{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950324,-0.311263,0.000000,0.000000,0.173715,-0.530373,0.829776,0.000000,-0.257737,0.786900,0.560679,0.000000,-1645611.287258,5024244.926939,3555888.285339,1],    "boundingVolume": {    "region": [1.887269,0.595147,1.887368,0.595263,0.000000,8.586513]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1454056.b3dm"}}}