{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857984,-0.513677,0.000000,0.000000,0.262792,-0.438936,0.859230,0.000000,-0.440587,0.735904,0.514129,0.000000,-2812615.337314,4697853.118417,3260118.517682,1],    "boundingVolume": {    "region": [2.110179,0.539929,2.110343,0.540054,0.000000,23.589700]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/4_339191.b3dm"}}}