{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897720,-0.440567,0.000000,0.000000,0.282899,-0.576448,0.766600,0.000000,-0.336801,0.686282,0.644657,0.000000,-2151156.343694,4383299.836511,4089878.754632,1],    "boundingVolume": {    "region": [2.026963,0.700540,2.027089,0.700609,0.000000,50.720461]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/7_857760.b3dm"}}}