randomized maze generation works
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jaseg
parent
a7398d846a
commit
5059950c50
2 changed files with 165 additions and 23 deletions
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@ -45,7 +45,7 @@
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<property name="minimum_size"></property>
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<property name="name">MainDialog</property>
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<property name="pos"></property>
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<property name="size">588,356</property>
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<property name="size">751,480</property>
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<property name="style">wxCLOSE_BOX|wxDEFAULT_DIALOG_STYLE|wxMINIMIZE_BOX|wxRESIZE_BORDER|wxSTAY_ON_TOP</property>
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<property name="subclass">; ; forward_declare</property>
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<property name="title">Security Mesh Generator Plugin</property>
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@ -1,11 +1,16 @@
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from collections import defaultdict
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from dataclasses import dataclass
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from contextlib import contextmanager
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import textwrap
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import random
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import wx
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import pcbnew
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import matplotlib.cm
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import shapely
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from shapely import geometry
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from shapely.geometry import polygon
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from shapely import affinity
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@ -146,7 +151,7 @@ class MeshPluginMainDialog(mesh_plugin_dialog.MainDialog):
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if self.tearup_confirm_dialog.ShowModal() == wx.ID_YES:
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raise AbortError()
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self.generate_mesh_backend(zone, anchors, warn=warn)
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self.generate_mesh_backend(zone, anchors, warn=warn, settings=settings)
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except GeneratorError as e:
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return wx.MessageDialog(self, str(e), "Mesh Generation Error").ShowModal()
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@ -161,7 +166,7 @@ class MeshPluginMainDialog(mesh_plugin_dialog.MainDialog):
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for j in range(outline.PointCount()):
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point = outline.CPoint(j)
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outline_points.append((pcbnew.ToMM(point.x), pcbnew.ToMM(point.y)))
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yield polygon.LinearRing(outline_points)
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yield polygon.Polygon(outline_points)
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def generate_mesh_backend(self, zone, anchors, warn=lambda s: None, settings=GeneratorSettings()):
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anchor, = anchors
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@ -179,11 +184,10 @@ class MeshPluginMainDialog(mesh_plugin_dialog.MainDialog):
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raise GeneratorError('Mesh zone has too many outlines (has {}, should have one).'.format(len(zone_outlines)))
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zone_outline, *_rest = zone_outlines
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mesh_origin = zone_outline.centroid
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width_per_trace = settings.trace_width + settings.space_width
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grid_cell_width = width_per_trace * settings.num_traces
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zone_outline_rotated = affinity.rotate(zone_outline, -settings.mesh_angle, origin=mesh_origin)
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zone_outline_rotated = affinity.rotate(zone_outline, -settings.mesh_angle, origin=zone_outline.centroid)
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bbox = zone_outline_rotated.bounds
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grid_origin = (bbox[0] + settings.offset_x - grid_cell_width, bbox[1] + settings.offset_y - grid_cell_width)
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@ -195,29 +199,100 @@ class MeshPluginMainDialog(mesh_plugin_dialog.MainDialog):
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for y in range(grid_rows):
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row = []
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for x in range(grid_cols):
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cell = polygon.LinearRing([(0, 0), (0, 1), (1, 1), (1, 0)])
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cell = polygon.Polygon([(0, 0), (0, 1), (1, 1), (1, 0)])
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cell = affinity.scale(cell, grid_cell_width, grid_cell_width, origin=(0, 0))
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cell = affinity.translate(cell, mesh_origin.x + x*grid_cell_width, mesh_origin.y + y*grid_cell_width)
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cell = affinity.rotate(cell, settings.mesh_angle, origin=mesh_origin)
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cell = affinity.translate(cell, grid_origin[0] + x*grid_cell_width, grid_origin[1] + y*grid_cell_width)
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cell = affinity.rotate(cell, settings.mesh_angle, origin=zone_outline.centroid)
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row.append(cell)
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grid.append(row)
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break
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for row in grid:
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for cell in row:
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poly = pcbnew.DRAWSEGMENT()
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poly.SetLayer(self.board.GetLayerID('Eco2.User'))
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poly.SetShape(pcbnew.S_POLYGON)
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poly.SetWidth(0)
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self.board.Add(poly)
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s = poly.GetPolyShape()
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s.NewOutline()
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for x, y in zip(*cell.xy):
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s.Append(pcbnew.FromMM(x), pcbnew.FromMM(y))
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print('OUTLINE POINT', x, y)
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break
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exit_line = affinity.rotate(geometry.LineString([(0,0), (0,-100000)]), settings.anchor_exit, origin=(0, 0))
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exit_line = affinity.translate(exit_line, anchor_outlines[0].centroid.x, anchor_outlines[0].centroid.y)
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possible_exits = []
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for y, row in enumerate(grid):
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for x, cell in enumerate(row):
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if any(ol.overlaps(cell) for ol in anchor_outlines): # cell lies on outline
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if exit_line.crosses(cell): # cell lies on exit line
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possible_exits.append((cell, (x, y)))
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if len(possible_exits) == 0:
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raise GeneratorError('Cannot find an exit. This is a bug, please report.')
