{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949304,-0.314359,0.000000,0.000000,0.175741,-0.530706,0.829135,0.000000,-0.260097,0.785444,0.561630,0.000000,-1660687.326907,5014964.815049,3561933.548508,1],    "boundingVolume": {    "region": [1.890528,0.596313,1.890627,0.596395,0.000000,8.812643]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1416614.b3dm"}}}