public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
Debug.Assert(values != null && values.Length == 10, "EdgeRouteToPathConverter should have 10 parameters: pos (1,2), size (3,4) of source; pos (5,6), size (7,8) of target; routeInformation (9); showArrows (10).");
#region Get the inputs
//get the position of the source
var sourcePos = new Point
{
X = (values[0] != DependencyProperty.UnsetValue ? (double)values[0] : 0.0),
Y = (values[1] != DependencyProperty.UnsetValue ? (double)values[1] : 0.0)
};
//get the size of the source
var sourceSize = new Size
{
Width = (values[2] != DependencyProperty.UnsetValue ? (double)values[2] : 0.0),
Height = (values[3] != DependencyProperty.UnsetValue ? (double)values[3] : 0.0)
};
//get the position of the target
var targetPos = new Point
{
X = (values[4] != DependencyProperty.UnsetValue ? (double)values[4] : 0.0),
Y = (values[5] != DependencyProperty.UnsetValue ? (double)values[5] : 0.0)
};
//get the size of the target
var targetSize = new Size
{
Width = (values[6] != DependencyProperty.UnsetValue ? (double)values[6] : 0.0),
Height = (values[7] != DependencyProperty.UnsetValue ? (double)values[7] : 0.0)
};
//get the route informations
Point[] routeInformation = (values[8] != DependencyProperty.UnsetValue ? (Point[])values[8] : null);
//get showArrows
Boolean showArrows = (values[9] != DependencyProperty.UnsetValue ? (Boolean)values[9] : true);
#endregion
bool hasRouteInfo = routeInformation != null && routeInformation.Length > 0;
/// Create the path
Point p1 = GraphConverterHelper.CalculateAttachPoint(sourcePos, sourceSize, (hasRouteInfo ? routeInformation[0] : targetPos));
/// Create the arrows
Point p2 = GraphConverterHelper.CalculateAttachPoint(targetPos, targetSize, (hasRouteInfo ? routeInformation[routeInformation.Length - 1] : sourcePos));
var segments = new PathSegment[1 + (hasRouteInfo ? routeInformation.Length : 0)];
if (hasRouteInfo)
{
///append route points
for (int i = 0; i < routeInformation.Length; i++)
{
segments[i] = new LineSegment(routeInformation[i], true);
}
}
Point pLast = (hasRouteInfo ? routeInformation[routeInformation.Length - 1] : p1);
Vector v = pLast - p2;
v = v / v.Length * 5;
Vector n = new Vector(-v.Y, v.X) * 0.3;
if (showArrows == true)
{
segments[segments.Length - 1] = new LineSegment(p2 + v, true);
return(new PathFigureCollection(2)
{
new PathFigure(p1, segments, false),
new PathFigure(p2,
new PathSegment[]
{
new LineSegment(p2 + v - n, true),
new LineSegment(p2 + v + n, true)
}, true)
});
}
else
{
segments[segments.Length - 1] = new LineSegment(p2, true);
return(new PathFigureCollection(2)
{
new PathFigure(p1, segments, false),
/// Add weight. Pass the "middle point" of the edge
//EdgeWeight(new Point( p1.X + 0.5*(p2.X-p1.X), p1.Y + 0.5*(p2.Y-p1.Y)), n)
});
}
}
public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
var pfc = new PathFigureCollection(2);
try
{
Debug.Assert(values != null && values.Length == 9, "EdgeRouteToPathConverter should have 9 parameters: pos (1,2), size (3,4) of source; pos (5,6), size (7,8) of target; routeInformation (9).");
#region Get the inputs
//get the position of the source
Point sourcePos = new Point()
{
X = (values[0] != DependencyProperty.UnsetValue ? (double)values[0] : 0.0),
Y = (values[1] != DependencyProperty.UnsetValue ? (double)values[1] : 0.0)
};
//get the size of the source
Size sourceSize = new Size()
{
//Width = 0.0,
//Height = 0.0
Width = (values[2] != DependencyProperty.UnsetValue ? (double)values[2] : 0.0),
Height = (values[3] != DependencyProperty.UnsetValue ? (double)values[3] : 0.0)
};
//get the position of the target
Point targetPos = new Point()
{
X = (values[4] != DependencyProperty.UnsetValue ? (double)values[4] : 0.0),
Y = (values[5] != DependencyProperty.UnsetValue ? (double)values[5] : 0.0)
};
//get the size of the target
Size targetSize = new Size()
{
//Width = 0.0,
//Height = 0.0
Width = (values[6] != DependencyProperty.UnsetValue ? (double)values[6] : 0.0),
Height = (values[7] != DependencyProperty.UnsetValue ? (double)values[7] : 0.0)
};
//get the route informations
Point[] routeInformation = (values[8] != DependencyProperty.UnsetValue ? (Point[])values[8] : null);
#endregion
bool hasRouteInfo = routeInformation != null && routeInformation.Length > 0;
//
// Create the path
//
