Hello.I modeled a circular surface containing a circle. Now after the Meshing I want to get the coordinates only of the nodes belonging to the inner circle. I thought I could put the lines and points of the inner circle into a physical group and use this to identify the elements (line elements) that belong to the inner circle. But unfortunately in the MSH File all the tags for the physical group are "0". Could you please tell me how to save the physical group in the MSH File?
With kind regards Niels
Point(1)={19.141809,-6.48626,0};
Point(2)={19.963316,-2.52452,0};
Point(3)={19.963131,1.521188,0};
Point(4)={19.141289,5.482821,0};
Point(5)={17.532324,9.194533,0};
Point(6)={15.199965,12.500653,0};
Point(7)={12.244406,15.260653,0};
Point(8)={8.779012,17.347603,0};
Point(9)={4.965203,18.655188,0};
Point(10)={1.009679,19.0,0};
Point(11)={-3.002522,19.000002,0};
Point(12)={-6.922881,18.11948,0};
Point(13)={-10.578676,16.402092,0};
Point(14)={-13.807797,13.962519,0};
Point(15)={-16.465469,10.91104,0};
Point(16)={-18.446899,7.381423,0};
Point(17)={-19.668903,3.523356,0};
Point(18)={-20.081127,-0.502487,0};
Point(19)={-19.668209,-4.528811,0};
Point(20)={-18.446577,-8.387027,0};
Point(21)={-16.464912,-11.916145,0};
Point(22)={-13.807228,-14.967159,0};
Point(23)={-10.577921,-17.406193,0};
Point(24)={-6.922073,-19.122311,0};
Point(25)={-3.002418,-19.999998,0};
Point(26)={1.009408,-19.999998,0};
Point(27)={4.965491,-19.657749,0};
Point(28)={8.779473,-18.35091,0};
Point(29)={12.244962,-16.264236,0};
Point(30)={15.200665,-13.504352,0};
Point(31)={17.533068,-10.198122,0};
Line(1)={1,2};
Line(2)={2,3};
Line(3)={3,4};
Line(4)={4,5};
Line(5)={5,6};
Line(6)={6,7};
Line(7)={7,8};
Line(8)={8,9};
Line(9)={9,10};
Line(10)={10,11};
Line(11)={11,12};
Line(12)={12,13};
Line(13)={13,14};
Line(14)={14,15};
Line(15)={15,16};
Line(16)={16,17};
Line(17)={17,18};
Line(18)={18,19};
Line(19)={19,20};
Line(20)={20,21};
Line(21)={21,22};
Line(22)={22,23};
Line(23)={23,24};
Line(24)={24,25};
Line(25)={25,26};
Line(26)={26,27};
Line(27)={27,28};
Line(28)={28,29};
Line(29)={29,30};
Line(30)={30,31};
Line(31)={31,1};
Line Loop(1) =
{1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31};
Plane Surface(1) = {1};
Point(32)={-9.30460548401,-4.30047559738,0};
Point(33)={-7.12721157074,-7.5067987442,0};
Point(34)={-3.86559510231,-9.61959266663,0};
Point(35)={-0.0112624764442,-10.3544445038,0};
Point(36)={3.84822654724,-9.6135187149,0};
Point(37)={7.10956573486,-7.5008058548,0};
Point(38)={9.2882900238,-4.29826068878,0};
Point(39)={10.0518264771,-0.501874804497,0};
Point(40)={9.28789901733,3.2943983078,0};
Point(41)={7.10895776749,6.49795722961,0};
Point(42)={3.84761667252,8.61085128784,0};
Point(43)={-0.0119384527206,9.35166835785,0};
Point(44)={-3.86626911163,8.61604690552,0};
Point(45)={-7.12702798843,6.50276327133,0};
Point(46)={-9.30463695526,3.29630827904,0};
Point(47)={-10.0689888,-0.501727163792,0};
Physical Point (1) = {32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45,
46, 47};
Line(32)={32,33};
Line(33)={33,34};
Line(34)={34,35};
Line(35)={35,36};
Line(36)={36,37};
Line(37)={37,38};
Line(38)={38,39};
Line(39)={39,40};
Line(40)={40,41};
Line(41)={41,42};
Line(42)={42,43};
Line(43)={43,44};
Line(44)={44,45};
Line(45)={45,46};
Line(46)={46,47};
Line(47)={47,32};
Line{32} In Surface{1};
Line{33} In Surface{1};
Line{34} In Surface{1};
Line{35} In Surface{1};
Line{36} In Surface{1};
Line{37} In Surface{1};
Line{38} In Surface{1};
Line{39} In Surface{1};
Line{40} In Surface{1};
Line{41} In Surface{1};
Line{42} In Surface{1};
Line{43} In Surface{1};
Line{44} In Surface{1};
Line{45} In Surface{1};
Line{46} In Surface{1};
Line{47} In Surface{1};
Physical Line (1) = {32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45,
46, 47};
Mesh.SaveAll = 1;
rand.msh
Description: Mesh model
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