<!--Copyright (C) 1988-2005 by the Institute of Global Environment and Society (IGES). See file COPYRIGHT for more information.--> <html> <head> <title>GrADS Command: set rband</title> </head> <body bgcolor="e0f0ff" text="#000000"> <h2><b>set rband</b></h2> <p> <code>set rband <i>num mode x1 y1 x2 y2</i></code> <p> Sets the mode and defines the active region for the 'rubber band' widget. <p> <ul> <code><i>num</i> </code> - widget number<br> <code><i>mode</i> </code> - may be either <code>box</code> or <code>line</code><br> <code><i>x1</i> </code> - lowest X point where the widget will be active (in virtual page units)<br> <code><i>y1</i> </code> - lowest Y point where the widget will be active (in virtual page units)<br> <code><i>x2</i> </code> - highest X point where the widget will be active (in virtual page units)<br> <code><i>y2</i> </code> - highest Y point where the widget will be active (in virtual page units)<br> </ul> <p> After executing <code>set rband</code>, rubber bands are defined by executing <a href="gradcomdqpos.html"><code>q pos</code></a> which freezes the system until the user clicks, drags, and then releases the mouse somewhere within the active rband area. See the <a href="gradcomdqpos.html"><code>q pos</code></a> reference page for details on the returned information. <p> <h3>Usage Notes</h3> <ol> <li>In <code>box</code> mode, as the user clicks and drags the mouse in the active rband area a box is drawn with one corner located at the initial click and the opposite corner located at the release point. In <code>line</code> mode, a line is drawn between these two points. </ol> <p> <h3>Examples </h3> See <a href="script.html#widgets">widgets</a> for more information and examples. </body> </html>
