public string Text2Path(String strText, string strCulture, bool LtoR, string strTypeFace, int nSize, Thickness masks)
{
// Set up the Culture
if (strCulture == "")
strCulture = "en-us";
System.Globalization.CultureInfo ci = new System.Globalization.CultureInfo(strCulture);
// Set up the flow direction
System.Windows.FlowDirection fd;
if (LtoR)
fd = FlowDirection.LeftToRight;
else
fd = FlowDirection.RightToLeft;
// Set up the font family from the parameter
FontFamily ff = new FontFamily(strTypeFace);
// Create the new typeface
System.Windows.Media.Typeface tf = new System.Windows.Media.Typeface(ff,
FontStyles.Normal, FontWeights.Normal, FontStretches.Normal);
// Create a formatted text object from the text,
// culture, flowdirection, typeface, size and black
FormattedText t = new FormattedText(strText, ci, fd, tf, nSize,
System.Windows.Media.Brushes.Black);
// Build a Geometry out of this
Geometry g = t.BuildGeometry(new Point(0, 0));
// Get the Path info from the geometry
PathGeometry p = g.GetFlattenedPathGeometry();
var x = nSize - masks.Left - masks.Right;
var y = nSize - masks.Top - masks.Bottom;
var size = new Size(x < 0 ? 0 : x, y < 0 ? 0 : y);
var rectv = new Rect(new Point(masks.Left, masks.Top), size);
RectangleGeometry rg = new RectangleGeometry(rectv);
var cg = new CombinedGeometry(p, rg);
cg.GeometryCombineMode = GeometryCombineMode.Intersect;
p = cg.GetFlattenedPathGeometry();
// Return the path info
return p.ToString();
}
/// <summary>
/// test collision between two Geometry object
/// </summary>
/// <param name="firstGeometry">first Geometry</param>
/// <param name="secondGeometry">second Geometry</param>
/// <returns>intersection Points</returns>
private Point[] collisionDetect(Geometry firstGeometry, Geometry secondGeometry)
{
Geometry firstPathGeometry = firstGeometry.GetWidenedPathGeometry(new Pen(Brushes.Black, 1.0)); //retrieve PathGeometry class, inherit from Geometry Class
Geometry secondPathGeometry = secondGeometry.GetWidenedPathGeometry(new Pen(Brushes.Black, 1.0));
CombinedGeometry combGeometry = new CombinedGeometry(GeometryCombineMode.Intersect, firstPathGeometry, secondPathGeometry); //inherit from Geometry
PathGeometry combPathGeometry = combGeometry.GetFlattenedPathGeometry();
/*code below retrieve all intersection points of 2 geometry*/
//combPathGeometry.Figures rappresenta una serie di piccoli segmenti geometrici che compongono la geometria
Point[] intersectionPoints = new Point[combPathGeometry.Figures.Count];
//ho inizializzato un'array di punti, però bisogna ancora trovare le coordinate di ognuno di essi
for (int i = 0; i < combPathGeometry.Figures.Count; i++)
{
//crea una piccola geometria a partire dal segmento trovato e ritorna il suo bounding box rettangolare
Rect fig = new PathGeometry(new PathFigure[] { combPathGeometry.Figures[i] }).Bounds;
//trova il punto centrale a partire da questo rettangolo
intersectionPoints[i] = new Point(fig.Left + fig.Width / 2.0, fig.Top + fig.Height / 2.0);
}
return intersectionPoints;
}
