{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857987,-0.513672,0.000000,0.000000,0.262828,-0.439002,0.859185,0.000000,-0.440560,0.735867,0.514205,0.000000,-2812440.151402,4697622.670776,3260598.450247,1],    "boundingVolume": {    "region": [2.110173,0.540017,2.110337,0.540142,0.000000,23.589700]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/4_351900.b3dm"}}}