public static int permutation(this elementMirror em, int i)
{
switch (em)
{
case elementMirror.quad8:
{
int[] p = { 1, 8, 7, 6, 5, 4, 3, 2 };
return(p[i] - 1);
}
case elementMirror.hex20:
{
int[] p = { 1, 8, 7, 6, 5, 4, 3, 2, 9, 12, 11, 10,
13, 20, 19, 18, 17, 16, 15, 14 };
return(p[i] - 1);
}
default:
return(0);
}
}
private void doMirror()
{
if (m.nDim == 2 && axis == 'z')
{
return;
}
int iax = getIntAxis(axis);
// Mirror nodal coordinates
for (int i = 0; i < m.nNod; i++)
{
m.setNodeCoord(i, iax, -m.getNodeCoord(i, iax) + 2 * value);
}
// Change order of element connectivities
for (int e = 0; e < m.nEl; e++)
{
elementMirror em = elementMirror.Null;
try
{
//em = elementMirror.valueOf(m.elems[e].name);
em = (elementMirror)System.Enum.Parse(typeof(elementMirror), m.elems[e].name);
}
catch (Exception el)
{
UTIL.errorMsg("Mirror: element not supported " + m.elems[e].name);
}
int nind = m.elems[e].ind.Length;
int[] ind = new int[nind];
for (int i = 0; i < nind; i++)
{
ind[em.permutation(i)] = m.elems[e].ind[i];
}
m.elems[e].setElemConnectivities(ind);
}
}