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-rw-r--r--de.jaseg.kimesh.plugin/plugins/mesh_dialog.py773
1 files changed, 773 insertions, 0 deletions
diff --git a/de.jaseg.kimesh.plugin/plugins/mesh_dialog.py b/de.jaseg.kimesh.plugin/plugins/mesh_dialog.py
new file mode 100644
index 0000000..17dcf6a
--- /dev/null
+++ b/de.jaseg.kimesh.plugin/plugins/mesh_dialog.py
@@ -0,0 +1,773 @@
+from collections import defaultdict
+import dataclasses
+from contextlib import contextmanager
+import textwrap
+import random
+import math
+from itertools import count, islice
+import json
+import re
+from os import path
+import os
+
+import wx
+
+import pcbnew
+
+import matplotlib.cm
+import shapely
+from shapely import geometry
+from shapely.geometry import polygon
+from shapely import affinity
+import shapely.ops
+
+from . import mesh_plugin_dialog
+
+class GeneratorError(ValueError):
+ pass
+
+class AbortError(SystemError):
+ pass
+
+@dataclasses.dataclass
+class GeneratorSettings:
+ edge_clearance: float = 1.5 # mm
+ anchor: str = None # Footprint designator
+ chamfer: float = 0.0 # unit fraction
+ mask_layer_id: int = 0 # kicad layer id, populated later
+ random_seed: str = None
+ randomness: float = 1.0
+ use_keepouts: bool = True
+ use_outline: bool = True
+ save_visualization: bool = True
+ visualization_path: str = 'mesh_visualizations'
+
+ def serialize(self):
+ d = dataclasses.asdict(self)
+ d['kimesh_settings_version'] = '2.1.0'
+ return json.dumps(d).encode()
+
+ @classmethod
+ def deserialize(cls, data):
+ d = json.loads(data.decode())
+ version = d.pop('kimesh_settings_version')
+ vtup = tuple(map(int, version.split('.')))
+ if vtup > (2, 1, 0):
+ raise cls.VersionError("Project kimesh settings file is too new for this plugin's version.")
+ return cls(**d)
+
+ class VersionError(ValueError):
+ pass
+
+
+class MeshPluginMainDialog(mesh_plugin_dialog.MainDialog):
+ def __init__(self, board):
+ mesh_plugin_dialog.MainDialog.__init__(self, None)
+ self.board = board
+
+ self.m_cancelButton.Bind(wx.EVT_BUTTON, self.quit)
+ self.m_removeButton.Bind(wx.EVT_BUTTON, self.confirm_tearup_mesh)
+ self.m_generateButton.Bind(wx.EVT_BUTTON, self.generate_mesh)
+ self.m_net_prefix.Bind(wx.EVT_TEXT, self.update_net_label)
+
+ self.tearup_confirm_dialog = wx.MessageDialog(self, "", style=wx.YES_NO | wx.NO_DEFAULT)
+
+ self.nets = { str(wxs) for wxs, netinfo in board.GetNetsByName().items() }
+ self.update_net_label(None)
+ self.update_outline_warning()
+
+ self.Fit()
+
+ settings = None
+ if path.isfile(self.settings_fn()):
+ with open(self.settings_fn(), 'rb') as f:
+ try:
+ settings = GeneratorSettings.deserialize(f.read())
+ except (GeneratorSettings.VersionError, TypeError) as e:
+ wx.MessageDialog(self, "Cannot load settings: {}.".format(e), "File I/O error. Will use default settings.").ShowModal()
+
+ for i in range(pcbnew.PCB_LAYER_ID_COUNT):
+ name = board.GetLayerName(i)
+ self.m_maskLayerChoice.Append(name)
+ if name == 'User.Eco1':
+ self.m_maskLayerChoice.SetSelection(i)
+
+ def sort_key(fp):
+ ref = fp.GetReference()
+ parts = re.findall(r'[0-9]+|[^0-9]+', ref)
+ return tuple(int(part) if part.isnumeric() else part for part in parts)
+
+ self.fps = sorted(self.board.Footprints(), key=sort_key)
+ for i, fp in enumerate(self.fps):
+ ref = fp.GetReference()
+ self.m_anchorChoice.Append(ref)
+ if settings and ref == settings.anchor:
+ self.m_anchorChoice.SetSelection(i)
+
+ if settings:
+ self.m_chamferSpin.Value = settings.chamfer*100.0
+ self.m_maskLayerChoice.SetSelection(settings.mask_layer_id)
+ self.m_seedInput.Value = settings.random_seed or ''
