Translate a plot across its axes

22 views (last 30 days)
fsgeek
fsgeek on 30 Nov 2012
Hi guys,
I'm writing a program which draws the hysteresis loops on a stress/strain plot. In order to do this, I need to be able to move successive plots so that they begin where the last plot ends.
As you can see in the picture, I want to translate the steep-looking curve across the figure so that its head matches with the top of the shallower curve.
Thanks in advance,
Louis Vallance

Accepted Answer

Image Analyst
Image Analyst on 1 Dec 2012
Try this demo:
% Make curve 1
x1 = 0:25;
y1 = x1 .^4;
% Make curve 2
x2 = 0:50;
y2 = 40000 * x2 .^ 0.3;
% Plot them
plot(x1, y1, 'r-', 'LineWidth', 2);
hold on;
grid on;
plot(x2, y2, 'g-', 'LineWidth', 2);
% Now make new, shifted curve
y3 = y1 - y1(end )+ y2(end);
x3 = x1 - x1(end) + x2(end);
% Plot the shifted curve.
plot(x3, y3, 'b-', 'LineWidth', 2);
legend('Curve 1', 'Curve 2', 'Shifted Curve 2');

More Answers (2)

dpb
dpb on 30 Nov 2012
If values are (x,y1) and (x,y2) then
plot(x,y1,[x+x(end)-x(1)],[y2+y1(end)-y1(1)])
--

fsgeek
fsgeek on 5 Dec 2012
Thanks for the help guys, much appreciated.
Regards,
Louis Vallance

Products

Community Treasure Hunt

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

Start Hunting!