/// <summary>
/// When the user manually triggers recognition, label everything
/// in the sketch as a wire.
/// </summary>
void Recognizer.recognize(Sketch.Sketch sketch, Sketch.Stroke[] selectedStrokes, bool userTriggered)
{
// Only operate on user triggered recognition events
if (!userTriggered)
{
return;
}
lastLabeledSketchArgs = new RecognizerEventArgs();
foreach (Sketch.Stroke selectedStroke in selectedStrokes)
{
if (selectedStroke == null)
{
// The recognition triggerer left empty elements in
// the selected strokes array. Here we just ignore
// the lack of a stroke.
continue;
}
// Get the corresponding stroke in the sketch to make sure we label
// the right substrokes
Sketch.Stroke sketchStroke = sketch.GetStroke((System.Guid)selectedStroke.XmlAttrs.Id);
if (sketchStroke == null)
{
// The selected stroke is not in the sketch.
// In some scenarios, we might want to throw an exception,
// but in this case we just skip the stroke
continue;
}
// Now label the substrokes
Sketch.Substroke[] selectedSubstrokes = sketchStroke.Substrokes;
foreach (Sketch.Substroke selectedSubstroke in selectedSubstrokes)
{
if (selectedSubstroke.GetLabels().Length > 0)
{
continue;
}
// Apply wire label or error label using simulated error rate
if (randobj.NextDouble() < UIConstants.ErrorLabelErrorRate)
{
sketch.AddLabel(selectedSubstroke, UIConstants.ErrorLabel, 1.0);
}
else
{
sketch.AddLabel(selectedSubstroke, UIConstants.WireLabel, 1.0);
}
}
}
lastLabeledSketchArgs.recognitionResults[0] = sketch;
lastLabeledSketchArgs.eventTime = DateTime.Now;
lastLabeledSketchArgs.userTriggered = true;
RecognitionEvent(this, lastLabeledSketchArgs);
}