{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949613,-0.313426,0.000000,0.000000,0.175037,-0.530325,0.829529,0.000000,-0.259449,0.786075,0.561046,0.000000,-1656546.949299,5018984.040209,3558223.508691,1],    "boundingVolume": {    "region": [1.889545,0.595608,1.889644,0.595690,0.000000,8.737684]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/4_1366126.b3dm"}}}