{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944388,-0.328834,0.000000,0.000000,0.183903,-0.528155,0.828995,0.000000,-0.272027,0.781242,0.561838,0.000000,-1736863.464741,4988140.458320,3563259.950763,1],    "boundingVolume": {    "region": [1.905808,0.596569,1.905923,0.596644,0.000000,8.716318]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_130420.b3dm"}}}