MATLAB: Voronoi Diagram in Dashed Lines

dasheddashed lineslinestyleplotvoronoi

I'm trying to plot a voronoi diagram using dashed lines instead of solid. I am using vectors X and Y.

voronoi(X,Y,'r','LineStyle','--')

The code above returns a "Too many Arguments" error

v = voronoi(X,Y,'r')
set(v,'LineStyle','--')

The code above actually does make the voronoi into dashed lines, but it also plots X and Y as dashed lines, and I have no idea why. Any ideas?

Best Answer

Try to grab only handles of voronoi lines

set(h(2:end),'linestyle','--')

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MATLAB: Voronoi boundaries

It seems no-one has heard of a routine which does what I need, so I spent some time making one myself. Anyone who stumble across this thread with a similar question, can check it out HERE.

MATLAB: Find polygon in voronoi diagram

Hi all,

The following code solves the problem.

clc; close all; clearvars;
lambda = 10;
npoints = poissrnd(lambda);
pproc = rand(npoints,2);
x = pproc(:,1);
y = pproc(:,2);
[vx,vy] = voronoi(x,y);
plot(vx,vy,'k-'); hold on; axis([0 2 0 2]);
 % Perform DT on original x and y
DT = delaunayTriangulation(x,y);
 % V contains vertices
% R contains regions
[V,R] = voronoiDiagram(DT);
 % Obtain vertices enclosing region 1
coord = V(R{1},:);
 % for while loop
i = 2; 
 % Exclude infinite vertices
% Loop until no region has infinite vertices
while ismember(Inf,coord)
    coord = V(R{i},:);
    i = i + 1;
end
 % Append the first vertex just to plot a complete polygon
coord = [coord;coord(1,:)];
 % Plot the polygon
plot(coord(:,1),coord(:,2),'b-','linewidth',2);

The following image is an example output of the above code.

Best Answer

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MATLAB: Voronoi boundaries

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