/// <summary>
/// Evaluates (maps) ILRange on my IndexOffsets and return shifted version.
/// </summary>
/// <param name="range">range object specifying the selection to be addressed
/// relative to my indices. Range's dimensions may be the same size or less than my
/// dimensions. If range is null, the full storage will be addressed. </param>
/// <param name="shift">Number of dimensions to shift mapped range</param>
/// <returns>Mapped ILIndexOffset object. It may be used for direct addressing the
/// data positions inside the physical storage. </returns>
/// <remarks>TODO : prevent the global offset inside physicalStorage, holded in the
/// first dimensions of m_indexOffset
/// to be shifted to another position if shift != 0!!!</remarks>
public ILIndexOffset Map(ILRange range, int shift) {
int [][] idx;
try {
// **************************** Map full storage ***********************************
if (range == null) {
if (shift == 0)
// early exit
return new ILIndexOffset (this);
// return full shifted version
bool stop = false; int addSingletonValue = 0;
int nonSingletonDims = 0;
int rngPos; int idxPos = m_idxOffset.Length - 1;
idx = new int[m_idxOffset.Length][];
for (int d = m_idxOffset.Length; d-->0;) {
rngPos = (d + shift) % m_idxOffset.Length;
// recognize "second end" after shift -> remove non singleton dimensions
if (rngPos == m_idxOffset.Length-1) stop = false;
if (m_idxOffset[rngPos].Length == 1 && !stop) {
// save singleton dimensions values for later sum
addSingletonValue += m_idxOffset[rngPos][0];
} else {
stop = true;
nonSingletonDims++;
idx[idxPos] = new int [m_idxOffset[rngPos].Length];
for (int i = 0; i < m_idxOffset[rngPos].Length; i++) {
idx[idxPos][i] = m_idxOffset[rngPos][i];
}
idxPos--;
}
}
// move int[][] to start in case of non singleton dimensions beeing removed
if (idx != null && idxPos >= 0) {
int [][] tmp1 = new int[nonSingletonDims][];
System.Array.Copy(idx,idxPos+1,tmp1,0,nonSingletonDims);
idx = tmp1;
}
// add (removed) singleton dimensions to first dimension
if (addSingletonValue > 0 && idx != null && idx.Length > 0) {
for (int d = idx[0].Length; d-->0;) {
idx[0][d] += addSingletonValue;
}
}
return new ILIndexOffset(idx,(int[])m_isRegularySpaced.Clone());
}
} catch (Exception e) {
throw new ILArgumentException ("error mapping ILRange to ILIndexOffset.",e);
}
if (range.NumberOfDimensions > m_idxOffset.Length)
throw new ArgumentException("invalid range specification");
idx = new int[range.NumberOfDimensions][];
try {
// **************************** Map ranged storage ***********************************
bool stop = false; int addSingletonValue = 0;
int nonSingletonDims = 0;
int rngPos; int idxPos = range.NumberOfDimensions - 1;
int [] regularSpacing = new int [range.NumberOfDimensions];
for (int d = range.NumberOfDimensions; d-->0;) {
rngPos = (d + shift) % range.NumberOfDimensions;
// recognize "second end" after shift -> remove non singleton dimensions
if (rngPos == range.NumberOfDimensions-1) stop = false;
if (range[rngPos].Length == 1 && !stop && range[rngPos,0] >= 0) {
// save singleton dimensions values for later sum
addSingletonValue += m_idxOffset[rngPos][range[rngPos,0]];
} else if (range[rngPos].Length == 1 && range[rngPos,0]<0 ) {
#region full dimension addressed
stop = true;
nonSingletonDims++;
if (rngPos == range.NumberOfDimensions-1 && -range[rngPos,0] > m_idxOffset[idxPos].Length-1) {
// resulting array must be reshaped -> add trailing dimensions to last dimensions
int curDimLen = m_idxOffset[rngPos].Length;
int myDimsNr = m_idxOffset.Length;
int limit = (-1)*range[rngPos,0]+1;
int [] posArr = new int[m_idxOffset.Length];
int higherDims = 0;
for (int i = rngPos; i < myDimsNr; i++)
higherDims += m_idxOffset[i][posArr[i]];
idx[idxPos] = new int [limit];
int curPos = 0;
int[] curidxOffsDim = m_idxOffset[rngPos];
while (curPos < limit) {
// sum higher dims
higherDims = 0;
for (int i = rngPos +1; i < myDimsNr; i++)
higherDims += m_idxOffset[i][posArr[i]];
// current dimension
for (int i = 0; i < curDimLen; i++) {
idx[idxPos][curPos++] = curidxOffsDim[i]+higherDims;
}
// increase higher dimensions
int di = rngPos + 1;
while (di < myDimsNr) {
posArr[di]++;
if (posArr[di] >= m_idxOffset[di].Length) {
posArr[di++] = 0;
} else {
break;
}
}
}
// todo: it might be possible to determine, if result is regulary spaced. Simple case would be
// to scan the entries while filling. But...
