{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897870,-0.440261,0.000000,0.000000,0.282643,-0.576424,0.766713,0.000000,-0.336617,0.686498,0.644523,0.000000,-2149977.729582,4384677.939922,4089026.947562,1],    "boundingVolume": {    "region": [2.026622,0.700365,2.026749,0.700434,0.000000,15.447169]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_852756.b3dm"}}}