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Diffstat (limited to 'plugin/mesh_dialog.py')
-rw-r--r--plugin/mesh_dialog.py142
1 files changed, 121 insertions, 21 deletions
diff --git a/plugin/mesh_dialog.py b/plugin/mesh_dialog.py
index 97943a8..3b4e91a 100644
--- a/plugin/mesh_dialog.py
+++ b/plugin/mesh_dialog.py
@@ -1,14 +1,32 @@
from collections import defaultdict
+from dataclasses import dataclass
import wx
import pcbnew
import shapely
+from shapely.geometry import polygon
+from shapely import affinity
from . import mesh_plugin_dialog
-# Implementing MainDialog
+class GeneratorError(ValueError):
+ pass
+
+class AbortError(SystemError):
+ pass
+
+@dataclass
+class GeneratorSettings:
+ mesh_angle: float = 0.0 # deg
+ trace_width: float = 0.127 # mm
+ space_width: float = 0.127 # mm
+ anchor_exit: float = 0.0 # deg
+ num_traces: int = 2
+ offset_x: float = 0.0 # mm
+ offset_y: float = 0.0 # mm
+
class MeshPluginMainDialog(mesh_plugin_dialog.MainDialog):
def __init__(self, board):
mesh_plugin_dialog.MainDialog.__init__(self, None)
@@ -18,10 +36,6 @@ class MeshPluginMainDialog(mesh_plugin_dialog.MainDialog):
self.m_removeButton.Bind(wx.EVT_BUTTON, self.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.m_traceSpin.Bind(wx.EVT_SPIN_UP, lambda evt: self.spin(self.m_traceInput, 1.0))
- self.m_traceSpin.Bind(wx.EVT_SPIN_DOWN, lambda evt: self.spin(self.m_traceInput, -1.0))
- self.m_spaceSpin.Bind(wx.EVT_SPIN_UP, lambda evt: self.spin(self.m_spaceInput, 1.0))
- self.m_spaceSpin.Bind(wx.EVT_SPIN_DOWN, lambda evt: self.spin(self.m_spaceInput, -1.0))
self.tearup_confirm_dialog = wx.MessageDialog(self, "", style=wx.YES_NO | wx.NO_DEFAULT)
@@ -30,14 +44,6 @@ class MeshPluginMainDialog(mesh_plugin_dialog.MainDialog):
self.SetMinSize(self.GetSize())
- def spin(self, le_input, delta):
- try:
- current = float(le_input.Value)
- current += delta
- le_input.Value = '{:.03f}'.format(current)
- except ValueError:
- pass
-
def get_matching_nets(self):
prefix = self.m_net_prefix.Value
return { net for net in self.nets if net.startswith(prefix) }
@@ -59,16 +65,31 @@ class MeshPluginMainDialog(mesh_plugin_dialog.MainDialog):
self.tearup_confirm_dialog.SetYesNoLabels("Tear up {} nets".format(len(matching)), "Close")
if self.tearup_confirm_dialog.ShowModal() == wx.ID_YES:
- for track in self.board.GetTracks():
- if not (track.GetStatus() & pcbnew.TRACK_AR):
- continue
+ self.tearup_mesh()
+
+ def tearup_mesh(self):
+ for track in self.board.GetTracks():
+ if not (track.GetStatus() & pcbnew.TRACK_AR):
+ continue
- if not track.GetNet().GetNetname() in matching:
- continue
+ if not track.GetNet().GetNetname() in matching:
+ continue
- board.Remove(track)
+ board.Remove(track)
def generate_mesh(self, evt):
+ try:
+ settings = GeneratorSettings(
+ mesh_angle = float(self.m_angleSpin.Value),
+ trace_width = float(self.m_traceSpin.Value),
+ space_width = float(self.m_spaceSpin.Value),
+ anchor_exit = float(self.m_exitSpin.Value),
+ num_traces = int(self.m_traceCountSpin.Value),
+ offset_x = float(self.m_offsetXSpin.Value),
+ offset_y = float(self.m_offsetYSpin.Value))
+ except ValueError as e:
+ return wx.MessageDialog(self, "Invalid input value: {}.".format(e), "Invalid input").ShowModal()
+
nets = self.get_matching_nets()
pads = defaultdict(lambda: [])
@@ -115,11 +136,90 @@ class MeshPluginMainDialog(mesh_plugin_dialog.MainDialog):
if len(anchors) > 1:
return wx.MessageDialog(self, "Error: Currently, only a single anchor is supported.").ShowModal()
- self.generate_mesh(zone, anchors)
+ 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(zone, anchors, warn=warn)
+
+ 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)
+
+ outline_points = []
+ for j in range(outline.PointCount()):
+ point = outline.CPoint(j)
+ outline_points.append((pcbnew.ToMM(point.x), pcbnew.ToMM(point.y)))
+ yield polygon.LinearRing(outline_points)
- def generate_mesh(self, zone, anchors):
+ def generate_mesh_backend(self, zone, anchors, warn=lambda s: None, settings=GeneratorSettings()):
anchor, = anchors
+ anchor_outlines = list(self.poly_set_to_shapely(anchor.GetBoundingPoly()))
+ 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.')
+
+ zone_outlines = list(self.poly_set_to_shapely(zone.GetPolyShape()))
+ if len(zone_outlines) == 0:
+ raise GeneratorError('Could not find any outlines for mesh zone.')
+ if len(zone_outlines) > 1:
+ raise GeneratorError('Mesh zone has too many outlines (has {}, should have one).'.format(len(zone_outlines)))
+ zone_outline, *_rest = zone_outlines
+
+ mesh_origin = zone_outline.centroid
+ width_per_trace = settings.trace_width + settings.space_width
+ grid_cell_width = width_per_trace * settings.num_traces
+
+ zone_outline_rotated = affinity.rotate(zone_outline, -settings.mesh_angle, origin=mesh_origin)
+ bbox = zone_outline_rotated.bounds
+
+ grid_origin = (bbox[0] + settings.offset_x - grid_cell_width, bbox[1] + settings.offset_y - grid_cell_width)
+ grid_rows = int((bbox[3] - grid_origin[1]) / grid_cell_width + 2)
+ grid_cols = int((bbox[2] - grid_origin[0]) / grid_cell_width + 2)
+ print(f'generating grid of size {grid_rows} * {grid_cols}')
+
+ grid = []
+ for y in range(grid_rows):
+ row = []
+ for x in range(grid_cols):
+ cell = polygon.LinearRing([(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, mesh_origin.x + x*grid_cell_width, mesh_origin.y + y*grid_cell_width)
+ cell = affinity.rotate(cell, settings.mesh_angle, origin=mesh_origin)
+ row.append(cell)
+ grid.append(row)
+ break
+
+ for row in grid:
+ for cell in row:
+ poly = pcbnew.DRAWSEGMENT()
+ poly.SetLayer(self.board.GetLayerID('Eco2.User'))
+ poly.SetShape(pcbnew.S_POLYGON)
+ poly.SetWidth(0)
+ self.board.Add(poly)
+ s = poly.GetPolyShape()
+ s.NewOutline()
+ for x, y in zip(*cell.xy):
+ s.Append(pcbnew.FromMM(x), pcbnew.FromMM(y))
+ print('OUTLINE POINT', x, y)
+ break
+
+ pcbnew.Refresh()
+ #self.tearup_mesh()
+ # TODO generate
def update_net_label(self, evt):
self.m_netLabel.SetLabel('{} matching nets'.format(len(self.get_matching_nets())))