regularSpacing[idxPos] = int.MinValue;
} else {
idx[idxPos] = new int [(-1) * range[rngPos,0] + 1];
for (int i = 0; i < idx[idxPos].Length; i++) {
idx[idxPos][i] = m_idxOffset[rngPos][i];
}
regularSpacing[idxPos] = (range.Spacing(rngPos) > int.MinValue && m_isRegularySpaced[rngPos] > int.MinValue) ?
range.Spacing(rngPos) * m_isRegularySpaced[rngPos] : int.MinValue;
}
#endregion full dimension addressed
idxPos--;
} else {
// arbitrary indices inside dimension
stop = true;
nonSingletonDims++;
idx[idxPos] = new int [range[rngPos].Length];
if (rngPos == range.NumberOfDimensions - 1
&& range.NumberOfDimensions < m_idxOffset.Length) {
// allow for indices > dimlen
for (int i = 0; i < range[rngPos].Length; i++) {
int destVal = 0;
int secIdx = range[rngPos,i];
for (int idxInd = rngPos; idxInd < m_idxOffset.Length;) {
destVal += m_idxOffset[idxInd][secIdx % m_idxOffset[idxInd].Length];
secIdx /= m_idxOffset[idxInd++].Length;
}
if (secIdx > 0)
throw new ILArgumentException("index " + range[rngPos,i].ToString()
+ " out of range for dimension " + d.ToString());
idx[idxPos][i] = destVal;
}
} else {
// only indices in dimension range allowed
for (int i = 0; i < range[rngPos].Length; i++) {
int secIdx = range[rngPos,i];
idx[idxPos][i] = m_idxOffset[rngPos][secIdx];
}
}
regularSpacing[idxPos] = (range.Spacing(rngPos) > int.MinValue && m_isRegularySpaced[rngPos] > int.MinValue) ?
range.Spacing(rngPos) * m_isRegularySpaced[rngPos] : int.MinValue;
idxPos--;
}
}
// move int[][] to start in case of non singleton dimensions beeing removed
if (nonSingletonDims < 2) {
// create matrix at least
System.Diagnostics.Debug.Assert(false,"reference dimensions too small. At least 2 dimensions required.");
if (nonSingletonDims == 0) {
// range is 0D
idx = new int[2][];
idx[0] = new int[1] { addSingletonValue };
idx[1] = new int[1] { 0 };
} else {
// range is 1D
int[][] tmp1 = new int[2][];
int size = idx[idxPos + 1].Length;
tmp1[0] = new int[size];
for (int d = size; d-->0; )
tmp1[0][d] = idx[idxPos + 1][d];
tmp1[1] = new int[1] { addSingletonValue }; // öurhg! ugly hack !
idx = tmp1;
}
} else {
if (idxPos >= 0) {
int newLen = idx.Length - idxPos - 1;
int[][] tmp1 = new int[newLen][];
System.Array.Copy(idx, idxPos + 1, tmp1, 0, newLen);
idx = tmp1;
int[] tmp2 = new int[newLen];
System.Array.Copy(regularSpacing, idxPos + 1, tmp2, 0, newLen);
regularSpacing = tmp2;
}
if (addSingletonValue > 0 && idx.Length > 0) {
for (int d = idx[0].Length; d-- > 0; ) {
idx[0][d] += addSingletonValue;
}
}
}
return new ILIndexOffset(idx,regularSpacing);
} catch (Exception e) {
throw new ArgumentException ("Invalid Range specification:",e);
}
}
/// <summary>
/// Evaluates (maps) ILRange on my IndexOffsets and return shifted version.
