{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898748,-0.438466,0.000000,0.000000,0.283258,-0.580609,0.763320,0.000000,-0.333749,0.684104,0.648547,0.000000,-2131702.585382,4369466.945956,4114624.369914,1],    "boundingVolume": {    "region": [2.024605,0.705614,2.024770,0.705733,0.000000,17.268650]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1832921.b3dm"}}}