jpgraph 折线图--解决中文乱码的问题(标题和图例)

在jpgraph根目录中:

如Jpgjpgraph_ttf.inc.php 中开头添加

define('CHINESE_TTF_FONT','SIMYOU.TTF');

Jpgjpgraph_legend.inc.php 中大约24行添加 修改

public $font_family=FF_CHINESE,$font_style=FS_NORMAL,$font_size=8; // old. 12

然后

 /**作图 前期准备  set_time_limit(0);*/
        $this->root_path=realpath(dirname(__FILE__).'/../../../');
        $this->root_path=str_replace('\','/',$this->root_path);
        dd($this->root_path);
        /**图1 故障停机时间折线图 */
//x轴刻度数据
$x_zuobiaos=Array
(
    [0] => 16/10
    [1] => 16/11
    [2] => 16/12
    [3] => 17/01
    [4] => 17/02
    [5] => 17/03
    [6] => 17/04
    [7] => 17/05
    [8] => 17/06
    [9] => 17/07
    [10] => 17/08
    [11] => 17/09
    [12] => 17/10
);
//折线数据
$xdata=Array
(
    '其它故障因素'=> Array
        (
           [0] => 0
            [1] => 0
            [2] => 0
            [3] => 0
            [4] => 0
            [5] => 0
            [6] => 0
            [7] => 0
            [8] => 0
            [9] => 0
            [10] => 0
            [11] => 2.90
            [12] => 0
        ),

    '工艺故障因素' => Array
        (
            [0] => 0
            [1] => 0
            [2] => 0
            [3] => 0
            [4] => 0
            [5] => 0
            [6] => 0
            [7] => 2.25
            [8] => 0
            [9] => 0
            [10] => 0
            [11] => 0
            [12] => 0
        )
)
//最大值,最小值区间
        $mimax[0]=$min-$max*0.1;
        $mimax[1]=$max*1.1;
//返回路径
        $path[]=$this->dojpgraph_zx('故障停机时间曲线图','','小时',$x_zuobiaos,$xdata,$mimax,'ReportPdf_1.png');

图例:

变量:

public $root_path;
public $iColorList = array('azure4',  'orange', 'darkgreen', 'red', 'aquamarine3', 'blue','chocolate',
 'brown', 'cadetblue3', 'chartreuse4', 'AntiqueWhite3', 'darkblue');

函数:

 //折线,支持中文
    public function dojpgraph_zx($title,$x_title,$y_title,$x_zuobiao,$xdata,$mimax,$picname=null){

        require_once($this->root_path."/Jpg/jpgraph.php");
        require_once($this->root_path."/Jpg/jpgraph_line.php");
        $x_zuobiao=array_merge(array(''),$x_zuobiao);//把原点坐标空出来
//        $data1 = array(523,634,371,278,685,587,490,256,398,545,367,577); //第一条曲线的数组

        $graph = new Graph(900,450);// 图表的长宽
        $graph->SetScale("textlin",0,$mimax[1]);//设置刻度样式  $mimax 刻度多10%
//        $graph->SetY2Scale('lin');//设置右边刻度样式 http://www.jb51.net/article/105672.htm
        $graph->SetShadow();//设置背景带阴影
        //设置图表灰度四周边距，顺序为左右上下
        $graph->img->SetMargin(60,30,30,70);
        $graph->graph_theme = null; //设置主题为null，否则value->Show(); 无效

//        $lineplot1->SetFillColor("orange"); //填充色


        //设置图表的标题字体、大小  解决中文乱码
        $graph->title->Set(iconv("UTF-8","GB2312//IGNORE",$title));   //设置图像标题
        $graph->xaxis->title->Set(iconv("UTF-8","GB2312//IGNORE",$x_title)); //设置坐标轴名称
        $graph->yaxis->title->Set(iconv("UTF-8","GB2312//IGNORE",$y_title));
//        $graph->y2axis->title->Set(iconv('utf-8', 'GB2312//IGNORE', "book B 销售金额（万元）"));//设置y轴的标题
//        $graph->y2axis->title->SetMargin(20);//设置右边的title到图的距离
        $graph->title->SetMargin(10);//设置title到图的距离
        $graph->xaxis->title->SetMargin(10);
        $graph->yaxis->title->SetMargin(10);
        //设置字体
        $graph->title->SetFont(FF_SIMSUN,FS_BOLD);
        $graph->xaxis->title->SetFont(FF_SIMSUN,FS_BOLD); //设置图表的标题字体、大小
        $graph->yaxis->title->SetFont(FF_SIMSUN,FS_BOLD);// FF_SIMSUN表示中文简体
        //折线颜色图例
        $graph->legend->SetLayout(LEGEND_HOR);
//        $graph->legend->Pos( 0.025, 0.08, "right","center" ); //图例文字框的位置 0.025，0.08 是以右上角为基准的，0.025是距左右距离，0.08是上下距离。 http://nodonkey.iteye.com/blog/761700
        $graph->legend->Pos(0.4, 0.95, 'center', 'bottom');// 图例文字框的位置 0.4，0.95 是以右上角为基准的，0.4是距左右距离，0.95是上下距离
        //数据
        //颜色图例
        $i=0;
        foreach($xdata as $k=>$v){
            $v=array_merge(array(''),$v);
            $lineplot='lineplot'.$i;
            $$lineplot=new LinePlot($v); //创建设置n条曲线对象
            $$lineplot->value->SetColor($this->iColorList[$i]); //设置线上字体颜色
            /*            $color=new ColorFactory();
                        $$lineplot->value->SetColor($color->getColor()); //设置线颜色随机*/
            $$lineplot->SetWeight(4); //线宽 加深加粗
            $$lineplot->value->Show();
//            $bt=iconv("UTF-8","gb2312",$legend[$k-1]);
//            $$lineplot->SetFont(FF_SIMSUN,FF_SIMSUN,8);
            $$lineplot->SetLegend($k);

            $graph->Add($$lineplot); //在统计图上绘制曲线
            $$lineplot->SetColor($this->iColorList[$i]); //设置统计图的颜色，一定要在添加到画布之后再设置
            $i++;
        }
//x轴坐标 自带月份 $gDateLocale=new DateLocale; $graph->xaxis->SetTickLabels($gDateLocale->GetShortMonth());
        $graph->xaxis->SetTickLabels($x_zuobiao); //x轴坐标 月份

        if($picname==null) {
            $graph->Stroke();  //生成本地图表，黙认留空，生成在当前目录，可以Stroke(“路径/文件名.png”)这样指定路径
        } else{
            $path=$this->root_path.'/Uploads/report/'.$picname;
            if(file_exists($path)){
                @unlink($path);
            }
            $graph->Stroke($path); //保存图像
            return $path;
        }
    }