grain3d/conversionCode.dat at master · materialsnexus/grain3d · GitHub

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//////////////////////////////////////////////////////////
// We need ten lines of zero at the beginning
for(temp:=0; temp<10; temp+=1) printf "0\n" >> "initialGrains.dat";

//////////////////////////////////////////////////////////
// Refine even the triangles
define face attribute tri integer;
foreach face ff do set ff.tri 0;
foreach face ff do faces[ff.original].tri += 1;
refine faces where tri==1;

//////////////////////////////////////////////////////////
// classifies the nodes
define vertex attribute class integer;
foreach vertex vv do set vv.class 0;
foreach edge ee where valence==3 do {
  ee.vertex[1].class+=1;
  ee.vertex[2].class+=1;
}

//////////////////////////////////////////////////////////
// prints out the node info
printf "%.0f\n", vertex_count >> "initialGrains.dat";
foreach vertex vv do printf "%.20f\t%.20f\t%.20f\n", vv.x, vv.y, vv.z >> "initialGrains.dat";
printf "\n" >> "initialGrains.dat";

//////////////////////////////////////////////////////////
// arranges the information, body by body
printf "%.0f\n", body_count >> "initialGrains.dat";
foreach body bb do
{
  print bb.id;
  printf "%.0f %.0f\n", bb.id, bb.valence >> "initialGrains.dat";
  define vvalues integer[bb.valence][3];
  asd:=1;

  foreach bb.face ff do
  {
    if ff.vertex[2].class==0 then {
      vvalues[asd][1] := ff.vertex[1].id;
      vvalues[asd][2] := ff.vertex[2].id;
      vvalues[asd][3] := ff.vertex[3].id;
      asd+=1;
    }
    else if ff.vertex[3].class==0 then {
      vvalues[asd][1] := ff.vertex[2].id;
      vvalues[asd][2] := ff.vertex[3].id;
      vvalues[asd][3] := ff.vertex[1].id;
      asd+=1;
    }
    else {
      vvalues[asd][1] := ff.vertex[3].id;
      vvalues[asd][2] := ff.vertex[1].id;
      vvalues[asd][3] := ff.vertex[2].id;
      asd+=1;
    }
  };

  //////////////////////////////////////////////////////////
  // arranges the triplets in order
  for(sort:=1; sort<bb.valence-1; sort+=1) {
    for(sort2:=sort+1; sort2<=bb.valence; sort2+=1){
      if(vvalues[sort][2]=vvalues[sort2][2] and vvalues[sort][3]=vvalues[sort2][1]) then {
        temp1:=vvalues[sort+1][1];
        temp2:=vvalues[sort+1][2];
        temp3:=vvalues[sort+1][3];
        vvalues[sort+1][1] := vvalues[sort2][1];
        vvalues[sort+1][2] := vvalues[sort2][2];
        vvalues[sort+1][3] := vvalues[sort2][3];
        vvalues[sort2][1] := temp1;
        vvalues[sort2][2] := temp2;
        vvalues[sort2][3] := temp3;
      }
    };
  };

  asd:=1;
  foreach bb.face ff do {
    printf "%.0f\t%.0f\t%.0f\n", vvalues[asd][1], vvalues[asd][2], vvalues[asd][3] >> "initialGrains.dat";
    asd+=1;
  };

  printf "\n" >> "initialGrains.dat";
}