{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949086,-0.315017,0.000000,0.000000,0.176001,-0.530258,0.829367,0.000000,-0.260715,0.785485,0.561286,0.000000,-1664634.074089,5015219.518187,3559746.710421,1],    "boundingVolume": {    "region": [1.891203,0.595885,1.891340,0.595992,0.000000,13.459489]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1374380.b3dm"}}}