{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949439,-0.313952,0.000000,0.000000,0.175515,-0.530783,0.829134,0.000000,-0.259760,0.785554,0.561631,0.000000,-1658537.554779,5015669.256899,3561943.250097,1],    "boundingVolume": {    "region": [1.890100,0.596315,1.890198,0.596397,0.000000,13.684404]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/13_1409072.b3dm"}}}