php使用pchart绘制图形

Question

我正在使用以下代码绘制图表，但没有成功：

<?php
$cwd = getcwd();
include($cwd."\pChart\class\pData.class.php");
include($cwd."\pChart\class\pDraw.class.php");
include($cwd."\pChart\class\pImage.class.php");
include($cwd."\pChart\class\pChart.class.php");

// Dataset definition
$DataSet = new pData;
$DataSet->AddPoint(array(1,4,3,2,3,3,2,1,0,7,4,3,2,3,3,5,1,0,7));
$DataSet->AddSerie();
$DataSet->SetSerieName("Sample data","Serie1");

// Initialise the graph
$Test = new pChart(700,230);
$Test->setFontProperties("Fonts/tahoma.ttf",10);
$Test->setGraphArea(40,30,680,200);
$Test->drawGraphArea(252,252,252);
$Test->drawScale($DataSet->GetData(),$DataSet->GetDataDescription(),SCALE_NORMAL,150,150,150,TRUE,0,2);
$Test->drawGrid(4,TRUE,230,230,230,255);

// Draw the line graph
$Test->drawLineGraph($DataSet->GetData(),$DataSet->GetDataDescription());
$Test->drawPlotGraph($DataSet->GetData(),$DataSet->GetDataDescription(),3,2,255,255,255);

// Finish the graph
$Test->setFontProperties("Fonts/tahoma.ttf",8);
$Test->drawLegend(45,35,$DataSet->GetDataDescription(),255,255,255);
$Test->setFontProperties("Fonts/tahoma.ttf",10);
$Test->drawTitle(60,22,"My pretty graph",50,50,50,585);
$Test->Render("Naked.png");  
?>

与http://pchart.sourceforge.net/documentation.php 相同；任何帮助表示赞赏。谢谢。

Answer 1

自定义绘图图表

从 1.27b 版开始，可以将图片（仅支持 GIF 文件）关联到一个数据系列。这张图片将在绘制绘图图表时替换气泡。首先调用 pData 类的 SetSerieSymbol 函数将一张图片关联到一个系列。使用 drawTextBox 函数将图表的标题写在图表区域上，将透明度系数设置为 30%

运行此脚本将在当前directory 中创建一个example22.png 文件。

输出：

<?php  
 // Standard inclusions  
 include("pChart/pData.class");  
 include("pChart/pChart.class");  

 // Dataset definition  
 $DataSet = new pData;  
 $DataSet->AddPoint(array(60,70,90,110,100,90),"Serie1");  
 $DataSet->AddPoint(array(40,50,60,80,70,60),"Serie2");  
 $DataSet->AddPoint(array("Jan","Feb","Mar","Apr","May","Jun"),"Serie3");  
 $DataSet->AddSerie("Serie1");  
 $DataSet->AddSerie("Serie2");  
 $DataSet->SetAbsciseLabelSerie("Serie3");  
 $DataSet->SetSerieName("Company A","Serie1");  
 $DataSet->SetSerieName("Company B","Serie2");  
 $DataSet->SetYAxisName("Product sales");  
 $DataSet->SetYAxisUnit("k");  
 $DataSet->SetSerieSymbol("Serie1","Sample/Point_Asterisk.gif");  
 $DataSet->SetSerieSymbol("Serie2","Sample/Point_Cd.gif");  

 // Initialise the graph     
 $Test = new pChart(700,230);  
 $Test->setFontProperties("Fonts/tahoma.ttf",8);  
 $Test->setGraphArea(65,30,650,200);  
 $Test->drawFilledRoundedRectangle(7,7,693,223,5,240,240,240);  
 $Test->drawRoundedRectangle(5,5,695,225,5,230,230,230);  
 $Test->drawGraphArea(255,255,255,TRUE);  
 $Test->drawScale($DataSet->GetData(),$DataSet->GetDataDescription(),SCALE_NORMAL,150,150,150,TRUE,0,2,TRUE);  
 $Test->drawGrid(4,TRUE,230,230,230,50);  

 // Draw the title  
 $Test->setFontProperties("Fonts/pf_arma_five.ttf",6);  
 $Title = "Comparative product sales for company A & B  ";  
 $Test->drawTextBox(65,30,650,45,$Title,0,255,255,255,ALIGN_RIGHT,TRUE,0,0,0,30);  

 // Draw the line graph  
 $Test->drawLineGraph($DataSet->GetData(),$DataSet->GetDataDescription());  
 $Test->drawPlotGraph($DataSet->GetData(),$DataSet->GetDataDescription(),3,2,255,255,255);  

 // Draw the legend  
 $Test->setFontProperties("Fonts/tahoma.ttf",8);  
 $Test->drawLegend(80,60,$DataSet->GetDataDescription(),255,255,255);  

 // Render the chart  
 $Test->Render("example22.png");  
?>