private static bool IsContainOrigin(Triangle triangle)
{
double lengthFromP1P2 = GetLength(triangle.P1, triangle.P2, _origin);
double lengthFromP2P3 = GetLength(triangle.P2, triangle.P3, _origin);
double lengthFromP3P1 = GetLength(triangle.P3, triangle.P1, _origin);
return ((lengthFromP1P2 > 0 && lengthFromP2P3 > 0 && lengthFromP3P1 > 0) ||
(lengthFromP1P2 < 0 && lengthFromP2P3 < 0 && lengthFromP3P1 < 0));
}
private static IList<Triangle> LoadTriangles(string path)
{
IList<string> strings = File.ReadAllLines(path);
IList<Triangle> result = new List<Triangle>();
foreach (string triangleInStr in strings)
{
string[] pointsInStr = triangleInStr.Split(
new[]
{
','
},
StringSplitOptions.RemoveEmptyEntries);
var triangle = new Triangle
{
P1 = new Point
{
X = int.Parse(pointsInStr[0]),
Y = int.Parse(pointsInStr[1])
},
P2 = new Point
{
X = int.Parse(pointsInStr[2]),
Y = int.Parse(pointsInStr[3])
},
P3 = new Point
{
X = int.Parse(pointsInStr[4]),
Y = int.Parse(pointsInStr[5])
},
};
result.Add(triangle);
}
return result;
}