{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949082,-0.315030,0.000000,0.000000,0.176094,-0.530513,0.829184,0.000000,-0.260668,0.785306,0.561557,0.000000,-1664331.328932,5014086.011840,3561472.996052,1],    "boundingVolume": {    "region": [1.891216,0.596213,1.891353,0.596320,0.000000,8.768397]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1447160.b3dm"}}}