{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949081,-0.315033,0.000000,0.000000,0.116077,-0.349697,0.929644,0.000000,-0.292600,0.881498,0.370602,0.000000,-1867101.466871,5624904.397201,2349005.502218,1],    "boundingVolume": {    "region": [1.891233,0.379599,1.891342,0.379715,0.000000,38.495044]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/19_75122.b3dm"}}}