/// <summary>
/// This function computes the b and y fragments needed
/// for the computation of XCorr.
/// </summary>
/// <param name="peptide">A peptide sequence</param>
/// <param name="maxIonCharge">Max charge state for a fragment</param>
/// <param name="frags">A reference map to hold the fragment masses and their charges states</param>
/// <param name="fragTypes">A reference map to hold the fragment masses and their ion types</param>
public static void calculateSequenceIons(Peptide peptide, int maxIonCharge, ref Map <double, int> frags, ref Map <double, char> fragTypes)
{
Fragmentation fragmentation = peptide.fragmentation(true, true);
for (int i = 1; i <= maxIonCharge; ++i)
{
for (int c = 0; c < peptide.sequence.Length; ++c)
{
int nLength = c;
int cLength = peptide.sequence.Length - c;
if (nLength > 0)
{
double mass = fragmentation.b(nLength, i);
frags.Insert(new MutableKeyValuePair <double, int>(mass, i));
fragTypes.Insert(new MutableKeyValuePair <double, char>(mass, 'b'));
}
if (cLength > 0)
{
double mass = fragmentation.y(cLength, i);
frags.Insert(new MutableKeyValuePair <double, int>(mass, i));
fragTypes.Insert(new MutableKeyValuePair <double, char>(mass, 'y'));
}
}
}
}
/// <summary>
/// This function takes a peptide and predicts the b/y sequence ions associated with it.
/// </summary>
/// <param name="peptide"></param>
/// <param name="maxIonCharge"></param>
/// <param name="fragMasses"></param>
public static void calculateSequenceIons(Peptide peptide, int maxIonCharge, ref Set <double> fragMasses)
{
Fragmentation fragmentation = peptide.fragmentation(true, true);
for (int i = 1; i <= maxIonCharge; ++i)
{
for (int c = 0; c < peptide.sequence.Length; ++c)
{
int nLength = c;
int cLength = peptide.sequence.Length - c;
if (nLength > 0)
{
fragMasses.Add(fragmentation.b(nLength, i));
}
if (cLength > 0)
{
fragMasses.Add(fragmentation.y(cLength, i));
}
}
}
}
///<summary>Adds user requested ion series on top of the chart.</summary>
private void addIonSeries (GraphObjList list, pwiz.MSGraph.MSPointList points, Peptide peptide, Fragmentation fragmentation, string topSeries, string bottomSeries)
{
int ionSeriesChargeState = min;
string sequence = peptide.sequence;
ModificationMap modifications = peptide.modifications();
// Select the color for the ion series.
Color topSeriesColor;
Color bottomSeriesColor;
switch (topSeries)
{
default: topSeriesColor = Color.Gray; break;
case "a": topSeriesColor = Color.YellowGreen; break;
case "b": topSeriesColor = Color.BlueViolet; break;
case "c": topSeriesColor = Color.Orange; break;
}
switch (bottomSeries)
{
default: bottomSeriesColor = Color.Gray; break;
case "x": bottomSeriesColor = Color.Green; break;
case "y": bottomSeriesColor = Color.Blue; break;
case "z": bottomSeriesColor = Color.OrangeRed; break;
case "z*": bottomSeriesColor = Color.Crimson; break;
}
// Ion series offsets. These offsets control where on the chart a particular ion series
// get displayed
double topSeriesOffset = 0.025;
double bottomSeriesOffset = 0.1;
if (topSeries.Length == 0)
bottomSeriesOffset = topSeriesOffset;
double topSeriesLeftPoint = 0.0;
double bottomSeriesLeftPoint = 0.0;
// Step through each fragmentation site
for (int i = 1; i <= sequence.Length; ++i)
{
// Paint the top series first
double rightPoint = 0.0;
// Figure out the right mz for this fragmentaion site
switch (topSeries)
{
case "a": rightPoint = fragmentation.a(i, ionSeriesChargeState); break;
case "b": rightPoint = fragmentation.b(i, ionSeriesChargeState); break;
case "c": if (i < sequence.Length) rightPoint = fragmentation.c(i, ionSeriesChargeState); break;
default: continue;
}
// If the left mz and right mz are different
if (rightPoint > 0 && topSeriesLeftPoint != rightPoint)
{
LineObj line;
// Use a dashed line format if there are fragment ions supporting this
// amino acid
if (!aminoAcidHasFragmentEvidence(points, topSeriesLeftPoint, rightPoint))
{
// Draw the line from previous mz to site to this mz in trasparent color.
line = new LineObj(Color.FromArgb(115, topSeriesColor), topSeriesLeftPoint, topSeriesOffset, rightPoint, topSeriesOffset);
line.Line.Style = System.Drawing.Drawing2D.DashStyle.Dash;
}
else
{
// Draw the line from previous mz to site to this mz in solid color.
line = new LineObj(topSeriesColor, topSeriesLeftPoint, topSeriesOffset, rightPoint, topSeriesOffset);
}
line.Location.CoordinateFrame = CoordType.XScaleYChartFraction;
line.Line.Width = 2;
line.ZOrder = ZOrder.F_BehindGrid;
line.IsClippedToChartRect = true;
list.Add(line);
// Add a tick demarking the fragmentation site.
