{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950553,-0.310562,0.000000,0.000000,0.173474,-0.530961,0.829450,0.000000,-0.257054,0.786778,0.561163,0.000000,-1641257.476873,5023475.293698,3558965.775803,1],    "boundingVolume": {    "region": [1.886523,0.595733,1.886639,0.595847,0.000000,8.799150]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1424824.b3dm"}}}