213 lines
10 KiB
C#
213 lines
10 KiB
C#
|
using System;
|
|||
|
|
using System.Collections.Generic;
|
|||
|
|
using System.Linq;
|
|||
|
|
using System.Text;
|
|||
|
|
using System.Threading.Tasks;
|
|||
|
|
using CaeGlobals;
|
|||
|
|
|
|||
|
|
namespace CaeMesh
|
|||
|
|
{
|
|||
|
|
[Serializable]
|
|||
|
|
public class LinearHexaElement : FeElement3D
|
|||
|
|
{
|
|||
|
|
// Variables
|
|||
|
|
private static int vtkCellTypeInt = (int)vtkCellType.VTK_HEXAHEDRON;
|
|||
|
|
private static double b = 0.25;
|
|||
|
|
|
|||
|
|
|
|||
|
|
// Properties
|
|||
|
|
|
|||
|
|
|
|||
|
|
// Constructors
|
|||
|
|
public LinearHexaElement(int id, int[] nodeIds)
|
|||
|
|
: base(id, nodeIds)
|
|||
|
|
{
|
|||
|
|
}
|
|||
|
|
public LinearHexaElement(int id, int partId, int[] nodeIds)
|
|||
|
|
: base(id, partId, nodeIds)
|
|||
|
|
{
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
// Methods
|
|||
|
|
public override int[] GetVtkNodeIds()
|
|||
|
|
{
|
|||
|
|
// return a copy -> ToArray
|
|||
|
|
return NodeIds.ToArray();
|
|||
|
|
}
|
|||
|
|
public override int[] GetGmshNodeIds()
|
|||
|
|
{
|
|||
|
|
// return a copy -> ToArray
|
|||
|
|
return NodeIds.ToArray();
|
|||
|
|
}
|
|||
|
|
public override int GetVtkCellType()
|
|||
|
|
{
|
|||
|
|
return vtkCellTypeInt;
|
|||
|
|
}
|
|||
|
|
public override FeFaceName GetFaceNameFromSortedNodeIds(int[] nodeIds)
|
|||
|
|
{
|
|||
|
|
// The node ids are sorted
|
|||
|
|
// S1 = 1-2-3-4 . 0-1-2-3 . 0-1-2-3
|
|||
|
|
// S2 = 5-8-7-6 . 4-7-6-5 . 4-5-6-7
|
|||
|
|
// S3 = 1-5-6-2 . 0-4-5-1 . 0-1-4-5
|
|||
|
|
// S4 = 2-6-7-3 . 1-5-6-2 . 1-2-5-6
|
|||
|
|
// S5 = 3-7-8-4 . 2-6-7-3 . 2-3-6-7
|
|||
|
|
// S6 = 4-8-5-1 . 3-7-4-0 . 0-3-4-7
|
|||
|
|
|
|||
|
|
if (nodeIds[2] == 2) return FeFaceName.S1;
|
|||
|
|
else if (nodeIds[0] == 4) return FeFaceName.S2;
|
|||
|
|
else if (nodeIds[1] == 1) return FeFaceName.S3;
|
|||
|
|
else if (nodeIds[0] == 1) return FeFaceName.S4;
|
|||
|
|
else if (nodeIds[0] == 2) return FeFaceName.S5;
|
|||
|
|
else if (nodeIds[0] == 0) return FeFaceName.S6;
|
|||
|
|
else throw new NotSupportedException();
|
|||
|
|
}
|
|||
|
|
public override int[] GetNodeIdsFromFaceName(FeFaceName faceName)
|
|||
|
|
{
|
|||
|
|
// S1 = 1-2-3-4 . 0-1-2-3
|
|||
|
|
// S2 = 5-8-7-6 . 4-7-6-5
|
|||
|
|
// S3 = 1-5-6-2 . 0-4-5-1
|
|||
|
|
// S4 = 2-6-7-3 . 1-5-6-2
|
|||
|
|
// S5 = 3-7-8-4 . 2-6-7-3
|
|||
|
|
// S6 = 4-8-5-1 . 3-7-4-0
|
|||
