{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857971,-0.513697,0.000000,0.000000,0.262839,-0.438991,0.859187,0.000000,-0.440583,0.735857,0.514200,0.000000,-2812589.282655,4697553.248475,3260570.022281,1],    "boundingVolume": {    "region": [2.110203,0.540012,2.110367,0.540137,0.000000,23.589700]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/4_351448.b3dm"}}}