{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948842,-0.315751,0.000000,0.000000,0.176391,-0.530061,0.829410,0.000000,-0.261336,0.785324,0.561222,0.000000,-1668598.800383,5014190.168335,3559343.256147,1],    "boundingVolume": {    "region": [1.891976,0.595808,1.892113,0.595915,0.000000,8.775112]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/8_1147568.b3dm"}}}