{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949141,-0.314850,0.000000,0.000000,0.116088,-0.349957,0.929545,0.000000,-0.292398,0.881460,0.370853,0.000000,-1865815.999663,5624659.647771,2350601.659525,1],    "boundingVolume": {    "region": [1.891041,0.379870,1.891149,0.379985,0.000000,71.051956]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/14/21_839.b3dm"}}}