LineObj tick = new LineObj(topSeriesColor, rightPoint, (topSeriesOffset - 0.015), rightPoint, (topSeriesOffset + 0.015));
tick.Location.CoordinateFrame = CoordType.XScaleYChartFraction;
tick.Line.Width = 2;
tick.IsClippedToChartRect = true;
list.Add(tick);
// Add a text box in the middle of the left and right mz boundaries
StringBuilder label = new StringBuilder(sequence[i - 1].ToString());
// Figure out if any mods are there on this amino acid
double deltaMass = modifications[i - 1].monoisotopicDeltaMass();
// Round the mod mass and append it to the amino acid as a string
if (deltaMass > 0.0)
{
label.Append("+" + Math.Round(deltaMass));
}
else if (deltaMass < 0.0)
{
label.Append(Math.Round(deltaMass));
}
TextObj text = new TextObj(label.ToString(), (topSeriesLeftPoint + rightPoint) / 2.0,
topSeriesOffset, CoordType.XScaleYChartFraction, AlignH.Center, AlignV.Center);
text.ZOrder = ZOrder.A_InFront;
text.FontSpec = new FontSpec("Arial", 13, Color.Black, true, false, false);
text.FontSpec.Border.IsVisible = false;
text.FontSpec.Fill.Color = Color.White;
text.IsClippedToChartRect = true;
list.Add(text);
topSeriesLeftPoint = rightPoint;
}
// Time to paint the bottom series
// Get the right mz for this series
switch (bottomSeries)
{
case "x": if (i < sequence.Length) rightPoint = fragmentation.x(i, ionSeriesChargeState); break;
case "y": rightPoint = fragmentation.y(i, ionSeriesChargeState); break;
case "z": rightPoint = fragmentation.z(i, ionSeriesChargeState); break;
case "z*": rightPoint = fragmentation.zRadical(i, ionSeriesChargeState); break;
default: rightPoint = 0.0; break;
}
// If the left and right mz are different
if (rightPoint > 0 && bottomSeriesLeftPoint != rightPoint)
{
LineObj line;
// Use a dashed line format if there are fragment ions supporting this
// amino acid
if (!aminoAcidHasFragmentEvidence(points, bottomSeriesLeftPoint, rightPoint))
{
// Draw the line from previous mz to site to this mz in trasparent color.
line = new LineObj(Color.FromArgb(115, bottomSeriesColor), bottomSeriesLeftPoint, bottomSeriesOffset, rightPoint, bottomSeriesOffset);
line.Line.Style = System.Drawing.Drawing2D.DashStyle.Dash;
}
else
{
// Draw the line from previous mz to site to this mz in solid color.
line = new LineObj(bottomSeriesColor, bottomSeriesLeftPoint, bottomSeriesOffset, rightPoint, bottomSeriesOffset);
}
line.Location.CoordinateFrame = CoordType.XScaleYChartFraction;
line.Line.Width = 2;
line.ZOrder = ZOrder.F_BehindGrid;
line.IsClippedToChartRect = true;
list.Add(line);
// Draw a tick mark demarking the fragmentation site
LineObj tick = new LineObj(bottomSeriesColor, rightPoint, (bottomSeriesOffset - 0.015), rightPoint, (bottomSeriesOffset + 0.015));
tick.Location.CoordinateFrame = CoordType.XScaleYChartFraction;
tick.Line.Width = 2;
tick.IsClippedToChartRect = true;
list.Add(tick);
// Add the text label containing the amino acid
StringBuilder label = new StringBuilder(sequence[sequence.Length - i].ToString());
// Figure out if any mods are there on this amino acid
double deltaMass = modifications[sequence.Length - i].monoisotopicDeltaMass();
// Round the mod mass and append it to the amino acid as a string
if (deltaMass > 0.0)
{
label.Append("+" + Math.Round(deltaMass));
}
else if (deltaMass < 0.0)
{
label.Append(Math.Round(deltaMass));
}
TextObj text = new TextObj(label.ToString(), (bottomSeriesLeftPoint + rightPoint) / 2.0,
bottomSeriesOffset, CoordType.XScaleYChartFraction, AlignH.Center, AlignV.Center);
text.ZOrder = ZOrder.A_InFront;
text.FontSpec = new FontSpec("Arial", 13, Color.Black, true, false, false);
text.FontSpec.Border.IsVisible = false;
text.FontSpec.Fill.Color = Color.White;
text.IsClippedToChartRect = true;
list.Add(text);
bottomSeriesLeftPoint = rightPoint;
}
}
}
///<summary>Adds user requested ion series to the fragmentation summary.</summary>
private void addFragmentationSummary (GraphObjList list, pwiz.MSGraph.MSPointList points, Peptide peptide, Fragmentation fragmentation, string topSeries, string bottomSeries)
{
int ionSeriesChargeState = min;
string sequence = peptide.sequence;
ModificationMap modifications = peptide.modifications();
// Select the color for the ion series.
