{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949078,-0.315040,0.000000,0.000000,0.176038,-0.530327,0.829315,0.000000,-0.260718,0.785429,0.561363,0.000000,-1664650.798253,5014864.301733,3560235.994330,1],    "boundingVolume": {    "region": [1.891227,0.595978,1.891364,0.596085,0.000000,12.301763]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1373530.b3dm"}}}