{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949081,-0.315033,0.000000,0.000000,0.116337,-0.350480,0.929317,0.000000,-0.292496,0.881184,0.371430,0.000000,-1866441.158582,5622911.154541,2354261.067789,1],    "boundingVolume": {    "region": [1.891234,0.380491,1.891342,0.380607,0.000000,15.567432]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/27_71615.b3dm"}}}