C++ VRTransformPtr::setName方法代码示例

void OSG::loadXYZ(string path, VRTransformPtr res) {
    cout << "load xyz pointcloud " << path << endl;
    res->setName(path);

    try {

        VRGeoData data;
        vector<float> vertex = vector<float>(6);
        int i=0;

        ifstream file(path);
        while (file >> vertex[i]) {
            i++;
            if (i >= 6) {
                i = 0;
                data.pushVert(Pnt3d(vertex[0], vertex[1], vertex[2]), Vec3d(0,1,0), Color3f(vertex[3]/255.0, vertex[4]/255.0, vertex[5]/255.0));
                data.pushPoint();
            }
        }

        if (data.size()) {
            cout << "  assemble geometry.. " << endl;
            auto geo = data.asGeometry("points");
            res->addChild(geo);
        }
    }
    catch (std::exception& ex) { cerr << "Got an std::exception, what=" << ex.what() << endl; return; }
    catch (...) { cerr << "Got an unknown exception" << endl; return; }
}

void OSG::loadE57(string path, VRTransformPtr res) {
    cout << "load e57 pointcloud " << path << endl;
    res->setName(path);

    try {
        ImageFile imf(path, "r"); // Read file from disk

        StructureNode root = imf.root();
        if (!root.isDefined("/data3D")) { cout << "File doesn't contain 3D images" << endl; return; }

        e57::Node n = root.get("/data3D");
        if (n.type() != E57_VECTOR) { cout << "bad file" << endl; return; }

        VectorNode data3D(n);
        int64_t scanCount = data3D.childCount(); // number of scans in file
        cout << " file read succefully, it contains " << scanCount << " scans" << endl;

        for (int i = 0; i < scanCount; i++) {
            StructureNode scan(data3D.get(i));
            string sname = scan.pathName();

            CompressedVectorNode points( scan.get("points") );
            string pname = points.pathName();
            auto cN = points.childCount();
            cout << "  scan " << i << " contains " << cN << " points\n";

            StructureNode proto(points.prototype());
            bool hasPos = (proto.isDefined("cartesianX") && proto.isDefined("cartesianY") && proto.isDefined("cartesianZ"));
            bool hasCol = (proto.isDefined("colorRed") && proto.isDefined("colorGreen") && proto.isDefined("colorBlue"));
            if (!hasPos) continue;

            if (hasCol) cout << "   scan has colors\n";
            else cout << "   scan has no colors\n";

            for (int i=0; i<proto.childCount(); i++) {
                auto child = proto.get(i);
                cout << "    scan data: " << child.pathName() << endl;
            }

            vector<SourceDestBuffer> destBuffers;
            const int N = 4;
            double x[N]; destBuffers.push_back(SourceDestBuffer(imf, "cartesianX", x, N, true));
            double y[N]; destBuffers.push_back(SourceDestBuffer(imf, "cartesianY", y, N, true));
            double z[N]; destBuffers.push_back(SourceDestBuffer(imf, "cartesianZ", z, N, true));
            double r[N];
            double g[N];
            double b[N];
            if (hasCol) {
                destBuffers.push_back(SourceDestBuffer(imf, "colorRed", r, N, true));
                destBuffers.push_back(SourceDestBuffer(imf, "colorGreen", g, N, true));
                destBuffers.push_back(SourceDestBuffer(imf, "colorBlue", b, N, true));
            }

            int Nchunk = 1e6; // separate in chunks because of tcmalloc large alloc issues
            VRGeoData data;
            unsigned int gotCount = 0;
            CompressedVectorReader reader = points.reader(destBuffers);
            do {
                if (data.size() > Nchunk) {
                    cout << "  assemble geometry.. " << endl;
                    auto geo = data.asGeometry(pname);
                    res->addChild(geo);
                    data = VRGeoData();
                }

