尝试从原点绘制线条到2D坐标（MATLAB）

Question

我试图在x = 0时从图形中心出来3条线，然后到达黑点标记的坐标。

我使用

获得了黑点

scatter(X,Y);

但是找不到从原点到这些点发出线条的方法。

Answer 1

如评论中所述，这很容易做到：

ROW_NUMBER

这通过将矢量N = numel(X); Xlines = zeros(2*N,1); Ylines = zeros(2*N,1); Xlines(1:2:end) = X(:); Ylines(1:2:end) = Y(:); plot(Xlines, Ylines, '-'); 和Xlines与点Ylines交织来构造矢量(0,0)和$ol = New-Object -comObject Outlook.Application $ns = $ol.GetNameSpace("MAPI") # call the save method yo dave the email in the drafts folder $mail = $ol.CreateItem(0) $null = $Mail.Recipients.Add("xxxx@serverdomain.es") $Mail.Subject = "PS1 Script TestMail" $Mail.Body = " Test Mail " $date = Get-Date $date = $date.AddMinutes(2) $Mail.DeferredDeliveryTime = $date #"2/11/2013 10:50:00 AM" $Mail.save() # get it back from drafts and update the body $drafts = $ns.GetDefaultFolder($olFolderDrafts) $draft = $drafts.Items | where {$_.subject -eq 'PS1 Script TestMail'} $draft.body += "`n foo bar" $draft.save() $inspector = $draft.GetInspector $inspector.Display() # send the message $draft.Send() ，这看起来与您想要的完全相同。