vtkPLYReader can't read files without faces
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
Current vtkPLYReader does not allow reading files that do not contain faces (i.e. files with only points or points+normals). It simply quits with an error "Cannot read geometry". I modified this class to allow this type of file to be read, along with making the error output a bit more specific in the case that there actually is a problem. In the process I think the whole section that searches for properties became a bit clearer - as previously it was all embedded in a single if statement.