{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858863,-0.512206,0.000000,0.000000,0.262035,-0.439379,0.859234,0.000000,-0.439328,0.736662,0.514121,0.000000,-2804577.760231,4702691.898186,3260066.942741,1],    "boundingVolume": {    "region": [2.108465,0.539920,2.108630,0.540045,0.000000,9.519833]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/4_218512.b3dm"}}}