{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.895909,-0.444237,0.000000,0.000000,0.283897,-0.572545,0.769152,0.000000,-0.340746,0.687195,0.641603,0.000000,-2176326.332687,4389078.230427,4070450.072157,1],    "boundingVolume": {    "region": [2.031064,0.696533,2.031173,0.696640,0.000000,40.258738]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_619758.b3dm"}}}