{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950583,-0.310470,0.000000,0.000000,0.173660,-0.531703,0.828935,0.000000,-0.256817,0.786310,0.561927,0.000000,-1639746.353898,5020503.252686,3563820.069015,1],    "boundingVolume": {    "region": [1.886435,0.596664,1.886533,0.596762,0.000000,11.035601]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/7_1394848.b3dm"}}}