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After ajax reads data, it uses jqchart to display charts. ajaxjqchart
This document describes how to use jqchart to display charts after ajax reads data. Share it with you for your reference. The specific analysis is as follows:
Recently, chart effects need to be displayed in the project. The originally collected chart plug-ins are useful.
However, there are many differences with jqchart.
Effect:
I wrote jqchart again.
The first solution is not to display the X and Y axes:
// Convert each DIV into // cancel the title display/* this. titleBox // Title = this. mkBoxElement ('T', this. op. titleLeft, this. op. titleTop ). appendTo (this. jQcanvasBox ). css ('width', this. op. width-this.op.titleLeft) // fix for safari3 2007.12.4. get (0); * // cancel the Y axis Number Display/* this. scaleYBox // Y your quota has been reached before = this. mkBoxElement ('y', this. op. scaleYLeft, this. op. scaleYTop ). appendTo (this. jQcanvasBox ). get (0); * // cancel the X axis category display/* this. scaleXBox // X contains invalid variable = this. mkBoxElement ('x', this. op. scaleXLeft, this. op. scaleXTop ). appendTo (this. jQcanvasBox ). get (0 );*/
Secondly, for the inflection point text, the original display is the corresponding data value, now you need to display the corresponding X axis Name:
If (x <= op. width) {var dx = x-op.paddingL, dy = y-op.paddingT; var dxx = I <= 0? (Dx + op. labelDataOffsetX-5 + 'px ') :( dx + op. labelDataOffsetX-20 + 'px'); // coordinate the X axis offset of the coordinate point var dyy = I % 2? (Dy + op. labelDataOffsetY-25 + 'px ') :( dy + op. labelDataOffsetY-5 + 'px '); // coordinate the y-axis offset of it. wrtText (// dx + op. labelDataOffsetX-20 + 'px ', dxx, // dy + op. labelDataOffsetY-10 + 'px ', dyy, // op. rows [I], // pre: coordinate data value op.txt pointers [I], // cychai: coordinate text op, "# jQchart-data-D-" + op. id ).css ('color', (op. data. length = 1 )? '#333': strokeStyle). css ({"width": "100px", "font-size": "12px"}); // cychai: style Control
The default data is displayed. The next step is collaboration with development.
I want to use ajax to obtain data asynchronously and display it on the foreground.
Here, I use chartdata.html on an Example page, that is, the required data page.
[{LabelX: ["design", "portability", "ease of use", "battery standby", "Camera function", "zoom"], data: [5, 7, 2, 3, 9, 4]}]
At the front-end, I request this page through ajax to process the returned json data and pass it to chartSetting:
$ (Function () {$. ajax ({url: "chartdata.html", type: "GET", success: function (cdata) {showDDChart (cdata) ;}}); function showDDChart (cdata) {var dd_chart = eval (cdata) [0]; var chartSetting = {config: {title: "", titleLeft: 70, labelX: dd_chart.labelX, // labelX: ["design", "portability", "usability", "battery standby", "Camera function", "zoom"], scaleY: {min: 0, max: 10, gap: 2}, width: 300 + 25, height: 125 + 50, paddingL: 10, paddingT: 10}, // data, 4, 9] data: dd_chart.data}; $ ('# canvasmyid '). jQchart (chartSetting );}});
Complete html page:
<Head> <! -- [If IE]> <mce: script src = "excanvas-compressed.js" mce_src = "excanvas-compressed.js" type = "text/javascript"> </mce: script> <! [Endif] --> <mce: script src = "http://jsgt.org/lib/jquery/plugin/jqchart/sample/v003/lib/jquery-1.2.3.min.js" mce_src = "http://jsgt.org/lib/jquery/plugin/jqchart/sample/v003/lib/jquery-1.2.3.min.js" type = "text/javascript"> </mce: script> <mce: script src = "jquery. jqchart. js "mce_src =" jquery. jqchart. js "type =" text/javascript "charset =" UTF-8 "> </mce: script>OK, all done!
I hope this article will help you with jQuery programming.
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