/// <summary>
///
/// </summary>
/// <param name="idx"></param>
/// <param name="facetList"></param>
/// <param name="facetCenters"></param>
public void GetVoronoiFacetList(IEnumerable <int> idx, out Point2f[][] facetList, out Point2f[] facetCenters)
{
ThrowIfDisposed();
IntPtr facetListPtr, facetCentersPtr;
if (idx == null)
{
NativeMethods.imgproc_Subdiv2D_getVoronoiFacetList(ptr, IntPtr.Zero, 0, out facetListPtr, out facetCentersPtr);
}
else
{
int[] idxArray = EnumerableEx.ToArray(idx);
NativeMethods.imgproc_Subdiv2D_getVoronoiFacetList(ptr, idxArray, idxArray.Length, out facetListPtr, out facetCentersPtr);
}
using (VectorOfVectorPoint2f facetListVec = new VectorOfVectorPoint2f(facetListPtr))
{
facetList = facetListVec.ToArray();
}
using (VectorOfPoint2f facetCentersVec = new VectorOfPoint2f(facetCentersPtr))
{
facetCenters = facetCentersVec.ToArray();
}
}
/// <summary>
/// Returns a list of all Voronoi facets.
/// </summary>
/// <param name="idx">Vector of vertices IDs to consider. For all vertices you can pass empty vector.</param>
/// <param name="facetList">Output vector of the Voronoi facets.</param>
/// <param name="facetCenters">Output vector of the Voronoi facets center points.</param>
public void GetVoronoiFacetList(IEnumerable <int>?idx, out Point2f[][] facetList, out Point2f[] facetCenters)
{
ThrowIfDisposed();
int[]? idxArray = idx as int[] ?? idx?.ToArray();
using var facetListVec = new VectorOfVectorPoint2f();
using var facetCentersVec = new VectorOfPoint2f();
NativeMethods.HandleException(
NativeMethods.imgproc_Subdiv2D_getVoronoiFacetList(
ptr, idxArray, idxArray?.Length ?? 0, facetListVec.CvPtr, facetCentersVec.CvPtr));
GC.KeepAlive(this);
facetList = facetListVec.ToArray();
facetCenters = facetCentersVec.ToArray();
}