1 <?php ob_start('ob_gzhandler') ?>
5 <meta http-equiv="X-UA-Compatible" content="chrome=1">
8 * o------------------------------------------------------------------------------o
9 * | This file is part of the RGraph package - you can learn more at: |
11 * | http://www.rgraph.net |
13 * | This package is licensed under the RGraph license. For all kinds of business |
14 * | purposes there is a small one-time licensing fee to pay and for personal, |
15 * | charity and educational purposes it is free to use. You can read the full |
17 * | http://www.rgraph.net/LICENSE.txt |
18 * o------------------------------------------------------------------------------o
21 <title>RGraph: HTML5 canvas graph library - scatter graph documentation</title>
22 <link rel="stylesheet" href="../css/website.css" type="text/css" media="screen" />
23 <link rel="icon" type="image/png" href="/favicon.png">
28 <!-- Social networking buttons -->
29 <script src="../libraries/RGraph.common.core.js" ></script>
32 function HideTwitterDIV ()
34 document.getElementById("twitter_div").style.opacity = 0;
35 document.getElementById("twitter_div").style.display = 'none';
39 function ShowTwitterDIV (e)
41 var e = RGraph.FixEventObject(document.all ? event : e);
42 var div = document.getElementById("twitter_div");
43 var img = document.getElementById("twitter_icon");
45 div.style.display = 'block';
46 div.style.left = (RGraph.getCanvasXY(img)[0] + img.offsetWidth - div.offsetWidth + 110) + 'px';
47 div.style.top = (RGraph.getCanvasXY(img)[1] - 1) + 'px';
52 setTimeout('document.getElementById("twitter_div").style.opacity = 0.2;', 25);
53 setTimeout('document.getElementById("twitter_div").style.opacity = 0.4;', 50);
54 setTimeout('document.getElementById("twitter_div").style.opacity = 0.6;', 100);
55 setTimeout('document.getElementById("twitter_div").style.opacity = 0.8;', 125);
56 setTimeout('document.getElementById("twitter_div").style.opacity = 1.0;', 150);
64 * This code installs the event handler that hides the Twitter DIV
67 window.attachEvent('onload', function () {document.body.attachEvent('onclick', HideTwitterDIV);});
69 window.addEventListener('click', HideTwitterDIV, false);
73 <!-- The twitter DIV -->
74 <div id="twitter_div" style="position: absolute;top: 0;left: 0;background-color: #eee;border: 2px dashed black;box-shadow: 0 0 15px #aaa;-moz-box-shadow: 0 0 15px #aaa;-webkit-box-shadow: 0 0 15px #aaa;padding: 3px;display: none;opacity: 0;z-index: 99;">
75 <a href="http://twitter.com/home/?status=RGraph%3A+HTML5+canvas+graph+library+based+on+the+HTML5+canvas+tag+http%3A%2F%2Fwww.rgraph.net+%23rgraph+%23html5+%23canvas" target="_blank" title="Share on Twitter" rel="nofollow" style="text-decoration: none">Tweet about RGraph</a><br>
76 <a href="http://twitter.com/_rgraph" style="text-decoration: none" rel="nofollow" target="_blank">Follow for HTML5 news</a>
79 <div id="social_icons" class="warning" style="top: 0; left: 5px; position: absolute">
82 if (navigator.userAgent.indexOf('Opera') == -1) {
83 document.getElementById("social_icons").style.position = 'fixed';
84 document.getElementById("twitter_div").style.position = 'fixed';
89 <b style="display: inline-block; position: relative; top: 1px">Bookmark and share:</b>
93 <a title="Bookmark with delicious" href="http://delicious.com/save?jump=close&v=4&noui&jump=close&url=http://www.rgraph.net¬es=RGraph%20is%20a%20HTML5%20based%20graph%20library%20supporting%20a%20wide%20range%20of%20different%20graph%20types:Bar,%20Bipolar,%20Donut,%20Funnel,%20Gantt,%20Horizontal%20Bar,%20LED,%20Line,%20Meter,%20Odometer,%20Pie,%20Progress%20Bar,%20Rose,%20RScatter,%20Scatter%20and%20Traditional%20Radar&title=RGraph:%20HTML5%20canvas%20graph%20library%20based%20on%20the%20HTML5%20canvas%20tag" target="_blank">
