private void PaintBackConnection( Graphics g,
Pen pen,
Point srcPos,
Point tgtPos,
ConnectionPoints srcConData,
ConnectionPoints tgtConData)
{
// Line is described by srcPos,a,b,c,d,tgtPos
Point a,b,c,d;
float gradient;
int length;
int xDelta, yDelta;
//----- Point a.
if(tgtPos.X<=srcPos.X)
{
gradient = (float)Math.Min(1.0, 0.2F + (srcConData.lowerLeft*0.2F));
length = (int)(backConnectionLegLength + (backConnectionLegLength*srcConData.lowerLeft*0.05));
xDelta = -(int)(length * (1.0F - gradient));
yDelta = (int)(length * gradient);
}
else
{
gradient = (float)Math.Min(1.0, 0.2F + (srcConData.lowerRight*0.2F)); //0.23
length = (int)(backConnectionLegLength + (backConnectionLegLength*srcConData.lowerRight*0.05));
xDelta = (int)(length * (1.0F - gradient));
yDelta = (int)(length * gradient);
}
a = new Point(srcPos.X+xDelta, srcPos.Y+yDelta);
//----- Point b.
if(tgtPos.X<=srcPos.X)
{
length = (int)(backConnectionLegLength/4.0F + (backConnectionLegLength*srcConData.lowerLeft*0.6));
b = new Point(a.X-length,a.Y);
srcConData.lowerLeft++;
}
else
{
length = (int)(backConnectionLegLength/4.0F + (backConnectionLegLength*srcConData.lowerRight*0.6));
b = new Point(a.X+length,a.Y);
srcConData.lowerRight++;
}
//----- Point d.
if(srcPos.X>tgtPos.X)
{
gradient = (float)Math.Min(1.0, 0.2F + (tgtConData.upperRight*0.2F));
length = (int)(backConnectionLegLength + (backConnectionLegLength*srcConData.upperRight*0.05));
xDelta = (int)(length * (1.0F - gradient));
yDelta = -(int)(length * gradient);
}
else
{
gradient = (float)Math.Min(1.0, 0.2F + (tgtConData.upperLeft*0.2F));
length = (int)(backConnectionLegLength + (backConnectionLegLength*srcConData.upperLeft*0.05));
xDelta = -(int)(length * (1.0F - gradient));
yDelta = -(int)(length * gradient);
}
d = new Point(tgtPos.X+xDelta, tgtPos.Y+yDelta);
//----- Point c.
if(srcPos.X>tgtPos.X)
{
length = (int)(backConnectionLegLength/4.0F + (backConnectionLegLength*tgtConData.upperRight*0.6));
c = new Point(d.X+length,d.Y);
tgtConData.upperRight++;
}
else
{
length = (int)(backConnectionLegLength/4.0F + (backConnectionLegLength*srcConData.upperLeft*0.6));
c = new Point(d.X-length,d.Y);
tgtConData.upperLeft++;
}
//----- Paint the lines.
g.DrawLines(pen, new Point[]{srcPos,a,b,c,d,tgtPos});
// g.DrawLine(pen, srcPos, a);
// g.DrawLine(pen, a, b);
// g.DrawLine(pen, b, c);
// g.DrawLine(pen, d, c);
// g.DrawLine(pen, tgtPos, d);
}
private void PaintBackConnection(Graphics g,
Pen pen,
Point srcPos,
Point tgtPos,
ConnectionPoints srcConData,
ConnectionPoints tgtConData)
{
// Line is described by srcPos,a,b,c,d,tgtPos
Point a, b, c, d;
float gradient;
int length;
int xDelta, yDelta;
//----- Point a.
if (tgtPos.X <= srcPos.X)
{
gradient = (float)Math.Min(1.0, 0.2F + (srcConData.lowerLeft * 0.23F));
length = (int)(backConnectionLegLength + (backConnectionLegLength * srcConData.lowerLeft * 0.05));
xDelta = -(int)(length * (1.0F - gradient));
yDelta = (int)(length * gradient);
}
else
{
gradient = (float)Math.Min(1.0, 0.2F + (srcConData.lowerRight * 0.23F));
length = (int)(backConnectionLegLength + (backConnectionLegLength * srcConData.lowerRight * 0.05));
xDelta = (int)(length * (1.0F - gradient));
yDelta = (int)(length * gradient);
}
a = new Point(srcPos.X + xDelta, srcPos.Y + yDelta);
//----- Point b.
if (tgtPos.X <= srcPos.X)
{
length = (int)(backConnectionLegLength / 4.0F + (backConnectionLegLength * srcConData.lowerLeft * 0.6));
b = new Point(a.X - length, a.Y);
srcConData.lowerLeft++;
}
else
{
length = (int)(backConnectionLegLength / 4.0F + (backConnectionLegLength * srcConData.lowerRight * 0.6));
b = new Point(a.X + length, a.Y);
srcConData.lowerRight++;
}
//----- Point d.
if (srcPos.X > tgtPos.X)
{
gradient = (float)Math.Min(1.0, 0.2F + (tgtConData.upperRight * 0.23F));
length = (int)(backConnectionLegLength + (backConnectionLegLength * srcConData.upperRight * 0.05));
xDelta = (int)(length * (1.0F - gradient));
yDelta = -(int)(length * gradient);
}
else
{
gradient = (float)Math.Min(1.0, 0.2F + (tgtConData.upperLeft * 0.23F));
length = (int)(backConnectionLegLength + (backConnectionLegLength * srcConData.upperLeft * 0.05));
xDelta = -(int)(length * (1.0F - gradient));
yDelta = -(int)(length * gradient);
}
d = new Point(tgtPos.X + xDelta, tgtPos.Y + yDelta);
//----- Point c.
if (srcPos.X > tgtPos.X)
{
length = (int)(backConnectionLegLength / 4.0F + (backConnectionLegLength * tgtConData.upperRight * 0.6));
c = new Point(d.X + length, d.Y);
tgtConData.upperRight++;
}
else
{
length = (int)(backConnectionLegLength / 4.0F + (backConnectionLegLength * srcConData.upperLeft * 0.6));
c = new Point(d.X - length, d.Y);
tgtConData.upperLeft++;
}
//----- Paint the lines.
g.DrawLines(pen, new Point[] { srcPos, a, b, c, d, tgtPos });
// g.DrawLine(pen, srcPos, a);
// g.DrawLine(pen, a, b);
// g.DrawLine(pen, b, c);
// g.DrawLine(pen, d, c);
// g.DrawLine(pen, tgtPos, d);
}
