amchart学习笔记

Joomla使用过程中使用到分析组件(com_analytics)，已经相关的的插件! 插件当中使用到了amchart (真复杂...) 以下是amchart相关资料 总的来说： amcharts 要一个“配置文件”（setting.xml），一个数据文件(amile_data.xml)，一个 SWFObject.js，一个对应的 SWF 就可以生成漂亮的统计报表了 1 SWFObject v1.5的对象结构 view plaincopy to clipboardprint? deconcept?? ??? util?? ??????? getRequestParameter(_2b) // 取得url参数value。_2b是URL的key。?? ??? SWFObjectUtil?? ??????? getPlayerVersion() // 取得版本号对象。major.minor.rev。?? ??????? cleanupSWFs() // 清除页面上所有<OBJECT>元素。?? ??? SWFObject(_1,id,w,h,_5,c,_7,_8,_9,_a)?? ?????????????????????????????????? // _1: swf，指定SWF文件路径。?? ?????????????????????????????????? // _id: id，<embed>或者<object>标签的id。?? ?????????????????????????????????? // w: width，属性width。?? ?????????????????????????????????? // h: height，属性height。?? ?????????????????????????????????? // _5: version，flash版本，默认自动会去读取本地的flash插件版本的。?? ?????????????????????????????????? // c: bgcolor，背景色。?? ?????????????????????????????????? // _7: quality，品质(low,high,autolow,autohigh,best ) 。?? ?????????????????????????????????? // _8: xiRedirectUrl?? ?????????????????????????????????? // _9: redirectUrl?? ?????????????????????????????????? // _a: url参数key?? ??????? useExpressInstall(_d) // 设置xiSWFPath,useExpressInstall属性?? ??????? setAttribute(_e,_f) // 设置属性attributes。_e是key，_f是value。?? ??????? getAttribute(_10) // 取得属性attributes中的值。_10是key。?? ??????? addParam(_l1,_l2) // 设置参数params。_l1是key，_l2是value。?? ??????? getParams() // 取得params。?? ??????? addVariable(_l3,_l4) // 设置变量variables。_13是key，_14是value。?? ??????? getVariable(_l5) // 取得变量variables中的值。?? ??????? getVariables() // 取得变量variables。?? ??????? getVariablePairs() // 取得变量variables的key=value对数组。?? ??????? getSWFHTML() // 返回flash嵌入的HTML?? ???????????????????? // 例如：?? ???????????????????? // <embed type="application/x-shockwave-flash"??? ???????????????????? // src="/amchart/amchart/amcolumn/amcolumn.swf" mce_src="amchart/amchart/amcolumn/amcolumn.swf"??? ???????????????????? // width="520" height="380"??? ???????????????????? // style="undefined" mce_style="undefined"??? ???????????????????? // id="amcolumn" name="amcolumn"??? ???????????????????? // bgcolor="#FFFFFF"??? ???????????????????? // quality="high"? ???????????????????? // flashvars="path=/amchar/amchar/amcolumn/&settings_file=amcolumn_settings.xml&data_file=amcolumn_data.txt&preloader_color=#000000"/> ??????? write(_20) // 写入flash插入的位置。_20可以是id的名称或者是一个dom结点。?? ??? PlayerVersion(_29) // 创建版本号对象。?? ??????? versionIsValid(fv) // 验证flash插件的当前版本号是否兼容fv的版本号（大于等于）。?? getQueryParamValue = deconcept.util.getRequestParameter;?? FlashObject = deconcept.SWFObject;?? SWFObject = deconcept.SWFObject;? deconcept ??? util ??????? getRequestParameter(_2b) // 取得url参数value。_2b是URL的key。 ??? SWFObjectUtil ??????? getPlayerVersion() // 取得版本号对象。major.minor.rev。 ??????? cleanupSWFs() // 清除页面上所有<OBJECT>元素。 ??? SWFObject(_1,_a) ?????????????????????????????????? // _1: swf，指定SWF文件路径。 ?????????????????????????????????? // _id: id，<embed>或者<object>标签的id。 ?????????????????????????????????? // w: width，属性width。 ?????????????????????????????????? // h: height，属性height。 ?????????????????????????????????? // _5: version，flash版本，默认自动会去读取本地的flash插件版本的。 ?????????????????????????????????? // c: bgcolor，背景色。 ?????????????????????????????????? // _7: quality，品质(low,best ) 。 ?????????????????????????????????? // _8: xiRedirectUrl ?????????????????????????????????? // _9: redirectUrl ?????????????????????????????????? // _a: url参数key ??????? useExpressInstall(_d) // 设置xiSWFPath,useExpressInstall属性 ??????? setAttribute(_e,_f) // 设置属性attributes。_e是key，_f是value。 ??????? getAttribute(_10) // 取得属性attributes中的值。_10是key。 ??????? addParam(_l1,_l2) // 设置参数params。_l1是key，_l2是value。 ??????? getParams() // 取得params。 ??????? addVariable(_l3,_l4) // 设置变量variables。_13是key，_14是value。 ??????? getVariable(_l5) // 取得变量variables中的值。 ??????? getVariables() // 取得变量variables。 ??????? getVariablePairs() // 取得变量variables的key=value对数组。 ??????? getSWFHTML() // 返回flash嵌入的HTML ???????????????????? // 例如： ???????????????????? // <embed type="application/x-shockwave-flash" ???????????????????? // src="/amchart/amchart/amcolumn/amcolumn.swf" mce_src="amchart/amchart/amcolumn/amcolumn.swf" ???????????????????? // width="520" height="380" ???????????????????? // style="undefined" mce_style="undefined" ???????????????????? // id="amcolumn" name="amcolumn" ???????????????????? // bgcolor="#FFFFFF" ???????????????????? // quality="high" ???????????????????? // flashvars="path=/amchar/amchar/amcolumn/&settings_file=amcolumn_settings.xml&data_file=amcolumn_data.txt&preloader_color=#000000"/> ??????? write(_20) // 写入flash插入的位置。_20可以是id的名称或者是一个dom结点。 ??? PlayerVersion(_29) // 创建版本号对象。 ??????? versionIsValid(fv) // 验证flash插件的当前版本号是否兼容fv的版本号（大于等于）。 getQueryParamValue = deconcept.util.getRequestParameter; FlashObject = deconcept.SWFObject; SWFObject = deconcept.SWFObject; 2 数据文件 支持csv、xml格式。 csv实际上是一个文本文件，而非excel文件，所以，可以直接使用文本文件来命名。 每一列的数据采用“;”或“,”分隔都可以。 例如： // amcolumn_data.txt 2003;2.5 2004;4.6 2005;5.8 2006;3.8 2007;4.8 2008;6.8 2009;7.8 3 配置文件 例如：view plaincopy to clipboardprint? // amcolumn_settings.xml?? <?xml version="1.0" encoding="UTF-8"?>? <settings>? ?? <!-- chart config -->? ?? <data_type>csv</data_type>???????????????????????????????????????????????????? <!-- [xml] (xml / csv) -->? ?? <digits_after_decimal>2</digits_after_decimal>? ?? <legend>? ????? <enabled>false</enabled>? ?? </legend>? ?? <!-- plugin config -->????? ?? <plugins>? ??? <!-- value indicator plugin is suitable for line chart,column chart & xy chart -->? ??? <plugin file="/amchart/amchart/amcolumn/plugins/value_indicator.swf" position="above">????? <!-- file should be located in "path" folder. position can be "behind" or "above". "behind" means that the plugin will be loaded behind graphs -->? ????? <chart_type>column</chart_type>???????????????????????????????????????????? <!-- [line] (line / column / xy) this plugin can be used with line or with column chart -->? ????? <axis></axis>?????????????????????????????????????????????????????????????? <!-- [left] (left / right / x / y) if used with line chat use left or right,if used with xy chart,use x or y -->? ????? <line_color>#000000</line_color>??????????????????????????????????????????? <!-- [#BBBB00] (hex color code) -->? ????? <line_alpha></line_alpha>?????????????????????????????????????????????????? <!-- [100] (0 - 100) -->? ????? <text_color>#000000</text_color>??????????????????????????????????????????? <!-- [settings.text_color] -->? ????? <text_size>13</text_size>?????????????????????????????????????????????????? <!-- [settings.tex_size] -->? ????? <precision>2</precision>??????????????????????????????????????????????????? <!-- [0] (Number) how many numbers after comma should be shown -->? ??? </plugin>? ? </plugins>? </settings>? // amcolumn_settings.xml <?xml version="1.0" encoding="UTF-8"?> <settings> ?? <!-- chart config --> ?? <data_type>csv</data_type>???????????????????????????????????????????????????? <!-- [xml] (xml / csv) --> ?? <digits_after_decimal>2</digits_after_decimal> ?? <legend> ????? <enabled>false</enabled> ?? </legend> ?? <!-- plugin config -->?? ?? <plugins> ??? <!-- value indicator plugin is suitable for line chart,column chart & xy chart --> ??? <plugin file="/amchart/amchart/amcolumn/plugins/value_indicator.swf" position="above">????? <!