{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950427,-0.310949,0.000000,0.000000,0.173553,-0.530471,0.829747,0.000000,-0.257467,0.786958,0.560721,0.000000,-1643890.580534,5024614.416057,3556160.258691,1],    "boundingVolume": {    "region": [1.886938,0.595198,1.887037,0.595315,0.000000,8.812789]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/8_1450413.b3dm"}}}