{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950360,-0.311153,0.000000,0.000000,0.173899,-0.531141,0.829245,0.000000,-0.257479,0.786422,0.561466,0.000000,-1643972.432022,5021209.907371,3560896.040551,1],    "boundingVolume": {    "region": [1.887127,0.596064,1.887278,0.596250,0.000000,8.819076]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/1_1431685.b3dm"}}}