+ self.m_randomnessSpin.Value = settings.randomness*100.0
+ self.m_edgeClearanceSpin.Value = settings.edge_clearance
+ self.m_useOutlineCheckbox.Value = settings.use_outline
+ self.m_useKeepoutCheckbox.Value = settings.use_keepouts
+ self.m_vizTextfield.Value = settings.visualization_path
+ self.m_vizCheckbox.Value = settings.save_visualization
+
+ self.SetMinSize(self.GetSize())
+
+ @contextmanager
+ def viz(self, filename):
+ if self.m_vizCheckbox.Value:
+ val = self.m_vizTextfield.Value
+ project_dir = path.dirname(self.board.GetFileName())
+ if val:
+ val = path.join(project_dir, val)
+ if not os.path.isdir(val):
+ os.mkdir(val)
+ filename = path.join(val, filename)
+
+ filename = path.join(project_dir, filename)
+ with open(filename, 'w') as f:
+ wrapper = DebugOutputWrapper(f)
+ yield wrapper
+ wrapper.save()
+
+ else:
+ wrapper = DebugOutputWrapper(None)
+ yield wrapper
+
+ def board_has_outline(self):
+ # KiCad's API is absolutely insane. As long as the board has an outline, the board outline function works
+ # alright. Now imagine the Edge.Cuts layer is empty. What would be a sane thing to do? I guess raising an error
+ # would be the best, with the second best being to return something like the hull of all objects on the other
+ # layers. Alas, KiCad doesn't do either. Instead, KiCad returns the union of the shapes of all objects on the
+ # **VISIBLE** layers, so the result of that outline function changes with which layers the user has set to
+ # visible. Whyyyyy :(
+ #
+ # We have to work around this to avoid presenting the user with a foot-gun in case they hide their mesh
+ # definition layer.
+ #
+ edge_cuts = self.board.GetLayerID('Edge.Cuts')
+ outline_objs = []
+ for drawing in self.board.GetDrawings():
+ if drawing.GetLayer() == edge_cuts:
+ return True
+ else:
+ return False
+
+ def update_outline_warning(self):
+ outlines = pcbnew.SHAPE_POLY_SET()
+ self.board.GetBoardPolygonOutlines(outlines)
+ board_outlines = list(self.poly_set_to_shapely(outlines))
+ board_mask = shapely.ops.unary_union(board_outlines)
+
+ if not self.board_has_outline() or board_mask.is_empty:
+ self.m_warningLabel.SetLabelMarkup('<b>Warning: Board outline not found</b>')
+ else:
+ self.m_warningLabel.SetLabelMarkup('')
+
+ def get_matching_nets(self):
+ prefix = self.m_net_prefix.Value
+ return { net for net in self.nets if net.startswith(prefix) }
+
+ def confirm_tearup_mesh(self, evt):
+ matching = self.get_matching_nets()
+
+ if not str(self.m_net_prefix.Value):
+ message = "You have set an empty net prefix. This will match ALL {} nets on the board. Do you really want to tear up all tracks? This cannot be undone!"
+
+ else:
+ message = "Do you really want to tear up all traces of the {} matching nets on this board? This step cannot be undone!"
+
+ message = message.format(len(matching)) + "\n\nMatching nets:\n" + ", ".join(
+ '""' if not netname else (netname[:16] + '...' if len(netname) > 16 else netname)
+ for netname in (sorted(matching)[:5] + ['...'] if len(matching) > 5 else [])
+ )
+ self.tearup_confirm_dialog.SetMessage(message)
+ self.tearup_confirm_dialog.SetYesNoLabels("Tear up {} traces".format(len(matching)), "Close")
+
+ if self.tearup_confirm_dialog.ShowModal() == wx.ID_YES:
+ self.tearup_mesh(matching)
+
+ def tearup_mesh(self, matching=None):
+ count = 0
+ anchor, target_layer_id = self.get_anchor()
+ for track in self.board.GetTracks():
+ if matching is not None and track.GetNet().GetNetname() not in matching:
+ continue
+
+ if track.GetLayer() != target_layer_id:
+ continue
+
+ count += 1
+ self.board.Remove(track)
+ print(f'Tore up {count} trace segments.')
