public bool HitsCircle(Circle3d circle, double tmin, double tmax, ref RayHit3d hit)
{
var dc = circle.Normal.Dot(Direction);
var dw = circle.Normal.Dot(circle.Center - Origin);
// If parallel to plane
if (dc == 0.0)
{
return(false);
}
var t = dw / dc;
if (!ComputeHit(t, tmin, tmax, ref hit))
{
return(false);
}
if (V3d.Distance(hit.Point, circle.Center) > circle.Radius)
{
hit.Point = V3d.NaN;
hit.T = tmax;
return(false);
}
return(true);
}
public Circle3d GetCircle(double height)
{
//circle along axis
var dirLength = height;
var radius = GetRadius(height);
var dir = Direction.Normalized * dirLength;
Circle3d circle = new Circle3d(Origin + dir, dir.Normalized, radius);
return(circle);
}
public ObliqueCone3d(V3d o, Circle3d c)
{
Origin = o;
Circle = c;
}
public Circle3d(Circle3d circle)
{
Center = circle.Center;
Normal = circle.Normal;
Radius = circle.Radius;
}
public static bool ApproximateEquals(this Circle3d a, Circle3d b) => ApproximateEquals(a, b, Constant <double> .PositiveTinyValue);
public static bool ApproximateEquals(this Circle3d a, Circle3d b, double tolerance) => ApproximateEquals(a.Center, b.Center, tolerance) && ApproximateEquals(a.Normal, b.Normal, tolerance) && ApproximateEquals(a.Radius, b.Radius, tolerance);
public bool Equals(Circle3d other) => Center.Equals(other.Center) && Normal.Equals(other.Normal) && Radius.Equals(other.Radius);
public static ObliqueCone3d Parse(string s)
{
var x = s.NestedBracketSplitLevelOne().ToArray();
return(new ObliqueCone3d(V3d.Parse(x[0]), Circle3d.Parse(x[1])));
}