Color topSeriesColor;
Color bottomSeriesColor;
switch (topSeries)
{
default: topSeriesColor = Color.Gray; break;
case "a": topSeriesColor = Color.YellowGreen; break;
case "b": topSeriesColor = Color.BlueViolet; break;
case "c": topSeriesColor = Color.Orange; break;
}
switch (bottomSeries)
{
default: bottomSeriesColor = Color.Gray; break;
case "x": bottomSeriesColor = Color.Green; break;
case "y": bottomSeriesColor = Color.Blue; break;
case "z": bottomSeriesColor = Color.OrangeRed; break;
case "z*": bottomSeriesColor = Color.Crimson; break;
}
// Ion series offsets. These offsets control where on the chart a particular ion series get displayed
double seriesTopLeftOffset = 0.2;
// Set the constants for starting the label paint
double topSeriesLeftPoint = 0.025;
double residueWidth = 0.5 / ((double) sequence.Length);
double topSeriesRightPoint = topSeriesLeftPoint + 0.5 - residueWidth;
double tickStart = residueWidth / 2.0;
// Process all the series except c and x
for (int i = 1; i <= sequence.Length; ++i)
{
double topSeriesFragmentMZ = 0.0;
double bottomSeriesFragmentMZ = 0.0;
switch (topSeries)
{
case "a": topSeriesFragmentMZ = fragmentation.a(i, ionSeriesChargeState); break;
case "b": topSeriesFragmentMZ = fragmentation.b(i, ionSeriesChargeState); break;
case "c": if (i < sequence.Length) topSeriesFragmentMZ = fragmentation.c(i, ionSeriesChargeState); break;
default: continue;
}
switch (bottomSeries)
{
case "x": if (i < sequence.Length) bottomSeriesFragmentMZ = fragmentation.x(i, ionSeriesChargeState); break;
case "y": bottomSeriesFragmentMZ = fragmentation.y(i, ionSeriesChargeState); break;
case "z": bottomSeriesFragmentMZ = fragmentation.z(i, ionSeriesChargeState); break;
case "z*": bottomSeriesFragmentMZ = fragmentation.zRadical(i, ionSeriesChargeState); break;
default: continue;
}
// Check if the top and bottom fragments have evidence
bool topSeriesHasMatch = false;
bool bottomSeriesHasMatch = false;
if (points != null)
{
topSeriesHasMatch = topSeriesFragmentMZ > 0 && findPointWithTolerance(points, topSeriesFragmentMZ, tolerance) > -1;
bottomSeriesHasMatch = bottomSeriesFragmentMZ > 0 && findPointWithTolerance(points, bottomSeriesFragmentMZ, tolerance) > -1;
}
// Build the label for the amino acid
// Add a text box in the middle of the left and right mz boundaries
StringBuilder label = new StringBuilder(sequence[i - 1].ToString());
// Figure out if any mods are there on this amino acid
double deltaMass = modifications[i - 1].monoisotopicDeltaMass();
// Round the mod mass and append it to the amino acid as a string
if (deltaMass > 0.0)
{
label.Append("+" + Math.Round(deltaMass));
}
else if (deltaMass < 0.0)
{
label.Append(Math.Round(deltaMass));
}
TextObj text = new TextObj(label.ToString(), topSeriesLeftPoint, seriesTopLeftOffset, CoordType.ChartFraction, AlignH.Center, AlignV.Center);
text.ZOrder = ZOrder.A_InFront;
text.FontSpec = new FontSpec("Arial", 13, Color.Black, true, false, false);
text.FontSpec.Border.IsVisible = false;
text.FontSpec.Fill.Color = Color.White;
text.IsClippedToChartRect = false;
list.Add(text);
if (topSeriesHasMatch)
{
// Paint the tick in the middle
LineObj tick = new LineObj(topSeriesColor, topSeriesLeftPoint + tickStart, (seriesTopLeftOffset - 0.05), topSeriesLeftPoint + tickStart, seriesTopLeftOffset);
tick.Location.CoordinateFrame = CoordType.ChartFraction;
tick.Line.Width = 2;
tick.IsClippedToChartRect = true;
list.Add(tick);
// Paint the hook
LineObj hook = new LineObj(topSeriesColor, topSeriesLeftPoint, (seriesTopLeftOffset - 0.08), topSeriesLeftPoint + tickStart, seriesTopLeftOffset - 0.05);
hook.Location.CoordinateFrame = CoordType.ChartFraction;
hook.Line.Width = 2;
hook.IsClippedToChartRect = true;
list.Add(hook);
}
if (bottomSeriesHasMatch)
{
// Paint the tick in the middle
LineObj tick = new LineObj(bottomSeriesColor, topSeriesRightPoint + tickStart, seriesTopLeftOffset, topSeriesRightPoint + tickStart, seriesTopLeftOffset + 0.05);
tick.Location.CoordinateFrame = CoordType.ChartFraction;
tick.Line.Width = 2;
tick.IsClippedToChartRect = true;
list.Add(tick);
// Paint the hook
LineObj hook = new LineObj(bottomSeriesColor, topSeriesRightPoint + tickStart, seriesTopLeftOffset + 0.05, topSeriesRightPoint + 2.0 * tickStart, seriesTopLeftOffset + 0.08);
hook.Location.CoordinateFrame = CoordType.ChartFraction;
hook.Line.Width = 2;
hook.IsClippedToChartRect = true;
list.Add(hook);
}
// Update the next paint point
topSeriesLeftPoint += residueWidth;
topSeriesRightPoint -= residueWidth;
}
}
///<summary>Adds user requested ion series to the fragmentation summary.</summary>
private void addFragmentationSummary(GraphObjList list, pwiz.MSGraph.MSPointList points, Peptide peptide, Fragmentation fragmentation, string topSeries, string bottomSeries)
{
///cutoff definition for neutral loss
double basePeakIntensity = 0;
double cutoff = 0;
foreach (var pointlist in points)
{
if (basePeakIntensity < pointlist.Y)
basePeakIntensity = pointlist.Y;
}
cutoff = basePeakIntensity * basePeakPercentage * 0.01;
///
int ionSeriesChargeState = min;
string sequence = peptide.sequence;
int sequenceLength = peptide.sequence.Length;
ModificationMap modifications = peptide.modifications();
// Select the color for the ion series.