+
+ def settings_fn(self):
+ return path.join(path.dirname(self.board.GetFileName()), 'last_kimesh_settings.json')
+
+ def get_anchor(self):
+ ref = str(self.fps[self.m_anchorChoice.GetSelection()].GetReference())
+ footprints = [ fp for fp in self.board.Footprints() if fp.GetReference() == ref ]
+ if len(footprints) == 0:
+ wx.MessageDialog(self, f'Error: Could not find anchor footprint "{ref}".').ShowModal()
+ raise ValueError()
+ if len(footprints) > 1:
+ wx.MessageDialog(self, f'Error: Multiple footprints with anchor footprint reference "{ref}".').ShowModal()
+ raise ValueError()
+ anchor = footprints[0]
+ pad0, *_ = anchor.Pads()
+ lset = pad0.GetLayerSet()
+ target_layer_id, *_ = [l for l in lset.CuStack() if lset.Contains(l)]
+ return anchor, target_layer_id
+
+ def generate_mesh(self, evt):
+ try:
+ settings = GeneratorSettings(
+ edge_clearance = float(self.m_edgeClearanceSpin.Value),
+ anchor = str(list(self.board.Footprints())[self.m_anchorChoice.GetSelection()].GetReference()),
+ chamfer = float(self.m_chamferSpin.Value)/100.0,
+ mask_layer_id = self.m_maskLayerChoice.GetSelection(),
+ random_seed = str(self.m_seedInput.Value) or None,
+ randomness = float(self.m_randomnessSpin.Value)/100.0,
+ use_outline = self.m_useOutlineCheckbox.Value,
+ use_keepouts = self.m_useKeepoutCheckbox.Value,
+ visualization_path = self.m_vizTextfield.Value,
+ save_visualization = self.m_vizCheckbox.Value)
+ except ValueError as e:
+ return wx.MessageDialog(self, "Invalid input value: {}.".format(e), "Invalid input").ShowModal()
+
+ try:
+ with open(self.settings_fn(), 'wb') as f:
+ f.write(settings.serialize())
+ print('Saved settings to', f.name)
+ except:
+ wx.MessageDialog(self, "Cannot save settings: {}.".format(e), "File I/O error").ShowModal()
+
+
+ anchor, target_layer_id = self.get_anchor()
+
+ mesh_zones = []
+ for drawing in self.board.GetDrawings():
+ if drawing.GetLayer() == settings.mask_layer_id:
+ mesh_zones.append(drawing.GetPolyShape())
+
+ if not mesh_zones:
+ return wx.MessageDialog(self, "Error: Could not find any mesh zones on the outline pattern layer.").ShowModal()
+
+ keepouts = []
+ for zone in self.board.Zones():
+ if zone.GetDoNotAllowCopperPour() and zone.GetLayerSet().Contains(target_layer_id):
+ keepouts.append(zone.Outline())
+ print(f'Found {len(keepouts)} keepout areas.')
+
+ if self.board_has_outline() and self.m_useOutlineCheckbox.Value: # Avoid foot-gun due to insane API. See note in the function.
+ outlines = pcbnew.SHAPE_POLY_SET()
+ self.board.GetBoardPolygonOutlines(outlines)
+ board_outlines = list(self.poly_set_to_shapely(outlines))
+ board_mask = shapely.ops.unary_union(board_outlines)
+ mask = board_mask.buffer(-settings.edge_clearance)
+ print('board outline bounds:', mask.bounds)
+ if mask.is_empty:
+ return wx.MessageDialog(self, "Error: Board edge clearance is set too high. There is nothing left for the mesh after applying clearance.").ShowModal()
+ else:
+ mask = None
+
+ zone_outlines = [ outline for zone in mesh_zones for outline in self.poly_set_to_shapely(zone) ]
+ zone_mask = shapely.ops.unary_union(zone_outlines)
+ if zone_mask.is_empty:
+ return wx.MessageDialog(self, "Error: Empty mesh outline on mesh outline layer. Make sure the mesh outline is defined with polygon objects only. Other shapes are not supported yet.").ShowModal()
+ elif mask is None:
+ mask = zone_mask
+ else:
+ mask = zone_mask.intersection(mask)
+ print('Mesh mask bounds:', zone_mask.bounds)
+
+ if self.m_useKeepoutCheckbox.Value:
+ keepout_outlines = [ outline for zone in keepouts for outline in self.poly_set_to_shapely(zone) ]
+ keepout_mask = shapely.ops.unary_union(keepout_outlines)
+ if not keepout_mask.is_empty:
+ mask = shapely.difference(mask, keepout_mask)
+ print('keepout mask bounds:', keepout_mask.bounds)
+ print('resulting mask bounds:', mask.bounds)
+ if mask.is_empty:
+ return wx.MessageDialog(self, "Error: After applying all keepouts, and intersecting with the board's outline, the mesh outline is empty.")
