public static CLienTracable GetLien(Point pt1, Point pt2, EModeSortieLien modeSortie)
{
if (modeSortie == EModeSortieLien.Straight)
{
return(new CLienTracable(pt1, pt2));
}
List <CSegmentDroite> lstSegments = new List <CSegmentDroite>();
double fAngle = Math.PI / 2;
if (pt1.X == pt2.X)
{
fAngle = Math.PI / 2 * Math.Sign(pt2.Y * pt1.Y);
}
else
{
fAngle = Math.Atan((double)((pt2.Y - pt1.Y)) / (double)((pt2.X - pt1.X)));
}
if (modeSortie == EModeSortieLien.Automatic)
{
if (Math.Abs(fAngle) < Math.PI / 4)
{
modeSortie = EModeSortieLien.Horizontal;
}
else
{
modeSortie = EModeSortieLien.Vertical;
}
}
if (modeSortie == EModeSortieLien.Horizontal)
{
lstSegments.Add(new CSegmentDroite(pt1, new Point(pt2.X, pt1.Y)));
if (pt2.Y != pt1.Y)
{
lstSegments.Add(new CSegmentDroite(new Point(pt2.X, pt1.Y), pt2));
}
}
else
{
lstSegments.Add(new CSegmentDroite(pt1, new Point(pt1.X, pt2.Y)));
if (pt2.X != pt1.X)
{
lstSegments.Add(new CSegmentDroite(new Point(pt1.X, pt2.Y), pt2));
}
}
CLienTracable lien = new CLienTracable();
lien.AddPoint(lstSegments[0].Point1);
foreach (CSegmentDroite segment in lstSegments)
{
lien.AddPoint(segment.Point2);
}
return(lien);
}
public static CLienTracable GetLienPourLier(Rectangle rct1, Rectangle rct2, EModeSortieLien mode)
{
CLienTracable lien = GetLien(
new Point(rct1.Left + rct1.Width / 2, rct1.Top + rct1.Height / 2),
new Point(rct2.Left + rct2.Width / 2, rct2.Top + rct2.Height / 2),
mode);
List <CSegmentDroite> segments = new List <CSegmentDroite>();
IEnumerable <Point> pts = lien.Points;
for (int n = 1; n < pts.Count(); n++)
{
segments.Add(new CSegmentDroite(pts.ElementAt(n - 1), pts.ElementAt(n)));
}
int nRect = 0;
while (true)
{
if (segments.Count == 0)
{
return(lien);
}
bool bIntersect = false;
Rectangle rct = nRect == 0 ? rct1 : rct2;
CSegmentDroite segment = nRect == 0 ? segments[0] : segments[segments.Count() - 1];
Point[] ptsDeRect = new Point[] {
new Point(rct.Left, rct.Top),
new Point(rct.Right, rct.Top),
new Point(rct.Right, rct.Bottom),
new Point(rct.Left, rct.Bottom)
};
for (int n = 0; n < 4; n++)
{
CSegmentDroite seg = new CSegmentDroite(ptsDeRect[n],
ptsDeRect[(n + 1) % 4]);
Point pt = new Point(0, 0);
if (segment.GetIntersectionPoint(seg, ref pt))
{
if (nRect == 0)
{
segment.Point1 = pt;
}
else
{
segment.Point2 = pt;
}
bIntersect = true;
nRect++;
break;
}
}
if (nRect == 1 && !bIntersect)
{
//Pas d'intersection
List <CSegmentDroite> lst = new List <CSegmentDroite>(segments);
lst.RemoveAt(lst.Count - 1);
segments = new List <CSegmentDroite>(lst);
}
if (nRect > 1)
{
break;
}
if (nRect == 0)
{
break;
}
}
lien = new CLienTracable();
lien.AddPoint(segments[0].Point1);
for (int n = 0; n < segments.Count(); n++)
{
lien.AddPoint(segments[n].Point2);
}
return(lien);
}
//--------------------------------------------
public void AddLien(CLienTracable lien)
{
m_listeLiensDessines.Add(lien);
}
//----------------------------------------
public CLienTracable(CLienTracable lienSource)
{
m_listePoints.AddRange(lienSource.m_listePoints);
}