/// <summary>
///
/// </summary>
/// <param name="iVx"></param>
/// <param name="ptRelVx"></param>
/// <returns></returns>
public Point2i GetRelativeUV(int iVx, Point2i ptRelVx)
{
var pt = IndexUV(iVx) + ptRelVx;
if (new Point2i(0, 0) > pt || pt >= SizeUV)
{
throw new Exception("Index does not exist");
}
return(pt);
}
private void Initialize(Rectangle3d boundingBox, Point2d pixelDimensions)
{
_BBox = boundingBox;
_PixelSize = pixelDimensions;
int iX = Convert.ToInt16(Math.Floor(boundingBox.X.Length / pixelDimensions.X));
int iY = Convert.ToInt16(Math.Floor(boundingBox.Y.Length / pixelDimensions.Y));
var size = new Point2i(iX, iY);
SizeUV = size;
}
/// <summary>
/// Construct a pixelgrid
/// </summary>
/// <param name="boundingBox"></param>
/// <param name="pxielDimensions"></param>
/// <param name="grid"></param>
public Grid2D(Rectangle3d boundingBox, Point2d pxielDimensions, T grid)
: base()
{
_BBox = boundingBox;
_PixelSize = pxielDimensions;
int iX = Convert.ToInt16(Math.Floor(boundingBox.X.Length / pxielDimensions.X));
int iY = Convert.ToInt16(Math.Floor(boundingBox.Y.Length / pxielDimensions.Y));
var gridsize = new Point2i(iX, iY);
SizeUV = gridsize;
Grid = grid;
}
/// <summary>
/// Is the point2i equal to point p1. Zero tolerance for differences.
/// </summary>
/// <param name="p">Point2i to compare with</param>
/// <returns></returns>
public bool Equals(Point2i p)
{
return(X == p.X && Y == p.Y);
}
/// <summary>
/// Return a value at index
/// </summary>
/// <param name="index"></param>
/// <returns></returns>
public Y ValueAt(Point2i index)
{
return(ValueAt(UVIndex(index)));
}
/// <summary>
/// Convert a point2i location to the index of the point in the bitarray
/// </summary>
/// <param name="uv"></param>
/// <returns></returns>
public int UVIndex(Point2i uv)
{
return(uv ^ _SizeUV);
}