94 <img src="../images/delicious.png" alt="Bookmark with delicious" width="22" height="22" border="0" align="absmiddle" />
97 <a href="" target="_blank" onmouseover="if (document.getElementById('twitter_div').style.display == 'none') ShowTwitterDIV(event);" onclick="event.stopPropagation(); event.cancelBubble = true; return false">
98 <img src="../images/twitter.png" id="twitter_icon" alt="tweet this site" width="22" height="22" border="0" align="absmiddle" />
103 <a title="Post to Google Buzz!" href="" onclick="window.open('http://www.google.com/buzz/post?url=http://www.rgraph.net&imageurl=http://www.rgraph.net/images/logo.png', 'google_buzz_window', 'width=800,height=400,top=100,left=100'); return false">
104 <img src="../images/buzz.png" width="22" height="22" alt="Post to Google Buzz!" align="absmiddle" style="position: relative; top: -2px; border: 0" border="0"/>
108 <a title="Share RGraph on Facebook" href="" onclick="window.open('http://www.facebook.com/sharer.php?u=http://www.rgraph.net&t=RGraph:%20HTML5%20canvas%20graph%20library', 'facebook_window', 'width=500,height=300,top=100,left=100'); return false">
109 <img src="../images/facebook.png" width="22" height="22" alt="Post to Facebook" align="absmiddle" style="position: relative; top: -2px; border: 0" border="0"/>
112 <a href="mailto:share@friendfeed.com" title="Share on FriendFeed">
113 <img src="../images/friendfeed.png" width="22" height="22" alt="Share on FriendFeed" border="0" align="absmiddle" />
116 <a href="http://www.stumbleupon.com/submit?url=http://www.rgraph.net" target="_blank" title="Share on StumbleUpon" >
117 <img src="../images/stumble.png" alt="Stumble! this site" width="22" height="22" border="0" align="absmiddle" />
122 <!-- /Social networking buttons -->
124 <div id="breadcrumb">
125 <a href="../index.html">RGraph: HTML5 canvas graph library</a>
127 <a href="index.html">Documentation</a>
132 <h1>RGraph: HTML5 canvas graph library - Scatter graph documentation</h1>
135 if (RGraph.isIE8()) {
136 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>');
141 A scatter graph. Used to represent many data points over a period of time. For example, events occurring in a given year.
145 The example file is <a href="../examples/scatter.html">here</a>.
149 <li><a href="#properties">Properties</a></li>
150 <li><a href="#boxplots">Box plots</a></li>
151 <li><a href="#labelpoints">Specific points for labels on the X axis</a></li>
152 <li><a href="#custom.tickmarks">Custom tickmarks</a></li>
153 <li><a href="#colors">Note about colors and the key</a></li>
158 window.onload = function ()
161 [67,78,null, 'The winner!'], [67,40,'red'], [58,12], [78,56], [365,90], [360,300], [320,150], [15,45],
162 [16,43], [84,12], [67,89,'green'], [90,23,'green'], [23,80], [80,66], [55,66], [88,12], [43,45], [61,12],
165 var sg = new RGraph.Scatter('myScatter', data);
166 sg.Set('chart.background.barcolor1','rgba(255,255,255,1)');
167 sg.Set('chart.background.barcolor2', 'rgba(255,255,255,1)');
168 sg.Set('chart.grid.color', 'rgba(238,238,238,1)');
169 sg.Set('chart.gutter', 30);
170 sg.Set('chart.labels', ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']);
171 sg.Set('chart.xmax', 365); // Important!
178 As you can see each mark on the Scatter chart is made by supplying an array of up to 4 elements:
182 <li>The X value (required)</li>
183 <li>The Y value (required)</li>
184 <li>The color (optional)</li>
185 <li>The tooltip for this mark (optional)</li>
189 If you wish to specify a tooltip, but not a color (ie use the default color instead), you can pass null instead of a color.
