{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950039,-0.312132,0.000000,0.000000,0.174056,-0.529776,0.830086,0.000000,-0.258554,0.786960,0.560217,0.000000,-1650824.991623,5024622.539663,3552956.618039,1],    "boundingVolume": {    "region": [1.888151,0.594582,1.888315,0.594714,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1460910.b3dm"}}}