{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949304,-0.314359,0.000000,0.000000,0.175745,-0.530718,0.829127,0.000000,-0.260094,0.785436,0.561642,0.000000,-1660672.023043,5014915.164517,3562010.071363,1],    "boundingVolume": {    "region": [1.890528,0.596328,1.890627,0.596410,0.000000,7.287429]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1338153.b3dm"}}}