readerwritergeo.cpp

最新osg包

                                }
                            }
                            int nv=getprim((*itr), *gi);
                            {
                                const vertexInfo *vinf=gi->getVinf();
                                if (vinf->getNorms() && vinf->getNorms()->size()>0) {
                                    gi->getGeom()->setNormalArray(vinf->getNorms());
                                    gi->getGeom()->setNormalBinding(osg::Geometry::BIND_PER_VERTEX);
                                } else {
                                    gi->getGeom()->setNormalBinding(osg::Geometry::BIND_OFF);
                                }
                            }
                            if (hasColorAction(bhv)) addPolyActions(bhv, *gi, nv);
                            
                            if (dstyle==GEO_POLY_DSTYLE_SOLID_BOTH_SIDES || dstyle == GEO_POLY_DSTYLE_SOLID) {
                                osg::DrawArrays *drw=new osg::DrawArrays(osg::PrimitiveSet::POLYGON,gi->getStart(nv),nv);                                
                                gi->getGeom()->addPrimitiveSet(drw);
                            }
                            if (dstyle == GEO_POLY_DSTYLE_OPEN_WIRE) {
                                osg::DrawArrays *drw=new osg::DrawArrays(osg::PrimitiveSet::LINE_STRIP,gi->getStart(nv),nv);
                                gi->getGeom()->addPrimitiveSet(drw);
                            }
                            if (dstyle == GEO_POLY_DSTYLE_CLOSED_WIRE) {
                                osg::DrawArrays *drw=new osg::DrawArrays(osg::PrimitiveSet::LINE_LOOP,gi->getStart(nv),nv);
                                gi->getGeom()->addPrimitiveSet(drw);
                            }
                            if (dstyle==GEO_POLY_DSTYLE_POINTS) {
                                osg::DrawArrays *drw=new osg::DrawArrays(osg::PrimitiveSet::POINTS,gi->getStart(nv),nv);
                                gi->getGeom()->addPrimitiveSet(drw);
                            }
                        }
                    }
                }
                {
                    int igeom=0;
                    for (std::vector<geoInfo>::iterator itr=ia.begin();
                    itr!=ia.end();
                    ++itr) {
                        if ((*itr).getTexture() >=0) {
                            osg::Vec2Array *txa=ia[igeom].getVinf()->getTexCoords();
                            if (txa->size() > 0 ) {
                                ((*itr).getGeom())->setTexCoordArray(0, txa);
                            }
                        }
                        igeom++;
                    }
                }
            }
            return gr.size();
        }
        void makeTexts(georecord grec, Group *nug)
        {    // makeTexts adds a set of text+transform Geometrys attached to current parent (Group nug)
            const std::vector<georecord *> gr=grec.getchildren();
            std::vector<osg::Geometry *> geom;
            if (gr.size()>0) {
                std::vector<int> ia; // list of texture indices found in this geode; sort into new 
                for (std::vector<georecord *>::const_iterator itr=gr.begin();
                itr!=gr.end();
                ++itr) {
                    if ((*itr)->getType()==DB_DSK_TEXT) {
                        osg::MatrixTransform *text=makeText((*itr));
                        if (text) nug->addChild(text);
                    }
                }
                // osg::notify(osg::WARN) << vinf;
            }
            return;
        }
        Group *makeTextGeode(const georecord *gr)
        { // in geo text is defined with a matrix included in the geo.geode (gr is this geo.geode)
            // - we need to create this tree to render text
            return NULL; // temporary disable april 2003
            Group *nug=new Group;
            const geoField *gfd=gr->getField(GEO_DB_RENDERGROUP_MAT);
            // may be used in future const unsigned int imat=gfd ? gfd->getInt():0;
            gfd=gr->getField(GEO_DB_NODE_NAME);
            if (gfd) {
                nug->setName(gfd->getChar());
            }
            makeTexts((*gr),nug);
            if (nug->getNumChildren() <=0) {
                nug=NULL;
            }
            return nug;
        }
        Group *makeLightPointGeodes(const georecord *gr) {
            const geoField *gfd=gr->getField(GEO_DB_RENDERGROUP_MAT);
            Group *nug=new Group;
            gfd=gr->getField(GEO_DB_NODE_NAME);
            if (gfd) {
                char *name = gfd->getChar();
                nug->setName(name);
            }
            makeLightPointGeometry(gr,nug);
            if (nug->getNumChildren() <=0) {
                nug=NULL;
            }
            return nug;
        }
        Group *makeAnimatedGeodes(const georecord *gr)
        { // create a group full of animated geodes.  Used for any animations applied to facets!
            // movement actions require a transform node to be inserted, and this cannot be 
            // derived from Geode.  So create a group, add matrix transform(s) for each animated polygon
            const geoField *gfd=gr->getField(GEO_DB_RENDERGROUP_MAT);
            const int imat=gfd ? gfd->getInt():0;
       //     gfd=gr->getField(GEO_DB_RENDERGROUP_IS_BILLBOARD);
         //   bool isbillb = gfd ? gfd->getBool() : false;
            Group *nug=new Group;
       /*     if (isbillb) {
                Billboard *bilb= new Billboard ;
                bilb->setAxis(Vec3(0,0,1));
                bilb->setNormal(Vec3(0,-1,0));
                nug=bilb;
            } else {
                nug=new Geode;
            } */
            gfd=gr->getField(GEO_DB_NODE_NAME);
            if (gfd) {
                char *name = gfd->getChar();
                nug->setName(name);
            }
            int nans=makeAnimatedGeometry((*gr),imat,nug);
            if (nans <=0) {
                nug=NULL;
            }
            return nug;
        }
        Geode *makeGeode(const georecord &gr)
        {
            const geoField *gfd=gr.getField(GEO_DB_RENDERGROUP_MAT);
            const unsigned int imat=gfd ? gfd->getInt():0;
            gfd=gr.getField(GEO_DB_RENDERGROUP_BILLBOARD);
            bool isbillb = gfd ? gfd->getBool() : false;
            osg::Geode *nug;
            if (isbillb) {
                Billboard *bilb= new Billboard ;
                bilb->setAxis(Vec3(0,0,1));
                bilb->setNormal(Vec3(0,-1,0));
                nug=bilb;
            } else {
                nug=new Geode;
            }
            int nchild=makeGeometry(gr,imat,nug);
            if (nchild>0) { // complete the geode
                gfd=gr.getField(GEO_DB_NODE_NAME);
                if (gfd) {
                    nug->setName(gfd->getChar());
                }
                return nug;
            } else {
                return NULL;
            }
        }
        osg::Group *makePage(const georecord *gr)
        {
            osg::Group *gp=new Group;
            const geoField *gfd=gr->getField(GEO_DB_NODE_NAME);
            if (gfd) {
                gp->setName(gfd->getChar());
            }
            return gp;
        }
        osg::Group *setmatrix(const georecord *gr) { // find one of the types of matrix supported
            const geoField *gfd=gr->getField(GEO_DB_GRP_MATRIX_TRANSFORM);
            if (!gfd) gfd=gr->getField(GEO_DB_GRP_TRANSLATE_TRANSFORM);
            if (!gfd) gfd=gr->getField(GEO_DB_GRP_ROTATE_TRANSFORM);
            if (!gfd) gfd=gr->getField(GEO_DB_GRP_SCALE_TRANSFORM);
            if (gfd) {
                MatrixTransform *tr=new MatrixTransform;
                osg::Matrix mx;
                float * m44=gfd->getMat44Arr();
                mx.set(m44); // hope uses same convention as OSG else will need to use set(m44[0],m44[1]...)
                tr->setMatrix(mx);
                return tr;
            } else {
                return NULL;
            }
        }
        osg::Group *makeGroup(const georecord *gr) { // group or Static transform
            osg::Group *gp=setmatrix(gr);
            if (!gp) {
                gp=new osg::Group;
            }
            const geoField *gfd=gr->getField(GEO_DB_NODE_NAME);
            if (gfd) {
                gp->setName(gfd->getChar());
            }
            return gp;
        }
        osg::Group *makeSwitch(const georecord *gr)
        {
            osg::Switch *sw=new Switch;
            const geoField *gfd=gr->getField(GEO_DB_SWITCH_CURRENT_MASK);
            sw->setAllChildrenOff();
            if (gfd) {
                int imask;
                