-- file should be located in "path" folder. position can be "behind" or "above". "behind" means that the plugin will be loaded behind graphs --> ????? <chart_type>column</chart_type>???????????????????????????????????????????? <!-- [line] (line / column / xy) this plugin can be used with line or with column chart --> ????? <axis></axis>?????????????????????????????????????????????????????????????? <!-- [left] (left / right / x / y) if used with line chat use left or right,use x or y --> ????? <line_color>#000000</line_color>??????????????????????????????????????????? <!-- [#BBBB00] (hex color code) --> ????? <line_alpha></line_alpha>?????????????????????????????????????????????????? <!-- [100] (0 - 100) --> ????? <text_color>#000000</text_color>??????????????????????????????????????????? <!-- [settings.text_color] --> ????? <text_size>13</text_size>?????????????????????????????????????????????????? <!-- [settings.tex_size] --> ????? <precision>2</precision>??????????????????????????????????????????????????? <!-- [0] (Number) how many numbers after comma should be shown --> ??? </plugin> ? </plugins> </settings> 4 在HTML上显示 view plaincopy to clipboardprint? <body>? <!-- saved from url=(0013)about:internet -->? <!-- amcolumn script-->? <div id="flashcontent">? ? <strong>You need to upgrade your Flash Player</strong>? </div>? <mce:script type="text/javascript"><!--?? ???? ? var so = new SWFObject("/amchart/amchart/amcolumn/amcolumn.swf","amcolumn","520","380","8","#FFFFFF"); // 创建SWFObject对象?? ? so.addVariable("path","/amchart/amchart/amcolumn/"); // 暂时不是很清楚，破解时用到了这个属性。既然，例子写了，我们也写好了。?? ? so.addVariable("settings_file",encodeURIComponent("amcolumn_settings.xml")); // 配置文件?? ? so.addVariable("data_file",encodeURIComponent("amcolumn_data.txt")); // 数据文件?? ? so.addVariable("preloader_color","#000000"); // 加载时显示的颜色?? ? so.write("flashcontent"); // 在flashcontent位置写入flash插入的HTML?? // --></mce:script>? <!-- end of amcolumn script -->? </body>? <body> <!-- saved from url=(0013)about:internet --> <!-- amcolumn script--> <div id="flashcontent"> ? <strong>You need to upgrade your Flash Player</strong> </div> <mce:script type="text/javascript"><!-- ? ? var so = new SWFObject("/amchart/amchart/amcolumn/amcolumn.swf","#FFFFFF"); // 创建SWFObject对象 ? so.addVariable("path","/amchart/amchart/amcolumn/"); // 暂时不是很清楚，破解时用到了这个属性。既然，例子写了，我们也写好了。 ? so.addVariable("settings_file",encodeURIComponent("amcolumn_settings.xml")); // 配置文件 ? so.addVariable("data_file",encodeURIComponent("amcolumn_data.txt")); // 数据文件 ? so.addVariable("preloader_color","#000000"); // 加载时显示的颜色 ? so.write("flashcontent"); // 在flashcontent位置写入flash插入的HTML // --></mce:script> <!-- end of amcolumn script --> </body> 5 破解amchart 没有破解的amchart显示的时候在左上角会出现“chart by amCharts.com”链接，表示是未注册版本，非常讨厌。 原理：网上看到的。 用SWF Decompiler软件加载swf文件，在Resources下找Action中的MainMoive，代码中有一段如下： view plaincopy to clipboardprint? function checkKey(serial)?? {?? ?? var _l1 = com.amcharts.Utils.stripSymbols(serial," ");?? ?? _l1 = com.amcharts.Utils.stripSymbols(_l1,"/n");?? ?? _l1 = com.amcharts.Utils.stripSymbols(_l1,"/r");?? ?? _l1 = com.amcharts.Utils.stripSymbols(_l1,"/r/n");?? ?? arr = _l1.split("-");?? ?? if (Number(arr[2]) + Number(arr[3]) != 8645 || Number(arr[2].substr(1,1)) - Number(arr[3].substr(2,1)) != 2)? ?? {?? ?????? attachMovie("copyright_mc","copyright_mc",1001);?? ?? } // end if?? } // End of the function? function checkKey(serial) { ?? var _l1 = com.amcharts.Utils.stripSymbols(serial," "); ?? _l1 = com.amcharts.Utils.stripSymbols(_l1,"/n"); ?? _l1 = com.amcharts.Utils.stripSymbols(_l1,"/r"); ?? _l1 = com.amcharts.Utils.stripSymbols(_l1,"/r/n"); ?? arr = _l1.split("-"); ?? if (Number(arr[2]) + Number(arr[3]) != 8645 || Number(arr[2].substr(1,1)) != 2) ?? { ?????? attachMovie("copyright_mc",1001); ?? } // end if } // End of the function 这就是序列号的代码，再往下看 key_loader.loadVars(path + "amcharts_key.txt",this,"checkKey",false,"checkKey"); 破解： 在swf目录下，新建文件amcharts_key.txt。 