{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949619,-0.313405,0.000000,0.000000,0.173722,-0.526379,0.832314,0.000000,-0.260311,0.788744,0.556885,0.000000,-1662027.640661,5035947.643805,3531778.897886,1],    "boundingVolume": {    "region": [1.889514,0.590568,1.889633,0.590693,0.000000,7.849307]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/17_1462776.b3dm"}}}