internal static double GetPathFigureLength(PathFigure pathFigure)
{
if (pathFigure == null)
return 0;
var isAlreadyFlattened = pathFigure.Segments.All(pathSegment => (pathSegment is PolyLineSegment) || (pathSegment is LineSegment));
var pathFigureFlattened = isAlreadyFlattened ? pathFigure : pathFigure.GetFlattenedPathFigure();
double length = 0;
var pt1 = pathFigureFlattened.StartPoint;
foreach (var pathSegment in pathFigureFlattened.Segments)
{
if (pathSegment is LineSegment)
{
var pt2 = ((LineSegment)pathSegment).Point;
length += (pt2 - pt1).Length;
pt1 = pt2;
}
else if (pathSegment is PolyLineSegment)
{
var pointCollection = ((PolyLineSegment)pathSegment).Points;
foreach (var pt2 in pointCollection)
{
length += (pt2 - pt1).Length;
pt1 = pt2;
}
}
}
return length;
}
private double CalculateLength(PathFigure path)
{
PathFigure p = path.GetFlattenedPathFigure(0.1, ToleranceType.Relative);
double lenght = 0;
Point start = p.StartPoint;
for (int i = 0; i < p.Segments.Count; i++)
{
if (p.Segments[i] is LineSegment)
{
LineSegment seg = (p.Segments[i] as LineSegment);
lenght += Point.Subtract(start, seg.Point).Length;
start = seg.Point;
}
else if (p.Segments[i] is PolyLineSegment)
{
PolyLineSegment seg = (p.Segments[i] as PolyLineSegment);
for (int j = 0; j < seg.Points.Count; j++)
{
lenght += Point.Subtract(start, seg.Points[j]).Length;
start = seg.Points[j];
}
}
}
return lenght;
}
public static double GetPathFigureLength(PathFigure pathFigure)
{
double result;
if (pathFigure == null)
{
result = 0.0;
}
else
{
bool flag = true;
foreach (PathSegment current in pathFigure.Segments)
{
if (!(current is PolyLineSegment) && !(current is LineSegment))
{
flag = false;
break;
}
}
PathFigure pathFigure2 = flag ? pathFigure : pathFigure.GetFlattenedPathFigure();
double num = 0.0;
Point point = pathFigure2.StartPoint;
foreach (PathSegment current in pathFigure2.Segments)
{
if (current is LineSegment)
{
Point point2 = (current as LineSegment).Point;
num += (point2 - point).Length;
point = point2;
}
else if (current is PolyLineSegment)
{
PointCollection points = (current as PolyLineSegment).Points;
foreach (Point point2 in points)
{
num += (point2 - point).Length;
point = point2;
}
}
}
result = num;
}
return result;
}
//static void OnTextPropertyChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args)
//{
// (obj as TextOnPathBase).OnTextPropertyChanged(args);
//}
//protected abstract void OnTextPropertyChanged(DependencyPropertyChangedEventArgs args);
//static void OnPathPropertyChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args)
//{
// (obj as TextOnPathBase).OnPathPropertyChanged(args);
//}
//protected abstract void OnPathPropertyChanged(DependencyPropertyChangedEventArgs args);
// Utility method
public static double GetPathFigureLength(PathFigure pathFigure)
{
if (pathFigure == null)
return 0;
bool isAlreadyFlattened = true;
foreach (PathSegment pathSegment in pathFigure.Segments)
{
if (!(pathSegment is PolyLineSegment) && !(pathSegment is LineSegment))
{
isAlreadyFlattened = false;
break;
}
}
PathFigure pathFigureFlattened = isAlreadyFlattened ?
pathFigure : pathFigure.GetFlattenedPathFigure();
double length = 0;
Point pt1 = pathFigureFlattened.StartPoint;
foreach (PathSegment pathSegment in pathFigureFlattened.Segments)
{
if (pathSegment is LineSegment)
{
Point pt2 = (pathSegment as LineSegment).Point;
length += (pt2 - pt1).Length;
pt1 = pt2;
}
else if (pathSegment is PolyLineSegment)
{
PointCollection pointCollection = (pathSegment as PolyLineSegment).Points;
foreach (Point pt2 in pointCollection)
{
length += (pt2 - pt1).Length;
pt1 = pt2;
}
}
}
return length;
}
public static PolygonClosedD2D GetGlyphPolygon(PathFigure figure, bool reverseY, double deviationAngleInDegrees, double deviationAbsolute)
{
PolyBezierSegment polyBezierSegment;
PolyLineSegment polyLineSegment;
var flattenedFigure = figure.GetFlattenedPathFigure();
if (flattenedFigure.Segments.Count != 1)
throw new NotSupportedException();
var points = (flattenedFigure.Segments[0] as PolyLineSegment).Points.Select(p => ToAltaxo(p, reverseY)).ToArray();
var sharpPoints = new HashSet<PointD2D>();
Point prevEndPoint;
Vector prevEndVector;
Vector startVector, endVector;
Point endPoint;
GetStartAndEndVector(figure.StartPoint, figure.Segments[0], out prevEndPoint, out startVector, out prevEndVector);
for (int i = 1; i <= figure.Segments.Count; ++i)
{
if (i == figure.Segments.Count && prevEndPoint != figure.StartPoint) // if the end point of the very last segment is not the same than the start point of the figure
{
// Consider the straight line segment from the prevPoint to figure.StartPoint in the case that the startpoint and the endpoint of the figure are different
startVector = endVector = figure.StartPoint - prevEndPoint;
if (!IsSmoothJoint(startVector, prevEndVector))
sharpPoints.Add(ToAltaxo(prevEndPoint, reverseY));
prevEndVector = endVector;
prevEndPoint = figure.StartPoint;
}
PathSegment seg = figure.Segments[i % figure.Segments.Count];
GetStartAndEndVector(prevEndPoint, seg, out endPoint, out startVector, out endVector);
if (!IsSmoothJoint(startVector, prevEndVector))
sharpPoints.Add(ToAltaxo(prevEndPoint, reverseY));
if (null != (polyLineSegment = (seg as PolyLineSegment)))
{
var preP = prevEndPoint;
for (int j = 0; j < polyLineSegment.Points.Count - 1; ++j)
{
if (!IsSmoothJoint(polyLineSegment.Points[j] - preP, polyLineSegment.Points[j + 1] - polyLineSegment.Points[j]))
sharpPoints.Add(ToAltaxo(polyLineSegment.Points[j], reverseY));
preP = polyLineSegment.Points[j];
}
prevEndPoint = polyLineSegment.Points[polyLineSegment.Points.Count - 1];
}
if (null != (polyBezierSegment = (seg as PolyBezierSegment)))
{
for (int j = 2; j < polyBezierSegment.Points.Count - 1; j += 3)
if (!IsSmoothJoint(polyBezierSegment.Points[j] - polyBezierSegment.Points[j - 1], polyBezierSegment.Points[j + 1] - polyBezierSegment.Points[j]))
sharpPoints.Add(ToAltaxo(polyBezierSegment.Points[j], reverseY));
}
prevEndVector = endVector;
prevEndPoint = endPoint;
}
return new PolygonClosedD2D(points, sharpPoints);
}
