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<h1>wtext<a class="headerlink" href="#wtext" title="Permalink to this heading">¶</a></h1>
<p>The wtext object (widget text) is often used together with widgets such as sliders. It provides a way to modify dynamically a portion of the title or caption of a canvas, perhaps in response to user interactions or computed changes.</p>
<p>The example program <a class="reference external" href="https://www.glowscript.org/#/user/GlowScriptDemos/folder/Examples/program/ButtonsSlidersMenus-VPython">ButtonsMenusSliders</a> uses <strong>wtext</strong> to display the current rotation speed of a cube whose rotation is controlled by a slider.</p>
<p>Variables must be converted to a string using standard Python formatting options.  Text may be updated any time by setting the <em>text</em> attribute of the <em>wtext</em> object:</p>
<p><code class="docutils literal notranslate"><span class="pre">myspeedtxt.text</span> <span class="pre">=</span> <span class="pre">f'omega</span> <span class="pre">=</span> <span class="pre">{vslider.value:.1e}</span> <span class="pre">radians/s'</span></code></p>
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