{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949102,-0.314969,0.000000,0.000000,0.116071,-0.349757,0.929622,0.000000,-0.292534,0.881497,0.370657,0.000000,-1866680.343885,5624896.346955,2349357.074195,1],    "boundingVolume": {    "region": [1.891166,0.379659,1.891275,0.379774,0.000000,65.249220]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/19_75514.b3dm"}}}