{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950515,-0.310680,0.000000,0.000000,0.173766,-0.531631,0.828959,0.000000,-0.256998,0.786276,0.561891,0.000000,-1640901.605084,5020286.773283,3563594.808133,1],    "boundingVolume": {    "region": [1.886655,0.596621,1.886753,0.596720,0.000000,14.464368]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1394353.b3dm"}}}