# How to create a vertical offset line

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Moustafa Abedel Fattah on 30 Sep 2022
Commented: Image Analyst on 30 Sep 2022
Please urgently if possible I need to solve the following problem
An equation give me graph of some layers at depths z1, z2, z3, and z4 (see attached figure), and I need to break them down (vertical offset) with a constant = z2-z1= z3-z2=z4-z3 (if satisfying this condition), in addition to drowing a vertical line (red line in satisfied location)
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### Accepted Answer

Star Strider on 30 Sep 2022
Try something like this —
zv = sort(rand(4,1)) % Define 'z' Values
zv = 4×1
0.0231 0.1089 0.3493 0.7581
const = rand % Define Constant Offset
const = 0.0537
figure
plot([0 1], zv*[1 1], '-k', 'LineWidth',1.5)
hold on
plot([1 2], (zv-const)*[1 1], '-k', 'LineWidth',1.5)
hold off
xline(1, '-r', 'LineWidth',2)
linelabels = compose('z%d',numel(zv):-1:1);
text(zeros(size(zv)), zv, linelabels, 'Horiz','left', 'Vert','bottom')
text(zeros(size(zv))+2, zv-const, linelabels, 'Horiz','right', 'Vert','bottom')
set(gca, 'Visible','off') % Hide Axes (Optional)
Define the the ‘zv’ vector as a column vector of increasing values, and define the constant (‘const’) as a single scalar.
.
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Moustafa Abedel Fattah on 30 Sep 2022
Thank you Star Strider for your always quick response ... well done
Star Strider on 30 Sep 2022
As always, my pleasure!

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### More Answers (1)

Image Analyst on 30 Sep 2022
Try xline and yline. You can use the 'LineWidth' and 'Color' option to set up the line thickness and color.
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Moustafa Abedel Fattah on 30 Sep 2022
What about the vetical offset?
Image Analyst on 30 Sep 2022
If the line is not going all the way across the graph, you can use line or plot() to specify the endpoints at whatever x and y values you want, so you'll get line segments.

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