{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950405,-0.311016,0.000000,0.000000,0.173495,-0.530166,0.829954,0.000000,-0.257588,0.787137,0.560414,0.000000,-1644659.644756,5025754.967463,3554205.591194,1],    "boundingVolume": {    "region": [1.886967,0.594812,1.887150,0.594958,0.000000,8.588506]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/13_1346662.b3dm"}}}