/// <summary>
/// Transform accumulated pointer input to ink geometry
/// </summary>
/// <param name="defaultSize">Default size for SplineInterpolator and BrushApplier</param>
/// <param name="defaultScale">Default Scale for BrushApplier</param>
/// <param name="defaultOffset">Default Offset for BrushApplier</param>
/// <param name="defaultRotation">Default Rotation for BrushApplier</param>
/// <returns>Tuple containing added data (Item1) and predicted or preliminary data (Item2)</returns>
/// <remarks>Passes accumulated path segment (from PathProducer) through remaining stages of
/// the vector ink pipeline - Smoother, SplineProducer, SplineInterpolator, BrushApplier, ConvexHullChainProducer,
/// PolygonMerger and PolygonSimplifier</remarks>
public ProcessorResult <List <PolygonVertices> > GetPolygons()
{
var smoothPath = mSmoothingFilter.Add(mPathSegment.IsFirst, mPathSegment.IsLast, mPathSegment.AccumulatedAddition, mPathSegment.LastPrediction);
var spline = SplineProducer.Add(mPathSegment.IsFirst, mPathSegment.IsLast, smoothPath.Addition, smoothPath.Prediction);
var points = SplineInterpolator.Add(mPathSegment.IsFirst, mPathSegment.IsLast, spline.Addition, spline.Prediction);
var polys = BrushApplier.Add(mPathSegment.IsFirst, mPathSegment.IsLast, points.Addition, points.Prediction);
var hulls = ConvexHullChainProducer.Add(mPathSegment.IsFirst, mPathSegment.IsLast, polys.Addition, polys.Prediction);
var merged = mPolygonMerger.Add(mPathSegment.IsFirst, mPathSegment.IsLast, hulls.Addition, hulls.Prediction);
var simplified = PolygonSimplifier.Add(mPathSegment.IsFirst, mPathSegment.IsLast, merged.Addition, merged.Prediction);
mPathSegment.Reset();
return(simplified);
}
public void UpdatePipeline(PathPointLayout layout, Calculator calculator, VectorBrush brush)
{
bool layoutChanged = false;
if ((Layout == null) || (layout.ChannelMask != Layout.ChannelMask))
{
Layout = layout;
layoutChanged = true;
}
if (mPathProducer == null || calculator != mPathProducer.PathPointCalculator || layoutChanged)
{
mPathProducer = new PathProducer(Layout, calculator)
{
KeepAllData = true
};
}
if (mSmoothingFilter == null || layoutChanged)
{
mSmoothingFilter = new SmoothingFilter(Layout.Count)
{
KeepAllData = true
};
}
if (SplineProducer == null || layoutChanged)
{
SplineProducer = new SplineProducer(Layout)
{
KeepAllData = true
};
}
if (SplineInterpolator == null || layoutChanged)
{
SplineInterpolator = new CurvatureBasedInterpolator(Layout)
{
KeepAllData = true
};
}
if (BrushApplier == null || (brush != BrushApplier.Prototype) || layoutChanged)
{
BrushApplier = new BrushApplier(Layout, brush)
{
KeepAllData = true
};
}
if (ConvexHullChainProducer == null)
{
ConvexHullChainProducer = new ConvexHullChainProducer()
{
KeepAllData = true
};
}
if (mPolygonMerger == null)
{
mPolygonMerger = new PolygonMerger()
{
KeepAllData = true
};
}
if (PolygonSimplifier == null)
{
PolygonSimplifier = new PolygonSimplifier(0.1f)
{
KeepAllData = true
};
}
}
