Detailed explanation of php graphics jpgraph operation

This article mainly introduces the operation of php graphics jpgraph, and analyzes the relevant operation skills of php based on the jpgraph graphics library to implement graphics drawing based on specific examples. Friends in need can refer to it

The details are as follows:

<?php
include ("src/jpgraph.php");
include("src/jpgraph_bar.php");
include ("src/jpgraph_line.php");
//设置显示的数据数组；
//调用类库
//设置图像的大小
$graph = new Graph(400,200,"auto");
$graph->SetScale("textlin");
//设置图形的边距
$graph->img->SetMargin(40,180,40,40);
//设置图形的背景图片，填充方式有：BGIMG_FILLPLOT, BGIMG_FILLFRAME, BGIMG_COPY
$graph->SetBackgroundImage("abc.jpg",BGIMG_FILLPLOT);
$graph->img->SetAngle(45); //设置图形在图像中的角度
//设置背景图片的对比度，must be between -1 <= x <= 1, (0,0)=original image
$graph->AdjBackgroundImage(0,0);
//设置投影；
//$graph->SetShadow();
//设置标题
$graph->title->Set("test image");
//设置标题字体样式
$graph->title->SetFont(FF_FONT1,FS_BOLD);
//设置标题的边距
$graph->title->SetMargin(3);
//设置图列的位置
$graph->legend->Pos(0.05,0.5,"right","center");
//设置图列的投影，颜色
$graph->legend->SetShadow(&#39;darkgray@0.1&#39;);
$graph->legend->SetFillColor(&#39;lightblue@0.3&#39;);
//设置x轴的标记
$graph->xaxis->SetTickLabels($label_x);
//设置X轴的显示值的角度;
$graph->xaxis->SetLabelAngle(30);
//设置x轴标题和字体颜色
$graph->xaxis->title->Set(&#39;Year 2006&#39;);
$graph->xaxis->title->SetFont(FF_FONT1,FS_BOLD);
$graph->xaxis->title->SetColor(&#39;white&#39;);
//设置x轴的字体和颜色
$graph->xaxis->SetFont(FF_FONT1,FS_BOLD);
$graph->xaxis->SetColor(&#39;yellow&#39;);
//设置y轴的字体和颜色
$graph->yaxis->SetFont(FF_FONT1,FS_BOLD);
$graph->yaxis->SetColor(&#39;yellow&#39;);
//设置是否显示格子。默认为显示；
//$graph->ygrid->Show(false);
//设置格子的颜色和粗细。值越小，格子越粗。
$graph->ygrid->SetColor(&#39;yellow@0.5&#39;);
//设置y轴更优美一些
$graph->yaxis->scale->SetGrace(20);
//设置图列的数据
$bplot1 = new BarPlot($datay1);
$bplot2 = new BarPlot($datay2);
//设置图列的填充颜色
$bplot1->SetFillColor(&#39;orange@0.4&#39;);
$bplot2->SetFillColor(&#39;brown@0.4&#39;);
//设置值的格式
$bplot1->value->SetFormat(&#39;%d&#39;);
//设置图列标签
$bplot1->SetLegend(&#39;Label 1&#39;);
$bplot2->SetLegend(&#39;Label 2&#39;);
//设置图列在图中的阴影
$bplot1->SetShadow(&#39;black@0.4&#39;);
$bplot2->SetShadow(&#39;black@0.4&#39;);
//生成图列
$gbarplot = new GroupBarPlot(array($bplot1,$bplot2));
$gbarplot->SetWidth(0.9);
$graph->Add($gbarplot);
//生成图形
$graph->Stroke();
//上面所说的时在生成柱形图，当生成线性图时用下面的方法
$p1 = new LinePlot($datay);
$p1->mark->SetType(MARK_FILLEDCIRCLE);
$p1->mark->SetFillColor("red");
$p1->mark->SetWidth(4);
$p1->SetColor("blue");
$p1->SetCenter();
$p1->SetLegend("Triumph Tiger -98");
$graph->Add($p1);
$p2 = new LinePlot($data2y);
$p2->mark->SetType(MARK_STAR);
$p2->mark->SetFillColor("red");
$p2->mark->SetWidth(4);
$p2->SetColor("red");
$p2->SetCenter();
$p2->SetLegend("New tiger -99");
$graph->Add($p2);
// Style can also be specified as SetStyle([1|2|3|4]) or
// SetStyle("solid"|"dotted"|"dashed"|"lobgdashed")
$lineplot->SetStyle("dashed");//设置线的样式
$graph->yaxis->scale->SetGrace(20); //设置y轴更优美一些
?>

2. Examples of column charts and pie charts

if($tag == 1)
{
$graph = new Graph(600,400,"auto");
$graph->SetScale("textlin");
$graph->setMarginColor('lightblue');
$graph->SetShadow();
$graph->setMargin(30,100,30,60);
//设置标题;
$graph->title->set("文章分类汇总");
$graph->title->SetMargin(3);
$graph->title->setfont(FF_SIMSUN,FS_BOLD);
$graph->title->setcolor('black@0.5');
$graph->yaxis->title->SetFont(FF_SIMSUN,FS_BOLD);
$graph->xaxis->title->SetFont(FF_SIMSUN,FS_BOLD);
$graph->xaxis->SetFont(FF_SIMSUN,FS_NORMAL);
$graph->xaxis->SetColor('darkblue','black');
$graph->xaxis->SetTickLabels($name);
$graph->xaxis->SetLabelAngle(30);
$bplot = new BarPlot($article_num);
$bplot->SetFillColor("orange");
$bplot->value->SetFormat('%d');
$bplot->SetShadow('darkgray');
$bplot->value->show();
$graph->legend->SetFont(FF_SIMSUN,FS_BOLD);
$bplot->SetLegend("文章数");
$graph->Add($bplot);
$graph->Stroke();
}
else
{
$graph1 = new PieGraph(600,400,"auto");
$graph1->SetScale("textlin");
$graph1->SetShadow();
$graph1->title->setFont(FF_SIMSUN,FS_BOLD);
$graph1->title->set("用户文章饼形图");
$graph1->setMargin(30,100,30,60);
$p1 = new pieplot3d($article_num);
$p1->setAngle(80);
$p1->setsize(0.5);
$p1->setShadow();
$p1->ExplodeSlice(2);
$p1->SetCenter(0.4);
$graph1->legend->SetFont(FF_SIMSUN,FS_NORMAL);
$graph1->legend->setshadow();
$p1->SetLegends($name);
$graph1->Add($p1);
$graph1->Stroke();
}
//生成本地图片
$graph->Stroke("路径/文件名.png");

The above is the entire content of this article, I hope it will be helpful to everyone's study.

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