{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950023,-0.312181,0.000000,0.000000,0.174052,-0.529670,0.830154,0.000000,-0.258615,0.787013,0.560115,0.000000,-1651219.636516,5024954.070390,3552308.668854,1],    "boundingVolume": {    "region": [1.888202,0.594459,1.888366,0.594591,0.000000,9.930278]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1460075.b3dm"}}}