{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943838,-0.330408,0.000000,0.000000,0.183952,-0.525474,0.830686,0.000000,-0.273892,0.782395,0.559322,0.000000,-1748752.953627,4995454.856728,3547269.593017,1],    "boundingVolume": {    "region": [1.907478,0.593478,1.907587,0.593658,0.000000,8.722524]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1243515.b3dm"}}}