193 <a name="properties"></a>
197 You can use these properties to control how the Scatter apears. You can set them by using the Set() method. Eg:
201 <b>myScatter.Set('chart.xmax', 365);</b>
205 <li><a href="#background">Background</a></li>
206 <li><a href="#labels and text">Labels and text</a></li>
207 <li><a href="#margins">Margins</a></li>
208 <li><a href="#axis properties">Axis properties</a></li>
209 <li><a href="#titles">Titles</a></li>
210 <li><a href="#scale">Scale</a></li>
211 <li><a href="#interactive features">Interactive features</a></li>
212 <li><a href="#line properties">Line properties</a></li>
213 <li><a href="#key">Key</a></li>
214 <li><a href="#zoom">Zoom</a></li>
215 <li><a href="#miscellaneous">Miscellaneous</a></li>
219 <a name="background"></a>
220 <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">Background</h3> <a name="chart.background.barcolor1"></a>
221 <b>chart.background.barcolor1</b><br />
222 The color of the background bars. <br /><i>Default: rgba(0,0,0,0)</i><br /><br />
223 <a name="chart.background.barcolor2"></a>
224 <b>chart.background.barcolor2</b><br />
225 The color of the background bars. <br /><i>Default: rgba(0,0,0,0)</i><br /><br />
226 <a name="chart.background.grid"></a>
227 <b>chart.background.grid</b><br />
228 Whether to show the background grid or not. <br /><i>Default: true</i><br /><br />
229 <a name="chart.background.grid.color"></a>
230 <b>chart.background.grid.color</b><br />
231 The color of the background grid. <br /><i>Default: #eee</i><br /><br />
233 <a name="chart.background.hbars"></a>
234 <b>chart.background.hbars</b><br />
235 An array of information stipulating horizontal coloured bars. You can use these to indicate limits. Eg:
237 <pre class="code">myScatter.Set('chart.background.hbars', [[75, 10, 'yellow'], [85, 15, 'red']]);</pre>
239 This would give you two bars, one red and a lower yellow bar. The units correspond to your scale, and are the
240 starting point and the height.<br />
241 <i>Default: null</i><br /><br />
243 <b>chart.background.vbars</b><br />
244 An array of vertical bar information. They're specified like his:
245 <pre class="code">myScatter.Set('chart.background.vbars', [[0, 181, 'rgba(0,255,0,0.5)']]);</pre>
246 <i>Default: null</i><br /><br />
248 <a name="chart.background.grid.border"></a>
249 <b>chart.background.grid.border</b><br />
250 Determines whether a border line is drawn around the grid.<br /><i>Default: true</i><br /><br />
251 <a name="chart.background.grid.hlines"></a>
252 <b>chart.background.grid.hlines</b><br />
253 Determines whether to draw the horizontal grid lines.<br /><i>Default: true</i><br /><br />
254 <a name="chart.background.grid.vlines"></a>
255 <b>chart.background.grid.vlines</b><br />
256 Determines whether to draw the vertical grid lines.<br /><i>Default: true</i><br /><br />
257 <a name="chart.background.grid.autofit"></a>
258 <b>chart.background.grid.autofit</b><br />
259 Instead of specifying a pixel width/height for the background grid, you can use autofit and specify how many horizontal and vertical lines you want.<br /><i>Default: false</i><br /><br />
260 <a name="chart.background.grid.autofit.numhlines"></a>
261 <b>chart.background.grid.autofit.numhlines</b><br />
262 When using autofit this allows you to specify how many horizontal grid lines you want. <br /><i>Default: 7</i><br /><br />
263 <a name="chart.background.grid.autofit.numvlines"></a>
264 <b>chart.background.grid.autofit.numvlines</b><br />
