{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950150,-0.311794,0.000000,0.000000,0.173836,-0.529741,0.830154,0.000000,-0.258295,0.787118,0.560116,0.000000,-1649172.057099,5025623.523181,3552312.783061,1],    "boundingVolume": {    "region": [1.887795,0.594460,1.887959,0.594591,0.000000,8.814051]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1458286.b3dm"}}}