voronoin - is there any conection between output vertices and cells c and v and input coordinate vector?
2 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
I am using comand [c,v] = voronoin(x); first I remove all the cells c, which have at least 1 element == 1:
ind = cellfun(@(xx)all(xx~=1),c);
Afterwards, using custom cellfun I am calculateing area of each voronoi cells Ap, and indices of each voronoi cell Vp:
[Vp,Ap] = cellfun(@ voronoinVert,c,v,'UniformOutput',false);
That works fast and perfect. Finally I want to know which of my input point x is contained in each of voronoi cell c with vertices Vp. I am runing inpolygon, which is very good function, but my x vector contains on average 5e5 points. I am filtering all the points x with coordinates outside the bounding box of given voronoi cell, but still it takes 10-20 min for iteration. So, to recapitulate, is there any connection bwtween ordering of input x points to the ordering of output c and v, so I could avoid inpolygon?
thank you very much for the help,
Ina
2 Kommentare
Antworten (0)
Siehe auch
Kategorien
Mehr zu Voronoi Diagram finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!