265 When using autofit this allows you to specify how many vertical grid lines you want. <br /><i>Default: 20</i><br /><br />
266 <a name="labels and text"></a>
267 <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>
268 <b>chart.labels</b><br />
269 An array of the X labels for the graph. <br /><i>Default: [] (An empty array)</i><br /><br />
270 <a name="chart.ylabels"></a>
271 <b>chart.ylabels</b><br />
272 A boolean (<i>true</i> or <i>false</i>) that controls whether the graph has Y labels. <br /><i>Default: true</i><br /><br />
273 <a name="chart.ylabels.count"></a>
274 <b>chart.ylabels.count</b><br />
275 A value (<i>1, 3 or 5</i>) that controls how many Y labels there are. <br /><i>Default: 5</i><br /><br />
276 <a name="chart.text.font"></a>
277 <b>chart.text.font</b><br />
278 The font used to render the text.<br /><i>Default: Verdana</i><br /><br />
279 <a name="chart.text.color"></a>
280 <b>chart.text.color</b><br />
281 The color of the labels. <br /><i>Default: black</i><br /><br />
282 <a name="chart.text.size"></a>
283 <b>chart.text.size</b><br />
284 The size of the text (in points).<br /><i>Default: 10</i><br /><br />
285 <a name="chart.text.angle"></a>
286 <b>chart.text.angle</b><br />
287 The angle of the horizontal text labels (at the bottom of the graph). This can be one of three values - 0, 45 or 90.<br /><i>Default: 0 (Horizontal)</i><br /><br />
288 <a name="margins"></a>
289 <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>
290 <b>chart.gutter</b><br />
291 The gutter on the graph (the area outside of the axes). <br /><i>Default: 25</i><br /><br />
292 <a name="axis properties"></a>
293 <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">Axis properties</h3> <a name="chart.xmax"></a>
294 <b>chart.xmax</b><br />
295 The maximum X axis value you wish to set. For example if you're displaying products sold in a year, you might use 365. <br /><i>Default: none - must be supplied</i><br /><br />
296 <a name="chart.ymax"></a>
297 <b>chart.ymax</b><br />
298 The optional maximum Y scale value. If not specified then it will be calculated.<br /><i>Default: null (It's calculated)</i><br /><br />
299 <a name="chart.ymin"></a>
300 <b>chart.ymin</b><br />
301 The optional minimum Y scale value. If not specified it will be zero.<br /><i>Default: null</i><br /><br />
302 <a name="chart.ticksize"></a>
303 <b>chart.ticksize</b><br />
304 The size of the tickmarks. <br /><i>Default: 3</i><br /><br />
305 <a name="chart.tickmarks"></a>
306 <b>chart.tickmarks</b><br />
307 The style of the tickmarks. Can be: <i>cross</i>, <i>plus</i>, <i>circle</i>, <i>diamond</i>, <i>square</i> or <i>null</i> (no tickmarks). <br /><i>Default: cross</i><br /><br />
308 <a name="chart.xticks"></a>
309 <b>chart.xticks</b><br />
310 This controls whether the X axis tickmarks are drawn.<br /><i>Default: true</i><br /><br />
311 <a name="chart.xaxispos"></a>
312 <b>chart.noendxtick</b><br />
313 Whether to draw an end X tick. Usually used when combining Scatter charts<br /><i>Default: false</i><br /><br />
314 <a name="chart.xaxispos"></a>
315 <b>chart.xaxis</b><br />
316 This controls whether the X axis is drawn.<br /><i>Default: true</i><br /><br />
317 <a name="chart.xaxispos"></a>
318 <b>chart.xaxispos</b><br />
319 Where the X axis should be drawn. Can be either <i>center</i> or <i>bottom</i>.<br /><i>Default: bottom</i><br /><br />
320 <a name="chart.yaxispos"></a>
321 <b>chart.yaxispos</b><br />
322 Where the Y axis should be drawn. Can be either <i>left</i> or <i>right</i>.<br /><i>Default: left</i><br /><br />
