How to plot a filled rectangle without edge?

'EdgeColor', 'None' makes the outline width to be zero?

Answer 1

[Toshia M]

Starting in R2024b, you can specify a name-value argument (EdgeColor="none") to remove the edge lines.

pcolor(rand(10,10),EdgeColor="none")

If you're running an earlier version of MATLAB, you can return the surface object as an output argument and set the EdgeColor property after you call pcolor.

figure
s = pcolor(rand(10,10));
s.EdgeColor = "none";

Answer 2

[Image Analyst]

Set the edge color to the same color value as the "FaceColor'

Answer 3

[DGM]

Disregarding recent changes to options handling, this seems like it was always an adequately answerable question. It was just unclear what "filled rectangle" meant. I don't remember when dot notation started to be accepted here, but the same should have been practical using get()/set() in versions which might have been expected 10 years ago.

% use a rectangle object?
hr = rectangle('position',[1 1 15 10],'curvature',0.5);
hr.FaceColor = 'r';
hr.EdgeColor = 'none';

xlim([0 17])
ylim([0 12])

% use a patch object?
x = [1 1 16 16];
y = [1 11 11 1];

hp = patch(x,y,'r');
hp.EdgeColor = 'none';

xlim([0 17])
ylim([0 12])