{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950651,-0.310262,0.000000,0.000000,0.173515,-0.531655,0.828997,0.000000,-0.256664,0.786425,0.561836,0.000000,-1638771.728643,5021233.541190,3563243.346657,1],    "boundingVolume": {    "region": [1.886216,0.596554,1.886314,0.596653,0.000000,12.082541]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/6_1392478.b3dm"}}}