MATLAB Answers

How is the MarkerSize of a 'Circle' marker defined

272 views (last 30 days)
Hi,
I'm ploting a 'Circle' marker using the 'plot' command. I'm setting the marker size using 'MarkerSize' property. e.g.:
plot(x,y,'or','MarkerSize',10);
Figure 'Units' are 'pixels'.
My question is what does the number 10 means (in pixles)? I played with it and it is not the radius or diameter in pixels. Any suggestions?
Thanks, Moran

  0 Comments

Sign in to comment.

Accepted Answer

Daniel Shub
Daniel Shub on 31 Jul 2012
The circle marker size appears to be the number of points in the diameter. For the other markers, it is not so clear. You can create a square axis with x and y limits of -1 to 1 that is scale inches high and wide
scale = 4;
set(gca, 'Units', 'Inches')
set(gca, 'Position', scale*[0.25, 0.25, 1, 1])
set(gca, 'YTickLabel', [])
set(gca, 'XTickLabel', [])
axis([-1, 1, -1, 1])
axis square
box on
hold on
and then plot all the symbols to be scale*72 units big. I chose 72 since there are 72 points in an inch.
plot(0 , 0, '.', 'MarkerSize', scale*72);
plot(0 , 0, 'o', 'MarkerSize', scale*72);
plot(0 , 0, 'x', 'MarkerSize', scale*72);
plot(0 , 0, '+', 'MarkerSize', scale*72);
plot(0 , 0, '*', 'MarkerSize', scale*72);
plot(0 , 0, 's', 'MarkerSize', scale*72);
plot(0 , 0, 'd', 'MarkerSize', scale*72);
plot(0 , 0, 'v', 'MarkerSize', scale*72);
plot(0 , 0, '^', 'MarkerSize', scale*72);
plot(0 , 0, '<', 'MarkerSize', scale*72);
plot(0 , 0, '>', 'MarkerSize', scale*72);
plot(0 , 0, 'p', 'MarkerSize', scale*72);
plot(0 , 0, 'h', 'MarkerSize', scale*72);

  4 Comments

Show 1 older comment
Jan
Jan on 31 Jul 2012
@Moran: A small experiment on your computer will answer this question already. Why asking in the forum, what can be investigated locally?
Daniel Shub
Daniel Shub on 31 Jul 2012
@Moran you need to watch your terminology. I set the units of the AXIS and not the FIGURE. Neither of which are the OBJECT. Some OBJECTs have a UNITS property, and others do not. In the case of OBJECTs of type LINE, which markers are, there is no UNITS property.

Sign in to comment.

More Answers (0)

Sign in to answer this question.

Products