{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949625,-0.313388,0.000000,0.000000,0.174972,-0.530199,0.829623,0.000000,-0.259447,0.786175,0.560906,0.000000,-1656536.429436,5019622.049519,3557334.298204,1],    "boundingVolume": {    "region": [1.889505,0.595439,1.889604,0.595521,0.000000,18.033740]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/2_1457469.b3dm"}}}