以下是引用片段：
<?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];
}
}
}
?> |
