{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950523,-0.310654,0.000000,0.000000,0.173748,-0.531627,0.828966,0.000000,-0.256979,0.786290,0.561881,0.000000,-1640779.672745,5020372.118173,3563531.147405,1],    "boundingVolume": {    "region": [1.886628,0.596609,1.886726,0.596707,0.000000,14.464368]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1328326.b3dm"}}}