{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950525,-0.310648,0.000000,0.000000,0.173744,-0.531625,0.828968,0.000000,-0.256974,0.786293,0.561879,0.000000,-1640751.284891,5020392.840104,3563515.132471,1],    "boundingVolume": {    "region": [1.886622,0.596606,1.886720,0.596704,0.000000,14.464368]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1394034.b3dm"}}}