matlab .m file 3D input

1/ read_dxf will load an ASCII dxf file into MATLAB.

http://www.mathworks.de/matlabcentral/fileexchange/loadFile.do?objectId=7118&objectType=file

2/Read and write the 3D data PLY file format.

http://www.mathworks.de/matlabcentral/fileexchange/loadFile.do?objectId=5459&objectType=file

3/ This is a MATLAB class that allows the user to read in Autocad (.dxf) and 3D Studio Max (.3ds) files.
The class can be plotted and functions are included for simple model manipulation (translation, rotation, magnification, superposition)

http://www.mathworks.de/matlabcentral/fileexchange/loadFile.do?objectId=7940&objectType=file