public void Add(GeoPoint from, GeoVector dir, double size, System.Drawing.Color color)
{
Line l = Line.Construct();
l.StartPoint = from;
l.EndPoint = from + size * dir.Normalized;
ColorDef cd = new ColorDef(color.Name, color);
l.ColorDef = cd;
toShow.Add(l);
GeoVector perp = dir ^ GeoVector.ZAxis;
if (Precision.IsNullVector(perp))
{
perp = dir ^ GeoVector.XAxis;
}
GeoPoint p1 = from + size * 0.9 * dir.Normalized + size * 0.1 * perp.Normalized;
GeoPoint p2 = from + size * 0.9 * dir.Normalized - size * 0.1 * perp.Normalized;
Line l1 = Line.Construct();
l1.StartPoint = l.EndPoint;
l1.EndPoint = p1;
l1.ColorDef = cd;
toShow.Add(l1);
Line l2 = Line.Construct();
l2.StartPoint = l.EndPoint;
l2.EndPoint = p2;
l2.ColorDef = cd;
toShow.Add(l2);
}
public bool Intersect(Plane other, out GeoPoint loc, out GeoVector dir)
{
dir = this.Normal ^ other.Normal;
if (Precision.IsNullVector(dir))
{
loc = GeoPoint.Origin;
dir = GeoVector.XAxis;
return(false);
}
GeoVector ldir = dir ^ Normal;
loc = other.Intersect(this.Location, ldir);
return(true);
}
/// <summary>
/// Aligns the <see cref="DirectionX"/> and <see cref="DirectionY"/> vectors of this plane
/// so that the projection of DirectionX of AlignTo and DircetionX of this plane are parallel.
/// If the two planes are parallel, the DirectionX and DirectionY of both planes will
/// also be parallel. The plane will not be changed. The <see cref="Location"/> of this
/// plane will be changed to a point closest to the location of AlignTo, if relocate
/// is true, otherwise the location remains unchanged.
/// </summary>
/// <param name="AlignTo">Plane to align to</param>
/// <param name="relocate">relocate this plane</param>
public void Align(Plane alignTo, bool relocate)
{
GeoVector x0 = ToGlobal(Project(alignTo.DirectionX));
if (Precision.IsNullVector(x0))
{ // die x-Achse von AlignTo steht senkrecht auf dieser Ebene
x0 = ToGlobal(Project(alignTo.DirectionY)); // das kann nicht auch noch senkrecht sein
}
x0.Norm();
GeoVector y0 = coordSys.Normal ^ x0;
coordSys = new CoordSys(coordSys.Location, x0, y0);
if (relocate)
{
coordSys.Location = ToGlobal(Project(alignTo.Location));
}
}
