{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950379,-0.311094,0.000000,0.000000,0.173990,-0.531532,0.828976,0.000000,-0.257346,0.786180,0.561866,0.000000,-1643124.999882,5019671.928340,3563437.503656,1],    "boundingVolume": {    "region": [1.887092,0.596591,1.887189,0.596690,0.000000,8.818831]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/6_1399549.b3dm"}}}