{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897781,-0.440442,0.000000,0.000000,0.282809,-0.576469,0.766617,0.000000,-0.336713,0.686344,0.644637,0.000000,-2150592.891189,4383696.501944,4089750.792978,1],    "boundingVolume": {    "region": [2.026823,0.700514,2.026950,0.700583,0.000000,34.932402]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_857303.b3dm"}}}