How to assign values to a mesh based on xyzc points?
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load('variables.mat')
[xq, yq, zq] = meshgrid(min(x):12.5:max(x),min(y):12.5:max(y),min(z):2:max(z));
cq = nan(size(xq));
[~, pos] = ismember([x,y,z],[xq(:),yq(:),zq(:)],'rows');
cq(pos) = c;
The code creates a mesh grom the x y z data attached. I want to assign a c value to the mesh points that coincide with my original xyzc and left the rest of the points as nan value from "cq".
My indexes from ismember does not work because i havent been able to create a mesh that coincides with all the points from my xyz.
Thanks in advance,
3 comentarios
Adam Danz
el 9 de Ag. de 2021
The biggest problem is that your data are floating decimals with very high precision. For example,
format long
z(end)
ans =
1.898261677911120e+03
so it's very unlikely that you'll generate perfect matches with a simple grid.
Without knowing the main goal I can't suggest an alternative.
Respuestas (1)
KSSV
el 9 de Ag. de 2021
load('variables.mat') ;
nx = length(unique(x)) ;
ny = length(unique(y)) ;
m = 100 ; n = 100 ;
xi = linspace(min(x),max(x),m) ;
yi = linspace(min(y),max(y),n) ;
[X,Y] = meshgrid(xi,yi) ;
Z = griddata(x,y,z,X,Y) ;
C = griddata(x,y,c,X,Y) ;
surf(X,Y,Z,C)
shading interp
colorbar
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