{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896755,-0.442527,0.000000,0.000000,0.286872,-0.581330,0.761420,0.000000,-0.335996,0.680875,0.650781,0.000000,-2146071.015030,4348882.951064,4128842.137008,1],    "boundingVolume": {    "region": [2.029163,0.708575,2.029260,0.708651,0.000000,17.553589]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/21_1791134.b3dm"}}}