{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949609,-0.313438,0.000000,0.000000,0.175191,-0.530768,0.829212,0.000000,-0.259359,0.785769,0.561516,0.000000,-1655977.496033,5017039.440999,3561209.574483,1],    "boundingVolume": {    "region": [1.889558,0.596176,1.889657,0.596257,0.000000,12.457991]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/12_1443490.b3dm"}}}