{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949088,-0.315011,0.000000,0.000000,0.176020,-0.530325,0.829320,0.000000,-0.260695,0.785442,0.561355,0.000000,-1664505.138206,5014945.987979,3560189.349066,1],    "boundingVolume": {    "region": [1.891196,0.595969,1.891333,0.596076,0.000000,12.301763]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1373620.b3dm"}}}