Hi Eric,
You need to add some extra RTTI info to your custom class to enable
the .osg wrappers to fine your class. Add:
META_Node("osgMyClass","MyClass")
To your class definitions. See include/osg/Group and other subclasses
of node to see this in action.
Robert.
On Mon, Aug 24, 2009 at 9:43 AM, Eric
Pouliquen<[email protected]> wrote:
> Hi all,
>
> I'm trying to write a simple read/write acces to .osg files for my own class,
> using the REGISTER_DOTOSGWRAPPER macro, but nothing happens...
>
> This is what I do:
>
> in my IO.h:
>
>
> Code:
> #include "MyClass.h"
>
> using namespace osgDB;
>
> bool MyClass_readLocalData(osg::Object&, osgDB::Input&);
> bool MyClass_writeLocalData(const osg::Object&, osgDB::Output&);
>
> REGISTER_DOTOSGWRAPPER(MyClass)
> (
> new osgMyClass::MyClass,
> "MyClass",
> "Object Node Group MyClass",
> &MyClass_readLocalData,
> &MyClass_writeLocalData
> );
>
>
>
> and in IO.cpp:
>
>
> Code:
> #include "IOPlanet.h"
>
> bool MyClass_readLocalData(osg::Object& obj, osgDB::Input& fr)
> {
> std::cout << "Hello in Read!" << std::endl;
> }
>
> bool MyClass_writeLocalData(const osg::Object& obj, osgDB::Output& fout)
> {
> std::cout << "Hello in Write!" << std::endl;
> }
>
>
>
> and the "MyClass" class is the simplest thing in the world:
>
> #include <iostream>
>
>
> Code:
> namespace osgMyClass
> {
>
> class MyClass: public osg::Group
> {
> public:
>
> MyClass() { valeur = 1.0f; std::cout << "Hello
> MyClass!"<< std::endl; }
> ~MyClass() {}
>
> public:
>
> float value;
> };
>
> }
>
>
>
> I'm generating a dll with the IO files, and I put it in the osgPlugins
> directory, but the "Hello" messages are never readable, trying this in the
> main of an app:
>
>
> Code:
> osgMyClass::MyClass* test= new osgMyClass::MyClass();
>
> osgDB::writeNodeFile((osg::Node&)*test, "test.osg");
> osgDB::writeObjectFile((osg::Object&)*test, "test2.osg");
>
>
>
> So where is the mistake ? Does the name of the dll must be something like
> "osgdb_osgMyClass" ? Changing its name changes nothing... seems OSG doesn't
> find it.
>
> I try before to read and write data using the osgPlugins scheme with :
> REGISTER_OSGPLUGIN(plt, ReaderWriterPLT), and all works well. So I understand
> the process with plugins, but not with dotosgwrappers...
>
> If someone can help me, it's seems to be a little thing missing at a little
> place :)
>
> thanks a lot
>
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=16629#16629
>
>
>
>
>
> _______________________________________________
> osg-users mailing list
> [email protected]
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>
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