{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950458,-0.310853,0.000000,0.000000,0.173865,-0.531606,0.828955,0.000000,-0.257140,0.786225,0.561898,0.000000,-1641809.000022,5019959.932771,3563637.014846,1],    "boundingVolume": {    "region": [1.886838,0.596629,1.886936,0.596728,0.000000,13.343096]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1394466.b3dm"}}}