private Tuple <Term, Term[]> IncorporateRadiusConstraint(TSnapped snappedPrimitive, Tuple <Term, Term[]> result)
{
if (snappedPrimitive.LeftSilhouette != null && snappedPrimitive.RightSilhouette != null)
{
var sil0 = SegmentApproximator.ApproximateSegment(snappedPrimitive.LeftSilhouette.Points);
var sil1 = SegmentApproximator.ApproximateSegment(snappedPrimitive.RightSilhouette.Points);
var axis2d = Get2DVector(snappedPrimitive.AxisResult);
var sil0Top = GetForwardPoint(sil0, axis2d);
var sil0Bot = GetForwardPoint(sil0, -axis2d);
var sil1Top = GetForwardPoint(sil1, axis2d);
var sil1Bot = GetForwardPoint(sil1, -axis2d);
var expectedTop = 0.5 * Math.Min(
sil0Top.DistanceFromSegment(sil1.Item1, sil1.Item2),
sil1Top.DistanceFromSegment(sil0.Item1, sil0.Item2));
var expectedBottom = 0.5 * Math.Min(
sil0Bot.DistanceFromSegment(sil1.Item1, sil1.Item2),
sil1Bot.DistanceFromSegment(sil0.Item1, sil0.Item2));
var radiusTerm = GetRadiusSoftConstraint(snappedPrimitive, expectedTop, expectedBottom);
var newTargetFunc = 0.95 * radiusTerm + 0.05 * result.Item1;
return(Tuple.Create(newTargetFunc, result.Item2));
}
else
{
return(result);
}
}
private Tuple <Term, Term[]> TwoSilhouettesNoFeatures(TSnapped snappedPrimitive, ISet <FeatureCurve> annotated)
{
var sil0 = SegmentApproximator.ApproximateSegment(snappedPrimitive.LeftSilhouette.Points);
var sil1 = SegmentApproximator.ApproximateSegment(snappedPrimitive.RightSilhouette.Points);
var axis2d = Get2DVector(snappedPrimitive.AxisResult);
var sil0Top = GetForwardPoint(sil0, axis2d);
var sil0Bot = GetForwardPoint(sil0, -axis2d);
var sil1Top = GetForwardPoint(sil1, axis2d);
var sil1Bot = GetForwardPoint(sil1, -axis2d);
var topFit = ProjectionFit.Compute(
snappedPrimitive.TopFeatureCurve, new Point[] { sil0Top, sil1Top });
var botFit = ProjectionFit.Compute(
snappedPrimitive.BottomFeatureCurve, new Point[] { sil0Bot, sil1Bot });
if (annotated.Contains(snappedPrimitive.TopFeatureCurve))
{
topFit = Enumerable.Empty <Term>();
}
if (annotated.Contains(snappedPrimitive.BottomFeatureCurve))
{
botFit = Enumerable.Empty <Term>();
}
var objective = TermUtils.SafeSum(topFit.Concat(botFit));
var constraints = new Term[] { snappedPrimitive.Axis.NormSquared - 1 };
return(Tuple.Create(objective, constraints));
}
private Tuple <Term, Term[]> TwoSilhouettesSingleFeature(TSnapped snappedPrimitive, ISet <FeatureCurve> annotated)
{
var sil0 = SegmentApproximator.ApproximateSegment(snappedPrimitive.LeftSilhouette.Points);
var sil1 = SegmentApproximator.ApproximateSegment(snappedPrimitive.RightSilhouette.Points);
var axis2d = Get2DVector(snappedPrimitive.AxisResult);
var isTopSnapped = snappedPrimitive.TopFeatureCurve.SnappedTo != null;
var isBottomSnapped = snappedPrimitive.BottomFeatureCurve.SnappedTo != null;
var snappedFeatureCurve = isTopSnapped ? snappedPrimitive.TopFeatureCurve : snappedPrimitive.BottomFeatureCurve;
var unsnappedFeatureCurve = isTopSnapped ? snappedPrimitive.BottomFeatureCurve : snappedPrimitive.TopFeatureCurve;
var sil0Top = GetForwardPoint(sil0, axis2d);
var sil0Bot = GetForwardPoint(sil0, -axis2d);
var sil1Top = GetForwardPoint(sil1, axis2d);
var sil1Bot = GetForwardPoint(sil1, -axis2d);
var sil0Far = isTopSnapped ? sil0Bot : sil0Top;
var sil1Far = isTopSnapped ? sil1Bot : sil1Top;
var featureProj = ProjectionFit.Compute(snappedFeatureCurve);
var farProj = Enumerable.Repeat(EndpointsProjectionFit(unsnappedFeatureCurve, sil0Far, sil1Far), 1);
var objective = TermUtils.SafeSum(new Term[] { TermUtils.SafeAvg(featureProj), TermUtils.SafeAvg(farProj) });
var constraints = new Term[] { snappedPrimitive.Axis.NormSquared - 1 };
return(Tuple.Create(objective, constraints));
}
private Tuple <Term, Term[]> TwoSilhouettesSingleFeature(TSnapped snappedPrimitive, ISet <FeatureCurve> annotated)
{
var sil0 = SegmentApproximator.ApproximateSegment(snappedPrimitive.LeftSilhouette.Points);
var sil1 = SegmentApproximator.ApproximateSegment(snappedPrimitive.RightSilhouette.Points);
var snappedFeatureCurve = snappedPrimitive.TopCurve == null ? snappedPrimitive.BottomFeatureCurve : snappedPrimitive.TopFeatureCurve;
var unsnappedFeatureCurve = snappedPrimitive.TopCurve == null ? snappedPrimitive.TopFeatureCurve : snappedPrimitive.BottomFeatureCurve;
var sil0Far = GetFarPoint(sil0, snappedFeatureCurve.SnappedTo);
var sil1Far = GetFarPoint(sil1, snappedFeatureCurve.SnappedTo);
var featureProj = ProjectionFit(snappedFeatureCurve);
var farProj = ProjectionFit(unsnappedFeatureCurve, new Point[] { sil0Far, sil1Far });
if (annotated.Contains(unsnappedFeatureCurve))
{
farProj = Enumerable.Empty <Term>();
}
var objective = TermUtils.SafeSum(featureProj.Concat(farProj));
var constraints = new Term[] { snappedPrimitive.Axis.NormSquared - 1 };
return(Tuple.Create(objective, constraints));
}