{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949902,-0.312549,0.000000,0.000000,0.174451,-0.530193,0.829736,0.000000,-0.258788,0.786512,0.560738,0.000000,-1652328.024672,5021771.992959,3556264.222818,1],    "boundingVolume": {    "region": [1.888590,0.595211,1.888753,0.595342,0.000000,8.806304]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1356236.b3dm"}}}