323 <a name="chart.yaxispos"></a>
324 <b>chart.yaxispos</b><br />
325 Where the Y axis should be drawn. Can be either <i>left</i> or <i>right</i>.<br /><i>Default: left</i><br /><br />
326 <a name="chart.axis.color"></a>
327 <b>chart.axis.color</b><br />
328 The color of the axes.<br /><i>Default: black</i><br /><br />
329 <a name="chart.noaxes"></a>
330 <b>chart.noaxes</b><br />
331 If this is set to true, no axes will be drawn. <br /><i>Default: false</i><br /><br />
332 <a name="titles"></a>
333 <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>
334 <b>chart.title</b><br />
335 The title of the scatter graph. <br /><i>Default: none</i><br /><br />
337 <a name="chart.title.background"></a>
338 <b>chart.title.background</b><br />
339 The background color (if any) for the title.<br />
340 <i>Default: null</i><br /><br />
342 <a name="chart.title.hpos"></a>
343 <b>chart.title.hpos</b><br />
344 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 />
345 <a name="chart.title.vpos"></a>
346 <b>chart.title.vpos</b><br />
347 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 />
348 <a name="chart.title.color"></a>
349 <b>chart.title.color</b><br />
350 The color of the title.<br /> <i>Default: black</i><br /><br />
351 <a name="chart.title.xaxis"></a>
352 <b>chart.title.xaxis</b><br />
353 This allows to specify a title for the X axis.<br /><i>Default: none</i><br /><br />
354 <a name="chart.title.yaxis"></a>
355 <b>chart.title.yaxis</b><br />
356 This allows to specify a title for the Y axis.<br /><i>Default: none</i><br /><br />
357 <a name="chart.title.xaxis.pos"></a>
358 <b>chart.title.xaxis.pos</b><br />
359 This is multiplied with the gutter to give the position of the X axis title.<br /><i>Default: 0.25</i><br /><br />
360 <a name="chart.title.yaxis.pos"></a>
361 <b>chart.title.yaxis.pos</b><br />
362 This is multiplied with the gutter to give the position of the Y axis title.<br /><i>Default: 0.25</i><br /><br />
365 <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">Scale</h3> <a name="chart.scale.decimals"></a>
366 <b>chart.scale.decimals</b><br />
367 The number of decimal places to display for the Y scale.<br /><i>Default: 0</i><br /><br />
368 <a name="chart.scale.point"></a>
369 <b>chart.scale.point</b><br />
370 The character used as the decimal point.<br /><i>Default: .</i><br /><br />
371 <a name="chart.scale.thousand"></a>
372 <b>chart.scale.thousand</b><br />
373 The character used as the thousand separator<br /><i>Default: ,</i><br /><br />
375 <a name="chart.scale.round"></a>
376 <b>chart.scale.round</b><br />
377 Whether to round the maximum scale value up or not. This will produce slightly better scales in some instances.<br />
378 <i>Default: null</i><br /><br />
380 <a name="chart.units.pre"></a>
381 <b>chart.units.pre</b><br />
382 The units (if any) that the Y axis is measured in (these are preppended to the number).<br /><i>Default: none</i><br /><br />
383 <a name="chart.units.post"></a>
384 <b>chart.units.post</b><br />
385 The units (if any) that the Y axis is measured in (these are appended to the number).<br /><i>Default: none</i><br /><br />
387 <a name="interactive features"></a>
388 <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>
390 <p style="background-color: #ffe; padding: 3px; border: 1px black solid; border-radius: 5px">
391 <b>Note:</b> Unlike other charts, the Scatter chart tooltips are specified as part of the data array. See <a href="#top">above</a>.
