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| class DXF
{
private const double ToléranceAccrochage = 0.001;
protected static List<Point> lstPts = new List<Point>();
/// <summary>
/// Retourne le point le plus proche
/// </summary>
/// <param name="point"></param>
/// <returns></returns>
private static Point GetClosestPoint(Point point)
{
double distance = 0.0;
Point closest = null;
foreach (Point pt in lstPts)
{
double d = pt.Distance(point);
if (distance == 0.0)
{
distance = d;
closest = pt;
}
else if (d < distance)
{
distance = d;
closest = pt;
}
}
return closest;
}
/// <summary>
/// Retourne le point le plus proche si celui-ci est dans la tolérance
/// </summary>
/// <param name="point"></param>
/// <param name="tolérance"></param>
/// <returns></returns>
private static Point GetClosestPoint(Point point, double tolérance)
{
Point closest = GetClosestPoint(point);
if (closest != null && point.Distance(closest) <= tolérance)
return closest;
return null;
}
public class DXFline
{
#region Point1
private Point _point1 = new Point();
/// <summary>
/// Point 1
/// </summary>
public Point Point1
{
get { return _point1; }
set
{
if (_point1 != value)
{
Point pt = GetClosestPoint(value, ToléranceAccrochage);
if (pt == null)
lstPts.Add(value);
_point1 = value;
}
}
}
#endregion
#region Point2
private Point _point2 = new Point();
/// <summary>
/// Point 2
/// </summary>
public Point Point2
{
get { return _point2; }
set
{
if (_point2 != value)
{
Point pt = GetClosestPoint(value, ToléranceAccrochage);
if (pt == null)
lstPts.Add(value);
_point2 = value;
}
}
}
#endregion
#region Milieu
/// <summary>
/// Milieu
/// </summary>
public Point Milieu
{
get
{
return new Point(this._point1.X + (this._point2.X - this._point1.X) / 2, this._point1.Y + (this._point2.Y - this._point1.Y) / 2, this._point1.Z + (this._point2.Z - this._point1.Z) / 2);
}
}
#endregion
public override string ToString()
{
return string.Format("ligne {0},{1} - {2},{3}", this.Point1.X.ToString("0.000", System.Globalization.CultureInfo.InvariantCulture), this.Point1.Y.ToString("0.000", System.Globalization.CultureInfo.InvariantCulture), this.Point2.X.ToString("0.000", System.Globalization.CultureInfo.InvariantCulture), this.Point2.Y.ToString("0.000", System.Globalization.CultureInfo.InvariantCulture));
}
}
public class DXFArc
{
#region Centre
private Point _centre = new Point();
/// <summary>
/// Centre
/// </summary>
public Point Centre
{
get { return _centre; }
set
{
if (_centre != value)
{
Point pt = GetClosestPoint(value, ToléranceAccrochage);
if (pt == null)
lstPts.Add(value);
_centre = value;
RecalcPoints();
}
}
}
#endregion
#region Rayon
private Double _rayon;
/// <summary>
/// Rayon
/// </summary>
public Double Rayon
{
get { return _rayon; }
set
{
if (_rayon != value)
{
_rayon = value;
RecalcPoints();
}
}
}
#endregion
#region Angle 1
private Double _angle1;
/// <summary>
/// Angle (en degrés décimaux)
/// </summary>
public Double Angle1
{
get { return _angle1; }
set
{
if (_angle1 != value)
{
_angle1 = value;
RecalcPoints();
}
}
}
#endregion
#region Angle 2
private Double _angle2;
/// <summary>
/// Angle (en degrés décimaux)
/// </summary>
public Double Angle2
{
get { return _angle2; }
set
{
if (_angle2 != value)
{
_angle2 = value;
RecalcPoints();
}
}
}
#endregion
#region Point1
private Point _point1;
/// <summary>
/// Point1
/// </summary>
public Point Point1
{
get { return _point1; }
}
#endregion
#region Point2
private Point _point2;
/// <summary>
/// Point2
/// </summary>
public Point Point2
{
get { return _point2; }
}
#endregion
private void RecalcPoints()
{
if (_centre != null)
{
double angle1Rad = Math.PI * _angle1 / 180;
double angle2Rad = Math.PI * _angle2 / 180;
Point pt1 = new Point(_centre.X + Rayon * Math.Cos(angle1Rad), _centre.Y + Rayon * Math.Sin(angle1Rad));
Point pt2 = new Point(_centre.X + Rayon * Math.Cos(angle2Rad), _centre.Y + Rayon * Math.Sin(angle2Rad));
Point closest1 = GetClosestPoint(pt1, ToléranceAccrochage);
Point closest2 = GetClosestPoint(pt2, ToléranceAccrochage);
Point test1 = GetClosestPoint(pt1);
Point test2 = GetClosestPoint(pt2);
if (closest1 == null)
{
lstPts.Add(pt1);
_point1 = pt1;
}
else
_point1 = closest1;
if (closest2 == null)
{
lstPts.Add(pt2);
_point2 = pt2;
}
else
_point2 = closest2;
}
else
{
_point1 = null;
_point2 = null;
}
}
public override string ToString()
{
return string.Format("Arc {0},{1} - {2},{3}", this.Point1.X.ToString("N3", System.Globalization.CultureInfo.InvariantCulture), this.Point1.Y.ToString("N3", System.Globalization.CultureInfo.InvariantCulture), this.Point2.X.ToString("N3", System.Globalization.CultureInfo.InvariantCulture), this.Point2.Y.ToString("N3", System.Globalization.CultureInfo.InvariantCulture));
}
} |
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