{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897781,-0.440443,0.000000,0.000000,0.282811,-0.576471,0.766615,0.000000,-0.336713,0.686341,0.644639,0.000000,-2150593.795631,4383680.963976,4089766.863748,1],    "boundingVolume": {    "region": [2.026825,0.700517,2.026952,0.700586,0.000000,34.932402]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_857373.b3dm"}}}