{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950034,-0.312146,0.000000,0.000000,0.174062,-0.529767,0.830090,0.000000,-0.258566,0.786961,0.560211,0.000000,-1650904.839643,5024624.541448,3552916.953180,1],    "boundingVolume": {    "region": [1.888165,0.594575,1.888329,0.594706,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1460821.b3dm"}}}