# Make a 2D plot with one arbitrary axis

8 views (last 30 days)
Majid Vaghari on 22 Jan 2022
Commented: Majid Vaghari on 24 Jan 2022
I’d like to make a 2D plot like the attached file in MATLAB. My problems are: 1. As the vertical axis is arbitrary, how can I plot a 1D- vector in MATLAB with x, y? I mean we have just data for x-axis (VEC) and how we can plot this vector in a 2D plot while the y-axis is arbitrary? VEC=[2 6 4.5 5 3 6.2 8 2.4]; 2. How can I add those dashed vertical line in a 2D plot? 3. How can fill the inside of the plot with colors? I mean left hand side of the dashed vertical line with a yellow (for example)? Is that possible to make different filling color for each section between the vertical dashed lines? (just like the attached file)
Best, Majid
##### 2 CommentsShowHide 1 older comment
Majid Vaghari on 22 Jan 2022

Attached file

Ive J on 22 Jan 2022
Edited: Ive J on 22 Jan 2022
bpoints = [6.88, 7.84];
color = summer(numel(bpoints) + 1); % or whatever colors you like
v = [5 6.2 8, 9];
h = plot(v, v, 'LineStyle', 'none');
h.Parent.Box = 'on';
ylim = h.Parent.YLim;
xlim = h.Parent.XLim;
h.Parent.YTickLabel = [];
bpoints(end + 1) = xlim(2);
offset = xlim(1);
for i = 1:numel(bpoints)
xx = [offset, bpoints(i), bpoints(i), offset];
yy = [ylim(1), ylim(1), ylim(2), ylim(2)];
patch(h.Parent, 'XData', xx, 'YData', yy, 'FaceColor', color(i, :), ...
'EdgeColor', 'none', 'FaceAlpha', 0.5)
offset = bpoints(i);
if i < numel(bpoints)
xline(h.Parent, bpoints(i), '--', 'LineWidth', 1.4)
end
end
xlabel('VEC')
h.Parent.FontSize = 12;
h.Parent.FontWeight = 'bold'; And then you can add text objects wherever you need (for dots/squares you can also use scatter or plot)
doc text
Majid Vaghari on 24 Jan 2022
It does not work by each of the option. BTW there is no xline in MATLAB R2014B.
Thanks anyway, maybe I would change my MATLAB VERSION.
BEST
MAJID

Ahmed raafat on 22 Jan 2022
Edited: Ahmed raafat on 22 Jan 2022
fill command will be suitable define your 3 squares as vectors , for y make it equal 1 for your graph I think
x1=[6.4 6.88 6.88 6.4 6.4];
y=[0 0 1 1 0];
x2=[6.88 7.84 7.84 6.88 6.88];
x3=[7.84 9 9 7.84 7.84];
d1=[6.88 6.88];
d2=[7.84 7.84];
figure(1)
fill(x1,y,'g')
hold on
fill(x2,y,'r')
fill(x3,y,'g')
plot(d1,[0,1],'b:')
plot(d2,[0,1],'b:')

### Categories

Find more on Graphics Performance in Help Center and File Exchange

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!