+
+ try:
+ def warn(msg):
+ dialog = wx.MessageDialog(self, msg + '\n\nDo you want to abort mesh generation?',
+ "Mesh Generation Warning").ShowModal()
+ dialog = wx.MessageDialog(self, "", style=wx.YES_NO | wx.NO_DEFAULT)
+ dialog.SetYesNoLabels("Abort", "Ignore and continue")
+
+ if self.tearup_confirm_dialog.ShowModal() == wx.ID_YES:
+ raise AbortError()
+
+ self.generate_mesh_backend(mask, anchor, net_prefix=str(self.m_net_prefix.Value), target_layer_id=target_layer_id, warn=warn, settings=settings)
+
+ except GeneratorError as e:
+ return wx.MessageDialog(self, str(e), "Mesh Generation Error").ShowModal()
+ except AbortError:
+ pass
+
+ def poly_set_to_shapely(self, poly_set):
+ for i in range(poly_set.OutlineCount()):
+ outline = poly_set.Outline(i)
+
+ def shape_line_chain_to_coords(line_chain):
+ points = []
+ for j in range(line_chain.PointCount()):
+ point = line_chain.CPoint(j)
+ points.append((pcbnew.ToMM(point.x), pcbnew.ToMM(point.y)))
+ return points
+
+ exterior = shape_line_chain_to_coords(outline)
+ interiors = [ shape_line_chain_to_coords(poly_set.Hole(i, j)) for j in range(poly_set.HoleCount(i)) ]
+ yield polygon.Polygon(exterior, interiors)
+
+ def generate_mesh_backend(self, mask, anchor, net_prefix, target_layer_id, warn=lambda s: None, settings=GeneratorSettings()):
+ anchor_outlines = list(self.poly_set_to_shapely(anchor.GetBoundingHull()))
+ if len(anchor_outlines) == 0:
+ raise GeneratorError('Could not find any outlines for anchor {}'.format(anchor.GetReference()))
+ if len(anchor_outlines) > 1:
+ warn('Anchor {} has multiple outlines. Using first outline for trace start.')
+ anchor_pads = list(sorted(anchor.Pads(), key=lambda pad: int(pad.GetNumber())))
+
+ trace_width = pcbnew.ToMM(anchor_pads[0].GetSize()[0])
+ space_width = pcbnew.ToMM(math.dist(anchor_pads[0].GetPosition(), anchor_pads[1].GetPosition())) - trace_width
+ num_traces = len(anchor_pads)
+ assert num_traces%4 == 0
+ num_traces //= 4
+ nets = [f'{net_prefix}{i}' for i in range(num_traces)]
+
+ width_per_trace = trace_width + space_width
+ grid_cell_width = width_per_trace * num_traces * 2
+ print(f'mesh cell size is {grid_cell_width}')
+
+ x0, y0 = anchor_pads[len(anchor_pads)//2].GetPosition()
+ x0, y0 = pcbnew.ToMM(x0), pcbnew.ToMM(y0)
+ xl, yl = anchor_pads[-1].GetPosition()
+ xl, yl = pcbnew.ToMM(xl), pcbnew.ToMM(yl)
+
+ mesh_angle = math.atan2(xl-x0, yl-y0)
+ print('mesh angle is', math.degrees(mesh_angle))
+ len_along = - width_per_trace/2
+ x0 += len_along * math.sin(mesh_angle)
+ y0 += len_along * math.cos(mesh_angle)
+
+ mask_xformed = affinity.translate(mask, -x0, -y0)
+ mask_xformed = affinity.rotate(mask_xformed, -mesh_angle, origin=(0, 0), use_radians=True)
+ bbox = mask_xformed.bounds
+
+ grid_x0, grid_y0 = math.floor(bbox[0]/grid_cell_width), math.floor(bbox[1]/grid_cell_width)
+ grid_origin = grid_x0*grid_cell_width, grid_y0*grid_cell_width
+ grid_rows = int(math.ceil((bbox[3] - grid_origin[1]) / grid_cell_width))
+ grid_cols = int(math.ceil((bbox[2] - grid_origin[0]) / grid_cell_width))
+ print(f'generating grid of size {grid_rows} * {grid_cols} with origin {grid_x0}, {grid_y0}')
+
+ grid = []
+ for y in range(grid_y0, grid_y0+grid_rows):
+ row = []
+ for x in range(grid_x0, grid_x0+grid_cols):
+ cell = polygon.Polygon([(0, 0), (0, 1), (1, 1), (1, 0)])
+ cell = affinity.scale(cell, grid_cell_width, grid_cell_width, origin=(0, 0))
+ cell = affinity.translate(cell, x*grid_cell_width, y*grid_cell_width)
