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authorjaseg <git@jaseg.de>2023-10-06 18:49:08 +0200
committerjaseg <git@jaseg.de>2023-10-06 18:49:08 +0200
commita2d1429036884e4332169356f8c9d1701306a6e3 (patch)
treecfc2af3e3cc6a10208d4ca7415248b6ab51a2e05 /twisted_coil_gen_twolayer.py
parentf793f12edbfc165059b6161f71cbb261a3a2f5cf (diff)
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Try to fix mesh export
Diffstat (limited to 'twisted_coil_gen_twolayer.py')
-rw-r--r--twisted_coil_gen_twolayer.py83
1 files changed, 66 insertions, 17 deletions
diff --git a/twisted_coil_gen_twolayer.py b/twisted_coil_gen_twolayer.py
index 24e23b3..101042c 100644
--- a/twisted_coil_gen_twolayer.py
+++ b/twisted_coil_gen_twolayer.py
@@ -7,6 +7,7 @@ import os
from math import *
from pathlib import Path
from itertools import cycle
+from contextlib import contextmanager
from scipy.constants import mu_0
import numpy as np
@@ -223,8 +224,35 @@ def traces_to_gmsh_mag(traces, mesh_out, bbox, model_name='gerbonara_board', log
#print('bbox', [occ.getBoundingBox(2, tag) for tag in last_disk[1]])
first_geom = traces[0][0]
- interface_tag_top = occ.addDisk(first_geom.start.x, first_geom.start.y, 0, first_geom.width/2, first_geom.width/2)
- interface_tag_bottom = occ.addDisk(first_geom.start.x, first_geom.start.y, -board_thickness, first_geom.width/2, first_geom.width/2)
+ #contact_tag_top = occ.addCylinder(first_geom.start.x, first_geom.start.y, copper_thickness, 0, 0, copper_thickness, first_geom.width/2)
+ #contact_tag_bottom = occ.addCylinder(first_geom.start.x, first_geom.start.y, -board_thickness-copper_thickness, 0, 0, -copper_thickness, first_geom.width/2)
+
+ @contextmanager
+ def model_delta():
+ occ.synchronize()
+ entities = {i: set() for i in range(4)}
+ for dim, tag in gmsh.model.getEntities():
+ entities[dim].add(tag)
+
+ yield
+
+ occ.synchronize()
+ new_entities = {i: set() for i in range(4)}
+ for dim, tag in gmsh.model.getEntities():
+ new_entities[dim].add(tag)
+
+ for i, dimtype in enumerate(['points', 'lines', 'surfaces', 'volumes']):
+ delta = entities[i] - new_entities[i]
+ print(f'Removed {dimtype} [{len(delta)}]: {", ".join(map(str, delta))[:180]}')
+
+ delta = new_entities[i] - entities[i]
+ print(f'New {dimtype} [{len(delta)}]: {", ".join(map(str, delta))[:180]}')
+
+ with model_delta():
+ print('Fragmenting disks')
+ interface_tag_top = occ.addDisk(first_geom.start.x, first_geom.start.y, 0, first_geom.width/2, first_geom.width/2)
+ interface_tag_bottom = occ.addDisk(first_geom.start.x, first_geom.start.y, -board_thickness, first_geom.width/2, first_geom.width/2)
+ occ.fragment([(3, toplevel_tag)], [(2, interface_tag_top), (2, interface_tag_bottom)], removeObject=True, removeTool=True)
#occ.synchronize()
#_, toplevel_adjacent = gmsh.model.getAdjacencies(3, toplevel_tag)
@@ -247,16 +275,32 @@ def traces_to_gmsh_mag(traces, mesh_out, bbox, model_name='gerbonara_board', log
ab_h = board_thickness + 2*air_box_margin_v
airbox = occ.addBox(x1, y1, z0, w, d, ab_h)
- print('Fragmenting trace')
- print(occ.fragment([(3, toplevel_tag)], [(2, interface_tag_top), (2, interface_tag_bottom)], removeObject=True, removeTool=False))
+ occ.synchronize()
+
+ #trace_surface = gmsh.model.getBoundary([(3, toplevel_tag)], oriented=False)
+ #print('Fragmenting trace surface')
+ #with model_delta():
+ # print(occ.fragment(trace_surface, [(2, interface_tag_top), (2, interface_tag_bottom)], removeObject=True, removeTool=False))
- print('Fragmenting substrate')
- print(occ.cut([(3, substrate)], [(3, toplevel_tag)], removeObject=True, removeTool=False))
