{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897641,-0.440728,0.000000,0.000000,0.285524,-0.581532,0.761772,0.000000,-0.334785,0.681865,0.650368,0.000000,-2138337.168298,4355198.346937,4126214.827134,1],    "boundingVolume": {    "region": [2.027130,0.707955,2.027282,0.708183,0.000000,18.456261]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/2_1796910.b3dm"}}}