/// <summary>
/// Interpolate source values to target
/// </summary>
public void Interpolate(double[] sourceValues, double[] targetValues)
{
// Loop over all target elements/nodes
for (int i = 0; i < _interpData.Length; i++)
{
InterPData interPData = _interpData[i];
double value = 0;
double weight = 0;
int[] indices = interPData.Indices;
double[] weights = interPData.Weights;
// For angular-type data, find reference value
double refValue = 0;
if (_circularType != CircularValueTypes.Normal)
{
for (int j = 0; j < indices.Length; j++)
{
double sourceValue = sourceValues[indices[j]];
if (sourceValue != _deleteValue)
{
// First one found is good, break out.
refValue = sourceValue;
break;
}
}
}
// Loop over all source elements connected to target
for (int j = 0; j < indices.Length; j++)
{
double sourceValue = sourceValues[indices[j]];
if (sourceValue != _deleteValue)
{
// For angular type values, correct to match reference value
CircularValueHandler.ToReference(_circularType, ref sourceValue, refValue);
value += sourceValue * weights[j];
weight += weights[j];
}
}
if (weight == 0) // all element values were delete values
{
targetValues[i] = _deleteValue;
}
else
{
value /= weight;
// For angular type values, correct to match angular span.
CircularValueHandler.ToCircular(_circularType, ref value);
targetValues[i] = value;
}
}
}
/// <summary>
/// Interpolate values from source (element values) to target points.
/// </summary>
public void InterpolateToTarget(double[] sourceElementValues, double[] target)
{
// Firstly, interpolate to node values
_nodeInterpolator.Interpolate(sourceElementValues, _nodeValues);
for (int i = 0; i < _targets.Count; i++)
{
InterPData interPData = _targets[i];
if (interPData.Element1Index < 0)
{
// target not included in source
target[i] = _deleteValue;
continue;
}
// Do interpolation inside (element-element-node) triangle,
// disregarding any delete values.
double sourceElementValue = sourceElementValues[interPData.Element1Index];
if (sourceElementValue != _deleteValue)
{
double value = sourceElementValue * interPData.Element1Weight;
double weight = interPData.Element1Weight;
{
double otherElmentValue = sourceElementValues[interPData.Element2Index];
if (otherElmentValue != _deleteValue)
{
CircularValueHandler.ToReference(_circularType, ref otherElmentValue, sourceElementValue);
value += otherElmentValue * interPData.Element2Weight;
weight += interPData.Element2Weight;
}
}
{
double nodeValue = _nodeValues[interPData.NodeIndex];
if (nodeValue != _deleteValue)
{
CircularValueHandler.ToReference(_circularType, ref nodeValue, sourceElementValue);
value += nodeValue * interPData.NodeWeight;
weight += interPData.NodeWeight;
}
}
value /= weight;
CircularValueHandler.ToCircular(_circularType, ref value);
target[i] = value;
}
else
{
target[i] = _deleteValue;
}
}
}
/// <summary>
/// Returns interpolated value based on 3 node values
/// <para>
/// In case values are one of the circular types in <see cref="CircularValueTypes"/>,
/// then the values must first be re-referenced, <see cref="CircularValueHandler"/>.
/// </para>
/// </summary>
/// <param name="T1">Node value 1</param>
/// <param name="T2">Node value 2</param>
/// <param name="T3">Node value 3</param>
/// <param name="w1">Weights for node value 1</param>
/// <param name="w2">Weights for node value 2</param>
/// <param name="w3">Weights for node value 3</param>
/// <returns>Interpolated value</returns>
public double GetValue(
double w1,
double w2,
double w3,
double T1,
double T2,
double T3
)
{
if (CircularType != CircularValueTypes.Normal)
{
double circReference = DelVal;
// Try find circReference value - the first non-delete value
if (CircularValueHandler.AsReference(T1, ref circReference, DelVal) ||
CircularValueHandler.AsReference(T2, ref circReference, DelVal) ||
CircularValueHandler.AsReference(T3, ref circReference, DelVal))
{
CircularValueHandler.ToReference(CircularType, ref T1, circReference, DelVal);
CircularValueHandler.ToReference(CircularType, ref T2, circReference, DelVal);
CircularValueHandler.ToReference(CircularType, ref T3, circReference, DelVal);
}
}
double value = 0;
double weight = 0;
int delValMask = 0;
// Delete value mask values for each node
const int dvm1 = 0x1;
const int dvm2 = 0x2;
const int dvm3 = 0x4;
if (T1 != DelVal)
{
value += w1 * T1;
weight += w1;
}
// T1 is delete value - If we are close to this node, return delVal
else if (w1 > 0.5)
{
return(DelVal);
}
else
{
delValMask |= dvm1;
}
if (T2 != DelVal)
{
value += w2 * T2;
weight += w2;
}
// T2 is delete value - If we are close to this node, return delVal
else if (w2 > 0.5)
{
return(DelVal);
}
else
{
delValMask |= dvm2;
}
if (T3 != DelVal)
{
value += w3 * T3;
weight += w3;
}
// T3 is delete value - If we are close to this node, return delVal
else if (w3 > 0.5)
{
return(DelVal);
}
else
{
delValMask |= dvm3;
}
// Check if only one non-delete value is present
switch (delValMask)
{
//case 0: // All had values
// return value;
case dvm1: // Only one delete value, and we are outside the
case dvm2: // "delete value area".
