[转]一生成柱状图、横柱图、折线图的类

//在网上搜索到次类，使用之后，却是觉得强大，稍微修饰代码后贴上，供日后参考。

<?php
/**
* 文件：cal_image.class.php
* 功能：产生柱状、折线图、横柱图类
* 作者：yemaosheng.com
*/

Class ImageReport
{
/* 图片数属性 */
var $X;//图片大小X轴
var $Y;//图片大小Y轴
var $R;//背影色R值
var $G;//背影色G值
var $B;//背影色B值
var $TRANSPARENT;//是否透明1或0
var $IMAGE;//图片对像
/* 附加属性 */
var $ARRAYSPLIT;//指定用于分隔数值的符号
var $ITEMARRAY;//数值
var $REPORTTYPE;//图表类型,1为竖柱形2为横柱形3为折线形
var $BORDER;//距离
/* 字体属性*/
var $FONTSIZE;//字体大小
var $FONTCOLOR;//字体颜色

/* 设置图片 */
function setImage($SizeX,$SizeY,$R,$G,$B,$Transparent)
{
$this->X=$SizeX;
$this->Y=$SizeY;
$this->R=$R;
$this->G=$G;
$this->B=$B;
$this->TRANSPARENT=$Transparent;
}

/* 设置获取数字 */
function setItem($ArraySplit,$ItemArray,$ReportType,$Border)
{
$this->ARRAYSPLIT=$ArraySplit;
$this->ITEMARRAY=$ItemArray;
$this->REPORTTYPE=$ReportType;
$this->BORDER=$Border;
}

/* 设置字体 */
function setFont($FontSize)
{
$this->FONTSIZE=$FontSize;
}

/* 主体 */
function PrintReport()
{
Header( "Content-type: image/gif");
//建立画布大小
$this->IMAGE=ImageCreate($this->X,$this->Y);
//设定画布背景色
$background=ImageColorAllocate($this->IMAGE,$this->R,$this->G,$this->B);
if($this->TRANSPARENT=="1")
{
//背影透明
Imagecolortransparent($this->IMAGE,$background);
}
else
{
//如不要透明时可填充背景色
ImageFilledRectangle($this->IMAGE,0,0,$this->X,$this->Y,$background);
}
//参数字体文小及颜色
$this->FONTCOLOR=ImageColorAllocate($this->IMAGE,255-$this->R,255-$this->G,255-$this->B);
Switch ($this->REPORTTYPE)
{
case "0":
break;
case "1":
$this->imageColumnS();
break;
case "2":
$this->imageColumnH();
break;
case "3":
$this->imageLine();
break;
}
$this->printXY();
$this->printAll();
}

/* 打印XY坐标轴 */
function printXY()
{
//画XY坐标轴*/
$color=ImageColorAllocate($this->IMAGE,255-$this->R,255-$this->G,255-$this->B);
$xx=$this->X/10;
$yy=$this->Y-$this->Y/10;
ImageLine($this->IMAGE,$this->BORDER,$this->BORDER,$this->BORDER,$this->Y-$this->BORDER,$color);//X轴
ImageLine($this->IMAGE,$this->BORDER,$this->Y-$this->BORDER,$this->X-$this->BORDER,$this->Y-$this->BORDER,$color);//y轴
//Y轴上刻度
$rulerY=$this->Y-$this->BORDER;
while($rulerY>$this->BORDER*2)
{
$rulerY=$rulerY-$this->BORDER;
ImageLine($this->IMAGE,$this->BORDER,$rulerY,$this->BORDER-2,$rulerY,$color);
}
//X轴上刻度
$rulerX=$rulerX+$this->BORDER;
while($rulerX<($this->X-$this->BORDER*2))
{
$rulerX=$rulerX+$this->BORDER;
//ImageLine($this->IMAGE,$this->BORDER,10,$this->BORDER+10,10,$color);
ImageLine($this->IMAGE,$rulerX,$this->Y-$this->BORDER,$rulerX,$this->Y-$this->BORDER+2,$color);
}
}

