OSGStripeGraphOp.cpp

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/***************************************************************************\
*                             Includes                                    *
\***************************************************************************/

#include <OSGStripeGraphOp.h>
#include <OSGGeoFunctions.h>

OSG_USING_NAMESPACE

/***************************************************************************\
 *                            Description                                  *
\***************************************************************************/

/***************************************************************************\
 *                           Instance methods                              *
\***************************************************************************/

/*-------------------------------------------------------------------------*\
 -  public                                                                 -
\*-------------------------------------------------------------------------*/


/*------------- constructors & destructors --------------------------------*/

StripeGraphOp::StripeGraphOp(const char* name): 
    SingleTypeGraphOpGeo(name),
    _force(false),
    _stitch(false)
{
}

StripeGraphOp::~StripeGraphOp(void)
{
}

GraphOp *StripeGraphOp::create()
{
    StripeGraphOp *inst = new StripeGraphOp();
    return inst;
}

void StripeGraphOp::setParams(const std::string params)
{
    ParamSet ps(params);   
    
    ps("force",  _force);
    ps("stitch",  _stitch);
    
    std::string out = ps.getUnusedParams();
    if(out.length())
    {
        FWARNING(("StripeGraphOp doesn't have parameters '%s'\n.",
                out.c_str()));
    }
}

std::string StripeGraphOp::usage(void)
{
    return 
    "Stripe: Stripe Geometries\n"
    "Params: name (type, default)\n"
    "  force  (bool, false): force striping even if already striped\n"
    "  stitch (bool, false): stitch strips using degenerate triangles\n";
}

bool StripeGraphOp::travNodeEnter(NodePtr node)
{
    GeometryPtr geo = GeometryPtr::dcast(node->getCore());

    if(geo != NullFC)
    {
        // Check if it's striped already
        if (!_force)
        {
            GeoPTypesPtr t = geo->getTypes();
            
            for(UInt32 i = 0; i < t->size(); ++i)
            {
                if(t->getValue(i) == GL_TRIANGLE_STRIP)
                {
                    return true;
                }
            }
        }
        createSharedIndex(geo);
        createOptimizedPrimitives(geo, 1, true, true, 16, false, _stitch);
    }
    
    return true;
}

bool StripeGraphOp::travNodeLeave(NodePtr)
{
    return true;
}

/*-------------------------------------------------------------------------*\
 -  protected                                                              -
\*-------------------------------------------------------------------------*/

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