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用gd图库生成横竖柱状图折线图的类
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+$this->border;
while($rulerx<($this->x-$this->border*2)){
$rulerx=$rulerx+$this->border;
//imageline($this->image,$this->border,10,$this->border+10,10,$color);