/// </summary>
/// <param name="range">range object specifying the selection to be addressed
/// relative to my indices. Range's dimensions may be the same size or less than my
/// dimensions. If range is null, the full storage will be addressed. </param>
/// <param name="shift">Number of dimensions to shift mapped range</param>
/// <returns>Mapped ILIndexOffset object. It may be used for direct addressing the
/// data positions inside the physical storage. </returns>
/// <remarks>TODO : prevent the global offset inside physicalStorage, holded in the
/// first dimensions of m_indexOffset
/// to be shifted to another position if shift != 0!!!</remarks>
public ILIndexOffset Map(ILRange range, int shift)
{
int [][] idx;
try {
// **************************** Map full storage ***********************************
if (range == null)
{
if (shift == 0)
{
// early exit
return(new ILIndexOffset(this));
}
// return full shifted version
bool stop = false; int addSingletonValue = 0;
int nonSingletonDims = 0;
int rngPos; int idxPos = m_idxOffset.Length - 1;
idx = new int[m_idxOffset.Length][];
for (int d = m_idxOffset.Length; d-- > 0;)
{
rngPos = (d + shift) % m_idxOffset.Length;
// recognize "second end" after shift -> remove non singleton dimensions
if (rngPos == m_idxOffset.Length - 1)
{
stop = false;
}
if (m_idxOffset[rngPos].Length == 1 && !stop)
{
// save singleton dimensions values for later sum
addSingletonValue += m_idxOffset[rngPos][0];
}
else
{
stop = true;
nonSingletonDims++;
idx[idxPos] = new int [m_idxOffset[rngPos].Length];
for (int i = 0; i < m_idxOffset[rngPos].Length; i++)
{
idx[idxPos][i] = m_idxOffset[rngPos][i];
}
idxPos--;
}
}
// move int[][] to start in case of non singleton dimensions beeing removed
if (idx != null && idxPos >= 0)
{
int [][] tmp1 = new int[nonSingletonDims][];
System.Array.Copy(idx, idxPos + 1, tmp1, 0, nonSingletonDims);
idx = tmp1;
}
// add (removed) singleton dimensions to first dimension
if (addSingletonValue > 0 && idx != null && idx.Length > 0)
{
for (int d = idx[0].Length; d-- > 0;)
{
idx[0][d] += addSingletonValue;
}
}
return(new ILIndexOffset(idx, (int[])m_isRegularySpaced.Clone()));
}
} catch (Exception e) {
throw new ILArgumentException("error mapping ILRange to ILIndexOffset.", e);
}
if (range.NumberOfDimensions > m_idxOffset.Length)
{
throw new ArgumentException("invalid range specification");
}
idx = new int[range.NumberOfDimensions][];
try {
// **************************** Map ranged storage ***********************************
bool stop = false; int addSingletonValue = 0;
int nonSingletonDims = 0;
int rngPos; int idxPos = range.NumberOfDimensions - 1;
int [] regularSpacing = new int [range.NumberOfDimensions];
for (int d = range.NumberOfDimensions; d-- > 0;)
{
rngPos = (d + shift) % range.NumberOfDimensions;
// recognize "second end" after shift -> remove non singleton dimensions
if (rngPos == range.NumberOfDimensions - 1)
{
stop = false;
}
if (range[rngPos].Length == 1 && !stop && range[rngPos, 0] >= 0)
{
// save singleton dimensions values for later sum
addSingletonValue += m_idxOffset[rngPos][range[rngPos, 0]];
}
else if (range[rngPos].Length == 1 && range[rngPos, 0] < 0)
{
#region full dimension addressed
stop = true;
nonSingletonDims++;
if (rngPos == range.NumberOfDimensions - 1 && -range[rngPos, 0] > m_idxOffset[idxPos].Length - 1)
{
// resulting array must be reshaped -> add trailing dimensions to last dimensions
int curDimLen = m_idxOffset[rngPos].Length;
int myDimsNr = m_idxOffset.Length;
int limit = (-1) * range[rngPos, 0] + 1;
int [] posArr = new int[m_idxOffset.Length];
int higherDims = 0;
for (int i = rngPos; i < myDimsNr; i++)
{
higherDims += m_idxOffset[i][posArr[i]];
}
idx[idxPos] = new int [limit];
int curPos = 0;
int[] curidxOffsDim = m_idxOffset[rngPos];
while (curPos < limit)
{
// sum higher dims
higherDims = 0;
for (int i = rngPos + 1; i < myDimsNr; i++)
{
higherDims += m_idxOffset[i][posArr[i]];
}
// current dimension
for (int i = 0; i < curDimLen; i++)
{
idx[idxPos][curPos++] = curidxOffsDim[i] + higherDims;
}
// increase higher dimensions
int di = rngPos + 1;
while (di < myDimsNr)
{
posArr[di]++;
if (posArr[di] >= m_idxOffset[di].Length)
{
posArr[di++] = 0;
}
else
{
break;
}
}
}
// todo: it might be possible to determine, if result is regulary spaced. Simple case would be
// to scan the entries while filling. But...
