{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950385,-0.311077,0.000000,0.000000,0.174105,-0.531914,0.828707,0.000000,-0.257248,0.785927,0.562266,0.000000,-1642498.916378,5018062.623957,3565974.730321,1],    "boundingVolume": {    "region": [1.887074,0.597073,1.887172,0.597172,0.000000,8.815122]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1326032.b3dm"}}}