{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949312,-0.314337,0.000000,0.000000,0.175587,-0.530280,0.829441,0.000000,-0.260176,0.785742,0.561176,0.000000,-1661187.123555,5016861.646672,3559047.647374,1],    "boundingVolume": {    "region": [1.890486,0.595752,1.890623,0.595859,0.000000,8.182809]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/7_1363105.b3dm"}}}