最近写的一个gd图库用以生成横竖柱状图和折线图的类库,算是一个教学例程吧 
class imagereport{
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;//...g.
var $b;//...b.
var $transparent;//是否透明1或0
var $image;//图片对像
//-------------------
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
//-------------------
var $fontsize;//字体大小
var $fontcolor;//字体颜色
//--------参数设置函数
function setimage($sizex,$sizey,$r,$g,$b,$transparent){
$this->x=$sizex; 
$this->y=$sizey; 
$this->r=$r; 
$this->g=$g; 
$this->b=$b; 
$this->transparent=$transparent; 
} 
function setitem($arraysplit,$itemarray,$reporttype,$border){ 
$this->arraysplit=$arraysplit; 
$this->itemarray=$itemarray; 
$this->reporttype=$reporttype; 
$this->border=$border; 
} 
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+$this->border; 
while($rulerxx-$this->border*2)){ 
$rulerx=$rulerx+$this->border; 
//imageline($this->image,$this->border,10,$this->border+10,10,$color);
http://www.bkjia.com/phpjc/508716.htmlwww.bkjia.comtruehttp://www.bkjia.com/phpjc/508716.htmltecharticle最近写的一个gd图库用以生成横竖柱状图和折线图的类库,算是一个教学例程吧 class imagereport var x;//图片大小x轴 var y;//图片大小y轴 var r;//背...