{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950141,-0.311821,0.000000,0.000000,0.173933,-0.529987,0.829976,0.000000,-0.258261,0.786941,0.560380,0.000000,-1648957.136410,5024498.819439,3553991.831809,1],    "boundingVolume": {    "region": [1.887823,0.594779,1.887987,0.594910,0.000000,8.809282]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1459976.b3dm"}}}