{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949288,-0.314407,0.000000,0.000000,0.175764,-0.530685,0.829144,0.000000,-0.260139,0.785439,0.561617,0.000000,-1660959.123920,5014933.995138,3561850.766863,1],    "boundingVolume": {    "region": [1.890579,0.596298,1.890677,0.596379,0.000000,8.812643]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1416151.b3dm"}}}