Hello,
i'm using GMSH for 2D mesh generation since a while (at beginners level - just
create geometry or import dxf via dxf2geo and then press mesh).
I'd like to use GMSH also to generate an evenly spaced pin pattern (node
position = pin position). I try to use this pattern as support for a plate to
have less contact area. The spacing between the pins needs to be very equal to
not have unflatness of the plate due to heavy sagg while vacuum clamping. The
problem is: the geometry can be complex (e.g. circle with off-center circles
inside).
Therefore I tried a simple test: A Circle inside of square. My iam is to fill
the box with a pin pattern (=nodes) with spacing of 0.5mm (+/-0.2mm => 0.48mm
till 0.52mm is okay). I need to force gmsh to do so.
//Circle
Point(1) = {0, 0, 0, 1};
Point(2) = {-2, 0, 0, 1};
Point(3) = {2, 0, 0, 1};
Point(4) = {0, -2, 0, 1};
Point(5) = {0, 2, 0, 1};
//Square
Point(6) = {7, 7, 0, 1};
Point(7) = {-7, 7, 0, 1};
Point(8) = {-7, -7, 0, 1};
Point(9) = {7, -7, 0, 1};
Line(1) = {9, 6};
Line(2) = {6, 7};
Line(3) = {7, 8};
Line(4) = {8, 9};
Circle(5) = {3, 1, 5};
Circle(6) = {5, 1, 2};
Circle(7) = {2, 1, 4};
Circle(8) = {4, 1, 3};
Line Loop(9) = {2, 3, 4, 1};
Line Loop(10) = {6, 7, 8, 5};
Plane Surface(11) = {9, 10};
But at this point in time (with only setting "Min/Max element size" to 0.48 and
0.52) it doesn't work.
What can I do to ? I very much appreciate any help.
Thank you in advance.
Best regards,
Alex
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