{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897950,-0.440098,0.000000,0.000000,0.282448,-0.576290,0.766885,0.000000,-0.336568,0.686715,0.644317,0.000000,-2149667.218790,4386058.962272,4087717.704174,1],    "boundingVolume": {    "region": [2.026440,0.700096,2.026567,0.700165,0.000000,7.391989]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/0_883421.b3dm"}}}