{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950176,-0.311713,0.000000,0.000000,0.173865,-0.529981,0.829994,0.000000,-0.258178,0.786987,0.560353,0.000000,-1648426.485101,5024795.022472,3553820.378596,1],    "boundingVolume": {    "region": [1.887710,0.594747,1.887874,0.594878,0.000000,8.813611]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1459913.b3dm"}}}