{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949076,-0.315047,0.000000,0.000000,0.175851,-0.529750,0.829724,0.000000,-0.260853,0.785817,0.560756,0.000000,-1665507.908960,5017332.706115,3556381.220547,1],    "boundingVolume": {    "region": [1.891233,0.595245,1.891371,0.595352,0.000000,8.805649]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/2_1374974.b3dm"}}}