394 <a name="chart.tooltips.effect"></a>
395 <b>chart.tooltips.effect</b><br />
396 The animated effect used for showing tooltips.<br />
397 <i>Default: fade</i><br /><br />
399 <a name="chart.tooltips.hotspot"></a>
400 <b>chart.tooltips.hotspot</b><br />
401 This controls the size of the hotspot on the chart for tooltips.<br /><i>Default: 3</i><br /><br />
402 <a name="chart.tooltips.css.class"></a>
403 <b>chart.tooltips.css.class</b><br />
404 This is the name of the CSS class the graph uses.<br /><i>Default: RGraph_tooltip</i><br /><br />
405 <a name="chart.tooltips.override"></a>
406 <b>chart.tooltips.override</b><br />
407 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 />
408 <a name="chart.tooltips.coords.adjust"></a>
409 <b>chart.tooltips.coords.adjust</b><br />
410 If you translate() before drawing your graph to reduce wasted space, the coords used for tooltips may need adjusting by how much you translate() by. This setting is how to do it. It should be an array of the X/Y adjustments. There's an example of this on the <a href="misc.html#reducing.white.space">misc documentation</a> page.<br /><i>Default: [0,0]</i><br /><br />
411 <a name="chart.crosshairs"></a>
412 <b>chart.crosshairs</b><br />
413 If true, you will get a crosshair centering on the current mouse position.<br /><i>Default: false</i><br /><br />
414 <a name="chart.crosshairs.linewidth"></a>
415 <b>chart.crosshairs.linewidth</b><br />
416 This controls the linewidth of the crosshairs.<br /><i>Default: 1</i><br /><br />
417 <a name="chart.crosshairs.color"></a>
418 <b>chart.crosshairs.color</b><br />
419 The color of the crosshairs.<br /><i>Default: #333</i><br /><br />
420 <a name="chart.crosshairs.coords"></a>
421 <b>chart.crosshairs.coords</b><br />
422 If true, this will show the coordinates that the crosshairs are currently over.<br /><i>Default: false</i><br /><br />
423 <a name="chart.crosshairs.fixed"></a>
424 <b>chart.crosshairs.fixed</b><br />
425 If true, this makes the coordinates static (attached), instead of following the pointer around.<br /><i>Default: false</i><br /><br />
426 <a name="chart.crosshairs.fadeout"></a>
427 <b>chart.crosshairs.fadeout</b><br />
428 If true, when you move your mouse off of the canvas the coordinates will fade out.<br /><i>Default: false</i><br /><br />
429 <a name="chart.crosshairs.labels.x"></a>
430 <b>chart.crosshairs.labels.x</b><br />
431 Instead ox X and Y, you can specify more meaningful labels.<br /><i>Default: X</i><br /><br />
432 <a name="chart.crosshairs.labels.y"></a>
433 <b>chart.crosshairs.labels.y</b><br />
434 Instead ox X and Y, you can specify more meaningful labels.<br /><i>Default: Y</i><br /><br />
435 <a name="chart.contextmenu"></a>
436 <b>chart.contextmenu</b><br />
437 An array of context menu items. More information on context menus is <a href="context.html">here</a>.<br /><i>Default: null</i><br /><br />
438 <a name="chart.annotatable"></a>
439 <b>chart.annotatable</b><br />
440 Whether annotations are enabled for the chart (ie you can draw on the chart interactively.<br /><i>Default: false</i><br /><br />
441 <a name="chart.annotate.color"></a>
442 <b>chart.annotate.color</b><br />
443 If you do not allow the use of the palette, then this will be the only colour allowed for annotations.<br /><i>Default: #000</i><br /><br />
444 <a name="chart.resizable"></a>
445 <b>chart.resizable</b><br />
446 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 />
447 <a name="line properties"></a>
448 <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">Line properties</h3> <a name="chart.line"></a>
449 <b>chart.line</b><br />
450 Whether to show a connecting line (like in the sixth example). <br /><i>Default: false</i><br /><br />
451 <a name="chart.line.colors"></a>
452 <b>chart.line.colors</b><br />
453 The colors of the lines connecting the tick marks. <br /><i>Default: ['green', 'red']</i><br /><br />
454 <a name="chart.line.shadow.color"></a>
455 <b>chart.line.shadow.color</b><br />
456 The color of the lines shadow (if any). <br /><i>Default: rgba(0,0,0,0) (invisible)</i><br /><br />
