internal void readCoordinateFile(string inputFile)
{
Triangulation triangulation = new Triangulation();
try
{
using (StreamReader sr = File.OpenText(inputFile))
{
String input;
while ((input = sr.ReadLine()) != null)
{
String[] words = input.Split(',');
if (words.Length > 2)
{
throw new FormatException("Length: " + words.Length.ToString());
}
ColoredPoint c1 = new ColoredPoint(Convert.ToDouble(words[0]), Convert.ToDouble(words[1]));
if (this.vertices.Count == 0 ||
triangulation.noIntersection(this.vertices[0].point.X, this.vertices[0].point.Y, c1.point.X, c1.point.Y, this))
{
//this.vertices.Add(c1);
this.AddVertex(c1);
}
else
{
//error, we have an intersection
}
}
if (this.vertices.Count > 3)
{
this.close();
}
}
}
catch (Exception e)
{
// Configure the message box to be displayed
string messageBoxText = e.Message;
string caption = "Error";
MessageBoxButton button = MessageBoxButton.OK;
MessageBoxImage icon = MessageBoxImage.Error;
MessageBox.Show(messageBoxText, caption, button, icon);
return;
}
}
public bool AddVertexFromMouseClick(ColoredPoint vertex)
{
Triangulation triangulation = new Triangulation();
if (this.closed == true) return false;
if (!containsWithinRange(vertex))
{
if (this.vertices.Count == 0 ||
triangulation.noIntersection(this.vertices[0].point.X, this.vertices[0].point.Y, vertex.point.X, vertex.point.Y, this))
{
vertex.index = this.vertices.Count;
this.vertices.Add(vertex);
OnPropertyChanged("vertices");
return true;
}
else
{
return false;
}
}
else
{
//if we click on the first point, then we are closing the polygon
if (vertex.withinRoot(this.vertices[0]))
{
this.closed = true;
OnPropertyChanged("vertices");
return true;
}
else
{
return false;
}
}
}