{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949482,-0.313821,0.000000,0.000000,0.175418,-0.530737,0.829184,0.000000,-0.259667,0.785638,0.561557,0.000000,-1657942.556940,5016201.699187,3561473.595352,1],    "boundingVolume": {    "region": [1.889961,0.596226,1.890060,0.596308,0.000000,8.785490]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1444254.b3dm"}}}