{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897727,-0.440552,0.000000,0.000000,0.282891,-0.576458,0.766596,0.000000,-0.336787,0.686283,0.644663,0.000000,-2151068.983348,4383308.717261,4089914.940750,1],    "boundingVolume": {    "region": [2.026946,0.700548,2.027073,0.700616,0.000000,50.720461]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/7_857910.b3dm"}}}