Vector3 calculate(float percentage)
{
var low = 0;
var high = points.Length - 2;
while (low < high)
{
var mid = (low + high) / 2;
if (points[mid + 1].percentageOfPathTraveled < percentage)
{
low = mid + 1;
}
else
{
high = mid;
}
}
var segmentPercentage =
(percentage - points[low].percentageOfPathTraveled)
/ (points[low + 1].percentageOfPathTraveled - points[low].percentageOfPathTraveled);
switch (method)
{
case InterpolationMethod.Linear:
return(Vector3.Lerp(
points[low].point, points[low + 1].point,
segmentPercentage
));
case InterpolationMethod.Cubic:
return(InterpolationUtils.cubicGetPt(
idx => points[idx].point, points.Length, low,
segmentPercentage,
closed
));
case InterpolationMethod.Hermite:
return(InterpolationUtils.hermiteGetPt(
idx => points[idx].point, points.Length, low,
segmentPercentage,
closed
));
case InterpolationMethod.CatmullRom:
return(InterpolationUtils.catmullRomGetPt(
idx => points[idx].point, points.Length, low,
segmentPercentage,
closed
));
default:
throw new ArgumentOutOfRangeException();
}
}
private void SetPathData()
{
if (Points == null)
{
return;
}
var points = new List <Point>();
foreach (var point in Points)
{
var pointProperties = point.GetType().GetProperties();
if (pointProperties.All(p => p.Name != "X") || pointProperties.All(p => p.Name != "Y"))
{
continue;
}
var x = (double)point.GetType().GetProperty("X").GetValue(point, new object[] { });
var y = (double)point.GetType().GetProperty("Y").GetValue(point, new object[] { });
points.Add(new Point(x, y));
}
if (points.Count <= 1)
{
return;
}
var Teeth_PathFigure = new PathFigure {
StartPoint = points.FirstOrDefault()
};
var Teeth_SegmentCollection = new PathSegmentCollection();
var bezierSegments = InterpolationUtils.InterpolatePointWithBezierCurves(points, true);
if (bezierSegments == null || bezierSegments.Count < 1)
{
foreach (var point in points.GetRange(1, points.Count - 1))
{
var lineSegment = new LineSegment {
Point = point
};
Teeth_SegmentCollection.Add(lineSegment);
}
}
else
{
foreach (var curveSeg in bezierSegments)
{
var segment = new BezierSegment
{
Point1 = curveSeg.FirstControlPoint,
Point2 = curveSeg.SecondControlPoint,
Point3 = curveSeg.EndPoint
};
Teeth_SegmentCollection.Add(segment);
}
}
Teeth_PathFigure.Segments = Teeth_SegmentCollection;
var Teeth_PathFigureCollection = new PathFigureCollection {
Teeth_PathFigure
};
var Teeth_PathGeometry = new PathGeometry {
Figures = Teeth_PathFigureCollection
};
path.Data = Teeth_PathGeometry;
}
void SetPathData()
{
if (Points == null)
{
return;
}
var points = new List <Point>();
foreach (var point in Points)
{
var pointProperties = point.GetType().GetProperties();
if (pointProperties.All(p => p.Name != "X") ||
pointProperties.All(p => p.Name != "Y"))
{
continue;
}
var x = (float)point.GetType().GetProperty("X").GetValue(point, new object[] { });
var y = (float)point.GetType().GetProperty("Y").GetValue(point, new object[] { });
points.Add(new Point(x, y));
}
if (points.Count <= 1)
{
return;
}
var myPathFigure = new PathFigure {
StartPoint = points.FirstOrDefault()
};
var myPathSegmentCollection = new PathSegmentCollection();
var beizerSegments = InterpolationUtils.InterpolatePointWithBeizerCurves(points, IsClosedCurve);
if (beizerSegments == null || beizerSegments.Count < 1)
{
//Add a line segment <this is generic for more than one line>
foreach (var point in points.GetRange(1, points.Count - 1))
{
var myLineSegment = new LineSegment {
Point = point
};
myPathSegmentCollection.Add(myLineSegment);
}
}
else
{
foreach (var beizerCurveSegment in beizerSegments)
{
var segment = new BezierSegment
{
Point1 = beizerCurveSegment.FirstControlPoint,
Point2 = beizerCurveSegment.SecondControlPoint,
Point3 = beizerCurveSegment.EndPoint
};
myPathSegmentCollection.Add(segment);
}
}
myPathFigure.Segments = myPathSegmentCollection;
var myPathFigureCollection = new PathFigureCollection {
myPathFigure
};
var myPathGeometry = new PathGeometry {
Figures = myPathFigureCollection
};
path.Data = myPathGeometry;
}
public Vector3Path(
InterpolationMethod method, bool closed, ImmutableArray <Vector3> positions, Option <Transform> relativeTo,
int pathResolution
)
{
this.method = method;
this.closed = closed;
this.relativeTo = relativeTo;
resolution = pathResolution;
points = segmentLengthRatios();
//Distance to the last node is the whole path distance
realLength = points[points.Length - 1].realDistanceToThisPoint;
constantSpeedTable = new ConstantSpeedTable(resolution, calculate);
// Returns list of Points with Vector3 coordinates,
// length and segment length ratios added to prev element ratio and
// distance from the start to this point
ImmutableArray <Point> segmentLengthRatios()
{
switch (method)
{
case InterpolationMethod.Linear: {
var builder = ImmutableArray.CreateBuilder <Point>(positions.Length);
var length = positions.Aggregate(0f, (node, current, idx) =>
idx == 0
? current
: current + Vector3.Distance(positions[idx - 1], node)
);
builder.Add(new Point(positions[0], 0f, 0f));
for (var idx = 1; idx < positions.Length; idx++)
{
var distanceBetweenPositions = Vector3.Distance(positions[idx - 1], positions[idx]);
var previousPoint = builder[idx - 1];
builder.Add(new Point(
positions[idx],
distanceBetweenPositions / length + previousPoint.percentageOfPathTraveled,
distanceBetweenPositions + previousPoint.realDistanceToThisPoint
));
}
return(builder.MoveToImmutable());
}
case InterpolationMethod.Hermite: {
return(getSegmentRatios(
positions,
(segmentIndex, percentageOfPath) => InterpolationUtils.hermiteGetPt(
idx => positions[idx], positions.Length, segmentIndex, percentageOfPath, closed
)));
}
case InterpolationMethod.Cubic: {
return(getSegmentRatios(
positions,
(segmentIndex, percentageOfPath) => InterpolationUtils.cubicGetPt(
idx => positions[idx], positions.Length, segmentIndex, percentageOfPath, closed
)));
}
case InterpolationMethod.CatmullRom: {
return(getSegmentRatios(
positions,
(segmentIndex, percentageOfPath) => InterpolationUtils.catmullRomGetPt(
idx => positions[idx], positions.Length, segmentIndex, percentageOfPath, closed
)));
}
default:
throw new ArgumentOutOfRangeException();
}
}
}
