{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950657,-0.310243,0.000000,0.000000,0.173208,-0.530751,0.829640,0.000000,-0.256849,0.787046,0.560881,0.000000,-1639944.643918,5025181.697230,3557173.590311,1],    "boundingVolume": {    "region": [1.886187,0.595392,1.886302,0.595506,0.000000,8.582423]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/9_1451245.b3dm"}}}