{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949090,-0.315004,0.000000,0.000000,0.116115,-0.349848,0.929583,0.000000,-0.292553,0.881448,0.370758,0.000000,-1866803.557839,5624587.039536,2349995.314792,1],    "boundingVolume": {    "region": [1.891203,0.379767,1.891311,0.379883,0.000000,86.206870]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/20_76783.b3dm"}}}