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exit_cell = possible_exits[0] # might overlap multiple if not orthogonal
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pcbnew.Refresh()
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num_valid = 0
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with DebugOutput('/mnt/c/Users/jaseg/shared/test.svg') as dbg:
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dbg.add(zone_outline, color='#00000020')
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for y, row in enumerate(grid):
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for x, cell in enumerate(row):
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if zone_outline.contains(cell):
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if cell == exit_cell[0]:
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color = '#ff00ff80'
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elif any(ol.overlaps(cell) for ol in anchor_outlines):
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color = '#ffff0080'
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elif any(ol.contains(cell) for ol in anchor_outlines):
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color = '#ff000080'
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else:
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num_valid += 1
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color = '#00ff0080'
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elif zone_outline.overlaps(cell):
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color = '#ffff0080'
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else:
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color = '#ff000080'
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dbg.add(cell, color=color)
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for foo in anchor_outlines:
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dbg.add(foo, color='#0000ff00', stroke_width=0.05, stroke_color='#000000ff')
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def is_valid(cell):
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if not zone_outline.contains(cell):
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return False
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if any(ol.overlaps(cell) for ol in anchor_outlines):
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return False
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if any(ol.contains(cell) for ol in anchor_outlines):
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return False
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return True
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def iter_neighbors(x, y):
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if x > 0:
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yield x-1, y
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if x < grid_cols:
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yield x+1, y
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if y > 0:
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yield x, y-1
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if y < grid_rows:
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yield x, y+1
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def random_iter(it):
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l = list(it)
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random.shuffle(l)
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yield from l
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not_visited = { (x, y) for x in range(grid_cols) for y in range(grid_rows) if is_valid(grid[y][x]) }
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num_to_visit = len(not_visited)
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with DebugOutput('/mnt/c/Users/jaseg/shared/test2.svg') as dbg:
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dbg.add(zone_outline, color='#00000020')
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x, y = exit_cell[1]
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visited = 0
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stack = []
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while not_visited:
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for n_x, n_y in random_iter(iter_neighbors(x, y)):
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if (n_x, n_y) in not_visited:
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dbg.add(grid[n_y][n_x], color=virihex(visited, max=num_to_visit))
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stack.append((x, y))
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not_visited.remove((n_x, n_y))
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visited += 1
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x, y = n_x, n_y
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break
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else:
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*stack, (x, y) = stack
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for foo in anchor_outlines:
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dbg.add(foo, color='#0000ff00', stroke_width=0.05, stroke_color='#000000ff')
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#pcbnew.Refresh()
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#self.tearup_mesh()
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# TODO generate
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@ -227,6 +302,73 @@ class MeshPluginMainDialog(mesh_plugin_dialog.MainDialog):
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def quit(self, evt):
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self.Destroy()
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def virihex(val, max=1.0, alpha=1.0):
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r, g, b, _a = matplotlib.cm.viridis(val/max)
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r, g, b, a = [ int(round(0xff*c)) for c in [r, g, b, alpha] ]
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return f'#{r:02x}{g:02x}{b:02x}{a:02x}'
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@contextmanager
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def DebugOutput(filename):
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with open(filename, 'w') as f:
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wrapper = DebugOutputWrapper(f)
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yield wrapper
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wrapper.save()
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class DebugOutputWrapper:
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def __init__(self, f):
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self.f = f
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self.objs = []
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def add(self, obj, color=None, stroke_width=0, stroke_color=None):
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self.objs.append((obj, (color, stroke_color, stroke_width)))
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def gen_svg(self, obj, fill_color=None, stroke_color=None, stroke_width=None):
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fill_color = fill_color or '#ff0000aa'
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stroke_color = stroke_color or '#000000ff'
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stroke_width = 0 if stroke_width is None else stroke_width
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exterior_coords = [ ["{},{}".format(*c) for c in obj.exterior.coords] ]
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interior_coords = [ ["{},{}".format(*c) for c in interior.coords] for interior in obj.interiors ]
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path = " ".join([
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"M {0} L {1} z".format(coords[0], " L ".join(coords[1:]))
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for coords in exterior_coords + interior_coords])
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return (f'<path fill-rule="evenodd" fill="{fill_color}" stroke="{stroke_color}" '
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f'stroke-width="{stroke_width}" opacity="0.6" d="{path}" />')
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def save(self, margin:'unit'=5, scale:'px/unit'=10):
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#specify margin in coordinate units
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margin = 5
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bboxes = [ list(obj.bounds) for obj, _style in self.objs ]
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min_x = min( bbox[0] for bbox in bboxes ) - margin
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min_y = min( bbox[1] for bbox in bboxes ) - margin
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max_x = max( bbox[2] for bbox in bboxes ) + margin
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max_y = max( bbox[3] for bbox in bboxes ) + margin
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width = max_x - min_x
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height = max_y - min_y
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props = {
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'version': '1.1',
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'baseProfile': 'full',
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'width': '{width:.0f}px'.format(width = width*scale),
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'height': '{height:.0f}px'.format(height = height*scale),
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'viewBox': '%.1f,%.1f,%.1f,%.1f' % (min_x, min_y, width, height),
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'xmlns': 'http://www.w3.org/2000/svg',
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'xmlns:ev': 'http://www.w3.org/2001/xml-events',
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'xmlns:xlink': 'http://www.w3.org/1999/xlink'
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}
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self.f.write(textwrap.dedent(r'''
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<?xml version="1.0" encoding="utf-8" ?>
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<svg {attrs:s}>
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{data}
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</svg>
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''').format(
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attrs = ' '.join(['{key:s}="{val:s}"'.format(key = key, val = props[key]) for key in props]),
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data = '\n'.join(self.gen_svg(obj, *style) for obj, style in self.objs)
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).strip())
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def show_dialog(board):
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dialog = MeshPluginMainDialog(board)
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dialog.ShowModal()
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