{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949085,-0.315021,0.000000,0.000000,0.175835,-0.529750,0.829727,0.000000,-0.260833,0.785827,0.560751,0.000000,-1665380.824302,5017398.889233,3556347.588898,1],    "boundingVolume": {    "region": [1.891207,0.595239,1.891344,0.595346,0.000000,8.805649]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/2_1375007.b3dm"}}}