457 <a name="chart.line.shadow.offsetx"></a>
458 <b>chart.line.shadow.offsetx</b><br />
459 The X offset of the lines shadow. <br /><i>Default: 3</i><br /><br />
460 <a name="chart.line.shadow.offsety"></a>
461 <b>chart.line.shadow.offsety</b><br />
462 The Y offset of the lines shadow. <br /><i>Default: 3</i><br /><br />
463 <a name="chart.line.shadow.blur"></a>
464 <b>chart.line.shadow.blur</b><br />
465 The severity of the line shadows blurring effect. <br /><i>Default: 2</i><br /><br />
466 <a name="chart.line.stepped"></a>
467 <b>chart.line.stepped</b><br />
468 Like the line chart, Scatter chart lines can be stepped by setting this to true <br /><i>Default: false</i><br /><br />
474 <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>
476 <a name="chart.key"></a>
477 <b>chart.key</b><br />
478 An array of key information. <br />
479 <i>Default: [] (An empty array)</i><br /><br />
481 <a name="chart.key.background"></a>
482 <b>chart.key.background</b><br />
483 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>
484 <i>Default: white</i><br /><br />
486 <a name="chart.key.position"></a>
487 <b>chart.key.position</b><br />
488 Determines the position of the key.Either <b>graph</b> (default), or <b>gutter</b>.<br />
489 <i>Default: graph</i><br /><br />
491 <b>chart.key.position.x</b><br />
492 This allows you to specify a specific X coordinate for the key.<br />
493 <i>Default: null</i><br /><br />
495 <b>chart.key.position.y</b><br />
496 This allows you to specify a specific Y coordinate for the key.<br />
497 <i>Default: null</i><br /><br />
499 <b>chart.key.position.gutter.boxed</b><br />
500 If you have the key in gutter mode (ie horizontal), this allows you to give a background color.<br />
501 <i>Default: true</i><br /><br />
503 <a name="chart.key.shadow"></a>
504 <b>chart.key.shadow</b><br />
505 Whether a small drop shadow is applied to the key.<br />
506 <i>Default: false</i><br /><br />
508 <a name="chart.key.shadow.color"></a>
509 <b>chart.key.shadow.color</b><br />
510 The color of the shadow.<br />
511 <i>Default: #666</i><br /><br />
513 <a name="chart.key.shadow.blur"></a>
514 <b>chart.key.shadow.blur</b><br />
515 The extent of the blurring effect used on the shadow.<br />
516 <i>Default: 3</i><br /><br />
518 <a name="chart.key.shadow.offsetx"></a>
519 <b>chart.key.shadow.offsetx</b><br />
520 The X offset of the shadow.<br />
521 <i>Default: 2</i><br /><br />
523 <a name="chart.key.shadow.offsety"></a>
524 <b>chart.key.shadow.offsety</b><br />
525 The Y offset of the shadow.<br />
526 <i>Default: 2</i><br /><br />
528 <b>chart.key.rounded</b><br />
529 This controls whether the corners of the key (in graph mode) are curved. If the key is gutter mode, this has no effect.<br />
530 <i>Default: false</i><br /><br />
532 <b>chart.key.color.shape</b><br />
533 This can be <i>square</i>, <i>circle</i> or <i>line</i> and controls how the color indicators in the key appear.<br />
534 <i>Default: square</i><br /><br />
541 <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>
542 <b>chart.zoom.mode</b><br />
543 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 />
544 <a name="chart.zoom.factor"></a>
545 <b>chart.zoom.factor</b><br />
546 This is the factor that the graph will be zoomed by (bigger values means more zoom)<br /><i>Default: 1.5</i><br /><br />
547 <a name="chart.zoom.fade.in"></a>
548 <b>chart.zoom.fade.in</b><br />
549 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 />
550 <a name="chart.zoom.fade.out"></a>
551 <b>chart.zoom.fade.out</b><br />
552 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 />
553 <a name="chart.zoom.hdir"></a>
554 <b>chart.zoom.hdir</b><br />
555 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 />
556 <a name="chart.zoom.vdir"></a>
557 <b>chart.zoom.vdir</b><br />
558 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 />
559 <a name="chart.zoom.delay"></a>
560 <b>chart.zoom.delay</b><br />
561 The delay (in milliseconds) between frames.<br /><i>Default: 50</i><br /><br />
562 <a name="chart.zoom.frames"></a>
