{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949329,-0.314284,0.000000,0.000000,0.175700,-0.530721,0.829135,0.000000,-0.260035,0.785463,0.561631,0.000000,-1660290.687606,5015091.282514,3561940.346529,1],    "boundingVolume": {    "region": [1.890449,0.596315,1.890548,0.596396,0.000000,8.803256]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1416637.b3dm"}}}