{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950545,-0.310587,0.000000,0.000000,0.173571,-0.531210,0.829270,0.000000,-0.257018,0.786599,0.561430,0.000000,-1641028.341180,5022337.547937,3560665.319069,1],    "boundingVolume": {    "region": [1.886558,0.596064,1.886655,0.596162,0.000000,8.489957]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/1_1426734.b3dm"}}}