Transforming axis. How to create a customized axis.
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I have x,y,z coordinates from a tissue and corresponding them, a signal value. The tissue is curved, so when I plot data in x-y plane, I can see the graph as shown. I want to plot 2D graph such that my x-axis is the midline of tissue(black line) and y-axis is my signal value.
Thanks!![Sample_3_z1-11.jpg](https://www.mathworks.com/matlabcentral/answers/uploaded_files/201151/Sample_3_z1-11.jpeg)
![Sample_3_z1-11.jpg](https://www.mathworks.com/matlabcentral/answers/uploaded_files/201151/Sample_3_z1-11.jpeg)
8 Comments
Jan
on 11 Feb 2019
@Chandel Singh: So start with finding a function to fit the hand drawn curve. This is not trivial and there is no unique solution. What about a cubic spline or are there any mathematical restrictions to the wanted function?
Afterwards a problem remains: in the parts, where the function is konvex, the relation is not necessarily unqiue. Example: If the fitted line is a circle, you cannot find a unique correlation between the curve and the center. This means, that there is no guarantee that there is a unique solution to you problem.
But you can find some solutions. Currently this problem does not concern Matlab, so you have to find mathematical solutions any where elese at first, before it matchs the topic of this forum.
Answers (2)
jahanzaib ahmad
on 22 Jan 2019
minus some value from x coordinates
like if u have x,y data in A .
A =[A(:,1)-1321 A(:,2)];
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