{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950513,-0.310685,0.000000,0.000000,0.173749,-0.531570,0.829002,0.000000,-0.257015,0.786316,0.561828,0.000000,-1641013.412984,5020537.445733,3563192.860407,1],    "boundingVolume": {    "region": [1.886661,0.596544,1.886759,0.596643,0.000000,12.097908]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_1392081.b3dm"}}}