calculate the length of scattered data

3 次查看（过去 30 天）
yunwei hu
yunwei hu 2020-2-10
评论： KSSV 2020-2-10
Hello everyone,
contour.jpg
can anyone tell me how to calculate the length of the curve l plotted here?
thanks in advance!

请先登录，再回答此问题。

采纳的回答

KSSV
KSSV 2020-2-10
编辑：KSSV 2020-2-10
Let A be your n*2 data points
A = [A ; A(1,:)] ;
x = A(:,1) ; % x coordinates of the points
y = A(:,2) ; % y coordinates of the points
iwant = sum(sqrt(diff(x).^2+diff(y).^2)) ; % distance formula
  4 个评论
显示 2更早的评论
yunwei hu
yunwei hu 2020-2-10
Sorry l did not explain clearly before.
Actually this is the contour of a cell and i would need the length of it. That is why the curve is closed.
KSSV
KSSV 2020-2-10
If plot(x,y), give you the above curve..you can use what I have given.

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Scatter Plots 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by