{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949327,-0.314289,0.000000,0.000000,0.175541,-0.530230,0.829483,0.000000,-0.260149,0.785795,0.561114,0.000000,-1661017.266526,5017196.776705,3558657.116858,1],    "boundingVolume": {    "region": [1.890435,0.595678,1.890572,0.595784,0.000000,8.746050]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/6_1364956.b3dm"}}}