{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950428,-0.310944,0.000000,0.000000,0.173674,-0.530851,0.829478,0.000000,-0.257379,0.786702,0.561121,0.000000,-1643331.296684,5022987.494444,3558699.087869,1],    "boundingVolume": {    "region": [1.886933,0.595681,1.887032,0.595798,0.000000,8.290989]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/12_1424331.b3dm"}}}