{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948998,-0.315281,0.000000,0.000000,0.176037,-0.529875,0.829604,0.000000,-0.261009,0.785639,0.560933,0.000000,-1666504.129599,5016197.291175,3557508.418002,1],    "boundingVolume": {    "region": [1.891480,0.595460,1.891617,0.595566,0.000000,8.815893]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/4_1071334.b3dm"}}}