{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949112,-0.314940,0.000000,0.000000,0.116093,-0.349860,0.929581,0.000000,-0.292493,0.881466,0.370763,0.000000,-1866421.718473,5624701.141579,2350025.309448,1],    "boundingVolume": {    "region": [1.891135,0.379772,1.891244,0.379888,0.000000,65.359440]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/20_76847.b3dm"}}}