                imask=gfd->getInt();
                
                // set the bits in the osg::Switch.
                int selector_mask = 0x1;
                for(int pos=0;pos<32;++pos)
                {
                    sw->setValue(pos,((imask&selector_mask)!=0)); 
                    selector_mask <<= 1;
                }
                osg::notify(osg::WARN) << gr << " imask " << imask << std::endl;
            } else {
                sw->setSingleChildOn(0);
                osg::notify(osg::WARN) << gr << " Switch has No mask- only 1 child " << std::endl;
            }
            gfd=gr->getField(GEO_DB_NODE_NAME);
            if (gfd) {
                sw->setName(gfd->getChar());
            }
            return sw;
        }
        
        osg::Sequence *makeSequence(const georecord *gr)
        {
            Sequence *sq=new Sequence;
            const geoField *gfd=gr->getField(GEO_DB_NODE_NAME);
            if (gfd) {
                sq->setName(gfd->getChar());
            }
            return sq;
        }
        osg::LOD *makeLOD(const georecord *gr)
        {
            osg::LOD *gp=new LOD;
            const geoField *gfd=gr->getField(GEO_DB_LOD_IN);
            float in  = gfd ? gfd->getFloat() : 100.0;
            gfd=gr->getField(GEO_DB_LOD_OUT);
            float out = gfd ? gfd->getFloat() : 0.0;
            gp->setRange(0,out,in);
            gfd=gr->getField(GEO_DB_NODE_NAME);
            if (gfd) {
                gp->setName(gfd->getChar());
            }
            return gp;
        }
        osg::Drawable* createClipSurface(float xMin,float xMax,float yMin,float yMax,float z)
        {            // set up the Geometry that defines the clipped region.
            osg::Geometry* geom = new osg::Geometry;
            
            osg::Vec3Array* coords = new osg::Vec3Array(4);
            (*coords)[0].set(xMin,yMax,z);
            (*coords)[1].set(xMin,yMin,z);
            (*coords)[2].set(xMax,yMin,z);
            (*coords)[3].set(xMax,yMax,z);
            geom->setVertexArray(coords);
            
            geom->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::QUADS,0,4));
            
            return geom;
        }
        Group *makeClipRegion(const georecord *gr) {
            GeoClipRegion *clp=new GeoClipRegion;
            const geoField *gfd=gr->getField(GEO_DB_NODE_NAME);
            if (gfd) {
                clp->setName(gfd->getChar());
            }
            gfd=gr->getField(140);
            float *lleft = (gfd) ? (gfd->getVec3Arr()):NULL;
            gfd=gr->getField(141);
            float *uright= (gfd) ? (gfd->getVec3Arr()):NULL;
            if (uright && lleft) {
                Geode *geod=new Geode;
                Drawable *drw=createClipSurface(lleft[0],uright[0],lleft[1],uright[1],lleft[2]);
                geod->addDrawable(drw);
                clp->addClipNode(geod);
            }
            return clp;
        }

        geoHeader *makeHeader(cons