{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858497,-0.512819,0.000000,0.000000,0.262618,-0.439642,0.858922,0.000000,-0.439692,0.736078,0.514646,0.000000,-2806906.063067,4698972.730923,3263401.750670,1],    "boundingVolume": {    "region": [2.109179,0.540532,2.109343,0.540657,0.000000,94.497633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/9_270980.b3dm"}}}