/* 竖柱形图 */
function imageColumnS()
{
$item_array=Split($this->ARRAYSPLIT,$this->ITEMARRAY);
$num=Count($item_array);
$item_max=0;
for ($i=0;$i<$num;$i++)
{
$item_max=Max($item_max,$item_array[$i]);
}
$xx=$this->BORDER*2;
//画柱形图
for ($i=0;$i<$num;$i++){
srand((double)microtime()*1000000);
if($this->R!=255 && $this->G!=255 && $this->B!=255)
{
$R=Rand($this->R,200);
$G=Rand($this->G,200);
$B=Rand($this->B,200);
}
else
{
$R=Rand(50,200);
$G=Rand(50,200);
$B=Rand(50,200);
}
$color=ImageColorAllocate($this->IMAGE,$R,$G,$B);
//柱形高度
$height=($this->Y-$this->BORDER)-($this->Y-$this->BORDER*2)*($item_array[$i]/$item_max);
ImageFilledRectangle($this->IMAGE,$xx,$height,$xx+$this->BORDER,$this->Y-$this->BORDER,$color);
ImageString($this->IMAGE,$this->FONTSIZE,$xx,$height-$this->BORDER,$item_array[$i],$this->FONTCOLOR);
//用于间隔
$xx=$xx+$this->BORDER*2;
}
}

/* 横柱形图 */
function imageColumnH()
{
$item_array=Split($this->ARRAYSPLIT,$this->ITEMARRAY);
$num=Count($item_array);
$item_max=0;
for ($i=0;$i<$num;$i++)
{
$item_max=Max($item_max,$item_array[$i]);
}
$yy=$this->Y-$this->BORDER*2;
//画柱形图
for ($i=0;$i<$num;$i++)
{
srand((double)microtime()*1000000);
if($this->R!=255 && $this->G!=255 && $this->B!=255)
{
$R=Rand($this->R,200);
$G=Rand($this->G,200);
$B=Rand($this->B,200);
}
else
{
$R=Rand(50,200);
$G=Rand(50,200);
$B=Rand(50,200);
}
$color=ImageColorAllocate($this->IMAGE,$R,$G,$B);
//柱形长度
$leight=($this->X-$this->BORDER*2)*($item_array[$i]/$item_max);
ImageFilledRectangle($this->IMAGE,$this->BORDER,$yy-$this->BORDER,$leight,$yy,$color);
ImageString($this->IMAGE,$this->FONTSIZE,$leight+2,$yy-$this->BORDER,$item_array[$i],$this->FONTCOLOR);
//用于间隔
$yy=$yy-$this->BORDER*2;
}
}

/* 折线图 */
function imageLine()
{
$item_array=Split($this->ARRAYSPLIT,$this->ITEMARRAY);
$num=Count($item_array);
$item_max=0;
for ($i=0;$i<$num;$i++)
{
$item_max=Max($item_max,$item_array[$i]);
}
//$xx=$this->BORDER;
//画柱形图
for ($i=0;$i<$num;$i++)
{
srand((double)microtime()*1000000);
if($this->R!=255 && $this->G!=255 && $this->B!=255)
{
$R=Rand($this->R,200);
$G=Rand($this->G,200);
$B=Rand($this->B,200);
}
else
{
$R=Rand(50,200);
$G=Rand(50,200);
$B=Rand(50,200);
}
$color=ImageColorAllocate($this->IMAGE,$R,$G,$B);
//柱形高度
$height_now=($this->Y-$this->BORDER)-($this->Y-$this->BORDER*2)*($item_array[$i]/$item_max);
if($i!="0")
{
ImageLine($this->IMAGE,$xx,$height_next,$xx+$this->BORDER,$height_now,$color);
}
ImageString($this->IMAGE,$this->FONTSIZE,$xx+$this->BORDER,$height_now-$this->BORDER/2,$item_array[$i],$this->FONTCOLOR);
$height_next=$height_now;
//用于间隔
$xx=$xx+$this->BORDER;
}
}

/* 完成打印图形 */
function printAll()
{
ImageGIF($this->IMAGE);
ImageDestroy($this->IMAGE);
}

/* 调试函数 */
function debug()
{
echo "X:".$this->X."<br>Y:".$this->Y;
echo "<br>BORDER:".$this->BORDER;
$item_array=split($this->ARRAYSPLIT,$this->ITEMARRAY);
$num=Count($item_array);
echo "<br>数值个数:".$num."<br>数值:";
for ($i=0;$i<$num;$i++)
{
echo "<br>".$item_array[$i];
}
}
}
?>

/* 使用实例代码 */

<?
//实例化对象
$report = new ImageReport();

//参数(长,宽,背影色R,G,B,是否透明1或0)
$report->setImage(2000, 300, 255, 255, 255, 1);

//数值,用指定符号隔开
$temparray="50,25,100,250,180,200,2150,220,200,150,50,25,100,250,180,200,150,220,200,150";

//参数(分隔数值的指定符号,数值变量,样式1为竖柱图2为横柱图3为折线图,距离)
$report->setItem(',',$temparray,3,20);

//字体大小1-10
$report->setFont(1);

//输出图片
$report->PrintReport();

//调式
//$report->debug();
?>