{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949889,-0.312588,0.000000,0.000000,0.174462,-0.530153,0.829760,0.000000,-0.258828,0.786525,0.560702,0.000000,-1652580.626324,5021849.653622,3556038.696782,1],    "boundingVolume": {    "region": [1.888630,0.595168,1.888794,0.595299,0.000000,8.806304]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1356568.b3dm"}}}