|
|
switch (faceName)
|
|||
|
|
{
|
|||
|
|
case FeFaceName.S1:
|
|||
|
|
return new int[] { NodeIds[0], NodeIds[1], NodeIds[2], NodeIds[3] };
|
|||
|
|
case FeFaceName.S2:
|
|||
|
|
return new int[] { NodeIds[4], NodeIds[7], NodeIds[6], NodeIds[5] };
|
|||
|
|
case FeFaceName.S3:
|
|||
|
|
return new int[] { NodeIds[0], NodeIds[4], NodeIds[5], NodeIds[1] };
|
|||
|
|
case FeFaceName.S4:
|
|||
|
|
return new int[] { NodeIds[1], NodeIds[5], NodeIds[6], NodeIds[2] };
|
|||
|
|
case FeFaceName.S5:
|
|||
|
|
return new int[] { NodeIds[2], NodeIds[6], NodeIds[7], NodeIds[3] };
|
|||
|
|
case FeFaceName.S6:
|
|||
|
|
return new int[] { NodeIds[3], NodeIds[7], NodeIds[4], NodeIds[0] };
|
|||
|
|
default:
|
|||
|
|
throw new NotSupportedException();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
public override int[] GetVtkCellFromFaceName(FeFaceName faceName)
|
|||
|
|
{
|
|||
|
|
// Invert the surface normal to point outwards
|
|||
|
|
// S1 = 1-2-3-4 . 0-1-2-3 . 0-3-2-1
|
|||
|
|
// S2 = 5-8-7-6 . 4-7-6-5 . 4-5-6-7
|
|||
|
|
// S3 = 1-5-6-2 . 0-4-5-1 . 0-1-5-4
|
|||
|
|
// S4 = 2-6-7-3 . 1-5-6-2 . 1-2-6-5
|
|||
|
|
// S5 = 3-7-8-4 . 2-6-7-3 . 2-3-7-6
|
|||
|
|
// S6 = 4-8-5-1 . 3-7-4-0 . 3-0-4-7
|
|||
|
|
switch (faceName)
|
|||
|
|
{
|
|||
|
|
case FeFaceName.S1:
|
|||
|
|
return new int[] { NodeIds[0], NodeIds[3], NodeIds[2], NodeIds[1] };
|
|||
|
|
case FeFaceName.S2:
|
|||
|
|
return new int[] { NodeIds[4], NodeIds[5], NodeIds[6], NodeIds[7] };
|
|||
|
|
case FeFaceName.S3:
|
|||
|
|
return new int[] { NodeIds[0], NodeIds[1], NodeIds[5], NodeIds[4] };
|
|||
|
|
case FeFaceName.S4:
|
|||
|
|
return new int[] { NodeIds[1], NodeIds[2], NodeIds[6], NodeIds[5] };
|
|||
|
|
case FeFaceName.S5:
|
|||
|
|
return new int[] { NodeIds[2], NodeIds[3], NodeIds[7], NodeIds[6] };
|
|||
|
|
case FeFaceName.S6:
|
|||
|
|
return new int[] { NodeIds[3], NodeIds[0], NodeIds[4], NodeIds[7] };
|
|||
|
|
default:
|
|||
|
|
throw new NotSupportedException();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
public override int GetVtkCellIdFromCell(int[] cell)
|
|||
|
|
{
|
|||
|
|
if (cell[0] == NodeIds[0] && cell[1] == NodeIds[3] && cell[2] == NodeIds[2] && cell[3] == NodeIds[1]) return 0;
|
|||
|
|
else if (cell[0] == NodeIds[4] && cell[1] == NodeIds[5] && cell[2] == NodeIds[6] && cell[3] == NodeIds[7]) return 1;
|
|||
|
|
else if (cell[0] == NodeIds[0] && cell[1] == NodeIds[1] && cell[2] == NodeIds[5] && cell[3] == NodeIds[4]) return 2;
