{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950634,-0.310316,0.000000,0.000000,0.173216,-0.530638,0.829711,0.000000,-0.256931,0.787094,0.560775,0.000000,-1640471.478427,5025487.044121,3556503.745094,1],    "boundingVolume": {    "region": [1.886264,0.595265,1.886379,0.595379,0.000000,8.809876]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/8_1450514.b3dm"}}}