{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950540,-0.310603,0.000000,0.000000,0.173723,-0.531646,0.828959,0.000000,-0.256934,0.786297,0.561891,0.000000,-1640495.324735,5020418.469166,3563596.319939,1],    "boundingVolume": {    "region": [1.886575,0.596621,1.886672,0.596720,0.000000,14.464368]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1394354.b3dm"}}}