cutline of a triangular meshed graph

1 vue (au cours des 30 derniers jours)
Chun-Wei Wu
Chun-Wei Wu le 7 Juil 2021
Commenté : Chun-Wei Wu le 7 Juil 2021
So I was trying to find a cutline at x=0 and want to plot 1D plot along it, so that I can have y vs. z. This is the scatter plot of my graph.
The dots are not arranged meaning that the x and y axis are not the same, they are kinda random, so I tried delaunay function to link all the points together.
But now the question is how do I get the plot at x=0 or any number and plot y vs. z.
Is there a way to do it? I've seen people talking about barycentric coordinates, but I just don't know how to implement it.

Réponses (1)

Kelly Kearney
Kelly Kearney le 7 Juil 2021
The simplest way to do this is to simply interpolate z for a set of points defined by x = 0 and y = the range of your y-data. For example:
x = rand(5000,1)*7 - 3;
y = rand(5000,1)*7 - 3;
z = peaks(x,y);
yi = linspace(-3,3,100);
xi = zeros(1,100);
F = scatteredInterpolant(x,y,z,'linear');
zi = F(xi,yi);
  1 commentaire
Chun-Wei Wu
Chun-Wei Wu le 7 Juil 2021
Thank you very much! That worked perfectly!

Connectez-vous pour commenter.


En savoir plus sur Scatter Plots dans Help Center et File Exchange

Community Treasure Hunt

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

Start Hunting!

Translated by