{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950539,-0.310606,0.000000,0.000000,0.173515,-0.531003,0.829415,0.000000,-0.257079,0.786732,0.561215,0.000000,-1641418.530414,5023185.020243,3559298.948121,1],    "boundingVolume": {    "region": [1.886569,0.595796,1.886685,0.595910,0.000000,8.816373]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1425478.b3dm"}}}