|
|||
|
|
else if (cell[0] == NodeIds[1] && cell[1] == NodeIds[2] && cell[2] == NodeIds[6] && cell[3] == NodeIds[5]) return 3;
|
|||
|
|
else if (cell[0] == NodeIds[2] && cell[1] == NodeIds[3] && cell[2] == NodeIds[7] && cell[3] == NodeIds[6]) return 4;
|
|||
|
|
else if (cell[0] == NodeIds[3] && cell[1] == NodeIds[0] && cell[2] == NodeIds[4] && cell[3] == NodeIds[7]) return 5;
|
|||
|
|
return -1;
|
|||
|
|
}
|
|||
|
|
public override int[][] GetAllVtkCells()
|
|||
|
|
{
|
|||
|
|
// use Method: GetVtkCellFromFaceName(FeFaceName faceName)
|
|||
|
|
int[][] cells = new int[6][];
|
|||
|
|
|
|||
|
|
cells[0] = new int[] { NodeIds[0], NodeIds[3], NodeIds[2], NodeIds[1] };
|
|||
|
|
cells[1] = new int[] { NodeIds[4], NodeIds[5], NodeIds[6], NodeIds[7] };
|
|||
|
|
cells[2] = new int[] { NodeIds[0], NodeIds[1], NodeIds[5], NodeIds[4] };
|
|||
|
|
cells[3] = new int[] { NodeIds[1], NodeIds[2], NodeIds[6], NodeIds[5] };
|
|||
|
|
cells[4] = new int[] { NodeIds[2], NodeIds[3], NodeIds[7], NodeIds[6] };
|
|||
|
|
cells[5] = new int[] { NodeIds[3], NodeIds[0], NodeIds[4], NodeIds[7] };
|
|||
|
|
|
|||
|
|
return cells;
|
|||
|
|
}
|
|||
|
|
public override Dictionary<FeFaceName, double> GetFaceNamesAndAreasFromNodeSet(HashSet<int> nodeSet,
|
|||
|
|
Dictionary<int, FeNode> nodes,
|
|||
|
|
bool edgeFaces)
|
|||
|
|
{
|
|||
|
|
int significantNodes = 8;
|
|||
|
|
bool[] faceNodeIds = new bool[significantNodes];
|
|||
|
|
//
|
|||
|
|
int count = 0;
|
|||
|
|
for (int i = 0; i < significantNodes; i++)
|
|||
|
|
{
|
|||
|
|
if (nodeSet.Contains(NodeIds[i]))
|
|||
|
|
{
|
|||
|
|
faceNodeIds[i] = true;
|
|||
|
|
count++;
|
|||
|
|
}
|
|||
|
|
// If five or more nodes were missed: break
|
|||
|
|
if (i + 1 - count >= 5) break;
|
|||
|
|
}
|
|||
|
|
// S1 = 1-2-3-4 . 0-1-2-3
|
|||
|
|
// S2 = 5-8-7-6 . 4-7-6-5
|
|||
|
|
// S3 = 1-5-6-2 . 0-4-5-1
|
|||
|
|
// S4 = 2-6-7-3 . 1-5-6-2
|
|||
|
|
// S5 = 3-7-8-4 . 2-6-7-3
|
|||
|
|
// S6 = 4-8-5-1 . 3-7-4-0
|
|||
|
|
Dictionary<FeFaceName, double> faces = new Dictionary<FeFaceName, double>();
|
|||
|
|
//
|
|||
|
|
if (faceNodeIds[0] && faceNodeIds[1] && faceNodeIds[2] && faceNodeIds[3]) faces.Add(FeFaceName.S1, GetArea(FeFaceName.S1, nodes));
|
|||
|
|
if (faceNodeIds[4] && faceNodeIds[7] && faceNodeIds[6] && faceNodeIds[5]) faces.Add(FeFaceName.S2, GetArea(FeFaceName.S2, nodes));
|
|||
|
|