+ cell = affinity.rotate(cell, mesh_angle, origin=(0, 0), use_radians=True)
+ cell = affinity.translate(cell, x0, y0)
+ row.append(cell)
+ grid.append(row)
+
+ num_valid = 0
+ with self.viz('mesh_grid.svg') as dbg:
+ dbg.add(mask, color='#00000020')
+
+ for y, row in enumerate(grid, start=grid_y0):
+ for x, cell in enumerate(row, start=grid_x0):
+ if mask.contains(cell):
+ if x == 0 and y == 0: # exit cell
+ color = '#ff00ff80'
+ else:
+ num_valid += 1
+ color = '#00ff0080'
+ elif mask.overlaps(cell):
+ color = '#ffff0080'
+ else:
+ color = '#ff000080'
+ dbg.add(cell, color=color)
+
+ for foo in anchor_outlines:
+ dbg.add(foo, color='#0000ff00', stroke_width=0.05, stroke_color='#000000ff')
+
+ dbg.add([[(x0-2, y0), (x0+2, y0)], [(x0, y0-2), (x0, y0+2)]], color='none', stroke_width=0.05, stroke_color='#ff0000ff')
+
+ def is_valid(cell):
+ if not mask.contains(cell):
+ return False
+ return True
+
+ def iter_neighbors(x, y):
+ if x > grid_x0:
+ yield x-1, y, 0b0100
+ if x - grid_x0 < grid_cols:
+ yield x+1, y, 0b0001
+ if y > grid_y0:
+ yield x, y-1, 0b1000
+ if y - grid_y0 < grid_rows:
+ yield x, y+1, 0b0010
+
+ def reciprocal(mask):
+ return {
+ 0b0001: 0b0100,
+ 0b0010: 0b1000,
+ 0b0100: 0b0001,
+ 0b1000: 0b0010,
+ 0b0000: 0b0000
+ }[mask]
+
+ rnd_state = random.Random(settings.random_seed)
+ def skewed_random_iter(it, mask, randomness):
+ l = list(it)
+ if rnd_state.random() < 1.0 - randomness:
+ for x, y, m in l:
+ if m == mask:
+ yield x, y, m
+ break
+ l.remove((x, y, m))
+ rnd_state.shuffle(l)
+ yield from l
+
+ def add_track(segment:geometry.LineString, net=None):
+ coords = list(segment.coords)
+ for (x1, y1), (x2, y2) in zip(coords, coords[1:]):
+ if (x1, y1) == (x2, y2): # zero-length track due to zero chamfer
+ continue
+ track = pcbnew.PCB_TRACK(self.board)
+ #track.SetStatus(track.GetStatus() | pcbnew.TRACK_AR)
+ track.SetStart(pcbnew.VECTOR2I(pcbnew.FromMM(x1), pcbnew.FromMM(y1)))
+ track.SetEnd(pcbnew.VECTOR2I(pcbnew.FromMM(x2), pcbnew.FromMM(y2)))
+ track.SetWidth(pcbnew.FromMM(trace_width))
+ track.SetLayer(target_layer_id)
+ if net is not None:
+ track.SetNet(net)
+ self.board.Add(track)
+
+ netinfos = []
+ for name in nets:
+ ni = pcbnew.NETINFO_ITEM(self.board, name)
+ self.board.Add(ni)
+ netinfos.append(ni)
+
+ not_visited = { (x, y) for x in range(grid_x0, grid_x0+grid_cols) for y in range(grid_y0, grid_y0+grid_rows) if is_valid(grid[y-grid_y0][x-grid_x0]) }
+ num_to_visit = len(not_visited)
+ track_count = 0
+ with self.viz('mesh_cells.svg') as dbg_cells,\
+ self.viz('mesh_composite.svg') as dbg_composite,\
+ self.viz('mesh_tiles.svg') as dbg_tiles,\
+ self.viz('mesh_traces.svg') as dbg_traces:
+ dbg_cells.add(mask, color='#00000020')
+ dbg_composite.add(mask, color='#00000020')
+ dbg_traces.add(mask, color='#00000020')
+ dbg_tiles.add(mask, color='#00000020')
+
+ TILE_COLORS = {
+ 0b0000: '#ffcc00ff',
+ 0b0001: '#d40000ff',
+ 0b0010: '#d40000ff',
+ 0b0011: '#ff6600ff',
+ 0b0100: '#d40000ff',
+ 0b0101: '#00d400ff',
+ 0b0110: '#ff6600ff',
+ 0b0111: '#00ccffff',
+ 0b1000: '#d40000ff',
+ 0b1001: '#ff6600ff',
+ 0b1010: '#00d400ff',
+ 0b1011: '#00ccffff',
+ 0b1100: '#ff6600ff',
+ 0b1101: '#00ccffff',
+ 0b1110: '#00ccffff',
+ 0b1111: '#ffcc00ff'}
+ x, y = -1, 0
+ visited = 0
+ key = 0
+ entry_dir = 0b0001
+ stack = []
+ depth = 0
+ max_depth = 0
+ i = 0
+ past_tiles = {}
+ def dump_output(i):
+ with self.viz(f'per-tile/step{i}.svg') as dbg_per_tile:
+ dbg_per_tile.add(mask, color='#00000020')
