{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898110,-0.439770,0.000000,0.000000,0.284256,-0.580515,0.763021,0.000000,-0.334610,0.683349,0.648899,0.000000,-2137202.001727,4364651.518017,4116866.690178,1],    "boundingVolume": {    "region": [2.026073,0.706025,2.026205,0.706248,0.000000,6.519422]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1820215.b3dm"}}}