{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950027,-0.312168,0.000000,0.000000,0.174072,-0.529758,0.830094,0.000000,-0.258585,0.786959,0.560205,0.000000,-1651027.331951,5024611.080312,3552879.324024,1],    "boundingVolume": {    "region": [1.888188,0.594568,1.888352,0.594699,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1460743.b3dm"}}}