{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950571,-0.310507,0.000000,0.000000,0.173647,-0.531595,0.829008,0.000000,-0.256870,0.786370,0.561819,0.000000,-1640083.718201,5020880.488457,3563137.912433,1],    "boundingVolume": {    "region": [1.886473,0.596534,1.886571,0.596633,0.000000,12.847205]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/6_1391715.b3dm"}}}