{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.952584,-0.304275,0.000000,0.000000,0.112932,-0.353552,0.928573,0.000000,-0.282279,0.883721,0.373305,0.000000,-1801253.523140,5639122.598344,2366153.283747,1],    "boundingVolume": {    "region": [1.879924,0.382533,1.880024,0.382605,0.000000,5.338293]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/31/49_41856.b3dm"}}}