{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.942107,-0.335313,0.000000,0.000000,0.187718,-0.527418,0.828608,0.000000,-0.277256,0.778988,0.562411,0.000000,-1770253.633583,4973762.699903,3566899.659398,1],    "boundingVolume": {    "region": [1.912672,0.597268,1.912796,0.597330,0.000000,8.588381]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/9_1288535.b3dm"}}}