Color topSeriesColor;
Color bottomSeriesColor;
switch (topSeries)
{
default: topSeriesColor = Color.Gray; break;
case "a": topSeriesColor = Color.YellowGreen; break;
case "b": topSeriesColor = Color.Red; break;
case "c": topSeriesColor = Color.Orange; break;
}
switch (bottomSeries)
{
default: bottomSeriesColor = Color.Gray; break;
case "x": bottomSeriesColor = Color.Green; break;
case "y": bottomSeriesColor = Color.Blue; break;
case "z": bottomSeriesColor = Color.OrangeRed; break;
case "z*": bottomSeriesColor = Color.Crimson; break;
}
// Ion series offsets. These offsets control where on the chart a particular ion series
// get displayed
//change the seriesTopLeftOffset value to 0.1 to make the label higher in the image.
//original is 0.031
double seriesTopLeftOffset = 0.05;
// Set the constants for starting the label paint
double topSeriesLeftPoint = 0.025;
//test and looks reasonalbe
double residueWidth = 0.031;
//double residueWidth = 0.25 / ((double)sequence.Length);
// Process all the series except c and x
//small block modified
//here is a big bug: if go like orignal code, then the y ions is just the like the order of b ions, which are not right.
//My modification is to seperate a/b/c and x/y/z ions, and then it will solve this problem.
//it seems works well.
///
#region Process a/b ions
//first we are going to touch only a/b ions
///
for (int i = 1; i <= sequence.Length; ++i)
{
double tickStart = residueWidth * 4 / 5.0;
double topSeriesFragmentMZ = 0.0;
//test neutral loss
//this block is to give clear clue for phospate loss
//exact number of phosphated amino acids are counted.
string Nseq = peptide.sequence.Substring(0, i);
char[] Nseqchars = Nseq.ToCharArray();
int Nphosmodi = 0;
for (int k = 0; k < i; k++)
{
if (Math.Round(modifications[k].monoisotopicDeltaMass()) == 80 && (Nseqchars[k] == 'S' || Nseqchars[k] == 'T' || Nseqchars[k] == 'Y'))
{
Nphosmodi++;
}
}
//correct the bug:
//when multiple charges allowed for fragmentation, then there is no tick thing showing the existance of the fragment
//what I did is: make top/bottomSeriesHasMatch true if there is fragment of any charges matched.
//bug fixed
bool topSeriesHasMatch = false;
for (int z = min; z <= max; z++)
{
switch (topSeries)
{
case "a": topSeriesFragmentMZ = fragmentation.a(i, z); break;
case "b": topSeriesFragmentMZ = fragmentation.b(i, z); break;
default: topSeriesFragmentMZ = 0.0; break;
}
// Check if the top and bottom fragments have evidence
if (points != null)
{
// Search index
int index = -1;
// Find the left mz value using a mass tolerance of 0.5 da.
index = points.FullLowerBound(topSeriesFragmentMZ - 0.5);
if (index != -1 && points.FullList[index].X <= (topSeriesFragmentMZ + 0.5))
{
topSeriesHasMatch = true;
break;
}
}
//test neutral loss
#region water loss a/b top series
if (waterLoss == true)
{
if (Nseq.Contains("S") || Nseq.Contains("T") || Nseq.Contains("E") || Nseq.Contains("D"))
{
// Check if the top and bottom fragments have evidence
if (points != null)
{
// Search index
int index = -1;
// Find the left mz value using a mass tolerance of 0.5 da.
index = points.FullLowerBound(topSeriesFragmentMZ - WATERMONOMASS/z - 0.5);
if (basePeakThresholding == false)
{
if (index != -1 && points.FullList[index].X <= (topSeriesFragmentMZ - WATERMONOMASS / z + 0.5))
{
topSeriesHasMatch = true;
break;
}
}
else
{
if (index != -1 && points.FullList[index].X <= (topSeriesFragmentMZ - WATERMONOMASS / z + 0.5) && points.FullList[index].Y >= cutoff)
{
topSeriesHasMatch = true;
break;
}
}
}
}
}
#endregion
//test neutral loss
#region ammonium loss a/b top series
if (ammoniumLoss == true)
{
if (Nseq.Contains("R") || Nseq.Contains("K") || Nseq.Contains("Q") || Nseq.Contains("N"))
{
if (points != null)
{
// Search index
int index = -1;
// Find the left mz value using a mass tolerance of 0.5 da.
index = points.FullLowerBound(topSeriesFragmentMZ - AMMONIUMMONOMASS / z - 0.5);
if (basePeakThresholding == false)
{
if (index != -1 && points.FullList[index].X <= (topSeriesFragmentMZ - AMMONIUMMONOMASS / z + 0.5))
{
topSeriesHasMatch = true;
break;
}
}
else
{
if (index != -1 && points.FullList[index].X <= (topSeriesFragmentMZ - AMMONIUMMONOMASS / z + 0.5) && points.FullList[index].Y > cutoff)
{
topSeriesHasMatch = true;
break;
}
}
}
}
}
#endregion
//test neutral loss
#region phosphate loss a/b top series
if (phosphateLoss == true)
{
//need to judge qualified number of AAs;
int minPhosphate = Math.Min(Nphosmodi, numPhosphate);
if (minPhosphate > 0)
{
for (int k = 1; k <= minPhosphate; k++)
{
//first need to judge if there are as many as phos AAs
//then if AA <= phos, then deal with AA;
//if AA > phos, then deal with phos.
if (points != null)
{
// Search index
int index = -1;
// Find the left mz value using a mass tolerance of 0.5 da.
