{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950557,-0.310551,0.000000,0.000000,0.173352,-0.530608,0.829701,0.000000,-0.257123,0.787021,0.560789,0.000000,-1641696.445980,5025023.026001,3556593.546287,1],    "boundingVolume": {    "region": [1.886511,0.595282,1.886627,0.595396,0.000000,8.803719]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_1345350.b3dm"}}}