{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949079,-0.315039,0.000000,0.000000,0.176102,-0.530521,0.829178,0.000000,-0.260673,0.785297,0.561567,0.000000,-1664365.841081,5014029.003534,3561536.697682,1],    "boundingVolume": {    "region": [1.891225,0.596225,1.891363,0.596332,0.000000,8.793916]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1447417.b3dm"}}}