index = points.FullLowerBound(topSeriesFragmentMZ - k * PHOSPHATEMONOMASS / z - 0.5);
if (basePeakThresholding == false)
{
if (index != -1 && points.FullList[index].X <= (topSeriesFragmentMZ - k * PHOSPHATEMONOMASS / z + 0.5))
{
topSeriesHasMatch = true;
break;
}
}
else
{
if (index != -1 && points.FullList[index].X <= (topSeriesFragmentMZ - k * PHOSPHATEMONOMASS / z + 0.5) && points.FullList[index].Y > cutoff)
{
topSeriesHasMatch = true;
break;
}
}
}
}
}
}
#endregion
}
// Build the label for the amino acid
// Add a text box in the middle of the left and right mz boundaries
StringBuilder label = new StringBuilder(sequence[i - 1].ToString());
// Figure out if any mods are there on this amino acid
double deltaMass = modifications[i - 1].monoisotopicDeltaMass();
string deltaMassString = deltaMass.ToString();
TextObj text = new TextObj(label.ToString(), topSeriesLeftPoint,
seriesTopLeftOffset, CoordType.ChartFraction, AlignH.Left, AlignV.Center);
text.ZOrder = ZOrder.E_BehindCurves;
text.FontSpec = new FontSpec("Arial", 13, Color.Black, true, false, false);
text.FontSpec.Border.IsVisible = false;
text.FontSpec.Fill.IsVisible = false;
text.IsClippedToChartRect = true;
list.Add(text);
SizeF size = text.LayoutArea;
float width = size.Width;
if (deltaMass > 0.0)
{
deltaMassString = "+" + Math.Round(deltaMass).ToString();
TextObj textModi = new TextObj(deltaMassString, topSeriesLeftPoint + 0.011,
seriesTopLeftOffset, CoordType.ChartFraction, AlignH.Left, AlignV.Center);
textModi.ZOrder = ZOrder.A_InFront;
textModi.FontSpec = new FontSpec("Arial", 8, Color.Black, true, false, false);
textModi.FontSpec.Border.IsVisible = false;
textModi.FontSpec.Fill.IsVisible = false ;
textModi.IsClippedToChartRect = true;
list.Add(textModi);
}
else if (deltaMass < 0.0)
{
deltaMassString = Math.Round(deltaMass).ToString();
TextObj textModi = new TextObj(deltaMassString, topSeriesLeftPoint + 0.01,
seriesTopLeftOffset, CoordType.ChartFraction, AlignH.Left, AlignV.Center);
textModi.ZOrder = ZOrder.B_BehindLegend;
textModi.FontSpec = new FontSpec("Arial", 8, Color.Black, true, false, false);
textModi.FontSpec.Border.IsVisible = false;
textModi.FontSpec.Fill.IsVisible = false ;
textModi.IsClippedToChartRect = true;
list.Add(textModi);
}
if (topSeriesHasMatch)
{
// Paint the tick in the middle
LineObj tick = new LineObj(topSeriesColor, topSeriesLeftPoint + tickStart, (seriesTopLeftOffset - 0.03), topSeriesLeftPoint + tickStart, seriesTopLeftOffset);
tick.Location.CoordinateFrame = CoordType.ChartFraction;
tick.Line.Width = 2;
tick.IsClippedToChartRect = true;
list.Add(tick);
// Paint the hook
LineObj hook = new LineObj(topSeriesColor, topSeriesLeftPoint, (seriesTopLeftOffset - 0.05), topSeriesLeftPoint + tickStart, seriesTopLeftOffset - 0.03);
hook.Location.CoordinateFrame = CoordType.ChartFraction;
hook.Line.Width = 2;
hook.IsClippedToChartRect = true;
list.Add(hook);
}
// Update the next paint point
topSeriesLeftPoint += residueWidth;
}
// Reset the series starting point
topSeriesLeftPoint = 0.025;
#endregion
///
#region Process y/z ions
//then for y/z ions:
//note: since the fragmentsummary starts the ticking/lining from left to right,
//so we need to adjust the starting point of bottoms series from the highest to lowest.
///
for (int i = sequence.Length; i >= 1; --i)
{
double tickStart = residueWidth / 5.0;
double bottomSeriesFragmentMZ = 0.0;
bool bottomSeriesHasMatch = false;
//test neutral
string Cseq = peptide.sequence.Substring(sequenceLength - i, i);
char[] seqchars = peptide.sequence.ToCharArray();
int Cphosmodi = 0;
for (int k = sequenceLength - i; k < sequenceLength; k++)
{
if (Math.Round(modifications[k].monoisotopicDeltaMass()) == 80 && (seqchars[k] == 'S' || seqchars[k] == 'T' || seqchars[k] == 'Y'))
{
Cphosmodi++;
}
}
for (int z = min; z <= max; z++)
{
switch (bottomSeries)
{
case "y": bottomSeriesFragmentMZ = fragmentation.y(i, z); break;
case "z": bottomSeriesFragmentMZ = fragmentation.z(i, z); break;
case "z*": bottomSeriesFragmentMZ = fragmentation.zRadical(i, z); break;
default: bottomSeriesFragmentMZ = 0.0; break;
}
// Check if the top and bottom fragments have evidence
if (points != null)
{
// Search index
int index = -1;
// Find the left mz value using a mass tolerance of 0.5 da.
index = points.FullLowerBound(bottomSeriesFragmentMZ - 0.5);
if (index != -1 && points.FullList[index].X <= (bottomSeriesFragmentMZ + 0.5))
{
bottomSeriesHasMatch = true;
break;
}
}
//test neutral loss
#region water loss y/z bottom series
if (waterLoss == true)
{
if (Cseq.Contains("S") || Cseq.Contains("T") || Cseq.Contains("E") || Cseq.Contains("D"))
{
if (points != null)
{
// Search index
int index = -1;
// Find the left mz value using a mass tolerance of 0.5 da.
