{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949319,-0.314313,0.000000,0.000000,0.175554,-0.530227,0.829482,0.000000,-0.260169,0.785787,0.561115,0.000000,-1661143.350976,5017149.646962,3558664.659244,1],    "boundingVolume": {    "region": [1.890461,0.595679,1.890598,0.595786,0.000000,8.746050]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/6_1364926.b3dm"}}}