{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950342,-0.311207,0.000000,0.000000,0.174064,-0.531543,0.828954,0.000000,-0.257433,0.786128,0.561899,0.000000,-1643677.861186,5019341.351056,3563646.771822,1],    "boundingVolume": {    "region": [1.887184,0.596587,1.887336,0.596773,0.000000,8.820846]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/4_1399884.b3dm"}}}