{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896546,-0.442952,0.000000,0.000000,0.283383,-0.573574,0.768575,0.000000,-0.339503,0.687163,0.642296,0.000000,-2168393.391412,4388885.354379,4074859.652808,1],    "boundingVolume": {    "region": [2.029600,0.697416,2.029769,0.697565,0.000000,51.622141]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/0_503140.b3dm"}}}