function?[vertexfacesnormallocationpicture]?=?read_obj（filenamepicturename）
?
%?read_obj?-?load?a?.obj?file.
%
%???[vertexfacenormal]?=?read_obj（filename）;
%
%???faces????:?list?of?facesangle?elements
%???vertex??:?node?vertexinatates
%???normal?:?normal?vector?list
%
%???Copyright?（c）?2008?Gabriel?Peyre
?
fid?=?fopen（filename）;
if?fid<0
????error（[‘Cannot?open?‘?filename?‘.‘]）;
end
?
frewind（fid）;
a?=?fscanf（fid‘%c‘1）;
if?strcmp（a?‘P‘）
????%?This?is?the?montreal?neurological?institute?（MNI）?specific?ASCII?facesangular?mesh?data?structure.
????%?For?FreeSurfer?software?a?slightly?different?data?input?coding?is
????%?needed.?It?will?be?provided?upon?request.
????fscanf（fid‘%f‘5）;
????n_points=fscanf（fid‘%i‘1）;
????vertex=fscanf（fid‘%f‘[3n_points]）;
????normal=fscanf（fid‘%f‘[3n_points]）;
????n_faces=fscanf（fid‘%i‘1）;
????fscanf（fid‘%i‘5+n_faces）;
????faces=fscanf（fid‘%i‘[3n_faces]）‘+1;
????fclose（fid）;
????return;
end
?
frewind（fid）;
vertex?=?[];
faces?=?[];
location?=?[];
normal?=?[];
while?1
????s?=?fgetl（fid）;
????if?~ischar（s）?
????????break;
????end
????if?~isempty（s）?&&?strcmp（s（1）?‘f‘）
????????%?face
????????af?=??sscanf（s（3:end）‘%d/%d/%d?%d/%d/%d?%d/%d/%d‘）;
????????faces（:end+1）?=af（1:3:end1）;
%????????faces（:end+1）?=?sscanf（s（3:end）?‘%d?%d?%d‘）;
????end
????if?~isempty（s）?&&?strcmp（s（1）?‘v‘）
????????if?strcmp（s（2）?‘?‘）
????????????%?vertex
????????????vertex（:end+1）?=?sscanf（s（3:end）?‘%f?%f?%f‘）;
????????elseif?strcmp（s（2）?‘t‘）
????????????location（:end+1）?=?sscanf（s（4:end）?‘%f?%f‘）;
????????elseif?strcmp（s（2）?‘n‘）
????????????normal（:end+1）?=?sscanf（s（4:end）?‘%f?%f?%f‘）;
????????end
????end
end
fclose（fid）;

picture?=?imread（picturename）;
[highwidth~]?=?size（picture）;
location（1:）?=?location（1:）?*?width;
location（2:）?=?high-1-location（2:）?*?high;
?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????103625??2016-07-26?21:34??test\Angry\000.jpg

?????文件????6607102??2016-07-25?15:17??test\Angry\000.wrl

?????文件?????687801??2013-07-27?20:36??test\bu4d_test\0000.jpg

?????文件????????211??2013-07-27?20:39??test\bu4d_test\0000.mtl

?????文件????8566714??2013-07-27?20:26??test\bu4d_test\0000.obj

?????文件???????1840??2018-05-17?19:38??test\read_obj.m

?????文件???????1628??2018-05-16?22:01??test\read_wrl.m

?????文件??????56864??2018-05-17?20:24??test\result.png

?????文件????????671??2018-05-17?20:24??test\test_obj.m

?????文件????????653??2018-05-17?20:23??test\test_wrl.m

?????文件???????2921??2018-05-17?20:14??test\ZBuffer.m

????..AD...?????????0??2018-05-17?20:26??test\Angry

?????目錄??????????0??2018-05-17?20:22??test\bu4d_test

?????目錄??????????0??2018-05-17?20:24??test

-----------?---------??----------?-----??----

?????????????16030030????????????????????14