// retourne l'arc de cercle sous forme d'une liste de point
// voir ArcDrawer pour l'algo
public PolygonRawData GetCurve()
{
PolygonRawData rawCurve = new PolygonRawData ();
Vector2 firstPoint2Add = _prevTangentPoint;
Vector2 lastPoint2Add = _nextTangentPoint;
Vector2 startVector = (_prevTangentPoint - _center).normalized;
Vector2 endVector = (_nextTangentPoint - _center).normalized;
Vector2 angleMeasureReference = Vector2.right;
if (_angleType == AngleType.Outside)
{
startVector = (_nextTangentPoint - _center).normalized;
endVector = (_prevTangentPoint - _center).normalized;
firstPoint2Add = _nextTangentPoint;
lastPoint2Add = _prevTangentPoint;
}
float startAngle;
if (Utils.Approximately (Vector3.Cross (startVector, angleMeasureReference).z, 0))
{
startAngle = Vector2.Dot (startVector, angleMeasureReference) < 0 ? 180 : 0;
}
else
{
Quaternion startRotation = Quaternion.FromToRotation (angleMeasureReference, startVector);
startAngle = startRotation.eulerAngles.z;
}
float endAngle;
if (Utils.Approximately (Vector3.Cross (endVector, angleMeasureReference).z, 0))
{
endAngle = Vector2.Dot (endVector, angleMeasureReference) < 0 ? 180 : 0;
}
else
{
Quaternion endRotation = Quaternion.FromToRotation (angleMeasureReference, endVector);
endAngle = endRotation.eulerAngles.z;
}
// round angle
startAngle = Mathf.Round(startAngle * 100) / 100;
endAngle = Mathf.Round(endAngle * 100) / 100;
//Debug.Log (startAngle + " " + endAngle);
if (startAngle > endAngle)
{
endAngle += 360;
}
startAngle += ANGLE_STEP;
float currentAngle = startAngle;
rawCurve.Add (firstPoint2Add);
while (currentAngle < endAngle)
{
float radAngle = currentAngle * Mathf.Deg2Rad;
Vector2 arcPoint = new Vector2 (Mathf.Cos (radAngle), Mathf.Sin (radAngle)) * _measuredRadius + _center;
if (_angleType == AngleType.Outside)
{
rawCurve.Insert (0, arcPoint);
}
else
{
rawCurve.Add (arcPoint);
}
currentAngle += ANGLE_STEP;
}
if (_angleType == AngleType.Outside)
{
rawCurve.Insert (0, lastPoint2Add);
}
else
{
rawCurve.Add (lastPoint2Add);
}
// if (_prevTangentPointMerged)
// {
// rawCurve.RemoveAt (0);
// }
//
// if (_nextTangentPointMerged)
// {
// rawCurve.RemoveAt (rawCurve.Count - 1);
// }
return rawCurve;
}
