{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950427,-0.310949,0.000000,0.000000,0.173812,-0.531263,0.829185,0.000000,-0.257291,0.786420,0.561556,0.000000,-1642773.442271,5021197.733943,3561462.682287,1],    "boundingVolume": {    "region": [1.886939,0.596215,1.887036,0.596314,0.000000,8.743962]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/10/2_1427550.b3dm"}}}