php jpgraph教程的详细介绍
首先包含进来jpgraph的类库：include("../jpgraph.php");include("../jpgraph_bar.php");include("../jpgraph_line.php");设置显示的数据数组；调用类库//设置图像的大小$graph=newGraph(400,200,"auto");$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);$graph->img->SetAngle(45);//设置图形在图像中的角度//设置背景图片的对比度，mustbebetween-1<=x<=1,(0,0)=originalimage$graph->AdjBackgroundImage(0,0);//设置投影；//$graph->SetShadow();//设置标题$graph->title->Set("testimage");//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('darkgray@0.1');$graph->legend->SetFillColor('lightblue@0.3');//设置x轴的标记$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$graph->xaxis->title->Set('Year2006');$graph->xaxis->title->SetFont(FF_FONT1,FS_BOLD);$graph->xaxis->title->SetColor('white');//设置x轴的字体和颜色$graph->xaxis->SetFont(FF_FONT1,FS_BOLD);$graph->xaxis->SetColor('yellow');//设置y轴的字体和颜色$graph->yaxis->SetFont(FF_FONT1,FS_BOLD);$graph->yaxis->SetColor('yellow');//设置是否显示格子。默认为显示；//$graph->ygrid->Show(false);//设置格子的颜色和粗细。值越小，格子越粗。$graph->ygrid->SetColor('yellow@0.5');//设置y轴更优美一些$graph->yaxis->scale->SetGrace(20);//设置图列的数据$bplot1=newBarPlot($datay1);$bplot2=newBarPlot($datay2);//设置图列的填充颜色$bplot1->SetFillColor('orange@0.4');$bplot2->SetFillColor('brown@0.4');设置值的格式$bplot1->value->SetFormat('%d');//设置图列标签$bplot1->SetLegend('Label1');$bplot2->SetLegend('Label2');//设置图列在图中的阴影$bplot1->SetShadow('black@0.4');$bplot2->SetShadow('black@0.4');//生成图列$gbarplot=newGroupBarPlot(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$p1=newLinePlot($datay);$p1->mark->SetType(MARK_FILLEDCIRCLE);$p1->mark->SetFillColor("red");$p1->mark->SetWidth(4);$p1->SetColor("blue");$p1->SetCenter();$p1->SetLegend("TriumphTiger-98");$graph->Add($p1);$p2=newLinePlot($data2y);$p2->mark->SetType(MARK_STAR);$p2->mark->SetFillColor("red");$p2->mark->SetWidth(4);$p2->SetColor("red");$p2->SetCenter();$p2->SetLegend("Newtiger-99");$graph->Add($p2);//StylecanalsobespecifiedasSetStyle([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.柱形图和饼状图举例if($tag==1){$graph=newGraph(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=newBarPlot($article_num);$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{$graph1=newPieGraph(600,400,"auto");$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);$p1=newpieplot3d($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”);本文地址：http://www.45fan.com/a/question/68323.html