+ for foo in anchor_outlines:
+ dbg_per_tile.add(foo, color='#00000080', stroke_width=0.05, stroke_color='#00000000')
+
+ for le_y, row in enumerate(grid):
+ for le_x, cell in enumerate(row):
+ if mask.contains(cell):
+ if cell == exit_cell[0]:
+ color = '#ff00ff80'
+ elif any(ol.overlaps(cell) for ol in anchor_outlines):
+ color = '#ffff0080'
+ elif any(ol.contains(cell) for ol in anchor_outlines):
+ color = '#ff000080'
+ else:
+ color = '#00ff0080'
+ elif mask.overlaps(cell):
+ color = '#ffff0080'
+ else:
+ color = '#ff000080'
+ dbg_per_tile.add(cell, color=color)
+
+ for (le_x, le_y), (stroke_color, segments) in past_tiles.items():
+ for segment in segments:
+ segment = affinity.scale(segment, grid_cell_width, grid_cell_width, origin=(0, 0))
+ segment = affinity.translate(segment, le_x*grid_cell_width, le_y*grid_cell_width)
+ segment = affinity.rotate(segment, mesh_angle, origin=(0, 0), use_radians=True)
+ segment = affinity.translate(segment, x0, y0)
+ dbg_per_tile.add(segment, stroke_width=trace_width, color='#ff000000', stroke_color=stroke_color)
+
+ armed = False
+ while not_visited or stack:
+ for n_x, n_y, bmask in skewed_random_iter(iter_neighbors(x, y), entry_dir, settings.randomness):
+ if (n_x, n_y) in not_visited:
+ dbg_composite.add(grid[n_y-grid_y0][n_x-grid_x0], color=('visit_depth', depth), opacity=1.0)
+ dbg_cells.add(grid[n_y-grid_y0][n_x-grid_x0], color=('visit_depth', depth), opacity=1.0)
+ key |= bmask
+ stack.append((x, y, key, bmask, depth))
+ not_visited.remove((n_x, n_y))
+ visited += 1
+ depth += 1
+ i += 1
+ armed = True
+ max_depth = max(depth, max_depth)
+
+ past_tiles[x, y] = (TILE_COLORS[key],
+ [segment
+ for segment, _net in Pattern.render(key, num_traces, settings.chamfer) ])
+
+ x, y, key, entry_dir = n_x, n_y, reciprocal(bmask), bmask
+ #dump_output(i)
+ break
+ else:
+ stroke_color = TILE_COLORS[key]
+ past_tiles[x, y] = (stroke_color,
+ [segment for segment, _net in Pattern.render(key, num_traces, settings.chamfer) ])
+ for segment, net in Pattern.render(key, num_traces, settings.chamfer):
+ if is_valid(grid[y-grid_y0][x-grid_x0]):
+ segment = affinity.scale(segment, grid_cell_width, grid_cell_width, origin=(0, 0))
+ segment = affinity.translate(segment, x*grid_cell_width, y*grid_cell_width)
+ segment = affinity.rotate(segment, mesh_angle, origin=(0, 0), use_radians=True)
+ segment = affinity.translate(segment, x0, y0)
+ dbg_composite.add(segment, stroke_width=trace_width, color='#ff000000', stroke_color='#ffffff60')
+ dbg_traces.add(segment, stroke_width=trace_width, color='#ff000000', stroke_color='#000000ff')
+ dbg_tiles.add(segment, stroke_width=trace_width, color='#ff000000', stroke_color=stroke_color)
+ add_track(segment, netinfos[net]) # FIXME (works, disabled for debug)
+ track_count += 1
+ if not stack:
+ break
+ if armed:
+ i += 1
+ #dump_output(i)
+ armed = False
+ *stack, (x, y, key, entry_dir, depth) = stack
+
+ dbg_cells.scale_colors('visit_depth', max_depth)
+ dbg_composite.scale_colors('visit_depth', max_depth)
+
+ for foo in anchor_outlines:
+ dbg_cells.add(foo, color='#00000080', stroke_width=0.05, stroke_color='#00000000')
+ dbg_traces.add(foo, color='#00000080', stroke_width=0.05, stroke_color='#00000000')
+ dbg_composite.add(foo, color='#00000080', stroke_width=0.05, stroke_color='#00000000')
+ dbg_tiles.add(foo, color='#00000080', stroke_width=0.05, stroke_color='#00000000')
+
+
+ print(f'Added {track_count} trace segments.')
