{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949474,-0.313845,0.000000,0.000000,0.175435,-0.530744,0.829176,0.000000,-0.259685,0.785623,0.561569,0.000000,-1658054.907999,5016110.721462,3561548.920831,1],    "boundingVolume": {    "region": [1.889987,0.596240,1.890086,0.596322,0.000000,8.785490]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1444523.b3dm"}}}