[討論] 如何從plot上面用滑鼠擷取某範圍資料

[l60km (/hr)]

各位大大好，目前寫了一個資料處理的GUI，想要從畫出來的plot(x,y)上面，讓user用滑

鼠拖曳擷取某一區間，例如x(15:70)，然後獲得區間內的平均值mean(y(15:70))，

任何關鍵字都好，謝謝!

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推 YoursEver: rect = getrect( fig );   <== Can it work?
推 profyang: ginput
→ YoursEver: ginput collects only points, but getrect can specif
→ YoursEver: specify a rectangle region.
→ YoursEver: Oops, I see. "ginput" also works in this case.
→ YoursEver: google: subsetting a graphics image (cropping), Mat
→ YoursEver: Matlab.
→ l60km: 感謝兩位，both works，ginput用點選的、getrect用拖曳的。