{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950468,-0.310822,0.000000,0.000000,0.114302,-0.349525,0.929929,0.000000,-0.288778,0.883060,0.369880,0.000000,-1842711.490717,5634861.581854,2344427.083890,1],    "boundingVolume": {    "region": [1.886780,0.378841,1.886928,0.378919,0.000000,7.560509]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/12_8637.b3dm"}}}