{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950151,-0.311792,0.000000,0.000000,0.173922,-0.530007,0.829966,0.000000,-0.258234,0.786939,0.560396,0.000000,-1648783.474294,5024486.131832,3554089.678582,1],    "boundingVolume": {    "region": [1.887792,0.594798,1.887956,0.594929,0.000000,8.809282]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1460017.b3dm"}}}