{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950554,-0.310558,0.000000,0.000000,0.173711,-0.531692,0.828932,0.000000,-0.256889,0.786283,0.561932,0.000000,-1640206.790262,5020329.591029,3563852.609068,1],    "boundingVolume": {    "region": [1.886528,0.596670,1.886626,0.596769,0.000000,8.750549]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1327898.b3dm"}}}