/// <summary>
/// Interpolate node values to the (x,y) coordinate.
/// </summary>
/// <param name="x">X coordinate</param>
/// <param name="y">Y coordinate</param>
/// <param name="nodeValues">Node values</param>
public double InterpolateNodeToXY(double x, double y, double[] nodeValues)
{
// Find element that includes the (x,y) coordinate
int element = _ssearcher.FindElement(x, y);
// Check if element has been found, i.e. includes the (x,y) point
if (element >= 0)
{
int[] nodes = _smesh.ElementTable[element];
if (nodes.Length == 3)
{
var weights = InterpTriangle.InterpolationWeights(x, y, _smesh, nodes);
return(_interpT.GetValue(weights, nodes, _smesh, nodeValues));
}
if (nodes.Length == 4)
{
var weights = InterpQuadrangle.InterpolationWeights(x, y, _smesh, nodes);
return(_interpQ.GetValue(weights, nodes, _smesh, nodeValues));
}
}
return(DeleteValue);
}
/// <summary>
/// Add a target, by specifying its (x,y) coordinate.
/// </summary>
private void AddSTarget(double x, double y)
{
// Find element that includes the (x,y) coordinate
int element = _ssearcher.FindElement(x, y);
// Setup interpolation from node values
if (NodeValueInterpolation)
{
InterpNodeData interp;
if (element >= 0)
{
int[] nodes = _smesh.ElementTable[element];
if (nodes.Length == 3)
{
var weights = InterpTriangle.InterpolationWeights(x, y, _smesh, nodes);
interp = new InterpNodeData(element, weights.w1, weights.w2, weights.w3);
}
else if (nodes.Length == 4)
{
var weights = InterpQuadrangle.InterpolationWeights(x, y, _smesh, nodes);
interp = new InterpNodeData(element, weights.dx, weights.dy);
}
else
{
interp = InterpNodeData.Undefined();
}
}
else
{
interp = InterpNodeData.Undefined();
}
if (_targetsNode == null)
{
_targetsNode = new List <InterpNodeData>();
}
_targetsNode.Add(interp);
}
// Setup interpolation from element+node values
if (ElmtNodeValueInterpolation)
{
InterpElmtNode.Weights weights;
// Check if element has been found, i.e. includes the (x,y) point
if (element >= 0)
{
weights = InterpElmtNode.InterpolationWeights(x, y, element, _smesh);
}
else
{
weights = InterpElmtNode.Undefined();
}
if (_targetsElmtNode == null)
{
_targetsElmtNode = new List <InterpElmtNode.Weights>();
}
_targetsElmtNode.Add(weights);
}
}
/// <summary>
/// Add a target, by specifying its (x,y) coordinate.
/// </summary>
public void AddTarget(double x, double y)
{
if (_mesh == null)
{
AddSTarget(x, y);
return;
}
// Find element that includes the (x,y) coordinate
MeshElement element = _searcher.FindElement(x, y);
// Setup interpolation from node values
if (NodeValueInterpolation)
{
InterpNodeData interp;
// Check if element has been found, i.e. includes the (x,y) point
if (element != null)
{
var nodes = element.Nodes;
if (nodes.Count == 3)
{
var weights = InterpTriangle.InterpolationWeights(x, y, nodes);
interp = new InterpNodeData(element.Index, weights.w1, weights.w2, weights.w3);
}
else if (nodes.Count == 4)
{
var weights = InterpQuadrangle.InterpolationWeights(x, y, nodes);
interp = new InterpNodeData(element.Index, weights.dx, weights.dy);
}
else
{
interp = InterpNodeData.Undefined();
}
}
else
{
interp = InterpNodeData.Undefined();
}
if (_targetsNode == null)
{
_targetsNode = new List <InterpNodeData>();
}
_targetsNode.Add(interp);
}
// Setup interpolation from element+node values
if (ElmtNodeValueInterpolation)
{
InterpElmtNode.Weights weights;
// Check if element has been found, i.e. includes the (x,y) point
if (element != null)
{
weights = InterpElmtNode.InterpolationWeights(x, y, element);
}
else
{
weights = InterpElmtNode.Undefined();
}
if (_targetsElmtNode == null)
{
_targetsElmtNode = new List <InterpElmtNode.Weights>();
}
_targetsElmtNode.Add(weights);
}
}