                gotCount = reader.read();
                for (unsigned j=0; j < gotCount; j++) {
                    int v;
                    if (hasCol) v = data.pushVert(Pnt3d(x[j], y[j], z[j]), Vec3d(0,1,0), Color3f(r[j]/255.0, g[j]/255.0, b[j]/255.0));
                    else v = data.pushVert(Pnt3d(x[j], y[j], z[j]), Vec3d(0,1,0));
                    data.pushPoint(v);
                }
            } while(gotCount);
            reader.close();

            if (data.size()) {
                cout << "  assemble geometry.. " << endl;
                auto geo = data.asGeometry(pname);
                res->addChild(geo);
            }
        }

        imf.close();
    }
    catch (E57Exception& ex) { ex.report(__FILE__, __LINE__, __FUNCTION__); return; }
    catch (std::exception& ex) { cerr << "Got an std::exception, what=" << ex.what() << endl; return; }
    catch (...) { cerr << "Got an unknown exception" << endl; return; }
}

//.........这里部分代码省略.........
    string line;
    while ( getline(file, line) ) {
        progress->update( line.size() );
        li++;

        for (auto d : states) {
            //if ( line[d.second.size()-1] != ' ') continue; // optimization
            if ( line.compare(0, d.second.size(), d.second) == 0) {
                //if (state != d.first) cout << "got on line " << li << ": " << states[d.first] << " instead of: " << states[state] << endl;
                switch (d.first) {
                    case 0: break;
                    case 1:
                        new_obj = true;
                        if (line.size() > 12) color = toVec3f( line.substr(12) );
                        if (mats.count(color) == 0) {
                            mats[color] = VRMaterial::create("fmat");
                            mats[color]->setDiffuse(color);
                        }

                        if (color != last_col) {
                            new_color = true;
                            last_col = color;
                        }
                        break;
                    case 2:
                        geo.updateN();
                        break;
                    case 3: break;
                    case 4: break;
                    case 5: break;
                }
                state = d.first+1;
                if (state == 7) state = 0;
                break;
            }
        }

        if (line[0] != ' ') continue;
        if (state == 6) continue; // skip color indices

        stringstream ss(line);
        switch (state) {
            case 3:
                while(ss >> v[0] && ss >> v[1] && ss >> v[2] && ss.get()) {
                    if (!new_color && new_obj) new_obj = !geo.inBB(v); // strange artifacts!!
                    geo.updateBB(v);

                    if (new_obj) {
                        new_obj = false;
                        new_color = false;
                        geo.init(geos, mats[color], path, thread);
                    }

                    geo.pos->addValue(v);
                }
                break;
            case 4:
                while(ss >> n[0] && ss >> n[1] && ss >> n[2] && ss.get()) geo.norms->addValue( n );
                break;
            case 5:
                while(ss >> i && ss.get()) if (i >= 0) geo.inds_p->addValue( geo.Np + i );
                break;
            case 0:
                while(ss >> i && ss.get()) if (i >= 0) geo.inds_n->addValue( geo.Nn + i );
                break;
        }
    }

    file.close();
    cout << "\nloaded " << geos.size() << " geometries" << endl;
    if (geos.size() == 0) { progress->reset(); return false; }

    res->setName("factory");
    res->setPersistency(0);

    for (auto g : geos) {
        //Vec3f d = g.vmax - g.vmin;
        //if (d.length() < 0.1) continue; // skip very small objects

        if (g.inds_n->size() != g.inds_p->size()) { // not happening
            cout << " wrong indices lengths: " << g.inds_p->size() << " " << g.inds_n->size() << endl;
            continue;
        }

        if (g.inds_p->size() == 0) { // not happening
            cout << " empty geo: " << g.inds_p->size() << " " << g.inds_n->size() << endl;
            continue;
        }

        res->addChild(g.geo);

        GeoUInt32PropertyRecPtr Length = GeoUInt32Property::create();
        Length->addValue(g.geo->getMesh()->getIndices()->size());
        g.geo->setLengths(Length);
    }

    cout << "\nloaded2 " << res->getChildrenCount() << " geometries" << endl;
    progress->finish();
    return true;
}