Hi Zeeper,
There is no way to do this unless you add additional information to your
"sphere" and "cylinder" Geometry instances. A Geometry in OpenSG holds
generic geometric data(positions, normals, texCoords, etc). It does not
know if the underlying geometric data represents a sphere or cylinder.
However, you can add attachments to a Geometry that you could use to
distinguish between different shapes.
As an example using OpenSG 2:
#include <OpenSG/OSGSimpleGeometry.h>
#include <OpenSG/OSGNameAttachment.h>
...
OSG_USING_NAMESPACE
...
//Create a Sphere Geoemtry
GeometryRecPtr ExampleSphereGeo =
makeSphereGeo<http://www.opensg.org/doxygen/namespaceOSG.html#aabcd434346baf44743d93a61c5b889ab>(2,
1.0);
//Add a name attachment to the goemetry
setName<http://www.opensg.org/doxygen/namespaceOSG.html#afc7762df3d105a1915f08614cb5a41f8>(ExampleSphereGeo,
"Sphere_Shape");
//Create a Cylinder Geometry
GeometryRecPtr ExampleCylinderGeo =
makeCylinderGeo<http://www.opensg.org/doxygen/namespaceOSG.html#a6099339ee81a34f95e792c6f976a6577>(2.0,
1.0, 24, true, true, true);
//Add a name attachment to the geometry
setName<http://www.opensg.org/doxygen/namespaceOSG.html#afc7762df3d105a1915f08614cb5a41f8>
(ExampleCylinderGeo,"Cylinder_Shape");
...
//At some other location
NodeRecPtr SomeNodeToTest = ...;
if(SomeNodeToTest->getCore()->getType().isDerivedFrom(Geometry::getClassType()))
{
Char8* GeoName = getName(SomeNodeToTest->getCore());
if(GeoName != NULL)
{
if(strcmp(GeoName,"Sphere_Shape") == 0)
{
//Do Sphere stuff
}
else if(strcmp(GeoName,"Cylinder_Shape") == 0)
{
//Do Cylinder stuff
}
}
}
On Sat, Feb 5, 2011 at 11:33 AM, siper style <siperst...@gmail.com> wrote:
> Hello,
>
> I want to get the shape of a geometry.
> I have many geometries, I did
> node->getCore->getTypeName() to check if it is a geometry,
>
You will want to use
node->getCore()->getType().isDerivedFrom(Geometry::getClassType()) instead.
> Now I am not able to know if the geometry is a sphere or a cylinder.
> I only want to do something to the spheres and not the cylinders
>
> Zeeper
>
>
> ------------------------------------------------------------------------------
> The modern datacenter depends on network connectivity to access resources
> and provide services. The best practices for maximizing a physical server's
> connectivity to a physical network are well understood - see how these
> rules translate into the virtual world?
> http://p.sf.net/sfu/oracle-sfdevnlfb
> _______________________________________________
> Opensg-users mailing list
> Opensg-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/opensg-users
>
>
------------------------------------------------------------------------------
The modern datacenter depends on network connectivity to access resources
and provide services. The best practices for maximizing a physical server's
connectivity to a physical network are well understood - see how these
rules translate into the virtual world?
http://p.sf.net/sfu/oracle-sfdevnlfb
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