{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949216,-0.314626,0.000000,0.000000,0.175944,-0.530816,0.829023,0.000000,-0.260282,0.785262,0.561797,0.000000,-1661872.517452,5013810.509712,3562998.438393,1],    "boundingVolume": {    "region": [1.890808,0.596546,1.890910,0.596568,0.000000,8.217823]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/7_1337748.b3dm"}}}