{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943871,-0.330313,0.000000,0.000000,0.184194,-0.526333,0.830088,0.000000,-0.273614,0.781854,0.560214,0.000000,-1746986.765008,4992017.565254,3552936.026156,1],    "boundingVolume": {    "region": [1.907377,0.594554,1.907487,0.594734,0.000000,8.324969]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/15_1241904.b3dm"}}}