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21 <title>RGraph: HTML5 canvas graph library - LED Grid documentation</title>
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24 <meta name="description" content="RGraph: HTML5 canvas graph software - Documentation about the LED chart" />
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37 document.getElementById("twitter_div").style.opacity = 0;
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42 function ShowTwitterDIV (e)
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48 div.style.display = 'block';
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127 <div id="breadcrumb">
128 <a href="../index.html">RGraph: HTML5 canvas graph library</a>
130 <a href="index.html">Documentation</a>
135 <h1>RGraph: HTML5 canvas graph library - LED Grid documentation</h1>
138 if (RGraph.isIE8()) {
139 document.write('<div style="background-color: #fee; border: 2px dashed red; padding: 5px"><b>Important</b><br /><br /> Internet Explorer 8 does not natively support the HTML5 canvas tag, so if you want to see the graphs, you can either:<ul><li>Install <a href="http://code.google.com/chrome/chromeframe/">Google Chrome Frame</a></li><li>Use ExCanvas. This is provided in the RGraph Archive.</li><li>Use another browser entirely. Your choices are Firefox 3.5+, Chrome 2+, Safari 4+ or Opera 10.5+. </li></ul> <b>Note:</b> Internet Explorer 9 fully supports the canvas tag. Click <a href="http://groups.google.com/group/rgraph/browse_thread/thread/c5651ff8c56b8f3c#" target="_blank">here</a> to see some screenshots.</div>');
144 The LED grid can be used to represent simple letters and numbers.
148 The example file is <a href="../examples/led.html">here</a>.
153 window.onload = function ()
155 var led = new RGraph.LED('myCanvas', '456461');
156 led.Set('chart.dark', '#666');
157 led.Set('chart.light', 'rgba(255,255,255,1)');
166 You can use these properties to control how the LED grid apears.
170 <li><a href="#chart configuration">Chart configuration</a></li>
171 <li><a href="#interactive features">Interactive features</a></li>
172 <li><a href="#zoom">Zoom</a></li>
176 <a name="chart configuration"></a>
177 <h3 style="border: 1px solid #aaa; background-color: #eee; font-style: italic; padding: 5px; -moz-border-radius: 10px; -webkit-border-radius: 10px; border-radius: 10px">Chart configuration</h3> <a name="chart.dark"></a>
178 <b>chart.dark</b><br />
179 Color of the darkened (ie unlit) lights<br /><i>Default: #eee</i><br /><br />
180 <a name="chart.light"></a>
181 <b>chart.light</b><br />
182 Color of lit lights<br /><i>Default: #f66</i><br /><br />
183 <a name="chart.background"></a>
184 <b>chart.background</b><br />
185 The color of the background.<br /><i>Default: white</i><br /><br />
186 <a name="interactive features"></a>
187 <h3 style="border: 1px solid #aaa; background-color: #eee; font-style: italic; padding: 5px; -moz-border-radius: 10px; -webkit-border-radius: 10px; border-radius: 10px">Interactive features</h3> <a name="chart.resizable"></a>
188 <b>chart.resizable</b><br />
189 Defaulting to false, this determines whether your graph will be resizable. Because of the numerous event handlers this has to install code on, This feature is unlikely to work with other dynamic features (the context menu is fine however).<br /><i>Default: false</i><br /><br />
191 <h3 style="border: 1px solid #aaa; background-color: #eee; font-style: italic; padding: 5px; -moz-border-radius: 10px; -webkit-border-radius: 10px; border-radius: 10px">Zoom</h3> <a name="chart.zoom.mode"></a>
192 <b>chart.zoom.mode</b><br />
193 Can be used to control whether the zoom is in thumbnail or canvas mode. Possible values are: <i>thumbnail</i> and <i>canvas</i>.<br /><i>Default: canvas</i><br /><br />
194 <a name="chart.zoom.factor"></a>
195 <b>chart.zoom.factor</b><br />
196 This is the factor that the graph will be zoomed by (bigger values means more zoom)<br /><i>Default: 1.5</i><br /><br />
197 <a name="chart.zoom.fade.in"></a>
198 <b>chart.zoom.fade.in</b><br />
199 Whether the zoomed canvas fades in or not. This also can be used to control the fade in for the zoom in thumbnail mode.<br /><i>Default: true</i><br /><br />
200 <a name="chart.zoom.fade.out"></a>
201 <b>chart.zoom.fade.out</b><br />
202 Whether the zoomed canvas fades out or not. This also can be used to control the fade in for the zoom in thumbnail mode.<br /><i>Default: true</i><br /><br />
203 <a name="chart.zoom.hdir"></a>
204 <b>chart.zoom.hdir</b><br />
205 The horizontal direction of the zoom. Possible values are: <i>left</i>, <i>center</i>, <i>right</i><br /><i>Default: right</i><br /><br />
206 <a name="chart.zoom.vdir"></a>
207 <b>chart.zoom.vdir</b><br />
208 The vertical direction of the zoom. Possible values are: <i>up</i>, <i>center</i>, <i>down</i><br /><i>Default: down</i><br /><br />
209 <a name="chart.zoom.delay"></a>
210 <b>chart.zoom.delay</b><br />
211 The delay (in milliseconds) between frames.<br /><i>Default: 50</i><br /><br />
212 <a name="chart.zoom.frames"></a>
213 <b>chart.zoom.frames</b><br />
214 The number of frames in the zoom animation.<br /><i>Default: 10</i><br /><br />
215 <a name="chart.zoom.shadow"></a>
216 <b>chart.zoom.shadow</b><br />
217 Whether or not the zoomed canvas has a shadow or not.<br /><i>Default: true</i><br /><br />
218 <a name="chart.zoom.thumbnail.width"></a>
219 <b>chart.zoom.thumbnail.width</b><br />
220 When the zoom is in thumbnail mode, this is the width (in pixels) of the thumbnail.<br /><i>Default: 75</i><br /><br />
221 <a name="chart.zoom.thumbnail.height"></a>
222 <b>chart.zoom.thumbnail.height</b><br />
223 When the zoom is in thumbnail mode, this is the height (in pixels) of the thumbnail.<br /><i>Default: 75</i><br /><br />
224 <a name="chart.zoom.background"></a>
225 <b>chart.zoom.background</b><br />
226 Defaulting to true, this determines whether the zoom has a dark, semi-opaque background that covers the entire web page.<br /><i>Default: true</i><br /><br />
227 </div><!-- /DOCS --><br /><br />