{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949342,-0.314246,0.000000,0.000000,0.175675,-0.530717,0.829143,0.000000,-0.260006,0.785482,0.561619,0.000000,-1660105.782854,5015206.751355,3561864.462008,1],    "boundingVolume": {    "region": [1.890409,0.596300,1.890508,0.596382,0.000000,8.777598]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1416203.b3dm"}}}