//this should be incremented at the time of successful acquistion and not if unsuccessful or cancelled
private void AcquisitionLoop(object sa, PointAcqusitionFinishedEventArgs e)
{
#if TRACE
if (e != null)
Console.WriteLine("AcquisitionLoop " + electrodeNumber.ToString("0") + " " +
(e.result == null) + " " + (e.Retry).ToString());
else
Console.WriteLine("AcquisitionLoop " + electrodeNumber.ToString("0"));
#endif
if (!executeSkip)
{
SystemSounds.Beep.Play();
if (electrodeNumber >= 0)
{
if (!e.Retry)
{
Triple t = DoCoordinateTransform(e.result);
string name = templateList[electrodeNumber].Name;
output1.Text = name + ": " + t.ToString();
XYZRecord xyz = new XYZRecord(name, t.v1, t.v2, t.v3);
if (electrodeLocations.Where(l => l.Name == name).Count() == 0) //assure unique electrode name
{
electrodeLocations.Add(xyz);
addPointToView(xyz);
Delete.IsEnabled = true;
}
else //this is a replacement
{
XYZRecord oldXYZ = electrodeLocations.Where(l => l.Name == name).First(); //get item to be replaced
int n = electrodeLocations.IndexOf(oldXYZ); //and replace old
electrodeLocations.Remove(oldXYZ); //remove
electrodeLocations.Insert(n, xyz); //replace with new
updateView(); //and redraw
}
electrodeNumber++; //on to next electrode location
}
}
else if (electrodeNumber == -3) //first entry
{
if (e != null && !e.Retry)
{
PN = e.result; //save Nasion
electrodeNumber++;
Redo.IsEnabled = true;
}
DoPrompting((e != null) && e.Retry);
((StylusAcquisition)sa).Start();
return;
}
else if (electrodeNumber == -2)
{
//save previous result
if (!e.Retry) //save Right preauricular
{
PR = e.result;
electrodeNumber++;
}
}
else //electrodeNumber == -1
{
//save previous result
if (!e.Retry) //save Left preauricular
{
PL = e.result;
CreateCoordinateTransform(); //calculate coordinate transformtion
electrodeNumber++;
drawAxes();
}
}
}
else //executing skip
{
electrodeNumber++;
executeSkip = false;
}
if (electrodeNumber >= numberOfElectrodes)
{
if (voice)
{
int n = electrodeLocations.Count;
prompt.ClearContent();
prompt.StartSentence();
prompt.AppendText("Completed acquisition of " + n.ToString("0") + " electrodes.");
prompt.EndSentence();
speak.Speak(prompt);
}
ElectrodeName.Text = "";
writeElectrodeFile();
return; //done
}
DoPrompting(e.Retry);
((StylusAcquisition)sa).Start();
return;
}
/// <summary>
/// Constructor for stream to read Electrode Position file, based on another stream;
/// reads in entire file, creating dictionary of eletrode positions by name and then
/// closing the stream
/// </summary>
/// <param name="str">Stream on which this stream is based</param>
public ElectrodeInputFileStream(Stream str)
{
if (str == null || !str.CanRead) return; //return empty Dictionary
XmlReaderSettings settings = new XmlReaderSettings();
settings.IgnoreWhitespace = true;
settings.IgnoreComments = true;
settings.IgnoreProcessingInstructions = true;
XmlReader xr;
string nameSpace;
string type;
try
{
xr = XmlReader.Create(str, settings);
if (xr.MoveToContent() != XmlNodeType.Element) throw new XmlException("Not a valid electrode file");
nameSpace = xr.NamespaceURI;
type = xr["Type", nameSpace];
xr.ReadStartElement("Electrodes");
}
catch (Exception x)
{
throw new Exception("ElectrodeFileStream: " + x.Message);
}
ElectrodeRecord etrRecord;
while (xr.Name == "Electrode")
{
try
{
if (type == "PhiTheta") etrRecord = new PhiThetaRecord();
else if (type == "XY") etrRecord = new XYRecord();
else if (type == "XYZ") etrRecord = new XYZRecord();
else throw new Exception("Invalid electrode type");
etrRecord.read(xr, nameSpace);
}
catch (XmlException e)
{
throw new Exception("ElectrodeFileStream: " + e.Message);
}
etrPositions.Add(etrRecord.Name, etrRecord);
}
xr.Close();
}
internal void addPointToView(XYZRecord xyz)
{
Triple t = new Triple(xyz.X, xyz.Y, xyz.Z);
t = projection.PerspectiveProject(t);
if (t.v3 <= 0) return;
Ellipse circle = new Ellipse();
circle.Stroke = System.Windows.Media.Brushes.Transparent;
int pink = Math.Min((int)(10 * Math.Pow(t.v3,0.75)), 180);
circle.Fill = new SolidColorBrush(System.Windows.Media.Color.FromRgb(255, (byte)pink, (byte)pink));
double r = Math.Max(100D / t.v3, 2.5D);
circle.Height = circle.Width = r * 2D;
Canvas.SetTop(circle, Draw.ActualHeight / 2 - viewScale * t.v2 - r);
Canvas.SetLeft(circle, Draw.ActualWidth / 2 + viewScale * t.v1 - r);
Canvas.SetZIndex(circle, (int)(-t.v3 * 100));
circle.ToolTip = new TextBlock(new Run(xyz.Name));
circle.MouseDown+=new MouseButtonEventHandler(circle_MouseDown);
Draw.Children.Add(circle);
}