{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950541,-0.310598,0.000000,0.000000,0.173725,-0.531660,0.828950,0.000000,-0.256927,0.786289,0.561905,0.000000,-1640452.928984,5020368.033395,3563686.282944,1],    "boundingVolume": {    "region": [1.886570,0.596638,1.886668,0.596737,0.000000,14.464368]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1394591.b3dm"}}}