{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950687,-0.310153,0.000000,0.000000,0.173040,-0.530407,0.829895,0.000000,-0.256854,0.787314,0.560502,0.000000,-1639975.191301,5026888.379530,3554763.506339,1],    "boundingVolume": {    "region": [1.886092,0.594934,1.886208,0.595048,0.000000,8.790017]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/5_1449361.b3dm"}}}