563 <b>chart.zoom.frames</b><br />
564 The number of frames in the zoom animation.<br /><i>Default: 10</i><br /><br />
565 <a name="chart.zoom.shadow"></a>
566 <b>chart.zoom.shadow</b><br />
567 Whether or not the zoomed canvas has a shadow or not.<br /><i>Default: true</i><br /><br />
568 <a name="chart.zoom.thumbnail.width"></a>
569 <b>chart.zoom.thumbnail.width</b><br />
570 When the zoom is in thumbnail mode, this is the width (in pixels) of the thumbnail.<br /><i>Default: 75</i><br /><br />
571 <a name="chart.zoom.thumbnail.height"></a>
572 <b>chart.zoom.thumbnail.height</b><br />
573 When the zoom is in thumbnail mode, this is the height (in pixels) of the thumbnail.<br /><i>Default: 75</i><br /><br />
574 <a name="chart.zoom.background"></a>
575 <b>chart.zoom.background</b><br />
576 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 />
577 <a name="miscellaneous"></a>
578 <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">Miscellaneous</h3> <a name="chart.defaultcolor"></a>
579 <b>chart.defaultcolor</b><br />
580 This is the default color of tick marks, which is used if a color isn't given.<br /><i>Default: #000</i><br /><br />
581 <a name="chart.boxplot.width"></a>
582 <b>chart.boxplot.width</b><br />
583 This stipulates the default width of boxes. For more on boxplots, see <a href="#boxplots">here</a>.<br /><i>Default: 8</i><br /><br />
584 </div><!-- /DOCS --><br /><br />
586 <a name="boxplots"></a>
590 Instead of a single Y value, you have the ability to specify an array of 5, 6, 7 or 8 values, which will be used to make a box plot.
591 The <a href="../examples/scatter.html#boxplots">example page shows a box plot</a>. These values are (in order):
594 <li>Lower whisker</li>
595 <li>Bottom of box</li>
596 <li>Middle value (which isn't necessarily in the center of the box - this depends on your data)</li>
598 <li>Upper whisker</li>
599 <li>Upper color (optional)</li>
600 <li>Lower color (optional)</li>
601 <li>Width (optional)</li>
606 scatter8 = new RGraph.Scatter('scatter8', [
607 [10,<span style="color: green">[1,1,16,24,24, 'red', 'green']</span>],
608 [105,<span style="color: green">[5,10,15,25,25, 'red', 'green']</span>],
609 [125,<span style="color: green">[10,15,25,35,45, 'red', 'green']</span>],
610 [325,<span style="color: green">[10,15,25,35,45, 'red', 'green', 30]</span>]
612 scatter8.Set('chart.title', 'An example of a boxplot');
613 scatter8.Set('chart.labels', ['Q1', 'Q2', 'Q3', 'Q4']);
614 scatter8.Set('chart.xmax', 365);
615 scatter8.Set('chart.ymax', 50);
616 scatter8.Set('chart.boxplot.width', 12); // The default width
623 <a name="labelpoints"></a>
624 <h2>Specific points for labels on the X axis</h2>
627 Instead of a simple string which is used as the label, each entry of the chart.labels array can be a two element array
628 consisting of the label, and the X value that the label should be placed at. For example:
632 scatter.Set('chart.labels', [
642 <a name="custom.tickmarks"></a>
643 <h2>Custom tickmarks</h2>
646 If none of the available tickmark styles are suitable, you can instead specify a function object that draws the tickmark,
647 enabling you to draw the tickmark yourself. For example:
652 line.Set('chart.tickmarks', myTick);
655 * The function that is called once per tickmark, to draw it
657 * @param object obj The graph object
658 * @param object data The graph data
659 * @param number x The X coordinate
660 * @param number y The Y coordinate
661 * @param number xVal The X value
662 * @param number yVal The Y value
663 * @param number xMax The maximum X scale value
664 * @param number xMax The maximum Y scale value
665 * @param string color The color of the tickmark
667 function myTick (obj, data, x, y, xVal, yVal, xMax, yMax, color)
669 // Draw your custom tick here
674 <a name="colors"></a>
675 <h2>Note about colors and the key</h2>
678 If you're using a key you may need to set <i>chart.line.colors</i> to allow it to use the correct colors. For example:
681 <pre class="code">myObj.Set('chart.line.colors', ['red','green','blue']);</pre>