15.2.10 Interacting with Plots

The user can select points on a plot with the ginput function or select the position at which to place text on the plot with the gtext function using the mouse.

[가로, 세로, buttons] = ginput (n)

[가로, 세로, buttons] = ginput ()

Return the position and type of mouse button clicks and/or key strokes in the current figure window.

If n is defined, then capture n events before returning. When n is not defined ginput will loop until the return key RET is pressed.

The return values 가로, 세로 are the coordinates where the mouse was clicked in the units of the current axes. The return value button is 1, 2, or 3 for the left, middle, or right button. If a key is pressed the ASCII value is returned in button.

Implementation Note: ginput is intenteded for 2-D plots. For 3-D plots see the currentpoint property of the current axes which can be transformed with knowledge of the current view into data units.

같이 보기: gtext, waitforbuttonpress.

waitforbuttonpress ()

b = waitforbuttonpress ()

Wait for mouse click or key press over the current figure window.

The return value of b is 0 if a mouse button was pressed or 1 if a key was pressed.

같이 보기: waitfor, ginput, kbhit.

gtext (s)

gtext ({s1, s2, …})

gtext ({s1; s2; …})

gtext (…, 속성, 값, …)

h = gtext (…)

Place text on the current figure using the mouse.

The text is defined by the string s. If s is a cell string organized as a row vector then each string of the cell array is written to a separate line. If s is organized as a column vector then one string element of the cell array is placed for every mouse click.

Optional property/value pairs are passed directly to the underlying text objects.

The optional return value h is a graphics handle to the created text object(s).

같이 보기: ginput, text.

More sophisticated user interaction mechanisms can be obtained using the ui* family of functions, see UI Elements.