{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897874,-0.440253,0.000000,0.000000,0.282627,-0.576404,0.766733,0.000000,-0.336620,0.686519,0.644499,0.000000,-2149999.318444,4384813.249980,4088871.544927,1],    "boundingVolume": {    "region": [2.026614,0.700333,2.026740,0.700402,0.000000,33.682253]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/3_852424.b3dm"}}}