{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858382,-0.513011,0.000000,0.000000,0.262701,-0.439558,0.858940,0.000000,-0.439866,0.735995,0.514616,0.000000,-2808014.220824,4698441.149257,3263215.051739,1],    "boundingVolume": {    "region": [2.109402,0.540498,2.109567,0.540623,0.000000,25.566900]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_268865.b3dm"}}}