CGAL users discussion list

[Andreas Fabri <>]

In fact it can read binary, but when we implemented it we read:

A binary STL file has an 80-character header (which is generally 
ignored, but should never begin with "solid" because that will lead most 
software to assume that this is an ASCII STL file
source: https://en.wikipedia.org/wiki/STL_(file_format)#Binary_STL

It is fixed in the master branch on github.


https://github.com/CGAL/cgal/blob/master/Polyhedron_IO/include/CGAL/IO/STL_reader.h

Alternatively, replace the word solid in your binary file .

andreas


On 2/9/2018 9:57 AM, Riedel, Torge wrote:
> Hi,
>
> Thank you very much. I think I searched in the wrong place.
> Nevertheless I was not able to read my STL since it is in binary format. (File starts 
> with "solid binary"). CGAL::read_STL continues reading it and does not stop. 
> So maybe there is a check missing for binary format.
>
> Any chance to read binary STL files with CGAL?
>
> Kind regards
> Torge
>
> > -----Ursprüngliche Nachricht-----
> > Von: 
> >
> >  
> > [mailto:]
> >  Im
> > Auftrag von Andreas Fabri
> > Gesendet: Freitag, 9. Februar 2018 08:04
> > An: 
> >
> > Betreff: Re: [cgal-discuss] Support for stl files
> >
> > Hello,
> >
> >
> > You can call
> >     bool
> >     read_STL( std::istream& input,
> >               std::vector< cpp11::array<double,3> >& points,
> >               std::vector< cpp11::array<int,3> >& facets,
> >               bool verbose = false)
> > in
> >
> > CGAL-4.11/include/CGAL/IO/STL_reader.h
> >
> >
> >
> >    std::ifstream input(argv[1], std::ios::binary);
> >     std::vector< CGAL::cpp11::array<double,3> > points;
> >     std::vector< CGAL::cpp11::array<int,3> > triangles;
> >
> >     CGAL::read_STL(input,
> >                    points,
> >                    triangles);
> >
> >     std::cout << points.size() << "  "  << triangles.size() << std::endl;
> >     Mesh m;
> >     if
> > (CGAL::Polygon_mesh_processing::is_polygon_soup_a_polygon_mesh(trian
> > gles)){
> >       std::cout << "it is a polygon mesh" << std::endl;
> >
> > CGAL::Polygon_mesh_processing::polygon_soup_to_polygon_mesh(points,
> > triangles, m);
> >     }
> >
> >
> > Best regards,
> >
> > Andreas
> >
> > On 2/8/2018 4:19 PM, Riedel, Torge wrote:
> > > Hi,
> > >
> > > is there an api in cgal framework for reading / writing stl files? I
> > > have found api for reading / writing OFF data. My evaluation file is
> > > in stl format.
> > >
> > > Kind regards
> > >
> > > Torge
> > >
> > >
> > > CENIT AG, Industriestrasse 52-54, 70565 Stuttgart, Tel.: +49 711
> > > 7825-30, Fax: +49 711 7825-4000, Internet: www.cenit.com
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> >
> > --
> > Andreas Fabri, PhD
> > Chief Officer, GeometryFactory
> > Editor, The CGAL Project
> >
> > phone: +33.492.954.912    skype: andreas.fabri
> >
> > --
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>
> CENIT AG, Industriestrasse 52-54, 70565 Stuttgart, Tel.: +49 711 7825-30, 
> Fax: +49 711 7825-4000, Internet: www.cenit.com
> Geschaeftsstellen: Berlin, Frankfurt, Hamburg, Hannover, Muenchen, Oelsnitz, 
> Ratingen, Saarbruecken
> Vorstandsmitglieder: Kurt Bengel, Matthias Schmidt
> Aufsichtsratsmitglieder: Andreas Schmidt (Vorsitzender des Aufsichtsrats), 
> Hubert Leypoldt, Andreas Karrer
> Bankverbindungen:
> Deutsche Bank (BLZ 600 700 70) Kto. 1661 040 IBAN : DE85 6007 0070 0166 1040 
> 00 SWIFT-CODE : DEUTDESS,
> Commerzbank (BLZ 600 400 71) Kto. 532 015 500 IBAN : DE83 6004 0071 0532 0155 
> 00 SWIFT-Code : COBADEFF600,
> Registergericht: Amtsgericht Stuttgart
> Handelsregister: HRB Nr. 19117
> Umsatzsteuer: ID-Nr. DE 147 862 777

--
Andreas Fabri, PhD
Chief Officer, GeometryFactory
Editor, The CGAL Project

phone: +33.492.954.912    skype: andreas.fabri