{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950512,-0.310687,0.000000,0.000000,0.173715,-0.531463,0.829078,0.000000,-0.257041,0.786388,0.561715,0.000000,-1641177.517728,5020996.170656,3562475.666962,1],    "boundingVolume": {    "region": [1.886663,0.596408,1.886761,0.596507,0.000000,8.782471]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_1389270.b3dm"}}}