{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857914,-0.513793,0.000000,0.000000,0.262864,-0.438922,0.859215,0.000000,-0.440680,0.735831,0.514154,0.000000,-2813204.818444,4697390.656835,3260275.216574,1],    "boundingVolume": {    "region": [2.110315,0.539958,2.110479,0.540083,0.000000,20.932700]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/4_342966.b3dm"}}}