{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949021,-0.315213,0.000000,0.000000,0.175976,-0.529815,0.829655,0.000000,-0.260969,0.785706,0.560857,0.000000,-1666250.714966,5016626.171527,3557025.580931,1],    "boundingVolume": {    "region": [1.891409,0.595368,1.891546,0.595474,0.000000,8.811778]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/3_1072337.b3dm"}}}