+
+ #pcbnew.Refresh()
+ #self.tearup_mesh()
+ # TODO generate
+
+ def update_net_label(self, evt):
+ self.m_netLabel.SetLabel('Like: ' + ', '.join(f'{self.m_net_prefix.Value}{i}' for i in range(3)) + ', ...')
+
+ def quit(self, evt):
+ self.Destroy()
+
+
+class Pattern:
+ @staticmethod
+ def render(key, n, cd=0):
+ yield from Pattern.LUT[key](n, cd=math.tan(math.pi/8) * cd)
+
+ def draw_I(n, cd):
+ for i in range(n):
+ sp = (i+0.5) * (1/(2*n))
+ yield geometry.LineString([(sp, 0), (sp, 1)]), i
+ sp = (2*n-1-i+0.5) * (1/(2*n))
+ yield geometry.LineString([(sp, 0), (sp, 1)]), i
+
+ def draw_U(n, cd):
+ pitch = (1/(2*n))
+ cd *= pitch # chamfer depth
+ for i in range(n):
+ sp = (i+0.5) * pitch
+ yield geometry.LineString([(sp, 0), (sp, 1-sp-cd), (sp+cd, 1-sp), (1-sp-cd, 1-sp), (1-sp, 1-sp-cd), (1-sp, 0)]), i
+
+ def draw_L(n, cd):
+ pitch = (1/(2*n))
+ cd *= pitch # chamfer depth
+ for i in range(n):
+ sp = (i+0.5) * pitch
+ yield geometry.LineString([(sp, 0), (sp, 1-sp-cd), (sp+cd, 1-sp), (1, 1-sp)]), i
+ sp = (2*n-1-i+0.5) * pitch
+ yield geometry.LineString([(sp, 0), (sp, 1-sp-cd), (sp+cd, 1-sp), (1, 1-sp)]), i
+
+ def draw_T(n, cd):
+ pitch = (1/(2*n))
+ cd *= pitch # chamfer depth
+ for i in range(n):
+ sp = (i+0.5) * pitch
+ # through line
+ yield geometry.LineString([(0, sp), (1, sp)]), i
+ # two corners on the opposite side
+ yield geometry.LineString([(0, 1-sp), (sp-cd, 1-sp), (sp, 1-sp+cd), (sp, 1)]), i
+ yield geometry.LineString([(1-sp, 1), (1-sp, 1-sp+cd), (1-sp+cd, 1-sp), (1, 1-sp)]), i
+
+ def draw_X(n, cd):
+ pitch = (1/(2*n))
+ cd *= pitch # chamfer depth
+ for i in range(n):
+ sp = (i+0.5) * pitch
+ yield geometry.LineString([(0, sp), (sp-cd, sp), (sp, sp-cd), (sp, 0)]), i
+ yield geometry.LineString([(1-sp, 0), (1-sp, sp-cd), (1-sp+cd, sp), (1, sp)]), i
+ yield geometry.LineString([(0, 1-sp), (sp-cd, 1-sp), (sp, 1-sp+cd), (sp, 1)]), i
+ yield geometry.LineString([(1-sp, 1), (1-sp, 1-sp+cd), (1-sp+cd, 1-sp), (1, 1-sp)]), i
+
+ def rotate(pattern, deg):
+ def wrapper(n, *args, **kwargs):
+ for segment, net in pattern(n, *args, **kwargs):
+ yield affinity.rotate(segment, deg, origin=(0.5, 0.5)), net
+ return wrapper
+
+ def raise_error(n, *args, **kwargs):
+ #raise ValueError('Tried to render invalid cell. This is a bug.')
