{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950155,-0.311778,0.000000,0.000000,0.173829,-0.529749,0.830150,0.000000,-0.258280,0.787118,0.560121,0.000000,-1649079.872990,5025629.611780,3552346.735800,1],    "boundingVolume": {    "region": [1.887778,0.594467,1.887942,0.594598,0.000000,8.399994]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1378220.b3dm"}}}