public void AddPoint(clsPoint aPoint, int i = -1)
{
if (aPoint == null)
{
return;
}
if (i == -1)
{
myPoints.Add(aPoint.Copy());
}
else
{
myPoints.Insert(i, aPoint.Copy());
}
}
public clsArc(clsPoint aCentre, double aRadius, double anAngle1, double anAngle2, int aDirection)
{
Centre = aCentre.Copy();
Radius = aRadius;
Angle1 = anAngle1;
Angle2 = anAngle2;
Direction = aDirection;
}
public void InsertPoint(clsPoint aPoint, int anIndex)
{
if (anIndex == -1 | anIndex > myPoints.Count)
{
anIndex = myPoints.Count;
}
myPoints.Insert(anIndex, aPoint.Copy());
}
public static clsPoint ProjectPoint(clsPoint p1, clsLine l1)
{
double d = 0;
clsPoint pt1 = new clsPoint();
clsLine l2 = new clsLine();
d = Dist(p1, l1);
pt1 = p1.Copy();
l2 = (clsLine)l1.Normal();
l2.Normalise();
l2.Scale(-d);
pt1.Move(l2.P2.X, l2.P2.Y);
return(pt1);
}
public clsLine TangentToPointDown(clsPoint pt1)
{
//Goes on the downside of a transition down
double a;
double x;
clsLine l1;
if (pt1.x > Centre.x - mdlGeometry.myTol)
{
return(null);
}
a = Atan((Centre.y - pt1.y) / Abs((Centre.x - pt1.x)));
x = Radius / pt1.Dist(Centre);
if (x >= 1)
{
return(null);
}
a = Acos(x) - a;
l1 = new clsLine(pt1.Copy(), new clsPoint(Centre.x - Radius * Cos(a), Centre.y + Radius * Sin(a)));
return(l1);
}
public clsLine(clsPoint pt1, clsPoint pt2)
{
myP1 = pt1.Copy();
myP2 = pt2.Copy();
}
public clsCircle(clsPoint aCentre, double aRadius)
{
Centre = aCentre.Copy();
Radius = aRadius;
}