private bool JudgeStrokeCount(List <SketchStroke> sample, List <SketchStroke> template)
{
this.SampleStrokeCount = sample.Count;
this.TemplateStrokeCount = template.Count;
if (this.SampleStrokeCount == this.TemplateStrokeCount)
{
this.StrokeToStrokeCorrespondenceSameCount = SketchFeatureExtraction.StrokeToStrokeCorrespondenceSameCount(sample, template);
return(true);
}
else
{
if (sample.Count < template.Count) // Concatenating strokes
{
this.ConcatenatingCorrespondence = SketchFeatureExtraction.StrokeToStrokeCorrespondenceConcatenating(sample, template);
foreach (List <int> templateIndices in this.ConcatenatingCorrespondence)
{
Debug.Write("Sample: ");
foreach (int templateIndex in templateIndices)
{
Debug.Write(templateIndex + ", ");
}
Debug.WriteLine("");
}
}
else // Broken strokes
{
this.BrokenStrokeCorrespondence = SketchFeatureExtraction.StrokeToStrokeCorrespondenceBroken(sample, template);
foreach (List <int> sampleIndices in this.BrokenStrokeCorrespondence)
{
Debug.Write("Template: ");
foreach (int sampleIndex in sampleIndices)
{
Debug.Write(sampleIndex + ", ");
}
Debug.WriteLine("");
}
}
return(false);
}
}
public static List <SketchStroke> ScaleSquare(List <SketchStroke> strokes, double size)
{
double width = SketchFeatureExtraction.Width(strokes);
double height = SketchFeatureExtraction.Height(strokes);
List <SketchStroke> newStrokes = new List <SketchStroke>();
foreach (SketchStroke stroke in strokes)
{
List <SketchPoint> newPoints = new List <SketchPoint>();
foreach (SketchPoint point in stroke.Points)
{
newPoints.Add(new SketchPoint(point.X * size / width, point.Y * size / height));
}
SketchStroke newStroke = new SketchStroke(newPoints, stroke.TimeStamp);
newStrokes.Add(newStroke);
}
return(newStrokes);
}
private bool JudgeIntersection(List <SketchStroke> sample, List <SketchStroke> template)
{
if (!IsCorrectStrokeCount)
{
return(false);
}
this.SampleIntersectionMatrix = SketchFeatureExtraction.IntersectionMatrix(sample, StrokeToStrokeCorrespondenceSameCount, WrongDirectionStrokeIndices);
this.TemplateIntersectionMatrix = SketchFeatureExtraction.IntersectionMatrix(template);
for (int i = 0; i < sample.Count; i++)
{
for (int j = 0; j < sample.Count; j++)
{
if (SampleIntersectionMatrix[i, j] != TemplateIntersectionMatrix[i, j])
{
return(false);
}
}
}
return(true);
}
public static List <SketchStroke> TranslateCentroid(List <SketchStroke> strokes, SketchPoint origin)
{
return(Translate(strokes, origin, SketchFeatureExtraction.Centroid(strokes)));
}