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21 <title>RGraph: HTML5 canvas graph library - funnel chart documentation</title>
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129 <a href="../index.html">RGraph: HTML5 canvas graph library</a>
131 <a href="index.html">Documentation</a>
136 <h1>RGraph: HTML5 canvas graph library - Funnel chart 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 This is a funnel chart. It can be used to illustrate stages of a sales or order fulfillment process, and in doing so highlight any bottlenecks
145 or steps where large amounts of customers are lost.
149 The example file is <a href="../examples/funnel.html">here</a>.
154 window.onload = function ()
156 var funnel = new RGraph.Funnel('funnel1', [100,45,45,26,21,5]);
157 funnel.Set('chart.text.boxed', false);
158 funnel.Set('chart.title', 'Leads through to sales');
159 funnel.Set('chart.labels', ['A', 'B', 'C', 'D', 'E', 'F']);
160 funnel.Set('chart.shadow', true);
170 You can use these properties to control how the Funnel chart appears. You can set them by using the Set() method. Eg:
174 <b>myFunnel.Set('name', 'value');</b>
178 <li><a href="#margins">Margins</a></li>
179 <li><a href="#colors">Colors</a></li>
180 <li><a href="#labels and text">Labels and text</a></li>
181 <li><a href="#titles">Titles</a></li>
182 <li><a href="#shadow">Shadow</a></li>
183 <li><a href="#interactive features">Interactive features</a></li>
184 <li><a href="#key">Key</a></li>
185 <li><a href="#zoom">Zoom</a></li>
188 <a name="margins"></a>
189 <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">Margins</h3> <a name="chart.gutter"></a>
190 <b>chart.gutter</b><br />
191 The gutter of the chart. This is the whitespace area around the chart.<br /><i>Default: 25</i><br /><br />
192 <a name="colors"></a>
193 <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">Colors</h3> <a name="chart.colors"></a>
194 <b>chart.colors</b><br />
195 These are the colors used for each segment.<br /><i>Default: ['red', 'green', 'gray', 'blue', 'black', 'white']</i><br /><br />
196 <a name="labels and text"></a>
197 <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">Labels and text</h3> <a name="chart.labels"></a>
198 <b>chart.labels</b><br />
199 An array of the labels to be used on the graph. <br /><i>Default: An empty array</i><br /><br />
200 <a name="chart.text.font"></a>
201 <b>chart.text.font</b><br />
202 The font used to render the text.<br /><i>Default: Verdana</i><br /><br />
203 <a name="chart.text.color"></a>
204 <b>chart.text.color</b><br />
205 The color of the labels. <br /><i>Default: black</i><br /><br />
206 <a name="chart.text.size"></a>
207 <b>chart.text.size</b><br />
208 The size (in points) of the labels. <br /><i>Default: 10</i><br /><br />
209 <a name="chart.text.boxed"></a>
210 <b>chart.text.boxed</b><br />
211 Whether the text is contained within a white bounding box. In some cases this can help readability.<br /><i>Default: true</i><br /><br />
212 <a name="chart.text.halign"></a>
213 <b>chart.text.halign</b><br />
214 The horizontal alignment of the text. Can be <i>center</i> or <i>left</i>.<br /><i>Default: left</i><br /><br />
215 <a name="titles"></a>
216 <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">Titles</h3> <a name="chart.title"></a>
217 <b>chart.title</b><br />
218 The title of the graph, if any. <br /><i>Default: null</i><br /><br />
220 <a name="chart.title.background"></a>
221 <b>chart.title.background</b><br />
222 The background color (if any) for the title.<br />
223 <i>Default: null</i><br /><br />
225 <a name="chart.title.hpos"></a>
226 <b>chart.title.hpos</b><br />
227 This allows you to completely override the horizontal positioning of the title. It should be a number between 0 and 1, and is multiplied with the whole width of the canvas and then used as the horizontal position. <br /><i>Default: null</i><br /><br />
