public List<IPrimitiveConditionData> GenerateRules(List<TouchPoint2> points)
{
List<IPrimitiveConditionData> returnList = new List<IPrimitiveConditionData>();
// Do all the possible combinations
for (int j = 0; j < points.Count - 1; j++)
{
//If it's a blob, leave it
if (!points[j].isFinger)
{
returnList.Add(null);
continue;
}
var stylusPoints1 = TrigonometricCalculationHelper.removeRedundancy(points[j].Stroke.StylusPoints);
if (stylusPoints1.Count < 4) // It's a point
{
returnList.Add(null);
continue;
}
ValidSetOfTouchPoints line1 = ValidateLine(points[j]);
if (line1.Count > 0)
{
for (int i = j + 1; i < points.Count; i++)
{
//Check to see if it is a point
var stylusPoints2 = TrigonometricCalculationHelper.removeRedundancy(points[i].Stroke.StylusPoints);
if (stylusPoints2.Count == 0)
continue;
// check to see if the two sets of points are lines
ValidSetOfTouchPoints line2 = ValidateLine(points[i]);
if (line2.Count == 0)
continue;
// Considering that they are two lines, the angle will only be check if their edges are nearby
if (!linesTouch(stylusPoints1, stylusPoints2))
{
returnList.Add(null);
continue;
}
// Calculate slope of each line represented by the two sets of touch points
// as the final of a line is usually fuzzy, get the middle points(1/4,3/4), that have a more fixed pattern
int avg1 = stylusPoints1.Count;
int avg2 = stylusPoints2.Count;
double set1Angle = TrigonometricCalculationHelper.GetSlopeBetweenPoints(stylusPoints1[avg1 / 4], stylusPoints1[avg1 * 3 / 4]);
double set2Angle = TrigonometricCalculationHelper.GetSlopeBetweenPoints(stylusPoints2[avg2 / 4], stylusPoints2[avg2 * 3 / 4]);
double angularDiff = (set1Angle - set2Angle) * 180 / 3.14;
if (angularDiff < 0)
angularDiff = 180 + angularDiff;
if (angularDiff > 180)
angularDiff = angularDiff - 180;
AngleBetween result = new AngleBetween();
result.Gesture1 = (j + 1) + "";
result.Gesture2 = (i + 1) + "";
result.Min = angularDiff;
returnList.Add(result);
}
}
}
return returnList;
}
public void Init(IPrimitiveConditionData ruleData)
{
_data = ruleData as AngleBetween;
}