{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948998,-0.315283,0.000000,0.000000,0.176038,-0.529873,0.829606,0.000000,-0.261011,0.785639,0.560932,0.000000,-1666520.203675,5016200.009460,3557497.131295,1],    "boundingVolume": {    "region": [1.891483,0.595458,1.891620,0.595564,0.000000,8.815893]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/4_1071360.b3dm"}}}