{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949323,-0.314303,0.000000,0.000000,0.175547,-0.530224,0.829485,0.000000,-0.260161,0.785793,0.561111,0.000000,-1661095.393663,5017186.631689,3558635.101161,1],    "boundingVolume": {    "region": [1.890450,0.595674,1.890587,0.595780,0.000000,8.746050]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/6_1365052.b3dm"}}}