{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950502,-0.310720,0.000000,0.000000,0.173767,-0.531559,0.829005,0.000000,-0.257045,0.786310,0.561823,0.000000,-1641203.798224,5020497.397966,3563161.810392,1],    "boundingVolume": {    "region": [1.886697,0.596538,1.886795,0.596637,0.000000,13.607746]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_1329456.b3dm"}}}