public bool edge_exists(edge2d other)
{
edge2d edge_1 = new edge2d(-1, this.vertices[0], this.vertices[1]);
edge2d edge_2 = new edge2d(-1, this.vertices[1], this.vertices[2]);
edge2d edge_3 = new edge2d(-1, this.vertices[2], this.vertices[0]);
if (edge_1.Equals_without_orientation(other) == true || edge_2.Equals_without_orientation(other) == true || edge_3.Equals_without_orientation(other) == true)
{
return(true);
}
return(false);
}
public bool Equals(edge2d other)
{
return(other.start_pt.Equals(this._start_pt) && other.end_pt.Equals(this._end_pt));
}
public bool Equals_without_orientation(edge2d other)
{
return(other.start_pt.Equals(this._start_pt) && other.end_pt.Equals(this._end_pt) || other.start_pt.Equals(this._end_pt) && other.end_pt.Equals(this._start_pt));
}
