{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950642,-0.310289,0.000000,0.000000,0.173520,-0.531620,0.829018,0.000000,-0.256693,0.786438,0.561804,0.000000,-1638955.593011,5021318.466860,3563040.466180,1],    "boundingVolume": {    "region": [1.886245,0.596515,1.886342,0.596614,0.000000,11.649337]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/6_1391154.b3dm"}}}