{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949252,-0.314516,0.000000,0.000000,0.175365,-0.529275,0.830130,0.000000,-0.260542,0.786351,0.560152,0.000000,-1663518.597053,5020729.848622,3552541.777210,1],    "boundingVolume": {    "region": [1.890662,0.594436,1.890824,0.594702,0.000000,10.490571]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/11_1381142.b3dm"}}}