REAL numbers written by ExportFileAsIFC() are in an invalid format

[brunopostle]

Files created using ExportFileAsIFC() have invalid real numbers, validation of a file generated by the hello-world/examples/web-ifc-three/editing/ tool gives lots of errors like this:

$ python -m ifcopenshell.validate ~/Downloads/modified.ifc
For instance:
    #6=IfcCartesianPoint((0,0,0))
                         ^^^^^^^ 
With attribute:
    <type IfcLengthMeasure: <real>>
Value:
    0
Not valid

Here is how IfcOpenShell writes reals

Basically, whole number real numbers need to be written with a trailing '.', like so:

#6=IfcCartesianPoint((0.,0.,0.));

..and exponents need to be written with a 'E' not 'e', i.e. this:

#13=IFCGEOMETRICREPRESENTATIONCONTEXT($,'Model',3,1.000000000000001e-05,#12,$);

should be:

#13=IFCGEOMETRICREPRESENTATIONCONTEXT($,'Model',3,1.000000000000001E-05,#12,$);

[brunopostle]

Another error in the exported file, the FILE_NAME header should have 7 attributes not 5, i.e this is invalid:

FILE_NAME('no name', '', (''), (''), 'web-ifc-export');

See diagnosis in IfcOpenShell/IfcOpenShell#2358

[aka-blackboots]

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[agviegas]

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[Mivit]

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