输入序列号内容如下：0000-0000-1422-7223。 保存后测试通过！真没想到他们会采用这么简单的加密方式！ 注意：测试的时候发现一个问题，即使amcharts_key.txt正确放入SWF文件目录下，也有破解不成功的情况。 1）amcolumn,amline,ampie破解时跟so.addVariable("path","");有关系。该属性设置错误破解不成功。 2）amstock似乎无法破解！ 以上是网上贴的 下面是setting.xml文件一些特别的属性 view plaincopy to clipboardprint? <graphs>??????????????????????????????????????????????????? <!-- GRAPHS SETTINGS. These settings can also be specified in data file,as attributes of <graph>,in this case you can delete everything from <graphs> to </graphs> (including) -->? ??? <graph gid="registerall">?????????????????????????????????????????? <!-- if you are using XML data file,graph "gid" must match graph "gid" in data file -->? ?????????????????????????????????????????????????????????????? ????? <axis></axis>?????????????????????????????????????? <!-- [left] (left/ right) indicates which y axis should be used -->? ????? <title>registerall</title>????????????????????????????????? <!-- [] (graph title) -->? ????? <color>#0000FF</color>????????????????????????????????? <!-- [] 线条颜色? (hex color code) if not defined,uses colors from this array: #FF0000,#0000FF,#00FF00,#FF9900,#CC00CC,#00CCCC,#33FF00,#990000,#000066? -->? ????? <color_hover>#FF0000</color_hover>???????????????????????????? <!-- [#BBBB00] 链接颜色 (hex color code) -->? ????? <line_alpha>100</line_alpha>?????????????????????????????? <!-- [100] (0 - 100) 是否显示线条,0-100越大越清晰; 0浓度为0-->? ????? <line_width>0</line_width>????????????????????????????? <!-- [0] 线条宽度,不是长度 ..(Number) 0 for hairline -->?????????????????????????????????????? ????? <fill_alpha></fill_alpha>???????????????????????????? <!-- [0] 线条内填充 (0 - 100) if you want the chart to be area chart,use bigger than 0 value -->? ????? <fill_color></fill_color>?????????????????????????????? <!-- [grpah.color] 填充颜色渐变 (hex color code) Separate color codes with comas for gradient -->? ????? <balloon_color></balloon_color>???????????????????????? <!-- [graph color] 线条提示颜色,例:鼠标放在某个节点上,弹出提示背景颜色? (hex color code) leave empty to use the same color as graph -->? ????? <balloon_alpha>90</balloon_alpha>???????????????????????? <!-- [100] 提示背景色渐变 (0 - 100) -->???????? ????? <balloon_text_color></balloon_text_color>?????????????? <!-- [#FFFFFF] 提示文字颜色(hex color code) -->? ????? <bullet>round</bullet>?????????????????????????????????????? <!-- [] 节点显示的方式,例:square(方型),round(圆型) (square,round,square_outlined,round_outlined,filename.swf) can be used predefined bullets or loaded custom bullets. Leave empty if you don't want to have bullets at all. Outlined bullets use plot area color for outline color -->? ????????????????????????????????????????????????????????????? <!-- The chart will look for this file in amline_path folder (amline_path is set in HTML) -->? ????? <bullet_size>0</bullet_size>???????????????????????????? <!-- [6] 节点显示方式大小渐变 (Number) affects only predefined (square and round) bullets,does not change size of custom loaded bullets -->? ????? <bullet_color>#0000FF</bullet_color>???????????????????????? <!-- [graph color] 节点显示颜色? (hex color code) affects only predefined (square and round) bullets,does not change color of custom loaded bullets. Leave empty to use the same color as graph? -->? ????? <bullet_alpha>100</bullet_alpha>?????????????????????????? <!-- [graph alpha] 节点显示大小渐变,跟上面的差不多啊 (hex color code) Leave empty to use the same alpha as graph -->? ????? <hidden></hidden>?????????????????????????????????????? <!-- [false] 线条是否隐藏 (true / false) vill not be visible until you check corresponding checkbox in the legend -->? ????? <selected>true</selected>????????????????????????????? <!