{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950382,-0.311086,0.000000,0.000000,0.173989,-0.531544,0.828969,0.000000,-0.257337,0.786175,0.561877,0.000000,-1643067.998117,5019641.982158,3563505.511965,1],    "boundingVolume": {    "region": [1.887083,0.596604,1.887181,0.596703,0.000000,8.795234]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/7_1393996.b3dm"}}}