{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950469,-0.310818,0.000000,0.000000,0.173833,-0.531576,0.828981,0.000000,-0.257119,0.786260,0.561859,0.000000,-1641675.880219,5020179.542444,3563390.631564,1],    "boundingVolume": {    "region": [1.886801,0.596582,1.886899,0.596681,0.000000,10.607635]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1328680.b3dm"}}}