{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897717,-0.440573,0.000000,0.000000,0.282904,-0.576449,0.766597,0.000000,-0.336804,0.686276,0.644661,0.000000,-2151177.557789,4383265.643389,4089904.071983,1],    "boundingVolume": {    "region": [2.026970,0.700545,2.027096,0.700614,0.000000,50.720461]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/7_857857.b3dm"}}}