<html lang="en"> <head> <title>Interacting with Plots - GNU Octave</title> <meta http-equiv="Content-Type" content="text/html"> <meta name="description" content="GNU Octave"> <meta name="generator" content="makeinfo 4.13"> <link title="Top" rel="start" href="index.html#Top"> <link rel="up" href="High_002dLevel-Plotting.html#High_002dLevel-Plotting" title="High-Level Plotting"> <link rel="prev" href="Printing-and-Saving-Plots.html#Printing-and-Saving-Plots" title="Printing and Saving Plots"> <link rel="next" href="Test-Plotting-Functions.html#Test-Plotting-Functions" title="Test Plotting Functions"> <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> <meta http-equiv="Content-Style-Type" content="text/css"> <style type="text/css"><!-- pre.display { font-family:inherit } pre.format { font-family:inherit } pre.smalldisplay { font-family:inherit; font-size:smaller } pre.smallformat { font-family:inherit; font-size:smaller } pre.smallexample { font-size:smaller } pre.smalllisp { font-size:smaller } span.sc { font-variant:small-caps } span.roman { font-family:serif; font-weight:normal; } span.sansserif { font-family:sans-serif; font-weight:normal; } --></style> </head> <body> <div class="node"> <a name="Interacting-with-Plots"></a> <p> Next: <a rel="next" accesskey="n" href="Test-Plotting-Functions.html#Test-Plotting-Functions">Test Plotting Functions</a>, Previous: <a rel="previous" accesskey="p" href="Printing-and-Saving-Plots.html#Printing-and-Saving-Plots">Printing and Saving Plots</a>, Up: <a rel="up" accesskey="u" href="High_002dLevel-Plotting.html#High_002dLevel-Plotting">High-Level Plotting</a> <hr> </div> <h4 class="subsection">15.2.10 Interacting with Plots</h4> <p>The user can select points on a plot with the <code>ginput</code> function or selection the position at which to place text on the plot with the <code>gtext</code> function using the mouse. Menus may also be created and populated with specific user commands via the <code>uimenu</code> function. <!-- ginput scripts/plot/ginput.m --> <p><a name="doc_002dginput"></a> <div class="defun"> — Function File: [<var>x</var>, <var>y</var>, <var>buttons</var>] = <b>ginput</b> (<var>n</var>)<var><a name="index-ginput-1472"></a></var><br> <blockquote><p>Return which mouse buttons were pressed and keys were hit on the current figure. If <var>n</var> is defined, then wait for <var>n</var> mouse clicks before returning. If <var>n</var> is not defined, then <code>ginput</code> will loop until the return key <RET> is pressed. </p></blockquote></div> <!-- waitforbuttonpress scripts/plot/waitforbuttonpress.m --> <p><a name="doc_002dwaitforbuttonpress"></a> <div class="defun"> — Function File: <var>b</var> = <b>waitforbuttonpress</b> ()<var><a name="index-waitforbuttonpress-1473"></a></var><br> <blockquote><p>Wait for button or mouse press.over a figure window. The value of <var>b</var> returns 0 if a mouse button was pressed or 1 is a key was pressed. <!-- Texinfo @sp should work but in practice produces ugly results for HTML. --> <!-- A simple blank line produces the correct behavior. --> <!-- @sp 1 --> <p class="noindent"><strong>See also:</strong> <a href="doc_002dginput.html#doc_002dginput">ginput</a>. </p></blockquote></div> <!-- gtext scripts/plot/gtext.m --> <p><a name="doc_002dgtext"></a> <div class="defun"> — Function File: <b>gtext</b> (<var>s</var>)<var><a name="index-gtext-1474"></a></var><br> — Function File: <b>gtext</b> (<var>{s1; s2; <small class="dots">...</small>}</var>)<var><a name="index-gtext-1475"></a></var><br> — Function File: <b>gtext</b> (<var><small class="dots">...</small>, prop, val</var>)<var><a name="index-gtext-1476"></a></var><br> <blockquote><p>Place text on the current figure using the mouse. The text is defined by the string <var>s</var>. If <var>s</var> is a cell array, each element of the cell array is written to a separate line. Additional arguments are passed to the underlying text object as properties. <!-- Texinfo @sp should work but in practice produces ugly results for HTML. --> <!-- A simple blank line produces the correct behavior. --> <!-- @sp 1 --> <p class="noindent"><strong>See also:</strong> <a href="doc_002dginput.html#doc_002dginput">ginput</a>, <a href="doc_002dtext.html#doc_002dtext">text</a>. </p></blockquote></div> <!-- uimenu scripts/plot/uimenu.m --> <p><a name="doc_002duimenu"></a> <div class="defun"> — Function File: <b>uimenu</b> (<var>property, value, <small class="dots">...</small></var>)<var><a name="index-uimenu-1477"></a></var><br> — Function File: <b>uimenu</b> (<var>h, property, value, <small class="dots">...</small></var>)<var><a name="index-uimenu-1478"></a></var><br> <blockquote><p>Create a uimenu object and return a handle to it. If <var>h</var> is ommited then a top-level menu for the current figure is created. If <var>h</var> is given then a submenu relative to <var>h</var> is created. <p>uimenu objects have the following specific properties: <dl> <dt>"accelerator"<dd>A string containing the key combination together with CTRL to execute this menu entry (e.g., "x" for CTRL+x). <br><dt>"callback"<dd>Is the function called when this menu entry is executed. It can be either a function string (e.g., "myfun"), a function handle (e.g., @myfun) or a cell array containing the function handle and arguments for the callback function (e.g., {@myfun, arg1, arg2}). <br><dt>"checked"<dd>Can be set "on" or "off". Sets a mark at this menu entry. <br><dt>"enable"<dd>Can be set "on" or "off". If disabled the menu entry cannot be selected and it is grayed out. <br><dt>"foregroundcolor"<dd>A color value setting the text color for this menu entry. <br><dt>"label"<dd>A string containing the label for this menu entry. A "&"-symbol can be used to mark the "accelerator" character (e.g., "E&xit") <br><dt>"position"<dd>An scalar value containing the relative menu position. The entry with the lowest value is at the first position starting from left or top. <br><dt>"separator"<dd>Can be set "on" or "off". If enabled it draws a separator line above the current position. It is ignored for top level entries. </dl> <p>Examples: <pre class="example"> f = uimenu ("label", "&File", "accelerator", "f"); e = uimenu ("label", "&Edit", "accelerator", "e"); uimenu (f, "label", "Close", "accelerator", "q", ... "callback", "close (gcf)"); uimenu (e, "label", "Toggle &Grid", "accelerator", "g", ... "callback", "grid (gca)"); </pre> <!-- Texinfo @sp should work but in practice produces ugly results for HTML. --> <!-- A simple blank line produces the correct behavior. --> <!-- @sp 1 --> <p class="noindent"><strong>See also:</strong> <a href="doc_002dfigure.html#doc_002dfigure">figure</a>. </p></blockquote></div> </body></html>