{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897911,-0.440176,0.000000,0.000000,0.282544,-0.576358,0.766799,0.000000,-0.336590,0.686607,0.644420,0.000000,-2149809.751590,4385373.778346,4088373.408355,1],    "boundingVolume": {    "region": [2.026528,0.700231,2.026655,0.700300,0.000000,19.054512]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/2_884016.b3dm"}}}