-- [true] (true / false) if true,balloon indicating value will be visible then roll over plot area -->? ????? <balloon_text>? ??????? <!--[CDATA[<b>{value}</b> (个)用户注册 <b>{description}</b>]]--> <!-- [<b>{value}</b><br>{description}] ({title} {value} {series} {description} {percents}) You can format any balloon text: {title} will be replaced with real title,{value} - with value and so on. You can add your own text or html code too. -->? ????? </balloon_text>?????????????????????????????????????? <!-- 提示信息:可以显示你想要的任何提示信息,前提是registerGenre.php 将值放了进来! 动态的获得数据-->? ????? <data_labels>? ???????????????????????????????????????? <!-- [] 节点处显示信息 ({title} {value} {series} {description} {percents}) Data labels can display value (and more) near your point on the plot area. -->? ????????????????????????????????????????????????????????????? <!-- to avoid overlapping,data labels,the same as bullets are not visible if there are more then hide_bullets_count data points on plot area. -->???????????????????????????????????????????????????????????????? ????? </data_labels>???? ????? <data_labels_text_color></data_labels_text_color>?????? <!-- [text_color] 节点颜色 (hex color code) -->??? ????? <data_labels_text_size>10</data_labels_text_size>?????? <!-- [text_size] 节点字体大小 (Number) -->? ????? <data_labels_position></data_labels_position>?????????? <!-- [above] 节点数量为0时如何显示 below在X轴下面;above在X轴上面 (below / above) -->?????????????? ????? <vertical_lines></vertical_lines>?????????????????????? <!-- [false] 是否显示节点垂直线 (true / false) whether to draw vertical lines or not. If you want to show vertical lines only (without the graph,set line_alpha to 0 -->? ????? <visible_in_legend></visible_in_legend>???????????????? <!-- [true] (true / false) whether to show legend entry for this graph or not -->? ??? </graph>? <graphs>??????????????????????????????????????????????????? <!-- GRAPHS SETTINGS. These settings can also be specified in data file,in this case you can delete everything from <graphs> to </graphs> (including) --> ??? <graph gid="registerall">?????????????????????????????????????????? <!-- if you are using XML data file,graph "gid" must match graph "gid" in data file --> ??????????????????????????????????????????????????????????? ????? <axis></axis>?????????????????????????????????????? <!-- [left] (left/ right) indicates which y axis should be used --> ????? <title>registerall</title>????????????????????????????????? <!-- [] (graph title) --> ????? <color>#0000FF</color>????????????????????????????????? <!-- [] 线条颜色? (hex color code) if not defined,#000066? --> ????? <color_hover>#FF0000</color_hover>???????????????????????????? <!-- [#BBBB00] 链接颜色 (hex color code) --> ????? <line_alpha>100</line_alpha>?????????????????????????????? <!-- [100] (0 - 100) 是否显示线条,0-100越大越清晰; 0浓度为0--> ????? <line_width>0</line_width>????????????????????????????? <!-- [0] 线条宽度,不是长度 ..(Number) 0 for hairline -->??????????????????????????????????? ????? <fill_alpha></fill_alpha>???????????????????????????? <!-- [0] 线条内填充 (0 - 100) if you want the chart to be area chart,use bigger than 0 value --> ????? <fill_color></fill_color>?????????????????????????????? <!-- [grpah.color] 填充颜色渐变 (hex color code) Separate color codes with comas for gradient --> ????? <balloon_color></balloon_color>???????????????????????? <!-- [graph color] 线条提示颜色,弹出提示背景颜色? (hex color code) leave empty to use the same color as graph --> ????? <balloon_alpha>90</balloon_alpha>???????????????????????? <!-- [100] 提示背景色渐变 (0 - 100) -->????? ????? <balloon_text_color></balloon_text_color>?????????????? <!