{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950543,-0.310593,0.000000,0.000000,0.173257,-0.530238,0.829958,0.000000,-0.257238,0.787256,0.560408,0.000000,-1642428.403700,5026512.680374,3554166.122751,1],    "boundingVolume": {    "region": [1.886522,0.594805,1.886704,0.594951,0.000000,8.807606]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1449063.b3dm"}}}