public static TaskEventCollection?Collect(BrainVisionPackage filesContent)
{
IHeaderFileContentVer1 headerContent = filesContent.HeaderFileContent;
IMarkerFileContentVer1?markerContent = filesContent.MarkerFileContent;
List <MarkerInfo>?markers = markerContent?.GetMarkers();
if (markers == null)
{
return(null);
}
double samplingFrequency = Common.GetSamplingFrequencyFromSamplingInterval(headerContent.SamplingInterval !.Value);
TaskEventCollection taskEvents = new TaskEventCollection();
foreach (MarkerInfo marker in markers)
{
TaskEvent taskEvent = new TaskEvent(
//REQUIRED
onset: marker.Position / samplingFrequency,
duration: marker.Length / samplingFrequency)
{
//OPTIONAL
Sample = marker.Position + 1, // I suppose bids uses 1-based sample position. This info is not present in the official bids documentations
TrialType = marker.Type,
Value = !string.IsNullOrEmpty(marker.Description) ? marker.Description : Defs.NotAvailable,
};
taskEvents.Add(taskEvent);
}
return(taskEvents);
}
public static void Save(StreamWriter writer, IMarkerFileContentVer1 content)
{
List <MarkerInfo>?markers = content.GetMarkers();
if (markers != null)
{
writer.WriteLine();
writer.WriteLine(IniFormat.FormatSectionName(Definitions.GetSectionName(Definitions.Section.MarkerInfos) !));
FileSaverCommon.WriteCommentBlock(writer, content.InlinedComments.BelowMarkerInfosSection);
for (int mk = 0; mk < markers.Count; ++mk)
{
MarkerInfo marker = markers[mk];
string keyName = Invariant($"{Definitions.KeyMkPlaceholder}{mk + 1}");
string keyValue = ConvertMarkerInfoToString(marker);
string line = IniFormat.FormatKeyValueLine(keyName, keyValue);
writer.WriteLine(line);
}
}
}