case dvm3: // Weight them accordingly
value = value / weight;
break;
case dvm1 + dvm2: // Only T3 is non-delete
// If we are close to T3, use that, otherwise delVal
value = (w3 > 0.5) ? T3 : DelVal;
break;
case dvm2 + dvm3: // Only T1 is non-delete
// If we are close to T1, use that, otherwise delVal
value = (w1 > 0.5) ? T1 : DelVal;
break;
case dvm3 + dvm1: // Only T2 is non-delete
// If we are close to T2, use that, otherwise delVal
value = (w2 > 0.5) ? T2 : DelVal;
break;
}
CircularValueHandler.ToCircular(CircularType, ref value);
return(value);
}
/// <summary>
/// Returns interpolated value based on 4 node values
/// <para>
/// In case values are one of the circular types in <see cref="CircularValueTypes"/>,
/// then the values must first be re-referenced, <see cref="CircularValueHandler"/>.
/// </para>
/// </summary>
/// <param name="dx">Bilinear dx interpolation weights</param>
/// <param name="dy">Bilinear dy interpolation weights</param>
/// <param name="T00">Node value 1</param>
/// <param name="T10">Node value 2</param>
/// <param name="T11">Node value 3</param>
/// <param name="T01">Node value 4</param>
/// <returns>Interpolated value</returns>
// Matching CMzQuadrangle::GetValue
public double GetValue(
double dx,
double dy,
double T00,
double T10,
double T11,
double T01
)
{
if (CircularType != CircularValueTypes.Normal)
{
double circReference = DelVal;
// Try find circReference value - the first non-delete value
if (CircularValueHandler.AsReference(T00, ref circReference, DelVal) ||
CircularValueHandler.AsReference(T01, ref circReference, DelVal) ||
CircularValueHandler.AsReference(T11, ref circReference, DelVal) ||
CircularValueHandler.AsReference(T10, ref circReference, DelVal))
{
CircularValueHandler.ToReference(CircularType, ref T00, circReference, DelVal);
CircularValueHandler.ToReference(CircularType, ref T01, circReference, DelVal);
CircularValueHandler.ToReference(CircularType, ref T11, circReference, DelVal);
CircularValueHandler.ToReference(CircularType, ref T10, circReference, DelVal);
}
}
int deleteValueMask = DeleteValueMask(T00, T10, T11, T01);
const double m_xc = 0.5;
const double m_yc = 0.5;
double z;
switch (deleteValueMask)
{
case 0: // Default
if ((T00 == T10) && (T00 == T01) && (T00 == T11))
{
z = T00;
}
else
{
z = (1 - dx) * (1 - dy) * T00 + dx * (1 - dy) * T10 +
(1 - dx) * dy * T01 + dx * dy * T11;
}
break;
case 1: // Delete value: T00
if ((dx < m_xc) && (dy < m_yc))
{
z = DelVal;
}
else
{
z = (dx * (1 - dy) * T10 + (1 - dx) * dy * T01 + dx * dy * T11) /
(dx + dy - dx * dy);
}
break;
case 2: // Delete value: T10
if ((dx >= m_xc) && (dy < m_yc))
{
z = DelVal;
}
else
{
z = ((1 - dx) * (1 - dy) * T00 + (1 - dx) * dy * T01 + dx * dy * T11) /
(1 - dx + dx * dy);
}
break;
case 3: // Delete value: T00+T10
if (dy < m_yc)
{
z = DelVal;
}
else
{
z = ((1 - dx) * T01 + dx * T11);
}
break;
case 4: // Delete value: T01
if ((dx < m_xc) && (dy >= m_yc))
{
z = DelVal;
}
else
{
z = ((1 - dx) * (1 - dy) * T00 + dx * (1 - dy) * T10 + dx * dy * T11) /
(1 - dy + dx * dy);
}
break;
case 5: // Delete value: T00+T01
if (dx < m_xc)
{
z = DelVal;
}
else
{
z = (1 - dy) * T10 + dy * T11;
}
break;
case 6: // Delete value: T10+T01
if (((dx < m_xc) && (dy >= m_yc)) || ((dx >= m_xc) && (dy < m_yc)))
{
z = DelVal;
}
else
{
z = ((1 - dx) * (1 - dy) * T00 + dx * dy * T11) /
(1 - dx - dy + 2 * dx * dy);
}
break;
case 7: // Delete value: T00+T10+T01
if ((dx >= m_xc) && (dy >= m_yc))
{
z = T11;
}
else
{
