{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948883,-0.315628,0.000000,0.000000,0.176279,-0.529954,0.829503,0.000000,-0.261264,0.785446,0.561085,0.000000,-1668135.082745,5014969.165980,3558468.907948,1],    "boundingVolume": {    "region": [1.891856,0.595640,1.891973,0.595751,0.000000,8.745807]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/6.b3dm"}}}