index = points.FullLowerBound(bottomSeriesFragmentMZ - WATERMONOMASS / z - 0.5);
if (basePeakThresholding == false)
{
if (index != -1 && points.FullList[index].X <= (bottomSeriesFragmentMZ - WATERMONOMASS / z + 0.5))
{
bottomSeriesHasMatch = true;
break;
}
}
else
{
if (index != -1 && points.FullList[index].X <= (bottomSeriesFragmentMZ - WATERMONOMASS / z + 0.5) && points.FullList[index].Y > cutoff)
{
bottomSeriesHasMatch = true;
break;
}
}
}
}
}
#endregion
//test neutral loss
#region ammonium loss y/z bottom series
if (ammoniumLoss == true)
{
if (Cseq.Contains("R") || Cseq.Contains("K") || Cseq.Contains("Q") || Cseq.Contains("N"))
if (points != null)
{
// Search index
int index = -1;
// Find the left mz value using a mass tolerance of 0.5 da.
index = points.FullLowerBound(bottomSeriesFragmentMZ - AMMONIUMMONOMASS / z - 0.5);
if (basePeakThresholding == false)
{
if (index != -1 && points.FullList[index].X <= (bottomSeriesFragmentMZ - AMMONIUMMONOMASS / z + 0.5))
{
bottomSeriesHasMatch = true;
break;
}
}
else
{
if (index != -1 && points.FullList[index].X <= (bottomSeriesFragmentMZ - AMMONIUMMONOMASS / z + 0.5) && points.FullList[index].Y > cutoff)
{
bottomSeriesHasMatch = true;
break;
}
}
}
}
#endregion
//test neutral loss
#region phosphate loss y/z bottom series
if (phosphateLoss == true)
{
int minPhosphate = Math.Min(Cphosmodi, numPhosphate);
if (minPhosphate > 0)
{
for (int k = 1; k <= minPhosphate; k++)
{
if (points != null)
{
// Search index
int index = -1;
// Find the left mz value using a mass tolerance of 0.5 da.
index = points.FullLowerBound(bottomSeriesFragmentMZ - k * PHOSPHATEMONOMASS / z - 0.5);
if (basePeakThresholding == false)
{
if (index != -1 && points.FullList[index].X <= (bottomSeriesFragmentMZ - k * PHOSPHATEMONOMASS / z + 0.5))
{
bottomSeriesHasMatch = true;
break;
}
}
else
{
if (index != -1 && points.FullList[index].X <= (bottomSeriesFragmentMZ - k * PHOSPHATEMONOMASS / z + 0.5) && points.FullList[index].Y > cutoff)
{
bottomSeriesHasMatch = true;
break;
}
}
}
}
}
}
#endregion
}
if (bottomSeriesHasMatch)
{
// Paint the tick in the middle
LineObj tick = new LineObj(bottomSeriesColor, topSeriesLeftPoint - tickStart, seriesTopLeftOffset, topSeriesLeftPoint - tickStart, seriesTopLeftOffset + 0.03);
tick.Location.CoordinateFrame = CoordType.ChartFraction;
tick.Line.Width = 2;
tick.IsClippedToChartRect = true;
list.Add(tick);
// Paint the hook
LineObj hook = new LineObj(bottomSeriesColor, topSeriesLeftPoint - tickStart, seriesTopLeftOffset + 0.03, topSeriesLeftPoint + 2.0 * tickStart, seriesTopLeftOffset + 0.05);
hook.Location.CoordinateFrame = CoordType.ChartFraction;
hook.Line.Width = 2;
hook.IsClippedToChartRect = true;
list.Add(hook);
}
// Update the next paint point
topSeriesLeftPoint += residueWidth;
}
// Reset the series starting point
topSeriesLeftPoint = 0.025;
#endregion
///
#region Process x/c series
///
//the reason that I didn't split c/x as ab/yz, is that c/x doesn't have to deal with the termini. so good to go.
//disable the function of neutral losses
for (int i = 1; i < sequence.Length; ++i)
{
double tickStart = residueWidth *4 / 5.0;
double topSeriesFragmentMZ = 0.0;
double bottomSeriesFragmentMZ = 0.0;
// Check if the top and bottom fragments have evidence
bool topSeriesHasMatch = false;
bool bottomSeriesHasMatch = false;
///
//test neutral loss
//test neutral
//adjust the "i" accordingly, must let the C ions be left=>right.
//if it goes from left to right, then N series is i;
//C series is more tricky. Get a NTempSeq from 0 to sequenceLength-i; then get C from total.
///
string Nseq = peptide.sequence.Substring(0, i);
string NTempSeq = peptide.sequence.Substring(0, sequenceLength - i);
string Cseq = peptide.sequence.Substring(i, sequenceLength-i);
char[] Nseqchars = Nseq.ToCharArray();
char[] seqchars = peptide.sequence.ToCharArray();
char[] NTempSeqChars = NTempSeq.ToCharArray();
int Nphosmodi = 0;
int NTempPhosmodi = 0;
int Cphosmodi = 0;
int phosmodi = 0;
for (int k = 0; k < i; k++)
{
if (Math.Round(modifications[k].monoisotopicDeltaMass()) == 80 && (Nseqchars[k] == 'S' || Nseqchars[k] == 'T' || Nseqchars[k] == 'Y'))
{
Nphosmodi++;
}
}
for (int k = 0; k < sequenceLength - i; k++)
{
if (Math.Round(modifications[k].monoisotopicDeltaMass()) == 80 && (NTempSeqChars[k] == 'S' || NTempSeqChars[k] == 'T' || NTempSeqChars[k] == 'Y'))
{
NTempPhosmodi++;
}
}
for (int k = 0; k < sequenceLength; k++)
{
if (Math.Round(modifications[k].monoisotopicDeltaMass()) == 80 && (seqchars[k] == 'S' || seqchars[k] == 'T' || seqchars[k] == 'Y'))
{
phosmodi++;
}
}
Cphosmodi = phosmodi - NTempPhosmodi;
for (int z = min; z <= max; z++)
{
switch (topSeries)
{
case "c": topSeriesFragmentMZ = fragmentation.c(i, z); break;
default: topSeriesFragmentMZ = 0.0; break;
}
switch (bottomSeries)
{
case "x": bottomSeriesFragmentMZ = fragmentation.x(sequence.Length - i, z); break;
default: bottomSeriesFragmentMZ = 0.0; break;
}
if (points != null)
{
// Search index
int index = -1;
// Find the left mz value using a mass tolerance of 0.5 da.
