{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950331,-0.311242,0.000000,0.000000,0.174077,-0.531519,0.828966,0.000000,-0.257465,0.786131,0.561881,0.000000,-1643885.329414,5019358.419745,3563527.832785,1],    "boundingVolume": {    "region": [1.887220,0.596565,1.887372,0.596750,0.000000,8.778951]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/4_1399668.b3dm"}}}