public static float GetRadius(VegetationMaskArea mask)
{
Vector3 maskCenter = GetMaskCenter(mask);
List <Vector3> worldPositions = mask.GetWorldSpaceNodePositions();
// calculate the radius by using the average distance from the mask center
float magnitudeSum = 0f;
foreach (Vector3 worldPosition in worldPositions)
{
magnitudeSum += (worldPosition - maskCenter).magnitude;
}
float radius = magnitudeSum / mask.Nodes.Count;
return(radius);
}
/// <summary>
/// Get the center of the mask polygon
/// </summary>
/// <param name="mask"></param>
/// <returns></returns>
public static Vector3 GetMaskCenter(VegetationMaskArea mask)
{
List <Vector3> worldPositions = mask.GetWorldSpaceNodePositions();
return(PolygonUtils.GetMeanVector(worldPositions.ToArray()));
}
