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51 lines
1023 B
Python
51 lines
1023 B
Python
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from ngsolve import *
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from random import random, seed
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ngsglobals.msg_level = 0
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import netgen
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from pyngcore import *
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from netgen.geom2d import *
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seed(4)
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def GenerateMesh():
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g = CSG2d()
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g1 = CSG2d()
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outer = Rectangle(0, 1, 0, 1,"outer","outer")
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inner = Solid2d()
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for i in range(30):
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cx = random()
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cy = random()
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r = 0.03+0.05*random()
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print("Add Circle", i, cx, cy, r, flush = True)
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circle = Circle(cx, cy, r, "circle"+str(i), "circle"+str(i))
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g1.Add(circle)
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inner += circle
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outer -= circle
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g.Add(inner)
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g.Add(outer)
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geo = g.GenerateSplineGeometry()
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Draw(geo)
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# draw this geometry for checking ff the final mesh/geometry is correct
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# g1.Add(outer)
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# geo1 = g1.GenerateSplineGeometry()
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# Draw(geo1)
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print('generate mesh')
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m = geo.GenerateMesh(maxh=0.1)
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mesh = Mesh(m)
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mesh.Curve(3)
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Draw(mesh)
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return mesh
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from ngsolve import Draw
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with PajeTrace():
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mesh = GenerateMesh()
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