- print(occ.fragment([(3, substrate)], [(3, toplevel_tag), (2, interface_tag_top), (2, interface_tag_bottom)], removeObject=True, removeTool=False))
+ #print('Fragmenting trace')
+ #with model_delta():
+ # print(occ.fragment([(3, toplevel_tag)], [(3, contact_tag_top), (3, contact_tag_bottom)], removeObject=True, removeTool=False))
- print(f'Fragmenting airbox ({airbox}) with {toplevel_tag=} {substrate=} {interface_tag_top=} {interface_tag_bottom=}')
- print(occ.cut([(3, airbox)], [(3, toplevel_tag)], removeObject=True, removeTool=False))
- print(occ.fragment([(3, airbox)], [(3, toplevel_tag), (3, substrate), (2, interface_tag_top), (2, interface_tag_bottom)], removeObject=True, removeTool=False))
+ print('cut')
+ with model_delta():
+ print(occ.cut([(3, substrate)], [(3, toplevel_tag)], removeObject=True, removeTool=False))
+
+ #print('Fragmenting substrate')
+ #with model_delta():
+ # print(occ.fragment([(3, substrate)], [(3, toplevel_tag), (3, contact_tag_top), (3, contact_tag_bottom)], removeObject=True, removeTool=False))
+
+ print('cut')
+ with model_delta():
+ print(occ.cut([(3, airbox)], [(3, toplevel_tag), (3, substrate)], removeObject=True, removeTool=False))
+
+ print(f'Fragmenting airbox ({airbox}) with {toplevel_tag=} {substrate=}')
+ with model_delta():
+ print(occ.fragment([(3, airbox)], [(3, toplevel_tag), (3, substrate)], removeObject=True, removeTool=False))
#occ.fragment([(3, substrate)], [(2, interface_tag_top), (2, interface_tag_bottom)])
#occ.fragment([(3, airbox)], [(3, substrate), (3, toplevel_tag)])
@@ -264,17 +308,21 @@ def traces_to_gmsh_mag(traces, mesh_out, bbox, model_name='gerbonara_board', log
print('Synchronizing')
occ.synchronize()
+ pcx, pcy = first_geom.start.x, first_geom.start.y
+ pcr = first_geom.width/2
+ (_dim, plane_top), = gmsh.model.getEntitiesInBoundingBox(pcx-pcr-eps, pcy-pcr-eps, -eps, pcx+pcr+eps, pcy+pcr+eps, eps, 2)
+ (_dim, plane_bottom), = gmsh.model.getEntitiesInBoundingBox(pcx-pcr-eps, pcy-pcr-eps, -board_thickness-eps, pcx+pcr+eps, pcy+pcr+eps, -board_thickness+eps, 2)
+
substrate_physical = gmsh.model.add_physical_group(3, [substrate], name='substrate')
airbox_physical = gmsh.model.add_physical_group(3, [airbox], name='airbox')
trace_physical = gmsh.model.add_physical_group(3, [toplevel_tag], name='trace')
- interface_top_physical = gmsh.model.add_physical_group(2, [interface_tag_top], name='interface_top')
- interface_bottom_physical = gmsh.model.add_physical_group(2, [interface_tag_bottom], name='interface_bottom')
- print('first disk', first_disk)
- print('bbox', occ.getBoundingBox(2, interface_tag_top))
- print('last disk', last_disk)
- print('bbox', occ.getBoundingBox(2, interface_tag_bottom))
-
+ #interface_tags_top = gmsh.model.getBoundary([(3, contact_tag_top)], oriented=False)
+ #interface_tags_bottom = gmsh.model.getBoundary([(3, contact_tag_bottom)], oriented=False)
+
+ interface_top_physical = gmsh.model.add_physical_group(2, [plane_top], name='interface_top')
+ interface_bottom_physical = gmsh.model.add_physical_group(2, [plane_bottom], name='interface_bottom')
+
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, x2-eps, y2-eps, z0+ab_h-eps, dim=2)}
airbox_physical_surface = gmsh.model.add_physical_group(2, list(airbox_adjacent - in_bbox), name='airbox_surface')
@@ -291,6 +339,7 @@ def traces_to_gmsh_mag(traces, mesh_out, bbox, model_name='gerbonara_board', log
gmsh.option.setNumber('Mesh.MeshSizeMin', 0.08)
gmsh.option.setNumber('General.NumThreads', multiprocessing.cpu_count())
+ gmsh.write('/tmp/test.msh')
print('Meshing')
gmsh.model.mesh.generate(dim=3)
print('Writing to', str(mesh_out))