228 <a name="chart.title.vpos"></a>
229 <b>chart.title.vpos</b><br />
230 This allows you to completely override the vertical positioning of the title. It should be a number between 0 and 1, and is multiplied with the gutter and then used as the vertical position. It can be useful if you need to have a large gutter.<br /><i>Default: null</i><br /><br />
231 <a name="chart.title.color"></a>
232 <b>chart.title.color</b><br />
233 The color of the title.<br /> <i>Default: black</i><br /><br />
234 <a name="shadow"></a>
235 <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">Shadow</h3> <a name="chart.shadow"></a>
236 <b>chart.shadow</b><br />
237 Whether a drop shadow is applied to the Funnel chart. The funnel is the first to use the canvas shadow API, and as such they won't be supported on all browsers. Currently only Safari 4+ (possibly earlier versions too), Firefox 3.5+ and Chrome 2+ support canvas shadows.<br /><i>Default: false</i><br /><br />
238 <a name="chart.shadow.color"></a>
239 <b>chart.shadow.color</b><br />
240 The color of the drop shadow.<br /><i>Default: #666</i><br /><br />
241 <a name="chart.shadow.blur"></a>
242 <b>chart.shadow.blur</b><br />
243 The severity of the shadow blurring effect.<br /><i>Default: 3</i><br /><br />
244 <a name="chart.shadow.offsetx"></a>
245 <b>chart.shadow.offsetx</b><br />
246 The X offset of the shadow.<br /><i>Default: 3</i><br /><br />
247 <a name="chart.shadow.offsety"></a>
248 <b>chart.shadow.offsety</b><br />
249 The Y offset of the shadow.<br /><i>Default: 3</i><br /><br />
250 <a name="interactive features"></a>
251 <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.contextmenu"></a>
252 <b>chart.contextmenu</b><br />
253 An array of context menu items. More information on context menus is <a href="context.html">here</a>.<br /><i>Default: [] (An empty array)</i><br /><br />
254 <a name="chart.tooltips"></a>
255 <b>chart.tooltips</b><br />
256 An array of tooltips for the Funnel chart segments.<br /><i>Default: null</i><br /><br />
257 <a name="chart.tooltips.effect"></a>
258 <b>chart.tooltips.effect</b><br />
259 The animated effect that tooltips use - <i>fade</i> or <i>expand</i><br /><i>Default: fade</i><br /><br />
260 <a name="chart.tooltips.css.class"></a>
261 <b>chart.tooltips.css.class</b><br />
262 This is the name of the CSS class the graph uses.<br /><i>Default: RGraph_tooltip</i><br /><br />
263 <a name="chart.tooltips.override"></a>
264 <b>chart.tooltips.override</b><br />
265 If you wish to handle showing tooltips yourself, this should be a function object which does just that. There's more information on the <a href="tooltips.html">tooltips documentation page</a><br /><i>Default: null</i><br /><br />
266 <a name="chart.annotatable"></a>
267 <b>chart.annotatable</b><br />
268 Whether annotations are enabled for the chart (ie you can draw on the chart interactively.<br /><i>Default: false</i><br /><br />
269 <a name="chart.annotate.color"></a>
270 <b>chart.annotate.color</b><br />
271 If you do not allow the use of the palette, then this will be the only colour allowed for annotations.<br /><i>Default: black</i><br /><br />
272 <a name="chart.resizable"></a>
273 <b>chart.resizable</b><br />
274 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 />
279 <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">Key</h3>
281 <a name="chart.key"></a>
282 <b>chart.key</b><br />
283 An array of key information. <br />
284 <i>Default: [] (An empty array)</i><br /><br />
286 <a name="chart.key.background"></a>
287 <b>chart.key.background</b><br />
288 The color of the key background. Typically white, you could set this to something like rgba(255,255,255,0.7) to allow people to see things behind it.<br>
289 <i>Default: white</i><br /><br />
291 <a name="chart.key.position"></a>