Point p1 = GraphConverterHelper.CalculateAttachPoint(sourcePos, sourceSize, (hasRouteInfo ? routeInformation[0] : targetPos));
Point p2 = GraphConverterHelper.CalculateAttachPoint(targetPos, targetSize, (hasRouteInfo ? routeInformation[routeInformation.Length - 1] : sourcePos));
PathSegment[] segments = new PathSegment[1 + (hasRouteInfo ? routeInformation.Length : 0)];
if (hasRouteInfo)
{
//append route points
for (int i = 0; i < routeInformation.Length; i++)
{
segments[i] = new LineSegment(routeInformation[i], true);
}
}
Point pLast = (hasRouteInfo ? routeInformation[routeInformation.Length - 1] : p1);
Vector v = pLast - p2;
v = v / v.Length * 6;
Vector n = new Vector(-v.Y, v.X) * 0.5;
segments[segments.Length - 1] = new LineSegment(p2 + v, true);
pfc.Add(new PathFigure(p1, segments, false));
var arrow = new PathFigure(p2,
new PathSegment[] {
new LineSegment(p2 + v - n, true),
new LineSegment(p2 + v + n, true)
}, true);
pfc.Add(arrow);
}
catch (Exception)
{
System.Windows.MessageBox.Show("grr");
}
var geo = new PathGeometry(pfc);
return(geo);
}
public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
Debug.Assert(values != null && values.Length == 9, "EdgeRouteToPathConverter should have 9 parameters: pos (1,2), size (3,4) of source; pos (5,6), size (7,8) of target; routeInformation (9).");
#region Get the inputs
//get the position of the source
var sourcePos = new Point()
{
X = (values[0] != DependencyProperty.UnsetValue ? (double)values[0] : 0.0),
Y = (values[1] != DependencyProperty.UnsetValue ? (double)values[1] : 0.0)
};
//get the size of the source
var sourceSize = new Size()
{
Width = (values[2] != DependencyProperty.UnsetValue ? (double)values[2] : 0.0),
Height = (values[3] != DependencyProperty.UnsetValue ? (double)values[3] : 0.0)
};
//get the position of the target
var targetPos = new Point()
{
X = (values[4] != DependencyProperty.UnsetValue ? (double)values[4] : 0.0),
Y = (values[5] != DependencyProperty.UnsetValue ? (double)values[5] : 0.0)
};
//get the size of the target
var targetSize = new Size()
{
Width = (values[6] != DependencyProperty.UnsetValue ? (double)values[6] : 0.0),
Height = (values[7] != DependencyProperty.UnsetValue ? (double)values[7] : 0.0)
};
//get the route informations
var routeInformation = (values[8] != DependencyProperty.UnsetValue ? (Point[])values[8] : null);
#endregion
var hasRouteInfo = routeInformation != null && routeInformation.Length > 0;
//+-----------------
//+ Create the path
//+-----------------
//Point p1 = GraphConverterHelper.CalculateAttachPoint( sourcePos, sourceSize, (hasRouteInfo ? routeInformation[0] : targetPos) );
//Point p2 = GraphConverterHelper.CalculateAttachPoint( targetPos, targetSize, (hasRouteInfo ? routeInformation[routeInformation.Length - 1] : sourcePos) );
//Point p1 = GraphConverterHelper.CalculateStartAttachPoint( sourcePos, (hasRouteInfo ? routeInformation[0] : targetPos),
// sourceSize, targetSize );
//Point p2 = GraphConverterHelper.CalculateEndAttachPoint( sourcePos, (hasRouteInfo ? routeInformation[routeInformation.Length - 1] : targetPos),
// sourceSize, targetSize );
var p1 = GraphConverterHelper.CalculateParallelAttachPoint(sourcePos, (hasRouteInfo ? routeInformation[0] : targetPos),
sourceSize, targetSize);
var p2 = GraphConverterHelper.CalculateParallelAttachPoint(targetPos, (hasRouteInfo ? routeInformation[routeInformation.Length - 1] : sourcePos),
targetSize, targetSize, firstPosition: p1, p1Size: sourceSize);
var segments = new PathSegment[1 + (hasRouteInfo ? routeInformation.Length : 0)];
if (hasRouteInfo)
{
//append route points
for (var i = 0; i < routeInformation.Length; i++)
{
segments[i] = new LineSegment(routeInformation[i], true);
}
}
var pLast = (hasRouteInfo ? routeInformation[routeInformation.Length - 1] : p1);
//+ ------------------- Size of the arrow -------------------
var v = pLast - p2;
v = v / v.Length * 5;
var n = new Vector(-v.Y, v.X) * 0.3;
segments[segments.Length - 1] = new LineSegment(p2 + v, true);
var pfc = new PathFigureCollection(2)
{
//+ ------------------- This is the line -------------------
new PathFigure(p1, segments, false),
//+ ------------------- This is the arrow -------------------
new PathFigure(p2, new PathSegment[]
{
new LineSegment(p2 + v - n, true),
new LineSegment(p2 + v + n, true)
}, true)
};
return(pfc);
}