{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950343,-0.311203,0.000000,0.000000,0.174055,-0.531523,0.828968,0.000000,-0.257434,0.786143,0.561878,0.000000,-1643684.849816,5019434.729073,3563512.925228,1],    "boundingVolume": {    "region": [1.887179,0.596562,1.887331,0.596747,0.000000,8.695765]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/4_1399645.b3dm"}}}