{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950158,-0.311769,0.000000,0.000000,0.173888,-0.529947,0.830011,0.000000,-0.258229,0.786988,0.560328,0.000000,-1648752.538178,5024801.516332,3553661.013798,1],    "boundingVolume": {    "region": [1.887768,0.594716,1.887932,0.594847,0.000000,8.737150]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1459763.b3dm"}}}