{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950550,-0.310571,0.000000,0.000000,0.173716,-0.531686,0.828934,0.000000,-0.256900,0.786282,0.561928,0.000000,-1640277.137207,5020323.310556,3563829.236918,1],    "boundingVolume": {    "region": [1.886541,0.596665,1.886639,0.596764,0.000000,14.800804]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1394859.b3dm"}}}