[osg-users] osgviewerQT, qt4.4.0 and .osg file

Robert Osfield robert.osfield at gmail.com
Fri Jul 11 02:42:55 PDT 2008


Hi Johan,

I believe what we'd need to do is just enforce the rule that .osg
files all use . for their decimal places, then constrain the writing
and reading of .osg files so that it uses this convention.  Reading is
more straight forward, as it'd just require a modification to
Field::getFloat() method and would certainly be a useful first step.

Robert.

On Fri, Jul 11, 2008 at 10:31 AM, Johan Nouvel
<openscenegraph at archivideo.com> wrote:
> Hi Norman,
>
> Thanks for the link.
> With GDAL way, no need for controlling the output, it's during the reading
> phase that conversion in done
>
> To resume :
> 1- searching local decimal separator
> 2- replace separator character into input string
> 3- convert string using standard method (atof for example)
>
> Step 1 could be done at initialization time.
> Steps 2 and 3 should be done each reading. The overhead is only step 2, as
> step 3 must be and is already called.
>
> As far as I known, only osgDB::Field should be changed, for getFloat and
> calculateFieldType methods.
> With only this, reading an osg file will work regardless of locale.
>
> Robert and others :
> I'm right ? Do you think it worth the effort ? Forgot something ?
>
> Johan.
>
> Norman Vine a écrit :
>>
>> GDAL had a similar issue
>>
>> Here is their custom atof() with some discussion of the issues
>> http://trac.osgeo.org/gdal/browser/trunk/gdal/port/cpl_strtod.cpp
>>
>> Norman
>>
>> _______________________________________________
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>> osg-users at lists.openscenegraph.org
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>
>
> --
> Johan Nouvel, R&D Project Manager
> http://www.archivideo.com
> tel : +33 (0)2 99 86 30 20
> ARCHIVIDEO, 40 rue des Veyettes, 35000 RENNES, FRANCE
>
>
>
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