{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949418,-0.314016,0.000000,0.000000,0.175397,-0.530307,0.829464,0.000000,-0.259917,0.785851,0.561142,0.000000,-1659538.613594,5017557.927676,3558836.573296,1],    "boundingVolume": {    "region": [1.890167,0.595724,1.890266,0.595806,0.000000,8.783543]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1364194.b3dm"}}}