{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949340,-0.314251,0.000000,0.000000,0.175678,-0.530717,0.829142,0.000000,-0.260010,0.785480,0.561620,0.000000,-1660133.738652,5015194.095529,3561869.219995,1],    "boundingVolume": {    "region": [1.890415,0.596301,1.890514,0.596383,0.000000,8.777598]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1416253.b3dm"}}}