{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948985,-0.315320,0.000000,0.000000,0.176257,-0.530461,0.829183,0.000000,-0.260908,0.785225,0.561559,0.000000,-1665863.270437,5013570.343647,3561482.657254,1],    "boundingVolume": {    "region": [1.891522,0.596215,1.891659,0.596322,0.000000,8.060845]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1066556.b3dm"}}}