292 <b>chart.key.position</b><br />
293 Determines the position of the key.Either <b>graph</b> (default), or <b>gutter</b>.<br />
294 <i>Default: graph</i><br /><br />
296 <b>chart.key.position.x</b><br />
297 This allows you to specify a specific X coordinate for the key.<br />
298 <i>Default: null</i><br /><br />
300 <b>chart.key.position.y</b><br />
301 This allows you to specify a specific Y coordinate for the key.<br />
302 <i>Default: null</i><br /><br />
304 <b>chart.key.position.gutter.boxed</b><br />
305 If you have the key in gutter mode (ie horizontal), this allows you to give a background color.<br />
306 <i>Default: true</i><br /><br />
308 <a name="chart.key.shadow"></a>
309 <b>chart.key.shadow</b><br />
310 Whether a small drop shadow is applied to the key.<br />
311 <i>Default: false</i><br /><br />
313 <a name="chart.key.shadow.color"></a>
314 <b>chart.key.shadow.color</b><br />
315 The color of the shadow.<br />
316 <i>Default: #666</i><br /><br />
318 <a name="chart.key.shadow.blur"></a>
319 <b>chart.key.shadow.blur</b><br />
320 The extent of the blurring effect used on the shadow.<br />
321 <i>Default: 3</i><br /><br />
323 <a name="chart.key.shadow.offsetx"></a>
324 <b>chart.key.shadow.offsetx</b><br />
325 The X offset of the shadow.<br />
326 <i>Default: 2</i><br /><br />
328 <a name="chart.key.shadow.offsety"></a>
329 <b>chart.key.shadow.offsety</b><br />
330 The Y offset of the shadow.<br />
331 <i>Default: 2</i><br /><br />
333 <b>chart.key.rounded</b><br />
334 This controls whether the corners of the key (in graph mode) are curved. If the key is gutter mode, this has no effect.<br />
335 <i>Default: false</i><br /><br />
337 <b>chart.key.color.shape</b><br />
338 This can be <i>square</i>, <i>circle</i> or <i>line</i> and controls how the color indicators in the key appear.<br />
339 <i>Default: square</i><br /><br />
344 <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>
345 <b>chart.zoom.mode</b><br />
346 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 />
347 <a name="chart.zoom.factor"></a>
348 <b>chart.zoom.factor</b><br />
349 This is the factor that the graph will be zoomed by (bigger values means more zoom)<br /><i>Default: 1.5</i><br /><br />
350 <a name="chart.zoom.fade.in"></a>
351 <b>chart.zoom.fade.in</b><br />
352 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 />
353 <a name="chart.zoom.fade.out"></a>
354 <b>chart.zoom.fade.out</b><br />
355 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 />
356 <a name="chart.zoom.hdir"></a>
357 <b>chart.zoom.hdir</b><br />
358 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 />
359 <a name="chart.zoom.vdir"></a>
360 <b>chart.zoom.vdir</b><br />
361 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 />
362 <a name="chart.zoom.delay"></a>
363 <b>chart.zoom.delay</b><br />
364 The delay (in milliseconds) between frames.<br /><i>Default: 50</i><br /><br />
365 <a name="chart.zoom.frames"></a>
366 <b>chart.zoom.frames</b><br />
367 The number of frames in the zoom animation.<br /><i>Default: 10</i><br /><br />
368 <a name="chart.zoom.shadow"></a>
369 <b>chart.zoom.shadow</b><br />
370 Whether or not the zoomed canvas has a shadow or not.<br /><i>Default: true</i><br /><br />
371 <a name="chart.zoom.thumbnail.width"></a>
372 <b>chart.zoom.thumbnail.width</b><br />
373 When the zoom is in thumbnail mode, this is the width (in pixels) of the thumbnail.<br /><i>Default: 75</i><br /><br />
374 <a name="chart.zoom.thumbnail.height"></a>
375 <b>chart.zoom.thumbnail.height</b><br />
376 When the zoom is in thumbnail mode, this is the height (in pixels) of the thumbnail.<br /><i>Default: 75</i><br /><br />
377 <a name="chart.zoom.background"></a>
378 <b>chart.zoom.background</b><br />
379 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 />
380 </div><!-- /DOCS --><br /><br />