{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949062,-0.315090,0.000000,0.000000,0.176136,-0.530529,0.829165,0.000000,-0.260711,0.785271,0.561586,0.000000,-1664608.668610,5013863.797703,3561654.990282,1],    "boundingVolume": {    "region": [1.891279,0.596248,1.891416,0.596354,0.000000,8.793916]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1447914.b3dm"}}}