bool evaluateTangent(InferredCurve inferredCurve, RelatedCurve curve)
{
//double angle = Math.Atan((inferredCurve.FromPoint.Y - inferredCurve.ToPoint.Y) / (inferredCurve.FromPoint.X - inferredCurve.ToPoint.X));
//double length = ((IProximityOperator)inferredCurve.FromPoint).ReturnDistance(inferredCurve.ToPoint);
//the proposed arc chord:
ILine line = new Line() { FromPoint = inferredCurve.FromPoint, ToPoint = inferredCurve.ToPoint };
//half the delta of the proposed curve would be:
double halfdelta = toDegrees(Math.Asin(line.Length / 2 / curve.Radius));
IVector3D chordVector = new Vector3D() as IVector3D;
chordVector.PolarSet(line.Angle, 0, 1);
foreach (RelatedLine tangent in inferredCurve.TangentLines)
{
IVector3D tangentVector = new Vector3D() as IVector3D;
tangentVector.PolarSet(ToRadians(tangent.Angle), 0, 1);
bool dMatch = false;
double dVectDiff = toDegrees(Math.Acos(chordVector.DotProduct(tangentVector)));
if (tangent.Orientation == RelativeOrientation.From_To)
dMatch = Math.Abs(dVectDiff - halfdelta) < CurveByInferenceSettings.Instance.MaxTangentLineAngleInDegrees;
else if (tangent.Orientation == RelativeOrientation.To_From)
dMatch = Math.Abs(dVectDiff + halfdelta) < CurveByInferenceSettings.Instance.MaxTangentLineAngleInDegrees;
else if (tangent.Orientation == RelativeOrientation.From_From)
dMatch = Math.Abs(dVectDiff + halfdelta) < CurveByInferenceSettings.Instance.MaxTangentLineAngleInDegrees;
else if (tangent.Orientation == RelativeOrientation.To_To)
dMatch = Math.Abs(dVectDiff - halfdelta) < CurveByInferenceSettings.Instance.MaxTangentLineAngleInDegrees;
if (dMatch)
{
inferredCurve.InferredRadius = inferredCurve.TangentCurves[0].Radius;
inferredCurve.InferredCenterpointID = inferredCurve.TangentCurves[0].CenterpointID;
return true;
}
}
return false;
}
bool evaluateParallelCurves(InferredCurve inferredCurve, RelatedCurve curve)
{
bool bHasConfirmer = false;
foreach (RelatedCurve dd in inferredCurve.ParallelCurves)
{
if (Math.Abs(dd.Radius - curve.Radius) < CurveByInferenceSettings.Instance.MaxRadiusDifference)
{
bHasConfirmer = true;
break;
}
}
if (bHasConfirmer)
{
inferredCurve.InferredRadius = inferredCurve.TangentCurves[0].Radius;
inferredCurve.InferredCenterpointID = inferredCurve.TangentCurves[0].CenterpointID;
return true;
}
return false;
}
