coordinates - How to limit voronoi calculations in Matlab? -

i have stack of images of elliptical cylinder. within cylinder few "dots"/seeds of importance. i've calculated euclidean distance between them , nearest neighbour. next step make voronoi diagram , calculate volume of each voronoi cell.

i need define space/limits of elliptical cylinder, take account when calculating voronoi diagram.

any ideas?

thanks in advance,

yotam

first let's start context guessing:

matlab mupad symbolic calculations. don't see why think need draw anything?

i have no clue why need draw anything, assume it's visualising calculation done.. cross section area, using specific plane equation, or cross section circumference, given plane equation. or perhaps collision points of ray, or highlight surface calculating on?

in cases numerical rendering adequate, , use built in plot functions...

i recommend surface (plots mesh) http://nl.mathworks.com/help/matlab/ref/surface.html

but in fact previous question in here shows how manually plot 3d cylinder: cylinder filled top , bottom in matlab

notice equations cylinder expressed directly in function, allowing modify it!

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having read comment, question asked had nothing want do.. disregard answer, if update question concerning limiting voronoi calculations on images