source: GTP/trunk/Lib/Vis/Preprocessing/src/QtInterface/ObjectPlacer.cpp @ 2720

#include "ObjectPlacer.h"
#include "Matrix4x4.h"
#include "SceneGraph.h"



namespace GtpVisibilityPreprocessor 
{

// ---------------------------------------------------------------------------
//  ObjectPlacer implementation
// ---------------------------------------------------------------------------

ObjectPlacer::ObjectPlacer()
: mCurrentObject(0)
{
}


void ObjectPlacer::AddObject(SceneGraphLeaf *obj)
{
        mLibraryObjects.push_back(obj);
}


void ObjectPlacer::NextObject()
{
        mCurrentObject = (mCurrentObject + 1) % (int)mLibraryObjects.size();
}


void ObjectPlacer::PreviousObject()
{
        mCurrentObject = (mCurrentObject - 1) % (int)mLibraryObjects.size();
}


SceneGraphLeaf *ObjectPlacer::GetCurrentObject() 
{ 
        if (mCurrentObject >= mLibraryObjects.size())
                return NULL;

        return mLibraryObjects[mCurrentObject];
}


void ObjectPlacer::PlaceObject(const Vector3 &pt)
{
        Vector3 p = pt;

        SceneGraphLeaf *obj = mLibraryObjects[mCurrentObject];

        // set pivot to ground of object
        p.y -= obj->GetOriginalBox().Min().y;
        Matrix4x4 trafo = TranslationMatrix(p);

        obj->LoadTransform(trafo);
}


void ObjectPlacer::PlaceObject(SceneGraphLeaf *leaf, const Vector3 &pt)
{
        AxisAlignedBox3 box = leaf->GetBox();

        Vector3 p = box.Center() - pt;

        // set pivot to ground of object
        //p.y -= obj->GetOriginalBox().Min().y;
        Matrix4x4 trafo = TranslationMatrix(p);

        leaf->ApplyTransform(trafo);
}

}