MATLAB: Xpos(i) in Polygonal domain

domainpolygonsxpos

Hi, I need to define random point positions within a polygonal domain. So far, I am only able to realize the random positions of my points in the quadratic plot window with

for i=1:6000 xpos(i)=100*rand; ypos(i)=100*rand; end

So I want to arrange these points arbitrary within a polygon. I would really appreciate any help.

Best Answer

You could generate random points in a rectangle enclosing the polygon and then choose the points that lie inside using inpolygon. The documentation for this function even provides an example that is similar to what you want to do.

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MATLAB: Error when using min function

Hi Andrew, this is a hypothetical answer but it may be that you have, somewhere else, defined 'min' to be a variable .e.g min = 4 or similar.

MATLAB: Undefined function or variable ‘y’.

Found solution:

a(1,1,x,y,p,N,x_min,x_max,y_min,y_max)
function fun = a(j,i,x,y,p,N,x_min,x_max,y_min,y_max)
f = @(x,y,i,j) p(x,y).* N(i).* N(j);
h = @(y) int(f(x,y,i,j), x, x_min, x_max);
fun = vpa(int(h(y), y, y_min, y_max)); 
end

Best Answer

Related Solutions

MATLAB: Error when using min function

MATLAB: Undefined function or variable ‘y’.

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