{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950043,-0.312119,0.000000,0.000000,0.174048,-0.529776,0.830087,0.000000,-0.258543,0.786966,0.560215,0.000000,-1650754.916262,5024655.915372,3552942.074363,1],    "boundingVolume": {    "region": [1.888137,0.594580,1.888300,0.594711,0.000000,10.242729]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1377290.b3dm"}}}