{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949319,-0.314313,0.000000,0.000000,0.175727,-0.530747,0.829112,0.000000,-0.260052,0.785434,0.561664,0.000000,-1660402.233147,5014903.800049,3562150.890006,1],    "boundingVolume": {    "region": [1.890480,0.596355,1.890579,0.596436,0.000000,6.879747]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/14_1337969.b3dm"}}}