Sebastian Knödel schrieb:
> Andreas Zieringer wrote:
>> Hi Sebastian,
>>
>>
>>> Hi there,
>>>
>>> I would like to access the Display Lists generated by OpenSG.
>>> For the moment I use OpenSG only to handle the geometry using the
>>> scenegraph infrastructure, but I do the rendering using my own tool.
>>> To do so I need the geometry as a display list and as far as I know
>>> OpenSG stores the geometry by default in such a list.
>>> But I wasn't able to get the Display List Id. There is a member of
>>> GeometryBase getGLId() but its protected and I couldn't find a way to
>>> acces it even by reimplementing my own Geometry class, which I derived
>>> from GeometryBase.
>>> My question is:
>>> Is there a possibility to access the display lists, created by OpenSG?
>>> If yes, how does it work?
>>>
>>> Thank you for any feedback
>>>
>>>
>>> Sebastin Knödel
>>>
>> you can use the reflective interface just search for the "GLId" field
>> and read the value.
>>
>> Andreas
>>
>>
> If I understand you right I just read out the GLIdFieldId value of my
> geometry like
>
> int DLid = anyGeo->GLIdFieldId;
>
> but this gives me only the "Field value" which is 21 all the time,
> because its the 21. field in the set.
> Any clue?
this should do the trick.
SFField<Int32> *field = dynamic_cast<SField<Int32>
*>(geo->getField("GLId"));
Int32 glid = field->getValue();
Andreas
> I also tried to cast the GeometryPtr to my own Type myGeometry, which
> doesn't work out right know.
> The compiler tells me that I cannot convert from 'osg::GeometryPtr' to
> 'myGeometry *'.
> The code looks like that
>
> -----
> class myGeometry : public Geometry
> {
> public:
> myGeometry(){};
>
> inline int getDListID(PassiveWindowPtr win) {return
> win->getGLObjectId(getGLId());}
> };
>
> myGeometry* myGeo;
> .
> .
> .
> myGeo = static_cast<myGeometry*>( anyOSGGeo);
> int DLid = myGeo->getDListID(win);
>
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