text: #include <opencv2/imgproc.hpp>
  creates an empty Subdiv2D object. To create a new empty Delaunay subdivision you need to use the initDelaunay function.
  This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
  The function creates an empty Delaunay subdivision where 2D points can be added using the function insert() . All of the points to be added must be within the specified rectangle, otherwise a runtime error is raised.
  Returns the edge destination.
  Returns the edge origin.
  Finds the subdivision vertex closest to the given point.
  The function is another function that locates the input point within the subdivision. It finds the subdivision vertex that is the closest to the input point. It is not necessarily one of vertices of the facet containing the input point, though the facet (located using locate() ) is used as a starting point.
  Returns one of the edges related to the given edge.
  Returns a list of all edges.
  The function gives each edge as a 4 numbers vector, where each two are one of the edge vertices. i.e. org_x = v[0], org_y = v[1], dst_x = v[2], dst_y = v[3].
  Returns a list of the leading edge ID connected to each triangle.
  The function gives one edge ID for each triangle.
  Returns a list of all triangles.
  The function gives each triangle as a 6 numbers vector, where each two are one of the triangle vertices. i.e. p1_x = v[0], p1_y = v[1], p2_x = v[2], p2_y = v[3], p3_x = v[4], p3_y = v[5].
  Returns vertex location from vertex ID.
  Returns a list of all Voroni facets.
  Creates a new empty Delaunay subdivision.
  Insert a single point into a Delaunay triangulation.
  The function inserts a single point into a subdivision and modifies the subdivision topology appropriately. If a point with the same coordinates exists already, no new point is added.
  Insert multiple points into a Delaunay triangulation.
  The function inserts a vector of points into a subdivision and modifies the subdivision topology appropriately.
  Returns the location of a point within a Delaunay triangulation.
  The function locates the input point within the subdivision and gives one of the triangle edges or vertices.
  Returns next edge around the edge origin.
  Returns another edge of the same quad-edge.
  Bottom right corner of the bounding rect.
  All of the edges.
  Top left corner of the bounding rect.
  All of the vertices.