{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950046,-0.312110,0.000000,0.000000,0.174037,-0.529761,0.830099,0.000000,-0.258539,0.786980,0.560197,0.000000,-1650731.031259,5024744.322545,3552828.903898,1],    "boundingVolume": {    "region": [1.888127,0.594558,1.888291,0.594689,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1458764.b3dm"}}}