{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950042,-0.312121,0.000000,0.000000,0.174042,-0.529752,0.830104,0.000000,-0.258550,0.786981,0.560190,0.000000,-1650803.241544,5024753.028647,3552783.346246,1],    "boundingVolume": {    "region": [1.888140,0.594550,1.888303,0.594681,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1458679.b3dm"}}}