{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950275,-0.311412,0.000000,0.000000,0.173781,-0.530295,0.829812,0.000000,-0.257871,0.786894,0.560625,0.000000,-1646467.127103,5024206.781167,3555548.285040,1],    "boundingVolume": {    "region": [1.887425,0.595082,1.887524,0.595199,0.000000,8.758932]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1453603.b3dm"}}}