{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949329,-0.314283,0.000000,0.000000,0.175702,-0.530728,0.829130,0.000000,-0.260032,0.785459,0.561637,0.000000,-1660276.276893,5015065.481598,3561983.101932,1],    "boundingVolume": {    "region": [1.890448,0.596323,1.890547,0.596404,0.000000,8.803256]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1416882.b3dm"}}}