index = points.FullLowerBound(topSeriesFragmentMZ - 0.5);
if (index != -1 && points.FullList[index].X <= (topSeriesFragmentMZ + 0.5))
topSeriesHasMatch = true;
// Reset the search index
index = -1;
// Find the left mz value using a mass tolerance of 0.5 da.
index = points.FullLowerBound(bottomSeriesFragmentMZ - 0.5);
if (index != -1 && points.FullList[index].X <= (bottomSeriesFragmentMZ + 0.5))
bottomSeriesHasMatch = true;
}
//disable neutral losses for c/x series
//test neutral loss
#region water loss c/x
if (waterLoss == true)
{
if (Nseq.Contains("S") || Nseq.Contains("T") || Nseq.Contains("E") || Nseq.Contains("D"))
{
if (points != null)
{
// Search index
int index = -1;
// Find the left mz value using a mass tolerance of 0.5 da.
index = points.FullLowerBound(topSeriesFragmentMZ - WATERMONOMASS / z - 0.5);
if (basePeakThresholding == false)
{
if (index != -1 && points.FullList[index].X <= (topSeriesFragmentMZ - WATERMONOMASS / z + 0.5))
topSeriesHasMatch = true;
}
else
{
if (index != -1 && points.FullList[index].X <= (topSeriesFragmentMZ - WATERMONOMASS / z + 0.5) && points.FullList[index].Y > cutoff)
topSeriesHasMatch = true;
}
}
}
if (Cseq.Contains("S") || Cseq.Contains("T") || Cseq.Contains("E") || Cseq.Contains("D"))
{
if (points != null)
{
// Search index
int index = -1;
// Find the left mz value using a mass tolerance of 0.5 da.
index = points.FullLowerBound(bottomSeriesFragmentMZ - WATERMONOMASS / z - 0.5);
if (basePeakThresholding == false)
{
if (index != -1 && points.FullList[index].X <= (bottomSeriesFragmentMZ - WATERMONOMASS / z + 0.5))
bottomSeriesHasMatch = true;
}
else
{
if (index != -1 && points.FullList[index].X <= (bottomSeriesFragmentMZ - WATERMONOMASS / z + 0.5) && points.FullList[index].Y > cutoff)
bottomSeriesHasMatch = true;
}
}
}
}
#endregion
////test neutral loss
#region ammonium loss c/x
if (ammoniumLoss == true)
{
if (points != null)
{
if (Nseq.Contains("R") || Nseq.Contains("K") || Nseq.Contains("Q") || Nseq.Contains("N"))
{
// Search index
int index = -1;
// Find the left mz value using a mass tolerance of 0.5 da.
index = points.FullLowerBound(topSeriesFragmentMZ - AMMONIUMMONOMASS / z - 0.5);
if (basePeakThresholding == false)
{
if (index != -1 && points.FullList[index].X <= (topSeriesFragmentMZ - AMMONIUMMONOMASS / z + 0.5))
topSeriesHasMatch = true;
}
else
{
if (index != -1 && points.FullList[index].X <= (topSeriesFragmentMZ - AMMONIUMMONOMASS / z + 0.5) && points.FullList[index].Y > cutoff)
topSeriesHasMatch = true;
}
}
if (Cseq.Contains("R") || Cseq.Contains("K") || Cseq.Contains("Q") || Cseq.Contains("N"))
{
// Reset the search index
int index = -1;
// Find the left mz value using a mass tolerance of 0.5 da.
index = points.FullLowerBound(bottomSeriesFragmentMZ - AMMONIUMMONOMASS / z - 0.5);
if (basePeakThresholding == false)
{
if (index != -1 && points.FullList[index].X <= (bottomSeriesFragmentMZ - AMMONIUMMONOMASS / z + 0.5))
bottomSeriesHasMatch = true;
}
else
{
if (index != -1 && points.FullList[index].X <= (bottomSeriesFragmentMZ - AMMONIUMMONOMASS / z + 0.5) && points.FullList[index].Y > cutoff)
bottomSeriesHasMatch = true;
}
}
}
}
#endregion
////test neutral loss
#region phosphate loss c/x
if (phosphateLoss == true)
{
int minPhosphate = Math.Min(Nphosmodi, numPhosphate);
if (minPhosphate > 0)
{
for (int k = 1; k <= minPhosphate; k++)
{
if (points != null)
{
// Search index
int index = -1;
// Find the left mz value using a mass tolerance of 0.5 da.
