{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950755,-0.309942,0.000000,0.000000,0.173079,-0.530925,0.829556,0.000000,-0.256574,0.787046,0.561006,0.000000,-1638190.534849,5025186.716977,3557969.301668,1],    "boundingVolume": {    "region": [1.885871,0.595543,1.885987,0.595658,0.000000,8.812964]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/11_1421520.b3dm"}}}