z = DelVal;
}
break;
case 8: // Delete value: T11
if ((dx >= m_xc) && (dy >= m_yc))
{
z = DelVal;
}
else
{
z = ((1 - dx) * (1 - dy) * T00 + dx * (1 - dy) * T10 +
(1 - dx) * dy * T01) /
(1 - dx * dy);
}
break;
case 9: // Delete value: T00+T11
if (((dx < m_xc) && (dy < m_yc)) || ((dx >= m_xc) && (dy >= m_yc)))
{
z = DelVal;
}
else
{
z = (dx * (1 - dy) * T10 + (1 - dx) * dy * T01) /
(dx + dy - 2 * dx * dy);
}
break;
case 10: // Delete value: T10+T11
if (dx >= m_xc)
{
z = DelVal;
}
else
{
z = (1 - dy) * T00 + dy * T01;
}
break;
case 11: // Delete value: T00+T10+T11
if ((dx < m_xc) && (dy >= m_yc))
{
z = T01;
}
else
{
z = DelVal;
}
break;
case 12: // Delete value: T01+T11
if (dy >= m_yc)
{
z = DelVal;
}
else
{
z = (1 - dx) * T00 + dx * T10;
}
break;
case 13: // Delete value: T00+T01+T11
if ((dx >= m_xc) && (dy < m_yc))
{
z = T10;
}
else
{
z = DelVal;
}
break;
case 14: // Delete value: T10+T01+T11
if ((dx < m_xc) && (dy < m_yc))
{
z = T00;
}
else
{
z = DelVal;
}
break;
case 15: // Delete value: T00+T10+T01+T11
z = DelVal;
break;
//-------------------------
// Smooth delete value chop variants
// Calculation of z is identical, though the chopping is different
case 16: // 0: Default
if ((T00 == T10) && (T00 == T01) && (T00 == T11))
{
z = T00;
}
else
{
z = (1 - dx) * (1 - dy) * T00 + dx * (1 - dy) * T10 +
(1 - dx) * dy * T01 + dx * dy * T11;
}
break;
case 17: // 1: Delete value: T00
if (dx + dy < 0.5)
{
z = DelVal;
}
else
{
z = (dx * (1 - dy) * T10 + (1 - dx) * dy * T01 + dx * dy * T11) /
(dx + dy - dx * dy);
}
break;
case 18: // 2: Delete value: T10
if (dx - dy >= 0.5)
{
z = DelVal;
}
else
{
z = ((1 - dx) * (1 - dy) * T00 + (1 - dx) * dy * T01 + dx * dy * T11) /
(1 - dx + dx * dy);
}
break;
case 19: // 3: Delete value: T00+T10
if (dy < 0.5)
{
z = DelVal;
}
else
{
z = ((1 - dx) * T01 + dx * T11);
}
break;
case 20: // 4: Delete value: T01
if (dx - dy < -0.5)
{
z = DelVal;
}
else
{
z = ((1 - dx) * (1 - dy) * T00 + dx * (1 - dy) * T10 + dx * dy * T11) /
(1 - dy + dx * dy);
}
break;
case 21: // 5: Delete value: T00+T01
if (dx < 0.5)
{
z = DelVal;
}
else
{
z = (1 - dy) * T10 + dy * T11;
}
break;
case 22: // 6: Delete value: T10+T01
if ((dx + dy >= 0.5) && (dx + dy < 1.5))
{
z = DelVal;
}
else
{
z = ((1 - dx) * (1 - dy) * T00 + dx * dy * T11) /
(1 - dx - dy + 2 * dx * dy);
}
break;
case 23: // 7: Delete value: T00+T10+T01
if (dx + dy < 1.5)
{
z = DelVal;
}
else
{
z = T11;
}
break;
case 24: // 8: Delete value: T11
if (dx + dy >= 1.5)
{
z = DelVal;
}
else
{
z = ((1 - dx) * (1 - dy) * T00 + dx * (1 - dy) * T10 +
(1 - dx) * dy * T01) /
(1 - dx * dy);
}
break;
case 25: // 9: Delete value: T00+T11
if ((dx - dy >= -0.5) && (dx - dy < 0.5))
{
z = DelVal;
}
else
{
z = (dx * (1 - dy) * T10 + (1 - dx) * dy * T01) /
(dx + dy - 2 * dx * dy);
}
break;
case 26: // 10: Delete value: T10+T11
if (dx >= 0.5)
{
z = DelVal;
}
else
{
z = (1 - dy) * T00 + dy * T01;
}
break;
case 27: // 11: Delete value: T00+T10+T11
if (dx - dy > -0.5)
{
z = DelVal;
}
else
{
z = T01;
}
break;
case 28: // 12: Delete value: T01+T11
if (dy >= 0.5)
{
z = DelVal;
}
else
{
z = (1 - dx) * T00 + dx * T10;
}
break;
case 29: // 13: Delete value: T00+T01+T11
if (dx - dy < 0.5)
{
z = DelVal;
}
else
{
z = T10;
}
break;
case 30: // 14: Delete value: T10+T01+T11
if (dx + dy > 0.5)
{
z = DelVal;
}
else
{
z = T00;
}
break;
case 31: // 15: Delete value: T00+T10+T01+T11
z = DelVal;
break;
default:
z = DelVal;
break;
}
CircularValueHandler.ToCircular(CircularType, ref z);
return(z);
}
