{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950382,-0.311085,0.000000,0.000000,0.174122,-0.531952,0.828679,0.000000,-0.257245,0.785898,0.562307,0.000000,-1642483.778172,5017878.983763,3566238.331580,1],    "boundingVolume": {    "region": [1.887082,0.597124,1.887180,0.597222,0.000000,8.815122]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1384397.b3dm"}}}