{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950210,-0.311611,0.000000,0.000000,0.174165,-0.531089,0.829223,0.000000,-0.257851,0.786277,0.561499,0.000000,-1646348.352688,5020283.014358,3561103.829781,1],    "boundingVolume": {    "region": [1.887615,0.596092,1.887754,0.596301,0.000000,8.813532]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_1432205.b3dm"}}}