private void button1_Click(object sender, EventArgs e)
{
try
{
Vector2D vec1 = new Vector2D();
Vector2D vec2 = new Vector2D();
Point2D center = new Point2D(2003.4945, 1103.6469);
Point2D start = new Point2D(2494.6048, 982.6129);
Point2D end = new Point2D(1499.1729, 1142.3536);
Debug.WriteLine("distance between p1 p2 is : " + center.GetDistanceTo(start).ToString());
Debug.WriteLine("distance between p2 p3 is : " + end.GetDistanceTo(start).ToString());
Arc2D arc1 = new Arc2D(center, start, end);
vec1 = center.GetVector2DTo(start);
vec2 = center.GetVector2DTo(end);
}
catch (System.Exception ex)
{
Debug.WriteLine(ex.Message);
}
}
public bool IsCounterDirection(Vector2D v)
{
Double DeltaAngle = Math.Abs(Math.Abs(v.StartAngle - this.StartAngle)-Math.PI);
return DeltaAngle > 0 && DeltaAngle < _precision;
}
public bool IsSameDirection(Vector2D v)
{
Double DeltaAngle = Math.Abs(v.StartAngle-this.StartAngle) ;
return DeltaAngle > 0 && DeltaAngle < _precision;
}
public bool IsCounterClockWiseTo(Vector2D v)
{
Double DeltaAngle = v.StartAngle - this.StartAngle;
return DeltaAngle > 0;
}
public Double GetNormalAngleTo(Vector2D v)
{
Double DotProduction = this * v;
Double projection = (DotProduction) / (this.Length * v.Length);
return Math.Acos(projection);
}
public Double GetBigAngleTo(Vector2D v)
{
Double angle = this.GetNormalAngleTo(v);
return 2 * Math.PI - angle;
}
public Double GetAngleTo(Vector2D v)
{
Double DeltaAngle = v.StartAngle - this.StartAngle;
return DeltaAngle;
}
/// <summary>
/// Counter clock wise Cross-Production to Vector2D(v)
/// as the two vectors are both on X-Y plane, their Cross-Production is on Z-Axis
/// </summary>
public Double CrossProductTo(Vector2D v)
{
return (this.X * v.Y - this.Y * v.X);
}