#75 PLY doesn't support double / float64

[Bryan Klingner]

When opening a PLY with vertex (or other elements) of type "double" or "float64," the importer fails with an error. "float" or "float32" work fine.

[Paolo Cignoni]

Thanks for the bug submission,
could you provide a ply file that meshlab fails to load?
Just to be sure to patch it in the correct way...

cheers
P.

[Nobody/Anonymous]

It also doesn't load coordinates of type 'char','uchar','short','ushort','int', or 'uint'.

It also requires vertex type to be int (it won't load 'char','uchar','short','ushort', or 'float').

I am using Matlab functions plyread and plywrite (by Pascal Getreuer 2004) which tend to exercise all these other types.

Example problem file:
ply
format ascii 1.0
comment created by MATLAB plywrite
element vertex 8
property char x
property char y
property char z
element face 6
property list uchar char vertex_indices
end_header
0 0 0
0 0 1
0 1 1
0 1 0
1 0 0
1 0 1
1 1 1
1 1 0
4 0 1 2 3
4 7 6 5 4
4 0 4 5 1
4 1 5 6 2
4 2 6 7 3
4 3 7 4 0