/// <summary>
/// Feature extraction. True if the polyline goes through the ball.
/// </summary>
/// <param name="b">The ball.</param>
/// <returns>True if the polyline crosses the ball.</returns>
public bool Crosses(Ball b)
{
bool res = false;
for (int i = 0; i < _polylineX.Length; i++)
res = res || ((_polylineX[i] - b.X) * (_polylineX[i] - b.X) + (_polylineY[i] - b.Y) * (_polylineY[i] - b.Y) < b.Radius * b.Radius);
return res;
}
/// <summary>
/// Builds a cover from a .csv file.
/// </summary>
/// <param name="csvFilePath">.csv file containing the cover. Must contain a header.</param>
public Cover(string csvFilePath)
{
using (StreamReader reader = new StreamReader(csvFilePath))
{
string line = "";
reader.ReadLine(); // header
while ((line = reader.ReadLine()) != null)
{
string[] res = line.Split(',');
double x = Convert.ToDouble(res[0], CultureInfo.GetCultureInfo("en-US"));
double y = Convert.ToDouble(res[1], CultureInfo.GetCultureInfo("en-US"));
double radius = Convert.ToDouble(res[2], CultureInfo.GetCultureInfo("en-US"));
Ball current = new Ball(x, y, radius);
_balls.Add(current);
_names.Add(line.Replace(',', '_'));
}
}
}