texture mapping in 3d surface?

hello

how i can project a texture image in 3d surface

i have use

surface (X,Y,Z,'facecolor','texturemap',...
      'cdata',I,'edgecolor','none');

but it dosen'tgive me good result

[Ameer Hamza]

Can you show what type of result you get and what do you expect?

[youb mr]

this is my result

some parameters in the photo are missing and the texture color is changed

my 3 surface

[Walter Roberson]

Could you attach your data to test with?

[youb mr]

this is the data

[youb mr]

where

nx = 120; % the size of the grid

ny = 120; % the size of the grid

% % create a grid in x and y

x = linspace(min(v(:,1)),max(v(:,1)),nx);

y = linspace(min(v(:,2)),max(v(:,2)),ny);

[x,y] = meshgrid(x,y);

% % find corresponding z-values by means of gridtrimesh.m

% fprintf(['gridtrimesh.......']); tic

Z = gridtrimesh(f,v,x,y);