{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950394,-0.311050,0.000000,0.000000,0.173970,-0.531553,0.828967,0.000000,-0.257306,0.786183,0.561880,0.000000,-1642872.738877,5019691.935514,3563525.039580,1],    "boundingVolume": {    "region": [1.887045,0.596607,1.887143,0.596706,0.000000,8.795234]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/7_1394062.b3dm"}}}