How can I plot a filled convex shape?

Is it possible to plot a filled convex shape?

This is what I want to plot:

This is what I have plotted using the rectangle command but it does not work with unordinary shapes.

Answer 1

[Star Strider]

This works for me with both fill and patch in R2017b:

x = [120 158 165 188 198 145];
y = [ 55  51  89  51  14  14];

figure(1)
fill(x, y, [0.1 0.5 0.9])
axis([100  200    0  150])
axis equal

figure(2)
patch(x, y, [0.1 0.5 0.9])
axis([100  200    0  150])
axis equal

The patch function usually closes the curve on its own. If it doesn’t, close it yourself:

patch([x x(1)], [y y(1)], [0.1 0.5 0.9])

Answer 2

[Image Analyst]

For analytical data (graph points) you can do what Star says.

If you have digital images, look at the functions imfill(), bwconvhull(), and poly2mask(). They're all slightly different depending on what you're starting with and what you want to end up with.

[Image Analyst]

I don't think Canberk cares about your question - it doesn't answer or address his problem at all - so post your question in a new, completely separate post, not here.