pad = make_pad(1, [layer_pair[0]], outer_radius, 0)
|
||||
pads.append(top_pad)
|
||||
bottom_pad = make_pad(2, [layer_pair[1]], outer_radius, 0)
|
||||
pads.append(bottom_pad)
|
||||
|
||||
svg_stuff += svg_vias
|
||||
|
||||
|
@ -461,8 +556,38 @@ def generate(outfile, turns, outer_diameter, inner_diameter, via_diameter, via_d
|
|||
vias=[kicad_pcb.Via.from_pad(pad) for pad in pads if pad.type == kicad_pcb.Atom.thru_hole])
|
||||
obj.rebuild_trace_index()
|
||||
seg = obj.track_segments[-1]
|
||||
for e in obj.find_connected_traces(seg, layers=seg.layer_mask):
|
||||
print(getattr(e, 'layer', ''), str(e)[:80], file=sys.stderr)
|
||||
traces = []
|
||||
end = top_pad
|
||||
layer = 'F.Cu'
|
||||
while True:
|
||||
tr = list(obj.find_connected_traces(end, layers=[layer]))
|
||||
traces.append(tr)
|
||||
if not isinstance(tr[-1], kicad_pcb.Via):
|
||||
break
|
||||
layer = 'B.Cu' if layer == 'F.Cu' else 'F.Cu'
|
||||
end = tr[-1]
|
||||
# remove start pad
|
||||
traces[0] = traces[0][1:]
|
||||
|
||||
r = outer_diameter/2 + 20
|
||||
traces_to_gmsh(traces, mesh_out, ((-r, -r), (r, r)))
|
||||
|
||||
# for trace in traces:
|
||||
# print(f'Trace {i}', file=sys.stderr)
|
||||
# print(f' Length: {len(trace)}', file=sys.stderr)
|
||||
# print(f' Start: {trace[0]}', file=sys.stderr)
|
||||
# print(f' End: {trace[-1]}', file=sys.stderr)
|
||||
# print(f' Layer: {trace[1].layer}', file=sys.stderr)
|
||||
|
||||
#for e in obj.find_connected_traces(seg, layers=seg.layer_mask):
|
||||
# print(getattr(e, 'layer', ''), str(e)[:80], file=sys.stderr)
|
||||
#nodes, edges = obj.track_skeleton(pads[-1])
|
||||
#for node, node_edges in edges.items():
|
||||
# print(f'Node {node} with {len(node_edges)} edges', file=sys.stderr)
|
||||
# for i, e in enumerate(node_edges):
|
||||
# print(f' Edge {i}', file=sys.stderr)
|
||||
# for elem in e:
|
||||
# print(' ', elem, file=sys.stderr)
|
||||
|
||||
else:
|
||||
obj = kicad_fp.Footprint(
|
||||
|
|
Ładowanie…
Reference in New Issue