public MainViewModel()
{
InitCommand = new Command(() =>
{
shapes.Clear();
FileDataReader.ReadDataFile(dataFilePath)
.Select(line => DataParser.ParseDataLine(line))
.ToList()
.ForEach(data =>
{
if (data.Count == 6)
{
Models.Point a = new Models.Point(data[0], data[1]);
Models.Point b = new Models.Point(data[2], data[3]);
Models.Point c = new Models.Point(data[4], data[5]);
shapes.Add(new Triangle(a, b, c));
}
else if (data.Count == 8)
{
Models.Point a = new Models.Point(data[0], data[1]);
Models.Point b = new Models.Point(data[2], data[3]);
Models.Point c = new Models.Point(data[4], data[5]);
Models.Point d = new Models.Point(data[6], data[7]);
shapes.Add(new Quadrilateral(a, b, c, d));
}
});
});
PlainDrawCommand = new Command(() =>
{
OnPropertyChanged(nameof(Lines));
});
ColorDrawCommand = new Command(() =>
{
double largestQuadPerimeter = shapes
.FindAll(shape => shape is Quadrilateral)
.OrderByDescending(quad => quad.Perimeter)
.First().Perimeter;
List <Triangle> halfPerimeterTriangles = shapes
.FindAll(shape => shape is Triangle && shape.Perimeter < largestQuadPerimeter / 2)
.Cast <Triangle>().ToList();
halfPerimeterTriangles.ForEach(triangle => triangle.Color = Colors.Blue);
List <Triangle> twoLargestTriangles = halfPerimeterTriangles
.OrderByDescending(triangle => triangle.Perimeter)
.Take(2).ToList();
twoLargestTriangles.ForEach(triangle => triangle.Color = Colors.Green);
if (twoLargestTriangles.Count == 2)
{
twoLargestIntersect = twoLargestTriangles[0].Intersects(twoLargestTriangles[1]);
}
OnPropertyChanged(nameof(Lines));
});
IntersectCommand = new Command(() =>
{
MessageBox.Show(twoLargestIntersect.ToString());
});
ExitCommand = new Command(() =>
{
Environment.Exit(0);
});
}