wrinting a ".str" file

Question

Win Thomas Halim 2011-4-27

0
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https://ww2.mathworks.cn/matlabcentral/answers/6293-wrinting-a-str-file

hi there, just want to ask u a simple question here, so suppose i have x y and z matrix which i want to convert into a stream file. they consist of 100x1 data each. what matlab command do i need to use to convert them into a ".str" attribute and how do i use it? thank you very much

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Answer 1

Alexandre Carvalho Leite 2011-4-27

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https://ww2.mathworks.cn/matlabcentral/answers/6293-wrinting-a-str-file#answer_8735

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Write your data into a file, just like in the following function:

function [] = surf2obj(fileName,x,y,z)
%
% SURF2OBJ converts a surface into an OBJ file.
%
% SURF2OBJ(fname,X,Y,Z) where fname is the filename (without extension)
% used to generate the dxf file and X, Y and Z are matrix arguments
% of the MATLAB surface format.
% 
% Example: Classical peak plots:
%
% [X,Y,Z] = peaks(3);
% surf2obj('sd.obj',X,Y,Z); % search the file sd.obj at the current MATLAB path
%
%
% Author: Alexandre Carvalho Leite (alexandrecvl@hotmail.com)
%
p=surf2patch(surf(x,y,z));
fid=fopen(fileName,'w+');
for v=1:size(p.vertices,1),
    fprintf(fid,'v %f %f %f\n',p.vertices(v,1),p.vertices(v,2),p.vertices(v,3));
end
fprintf(fid,'\n');
for f=1:size(p.faces,1),
    fprintf(fid,'f %d %d %d %d\n',p.faces(f,1),p.faces(f,2),p.faces(f,3),p.faces(f,4));
end
fclose(fid);