{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949033,-0.315176,0.000000,0.000000,0.175779,-0.529292,0.830031,0.000000,-0.261057,0.786075,0.560299,0.000000,-1666810.366881,5018973.497130,3553474.214770,1],    "boundingVolume": {    "region": [1.891391,0.594651,1.891485,0.594842,0.000000,15.708664]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/18/27_1212657.b3dm"}}}