{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949021,-0.315211,0.000000,0.000000,0.175809,-0.529317,0.830009,0.000000,-0.261080,0.786045,0.560331,0.000000,-1666954.503057,5018777.484189,3553682.041681,1],    "boundingVolume": {    "region": [1.891428,0.594691,1.891523,0.594881,0.000000,15.112235]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/19/27_1091821.b3dm"}}}