{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950352,-0.311176,0.000000,0.000000,0.173802,-0.530804,0.829482,0.000000,-0.257572,0.786642,0.561115,0.000000,-1644563.088981,5022609.222256,3558664.193021,1],    "boundingVolume": {    "region": [1.887177,0.595674,1.887276,0.595791,0.000000,8.707822]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1343837.b3dm"}}}