index = points.FullLowerBound(topSeriesFragmentMZ - k * PHOSPHATEMONOMASS / z - 0.5);
if (basePeakThresholding == false)
{
if (index != -1 && points.FullList[index].X <= (topSeriesFragmentMZ - k * PHOSPHATEMONOMASS / z + 0.5))
{
topSeriesHasMatch = true;
break;
}
}
else
{
if (index != -1 && points.FullList[index].X <= (topSeriesFragmentMZ - k * PHOSPHATEMONOMASS / z + 0.5) && points.FullList[index].Y > cutoff)
{
topSeriesHasMatch = true;
break;
}
}
}
}
}
minPhosphate = Math.Min(Cphosmodi, numPhosphate);
{
if (minPhosphate > 0)
{
for (int k = 1; k <= minPhosphate; k++)
{
if (points != null)
{
// Search index
int index = -1;
// Find the left mz value using a mass tolerance of 0.5 da.
index = points.FullLowerBound(bottomSeriesFragmentMZ - k * PHOSPHATEMONOMASS / z - 0.5);
if (basePeakThresholding == false)
{
if (index != -1 && points.FullList[index].X <= (bottomSeriesFragmentMZ - k * PHOSPHATEMONOMASS / z + 0.5))
{
bottomSeriesHasMatch = true;
break;
}
}
else
{
if (index != -1 && points.FullList[index].X <= (bottomSeriesFragmentMZ - k * PHOSPHATEMONOMASS / z + 0.5) && points.FullList[index].Y > cutoff)
{
bottomSeriesHasMatch = true;
break;
}
}
}
}
}
}
}
#endregion
}
// Build the label for the amino acid
// Add a text box in the middle of the left and right mz boundaries
StringBuilder label = new StringBuilder(sequence[i - 1].ToString());
// Figure out if any mods are there on this amino acid
double deltaMass = modifications[i - 1].monoisotopicDeltaMass();
string deltaMassString = deltaMass.ToString();
// Round the mod mass and append it to the amino acid as a string
//if (deltaMass > 0.0)
//{
// label.Append("+" + Math.Round(deltaMass));
//}
//else if (deltaMass < 0.0)
//{
// label.Append(Math.Round(deltaMass));
//}
TextObj text = new TextObj(label.ToString(), topSeriesLeftPoint,
seriesTopLeftOffset, CoordType.ChartFraction, AlignH.Left, AlignV.Center);
text.ZOrder = ZOrder.B_BehindLegend;
text.FontSpec = new FontSpec("Arial", 13, Color.Black, true, false, false);
text.FontSpec.Border.IsVisible = false;
text.FontSpec.Fill.IsVisible = false;
text.IsClippedToChartRect = true;
list.Add(text);
SizeF size = text.LayoutArea;
float width = size.Width;
if (deltaMass > 0.0)
{
deltaMassString = "+" + Math.Round(deltaMass).ToString();
TextObj textModi = new TextObj(deltaMassString, topSeriesLeftPoint + 0.01,
seriesTopLeftOffset, CoordType.ChartFraction, AlignH.Left, AlignV.Center);
textModi.ZOrder = ZOrder.B_BehindLegend;
textModi.FontSpec = new FontSpec("Arial", 8, Color.Black, true, false, false);
textModi.FontSpec.Border.IsVisible = false;
textModi.FontSpec.Fill.IsVisible = false;
textModi.IsClippedToChartRect = true;
list.Add(textModi);
}
else if (deltaMass < 0.0)
{
deltaMassString = Math.Round(deltaMass).ToString();
TextObj textModi = new TextObj(deltaMassString, topSeriesLeftPoint + 0.01,
seriesTopLeftOffset, CoordType.ChartFraction, AlignH.Left, AlignV.Center);
textModi.ZOrder = ZOrder.B_BehindLegend;
textModi.FontSpec = new FontSpec("Arial", 8, Color.Black, true, false, false);
textModi.FontSpec.Border.IsVisible = false;
textModi.FontSpec.Fill.IsVisible = false;
textModi.IsClippedToChartRect = true;
list.Add(textModi);
}
if (topSeriesHasMatch)
{
// Paint the tick in the middle
LineObj tick = new LineObj(topSeriesColor, topSeriesLeftPoint + tickStart, (seriesTopLeftOffset - 0.03), topSeriesLeftPoint + tickStart, seriesTopLeftOffset);
tick.Location.CoordinateFrame = CoordType.ChartFraction;
tick.Line.Width = 2;
tick.IsClippedToChartRect = true;
list.Add(tick);
// Paint the hook
LineObj hook = new LineObj(topSeriesColor, topSeriesLeftPoint, (seriesTopLeftOffset - 0.05), topSeriesLeftPoint + tickStart, seriesTopLeftOffset - 0.03);
hook.Location.CoordinateFrame = CoordType.ChartFraction;
hook.Line.Width = 2;
hook.IsClippedToChartRect = true;
list.Add(hook);
}
if (bottomSeriesHasMatch)
{
// Paint the tick in the middle
LineObj tick = new LineObj(bottomSeriesColor, topSeriesLeftPoint + tickStart, seriesTopLeftOffset, topSeriesLeftPoint + tickStart, seriesTopLeftOffset + 0.03);
tick.Location.CoordinateFrame = CoordType.ChartFraction;
tick.Line.Width = 2;
tick.IsClippedToChartRect = true;
list.Add(tick);
// Paint the hook
LineObj hook = new LineObj(bottomSeriesColor, topSeriesLeftPoint + tickStart, seriesTopLeftOffset + 0.03, topSeriesLeftPoint + 2.0 * tickStart, seriesTopLeftOffset + 0.05);
hook.Location.CoordinateFrame = CoordType.ChartFraction;
hook.Line.Width = 2;
hook.IsClippedToChartRect = true;
list.Add(hook);
}
// Update the next paint point
topSeriesLeftPoint += residueWidth;
}
#endregion
}