public bool IsOnShortLine(clsPoint pt1, double aTol = 0, bool excludeEnds = false)
{
clsLine l1 = default(clsLine);
clsLine l2 = default(clsLine);
double d = 0;
if (aTol == 0)
{
aTol = mdlGeometry.myTol;
}
if (Abs(pt1.Dist(this)) > aTol)
{
return(false);
}
l1 = new clsLine(P1, pt1);
l2 = Copy();
l2.Normalise();
d = l1.Dot(l2);
if (d < -aTol)
{
return(false);
}
if (d > Length + aTol)
{
return(false);
}
if (excludeEnds && (P1 == pt1 | P2 == pt1))
{
return(false);
}
return(true);
}
public double Dist(clsLine l1)
{
clsLine l2 = default(clsLine);
clsLine l3 = default(clsLine);
l2 = l1.Normal();
l3 = new clsLine(l1.P1, this);
return(Abs(l2.Dot(l3)));
}
public static double Dist(clsPoint p1, clsLine l1)
{
//+ve for outside the wall, left handed; Also, +ve for above straight.
clsLine l2 = new clsLine();
clsLine l3 = new clsLine();
l2 = (clsLine)l1.Normal();
l3 = new clsLine(l1.P1, p1);
return(l2.Dot(l3));
}
public double VerticalHeight(clsPoint pt1)
{
//Returns the height of the line where is passes over p1
clsLine l1 = default(clsLine);
clsLine l2 = default(clsLine);
double d = 0;
double d1 = 0;
double d2 = 0;
l1 = new clsLine(P1.X, P1.Y, P2.X, P2.Y);
if (l1.IsOnLine(pt1) == false)
{
return(0);
}
d1 = l1.Length;
l1.Normalise();
l2 = new clsLine(l1.P1, pt1);
d2 = l1.Dot(l2);
d = d2 / d1;
return(P1.Z + (P2.Z - P1.Z) * d);
}
public bool IsOnHalfLine(clsPoint pt1, double aTol = 0)
{
clsLine l1 = default(clsLine);
clsLine l2 = default(clsLine);
double d = 0;
if (aTol == 0)
{
aTol = mdlGeometry.myTol;
}
if (Abs(pt1.Dist(this)) > aTol)
{
return(false);
}
l1 = new clsLine(P1, pt1);
l2 = Copy();
l2.Normalise();
d = l1.Dot(l2);
if (d < -aTol)
{
return(false);
}
return(true);
}
