{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949896,-0.312568,0.000000,0.000000,0.174688,-0.530877,0.829249,0.000000,-0.258650,0.786041,0.561462,0.000000,-1651451.625602,5018776.499480,3560865.951353,1],    "boundingVolume": {    "region": [1.888606,0.596049,1.888777,0.596254,0.000000,21.806790]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/2_1434918.b3dm"}}}