{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949604,-0.313453,0.000000,0.000000,0.115571,-0.350120,0.929548,0.000000,-0.291103,0.881892,0.370845,0.000000,-1857547.424738,5627417.316497,2350550.402450,1],    "boundingVolume": {    "region": [1.889555,0.379828,1.889693,0.380010,0.000000,7.779898]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/9_74563.b3dm"}}}