{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858394,-0.512991,0.000000,0.000000,0.262550,-0.439327,0.859104,0.000000,-0.439934,0.736147,0.514341,0.000000,-2808447.215831,4699407.432814,3261462.349808,1],    "boundingVolume": {    "region": [2.109380,0.540176,2.109544,0.540301,0.000000,24.472100]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_243712.b3dm"}}}