-- [#FFFFFF] 提示文字颜色(hex color code) --> ????? <bullet>round</bullet>?????????????????????????????????????? <!-- [] 节点显示的方式,filename.swf) can be used predefined bullets or loaded custom bullets. Leave empty if you don't want to have bullets at all. Outlined bullets use plot area color for outline color --> ????????????????????????????????????????????????????????????? <!-- The chart will look for this file in amline_path folder (amline_path is set in HTML) --> ????? <bullet_size>0</bullet_size>???????????????????????????? <!-- [6] 节点显示方式大小渐变 (Number) affects only predefined (square and round) bullets,does not change size of custom loaded bullets --> ????? <bullet_color>#0000FF</bullet_color>???????????????????????? <!-- [graph color] 节点显示颜色? (hex color code) affects only predefined (square and round) bullets,does not change color of custom loaded bullets. Leave empty to use the same color as graph? --> ????? <bullet_alpha>100</bullet_alpha>?????????????????????????? <!-- [graph alpha] 节点显示大小渐变,跟上面的差不多啊 (hex color code) Leave empty to use the same alpha as graph --> ????? <hidden></hidden>?????????????????????????????????????? <!-- [false] 线条是否隐藏 (true / false) vill not be visible until you check corresponding checkbox in the legend --> ????? <selected>true</selected>????????????????????????????? <!-- [true] (true / false) if true,balloon indicating value will be visible then roll over plot area --> ????? <balloon_text> ??????? <!--[CDATA[<b>{value}</b> (个)用户注册 <b>{description}</b>]]--> <!-- [<b>{value}</b><br>{description}] ({title} {value} {series} {description} {percents}) You can format any balloon text: {title} will be replaced with real title,{value} - with value and so on. You can add your own text or html code too. --> ????? </balloon_text>??????????? <!-- 提示信息:可以显示你想要的任何提示信息,前提是registerGenre.php 将值放了进来! 动态的获得数据--> ????? <data_labels> ???????????????????????????????????????? <!-- [] 节点处显示信息 ({title} {value} {series} {description} {percents}) Data labels can display value (and more) near your point on the plot area. --> ????????????????????????????????????????????????????????????? <!-- to avoid overlapping,the same as bullets are not visible if there are more then hide_bullets_count data points on plot area. -->????????????????????????????????????????????????????????????? ????? </data_labels>? ????? <data_labels_text_color></data_labels_text_color>?????? <!-- [text_color] 节点颜色 (hex color code) --> ????? <data_labels_text_size>10</data_labels_text_size>?????? <!-- [text_size] 节点字体大小 (Number) --> ????? <data_labels_position></data_labels_position>?????????? <!-- [above] 节点数量为0时如何显示 below在X轴下面;above在X轴上面 (below / above) -->??????????? ????? <vertical_lines></vertical_lines>?????????????????????? <!-- [false] 是否显示节点垂直线 (true / false) whether to draw vertical lines or not. If you want to show vertical lines only (without the graph,set line_alpha to 0 --> ????? <visible_in_legend></visible_in_legend>???????????????? <!-- [true] (true / false) whether to show legend entry for this graph or not --> ??? </graph> 这是图表显示样式的设置。。。 -=================================================================== amcharts--setting.xml随记 2011-06-20 9:42 <graphs>??????????????????????????????????????????????????? <!-- GRAPHS SETTINGS. These settings can also be specified in data file,{value} - with value and so on. You can add your own text or html code too. --> ????? </balloon_text>????????????????????????????????????????? <!-- 提示信息:可以显示你想要的任何提示信息,set line_alpha to 0 --> ????? <visible_in_legend></visible_in_legend>???????????????? <!-- [true] (true / false) whether to show legend entry for this graph or not --> ??? </graph> http://hi.baidu.com/bieluanchi/blog/item/2c76b3dc0a44cf41cdbf1a05.html