+ return []
+
+ LUT = {
+ 0b0000: raise_error,
+ 0b0001: rotate(draw_U, 90),
+ 0b0010: rotate(draw_U, 180),
+ 0b0011: rotate(draw_L, 90),
+ 0b0100: rotate(draw_U, -90),
+ 0b0101: rotate(draw_I, -90),
+ 0b0110: rotate(draw_L, 180),
+ 0b0111: draw_T,
+ 0b1000: draw_U,
+ 0b1001: draw_L,
+ 0b1010: draw_I,
+ 0b1011: rotate(draw_T, -90),
+ 0b1100: rotate(draw_L, -90),
+ 0b1101: rotate(draw_T, 180),
+ 0b1110: rotate(draw_T, 90),
+ 0b1111: draw_X
+ }
+
+
+def virihex(val, max=1.0, alpha=1.0):
+ r, g, b, _a = matplotlib.cm.viridis(val/max)
+ r, g, b, a = [ int(round(0xff*c)) for c in [r, g, b, alpha] ]
+ return f'#{r:02x}{g:02x}{b:02x}{a:02x}'
+
+class DebugOutputWrapper:
+ def __init__(self, f):
+ self.f = f
+ self.objs = []
+
+ def scale_colors(self, group, max_value):
+ self.objs = [
+ (obj,
+ (virihex(color[1], max=max_value) if isinstance(color, tuple) and color[0] == group else color,
+ *rest))
+ for obj, (color, *rest) in self.objs ]
+
+ def add(self, obj, color=None, stroke_width=0, stroke_color=None, opacity=1.0):
+ self.objs.append((obj, (color, stroke_color, stroke_width, opacity)))
+
+ def gen_svg(self, obj, fill_color=None, stroke_color=None, stroke_width=None, opacity=1.0):
+ fill_color = fill_color or '#ff0000aa'
+ stroke_color = stroke_color or '#000000ff'
+ stroke_width = 0 if stroke_width is None else stroke_width
+
+ if isinstance(obj, geometry.MultiPolygon):
+ out = ''
+ for geom in obj.geoms:
+ out += self.gen_svg(geom, fill_color, stroke_color, stroke_width, opacity)
+ return out
+
+ elif isinstance(obj, polygon.Polygon):
+ exterior_coords = [ ["{},{}".format(*c) for c in obj.exterior.coords] ]
+ interior_coords = [ ["{},{}".format(*c) for c in interior.coords] for interior in obj.interiors ]
+ all_coords = exterior_coords + interior_coords
+ path = " ".join([
+ "M {0} L {1} z".format(coords[0], " L ".join(coords[1:]))
+ for coords in all_coords])
+
+ elif isinstance(obj, geometry.LineString):
+ all_coords = [ ["{},{}".format(*c) for c in obj.coords] ]
+ path = " ".join([
+ "M {0} L {1}".format(coords[0], " L ".join(coords[1:]))
+ for coords in all_coords])
+
+ elif isinstance(obj, list):
+ all_coords = [ [f'{x},{y}' for x, y in seg] for seg in obj ]
+ path = " ".join([
+ "M {0} L {1}".format(coords[0], " L ".join(coords[1:]))
+ for coords in all_coords])
+
+ else:
+ raise ValueError(f'Unhandled shapely object type {type(obj)}')
+
+ return (f'<path fill-rule="evenodd" fill="{fill_color}" opacity="{opacity}" stroke="{stroke_color}" '
+ f'stroke-width="{stroke_width}" d="{path}" />')
+
+ def save(self, margin:'unit'=5, scale:'px/unit'=10):
+ #specify margin in coordinate units
+ margin = 5
+
+ bboxes = [ list(obj.bounds) for obj, _style in self.objs if not isinstance(obj, list) ]
+ min_x = min( bbox[0] for bbox in bboxes ) - margin
+ min_y = min( bbox[1] for bbox in bboxes ) - margin
+ max_x = max( bbox[2] for bbox in bboxes ) + margin
+ max_y = max( bbox[3] for bbox in bboxes ) + margin
+
+ width = max_x - min_x
+ height = max_y - min_y
+
+ props = {
+ 'version': '1.1',
+ 'baseProfile': 'full',
+ 'width': '{width:.0f}px'.format(width = width*scale),
+ 'height': '{height:.0f}px'.format(height = height*scale),
+ 'viewBox': '%.1f,%.1f,%.1f,%.1f' % (min_x, min_y, width, height),
+ 'xmlns': 'http://www.w3.org/2000/svg',
+ 'xmlns:ev': 'http://www.w3.org/2001/xml-events',
+ 'xmlns:xlink': 'http://www.w3.org/1999/xlink'
+ }
+
+ if self.f is not None:
+ self.f.write(textwrap.dedent(r'''
+ <?xml version="1.0" encoding="utf-8" ?>
+ <svg {attrs:s}>
+ {data}
+ </svg>
+ ''').format(
+ attrs = ' '.join(['{key:s}="{val:s}"'.format(key = key, val = props[key]) for key in props]),
+ data = '\n'.join(self.gen_svg(obj, *style) for obj, style in self.objs)
+ ).strip())
+
+def show_dialog(board):
+ dialog = MeshPluginMainDialog(board)
+ dialog.ShowModal()
+ return dialog