{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950095,-0.311961,0.000000,0.000000,0.173946,-0.529764,0.830116,0.000000,-0.258421,0.787037,0.560171,0.000000,-1649977.529855,5025108.251770,3552665.296448,1],    "boundingVolume": {    "region": [1.887970,0.594527,1.888134,0.594658,0.000000,11.279145]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_1377970.b3dm"}}}