//Radius line at ptFrom
public void GetRFrom(ClosedLine RFrom)
{
//debug zli
if (lCurveID == 27)
{
//int i = 0;
}
IPoint ptCenter = new Point();
GetCenterPT(ptCenter);
ClosedLine clTemp = new ClosedLine(ptCenter, ptFrom);
if (ptCenter.X == ptFrom.X)
{
clTemp.bVerticalLine = true;
clTemp.xIntercept = ptCenter.X;
}
else
{
RFrom.k = clTemp.k;
RFrom.b = clTemp.b;
RFrom.ptFrom.X = clTemp.ptFrom.X;
RFrom.ptFrom.Y = clTemp.ptFrom.Y;
RFrom.ptTo.X = clTemp.ptTo.X;
RFrom.ptTo.Y = clTemp.ptTo.Y;
}
}
//the long chord
public void GetLongChord(ClosedLine LongChord)
{
ClosedLine clTemp = new ClosedLine(this.ptFrom, this.ptTo);
if (ptFrom.X == ptTo.X)
{
clTemp.bVerticalLine = true;
clTemp.xIntercept = ptFrom.X;
}
else
{
LongChord.k = clTemp.k;
LongChord.b = clTemp.b;
LongChord.ptFrom.X = clTemp.ptFrom.X;
LongChord.ptFrom.Y = clTemp.ptFrom.Y;
LongChord.ptTo.X = clTemp.ptTo.X;
LongChord.ptTo.Y = clTemp.ptTo.Y;
}
}
//Radius line passing ptTo
public void GetRTo(ClosedLine RTo)
{
IPoint ptCenter = new Point();
GetCenterPT(ptCenter);
ClosedLine clTemp = new ClosedLine(ptCenter, ptTo);
//zhang revised
if (ptCenter.X == ptTo.X)
{
clTemp.bVerticalLine = true;
clTemp.xIntercept = ptCenter.X;
}
else
{
RTo.k = clTemp.k;
RTo.b = clTemp.b;
RTo.ptFrom.X = clTemp.ptFrom.X;
RTo.ptFrom.Y = clTemp.ptFrom.Y;
RTo.ptTo.X = clTemp.ptTo.X;
RTo.ptTo.Y = clTemp.ptTo.Y;
}
}