How to display arc length of the line created on a line plot based on the input data

11 ビュー (過去 30 日間)
I am currently plotting a series of x and y co-ordinates using the plot(x,y) function in MATLAB which outputs a graph that looks something like this:
How do I go about displaying the arc length of the line created at points along the line assuming my first x and y data point is 0% and my last data point is 100%?
  2 件のコメント
jessupj 2022 年 1 月 17 日
編集済み: jessupj 2022 年 1 月 17 日
i think you want something along the lines of the cumulative sum of the pythagorean distances between successive points on the curve, normalized by the final term.



Voss 2022 年 1 月 17 日
% some x and y:
x = [10:-1:2 2:10];
y = [5+sqrt(x(1:end/2)) 5-sqrt(x(end/2+1:end))];
set(gca(),'XLim',[0 12]);
% calculate "normalized arc length":
dx = diff(x);
dy = diff(y);
ds = sqrt(dx.^2+dy.^2);
s = cumsum([0 ds]);
s = s/s(end);
% put a text at each x,y with value of s:
v_a = {'top','bottom'};
nx = numel(x);
for i = 1:nx

その他の回答 (0 件)

Community Treasure Hunt

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

Start Hunting!

Translated by