{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944311,-0.329055,0.000000,0.000000,0.183937,-0.527855,0.829178,0.000000,-0.272271,0.781353,0.561566,0.000000,-1738417.130876,4988843.781686,3561528.902786,1],    "boundingVolume": {    "region": [1.906042,0.596240,1.906157,0.596315,0.000000,8.755452]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_729950.b3dm"}}}