{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949478,-0.313833,0.000000,0.000000,0.175451,-0.530815,0.829128,0.000000,-0.259660,0.785580,0.561641,0.000000,-1657896.188302,5015835.553991,3562007.226919,1],    "boundingVolume": {    "region": [1.889975,0.596327,1.890073,0.596409,0.000000,16.490579]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/13_1409409.b3dm"}}}