if (faceNodeIds[0] && faceNodeIds[4] && faceNodeIds[5] && faceNodeIds[1]) faces.Add(FeFaceName.S3, GetArea(FeFaceName.S3, nodes));
|
|||
|
|
if (faceNodeIds[1] && faceNodeIds[5] && faceNodeIds[6] && faceNodeIds[2]) faces.Add(FeFaceName.S4, GetArea(FeFaceName.S4, nodes));
|
|||
|
|
if (faceNodeIds[2] && faceNodeIds[6] && faceNodeIds[7] && faceNodeIds[3]) faces.Add(FeFaceName.S5, GetArea(FeFaceName.S5, nodes));
|
|||
|
|
if (faceNodeIds[3] && faceNodeIds[7] && faceNodeIds[4] && faceNodeIds[0]) faces.Add(FeFaceName.S6, GetArea(FeFaceName.S6, nodes));
|
|||
|
|
//
|
|||
|
|
return faces;
|
|||
|
|
}
|
|||
|
|
public override double[] GetEquivalentForcesFromFaceName(FeFaceName faceName)
|
|||
|
|
{
|
|||
|
|
return new double[] { b, b, b, b };
|
|||
|
|
}
|
|||
|
|
public override double[] GetEquivalentForcesFromFaceName(FeFaceName faceName, double[] nodalValues)
|
|||
|
|
{
|
|||
|
|
return GetEquivalentForces(typeof(LinearQuadrilateralElement), nodalValues);
|
|||
|
|
}
|
|||
|
|
public override double GetArea(FeFaceName faceName, Dictionary<int, FeNode> nodes)
|
|||
|
|
{
|
|||
|
|
int[] cell = GetVtkCellFromFaceName(faceName);
|
|||
|
|
return GeometryTools.RectangleArea(nodes[cell[0]], nodes[cell[1]], nodes[cell[2]], nodes[cell[3]]);
|
|||
|
|
}
|
|||
|
|
public override double[] GetFaceCG(FeFaceName faceName, Dictionary<int, FeNode> nodes, out double area)
|
|||
|
|
{
|
|||
|
|
int[] cell = GetVtkCellFromFaceName(faceName);
|
|||
|
|
double[] cg = GeometryTools.QuadrilateralCG(nodes[cell[0]], nodes[cell[1]], nodes[cell[2]], nodes[cell[3]], out area);
|
|||
|
|
return cg;
|
|||
|
|
}
|
|||
|
|
public override double GetVolume(Dictionary<int, FeNode> nodes)
|
|||
|
|
{
|
|||
|
|
return GeometryTools.HexahedronVolume(nodes[NodeIds[0]], nodes[NodeIds[1]], nodes[NodeIds[2]], nodes[NodeIds[3]],
|
|||
|
|
nodes[NodeIds[4]], nodes[NodeIds[5]], nodes[NodeIds[6]], nodes[NodeIds[7]]);
|
|||
|
|
}
|
|||
|
|
public override double[] GetCG(Dictionary<int, FeNode> nodes, out double volume)
|
|||
|
|
{
|
|||
|
|
return GeometryTools.HexahedronCG(nodes[NodeIds[0]], nodes[NodeIds[1]], nodes[NodeIds[2]], nodes[NodeIds[3]],
|
|||
|
|
nodes[NodeIds[4]], nodes[NodeIds[5]], nodes[NodeIds[6]], nodes[NodeIds[7]],
|
|||
|
|
out volume);
|
|||
|
|
}
|
|||
|
|
public override FeElement DeepCopy()
|
|||
|
|
{
|
|||
|
|
return new LinearHexaElement(Id, PartId, NodeIds.ToArray());
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|