how to judge polygon each primitive is open or closed

[Arthur~Chiu]

GA_FOR_ALL_PRIMITIVES(gdp, prim)

{

 

    if(prim->getTypeId() == GA_PRIMPOLY)

    {

        cout<<"is polygon"<<endl;

    }

}

 

 

i also want to filter closed primitive polygon 

how to do this ,i find GEO_Face has operation -GEO_Face::isclosed();

can i use it ?

[malexander]

A prim that reports GA_PRIMPOLY as its type is a GEO_PrimPoly object, which you can safely cast to a GEO_Face (or GEO_PrimPoly). Then you can call faceprim->isClosed().

[Arthur~Chiu]

Posted Today, 02:54 AM

A prim that reports GA_PRIMPOLY as its type is a GEO_PrimPoly object, which you can safely cast to a GEO_Face (or GEO_PrimPoly). Then you can call faceprim->isClosed().

 

how to do this?

can you show me the code? thanks

[malexander]

GA_FOR_ALL_PRIMITIVES(gdp, prim)

{

    if(prim->getTypeId() == GA_PRIMPOLY)

    {

const GEO_Face *faceprim = static_cast<const GEO_Face *>(prim);

if(faceprim->isClosed())

        cout<<"is closed polygon"<<endl;

else

        cout<<"is open polygon"<<endl;

    }

}