|
public IntersectionWith ( Line line ) : |
||
| line | Line | |
| Результат | ||
public double DistanceTo(Line line)
{
Line perpendicular = line.Perpendicular(this);
PointD intersection = line.IntersectionWith(perpendicular);
return DistanceTo(intersection);
}
public double DistanceTo(Line line)
{
Line perpendicular = line.Perpendicular(this);
PointD intersection = line.IntersectionWith(perpendicular);
return(DistanceTo(intersection));
}
public static Line ProjectionLine(Puck p, Line reference)
{
PointD ij = reference.IntersectionWith(reference.Perpendicular(p.Location));
double dist = p.Location.DistanceTo(ij);
double scale = p.Radius / dist;
PointD projection_line_point = ij.Offset((p.Location.X - ij.X) * scale, (p.Location.Y - ij.Y) * scale);
return(reference.Parallel(projection_line_point));
}
public PointD IntersectionWith(Line line)
{
if (this.Slope == line.Slope) return null;
else if (this.Slope == null) {
return new PointD(Point.X, line.Y(Point.X).Value);
}
else if (line.Slope == null) {
return line.IntersectionWith(this);
}
else {
double x = (this.Point.Y + (double)line.Slope * line.Point.X - (double)this.Slope * this.Point.X - line.Point.Y) / ((double)line.Slope - (double)this.Slope);
double y = (double)this.Slope * (x - this.Point.X) + this.Point.Y; //Basically just Y(x)
return new PointD(x, y);
}
}
public frmMain()
{
InitializeComponent();
Update = Output; //Used to support calling Output() from a different thread.
Angle angle = new Angle(60, AngleType.Degrees);
Line line = new Line(new PointD(0, 0), angle);
Arc arc = new Arc(new PointD(0, 0), 2);
PointD[] intersections = line.IntersectionWith(arc);
foreach (var point in intersections)
{
Output(point.ToString());
}
//tm.Interval = 1000 * 1000;
//tm.MicroTimerElapsed += Tm_MicroTimerElapsed;
//tm.Start();
}
public PointD IntersectionWith(Line line)
{
if (this.Slope == line.Slope)
{
return(null);
}
else if (this.Slope == null)
{
return(new PointD(Point.X, line.Y(Point.X).Value));
}
else if (line.Slope == null)
{
return(line.IntersectionWith(this));
}
else
{
double x = (this.Point.Y + (double)line.Slope * line.Point.X - (double)this.Slope * this.Point.X - line.Point.Y) / ((double)line.Slope - (double)this.Slope);
double y = (double)this.Slope * (x - this.Point.X) + this.Point.Y; //Basically just Y(x)
return(new PointD(x, y));
}
}
public static Line ProjectionLine(Puck p, Line reference)
{
PointD ij = reference.IntersectionWith(reference.Perpendicular(p.Location));
double dist = p.Location.DistanceTo(ij);
double scale = p.Radius / dist;
PointD projection_line_point = ij.Offset((p.Location.X - ij.X) * scale, (p.Location.Y - ij.Y) * scale);
return reference.Parallel(projection_line_point);
}
