{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950357,-0.311162,0.000000,0.000000,0.173791,-0.530795,0.829490,0.000000,-0.257563,0.786653,0.561104,0.000000,-1644505.704434,5022679.451361,3558592.076645,1],    "boundingVolume": {    "region": [1.887162,0.595660,1.887262,0.595777,0.000000,8.707822]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1343883.b3dm"}}}