regularSpacing[idxPos] = int.MinValue;
}
else
{
idx[idxPos] = new int [(-1) * range[rngPos, 0] + 1];
for (int i = 0; i < idx[idxPos].Length; i++)
{
idx[idxPos][i] = m_idxOffset[rngPos][i];
}
regularSpacing[idxPos] = (range.Spacing(rngPos) > int.MinValue && m_isRegularySpaced[rngPos] > int.MinValue) ?
range.Spacing(rngPos) * m_isRegularySpaced[rngPos] : int.MinValue;
}
#endregion full dimension addressed
idxPos--;
}
else
{
// arbitrary indices inside dimension
stop = true;
nonSingletonDims++;
idx[idxPos] = new int [range[rngPos].Length];
if (rngPos == range.NumberOfDimensions - 1 &&
range.NumberOfDimensions < m_idxOffset.Length)
{
// allow for indices > dimlen
for (int i = 0; i < range[rngPos].Length; i++)
{
int destVal = 0;
int secIdx = range[rngPos, i];
for (int idxInd = rngPos; idxInd < m_idxOffset.Length;)
{
destVal += m_idxOffset[idxInd][secIdx % m_idxOffset[idxInd].Length];
secIdx /= m_idxOffset[idxInd++].Length;
}
if (secIdx > 0)
{
throw new ILArgumentException("index " + range[rngPos, i].ToString()
+ " out of range for dimension " + d.ToString());
}
idx[idxPos][i] = destVal;
}
}
else
{
// only indices in dimension range allowed
for (int i = 0; i < range[rngPos].Length; i++)
{
int secIdx = range[rngPos, i];
idx[idxPos][i] = m_idxOffset[rngPos][secIdx];
}
}
regularSpacing[idxPos] = (range.Spacing(rngPos) > int.MinValue && m_isRegularySpaced[rngPos] > int.MinValue) ?
range.Spacing(rngPos) * m_isRegularySpaced[rngPos] : int.MinValue;
idxPos--;
}
}
// move int[][] to start in case of non singleton dimensions beeing removed
if (nonSingletonDims < 2)
{
// create matrix at least
System.Diagnostics.Debug.Assert(false, "reference dimensions too small. At least 2 dimensions required.");
if (nonSingletonDims == 0)
{
// range is 0D
idx = new int[2][];
idx[0] = new int[1] {
addSingletonValue
};
idx[1] = new int[1] {
0
};
}
else
{
// range is 1D
int[][] tmp1 = new int[2][];
int size = idx[idxPos + 1].Length;
tmp1[0] = new int[size];
for (int d = size; d-- > 0;)
{
tmp1[0][d] = idx[idxPos + 1][d];
}
tmp1[1] = new int[1] {
addSingletonValue
}; // öurhg! ugly hack !
idx = tmp1;
}
}
else
{
if (idxPos >= 0)
{
int newLen = idx.Length - idxPos - 1;
int[][] tmp1 = new int[newLen][];
System.Array.Copy(idx, idxPos + 1, tmp1, 0, newLen);
idx = tmp1;
int[] tmp2 = new int[newLen];
System.Array.Copy(regularSpacing, idxPos + 1, tmp2, 0, newLen);
regularSpacing = tmp2;
}
if (addSingletonValue > 0 && idx.Length > 0)
{
for (int d = idx[0].Length; d-- > 0;)
{
idx[0][d] += addSingletonValue;
}
}
}
return(new ILIndexOffset(idx, regularSpacing));
} catch (Exception e) {
throw new ArgumentException("Invalid Range specification:", e);
}
}