private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
if (contentMaster == null)
{
contentMaster = new PlotterContent(master);
}
else
{
contentMaster.Refresh();
}
Metas = contentMaster.GetAllVectorsMetaData();
foreach (var item in Metas)
{
item.DownloadPreview();
}
}
