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-rw-r--r--twisted_coil_gen_twolayer.py16
1 files changed, 11 insertions, 5 deletions
diff --git a/twisted_coil_gen_twolayer.py b/twisted_coil_gen_twolayer.py
index 1bf2bb1..77fea7a 100644
--- a/twisted_coil_gen_twolayer.py
+++ b/twisted_coil_gen_twolayer.py
@@ -2,6 +2,7 @@
import subprocess
import sys
+import multiprocessing
import os
from math import *
from pathlib import Path
@@ -48,7 +49,7 @@ def angle_between_vectors(va, vb):
return angle
-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):
+def traces_to_gmsh(traces, mesh_out, bbox, model_name='gerbonara_board', log=True, copper_thickness=0.035, board_thickness=0.8, air_box_margin=5.0):
import gmsh
occ = gmsh.model.occ
eps = 1e-6
@@ -121,14 +122,18 @@ def traces_to_gmsh(traces, mesh_out, bbox, model_name='gerbonara_board', log=Tru
for i, tag in trace_tags.items()]
airbox_adjacent = set(gmsh.model.getAdjacencies(3, airbox)[1])
- 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)}
+ 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=3)}
airbox_physical_surface = gmsh.model.add_physical_group(2, list(airbox_adjacent - in_bbox), name='airbox_surface')
+
+ points_airbox_adjacent = set(gmsh.model.getAdjacencies(0, airbox)[1])
+ points_inside = {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=0)}
+ gmsh.model.mesh.setSize([(0, tag) for tag in points_airbox_adjacent - points_inside], 10e-3)
gmsh.option.setNumber('Mesh.MeshSizeFromCurvature', 90)
gmsh.option.setNumber('Mesh.Smoothing', 10)
gmsh.option.setNumber('Mesh.Algorithm3D', 10)
- gmsh.option.setNumber('Mesh.MeshSizeMax', 0.2e-3)
- gmsh.option.setNumber('General.NumThreads', 12)
+ gmsh.option.setNumber('Mesh.MeshSizeMax', 1)
+ gmsh.option.setNumber('General.NumThreads', multiprocessing.cpu_count())
print('Meshing')
gmsh.model.mesh.generate(dim=3)
@@ -570,7 +575,8 @@ def generate(outfile, turns, outer_diameter, inner_diameter, via_diameter, via_d
traces[0] = traces[0][1:]
r = outer_diameter/2 + 20
- traces_to_gmsh(traces, mesh_out, ((-r, -r), (r, r)))
+ if mesh_out:
+ traces_to_gmsh(traces, mesh_out, ((-r, -r), (r, r)))
# for trace in traces:
# print(f'Trace {i}', file=sys.stderr)