{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950739,-0.309992,0.000000,0.000000,0.172743,-0.529801,0.830344,0.000000,-0.256861,0.787788,0.559833,0.000000,-1640015.360599,5029899.447310,3550511.760339,1],    "boundingVolume": {    "region": [1.885889,0.594111,1.886072,0.594257,0.000000,7.433074]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/8_1375312.b3dm"}}}