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);

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http://knowsky.com

function printAll(){

ImageGIF($this->IMAGE);

ImageDestroy($this->IMAGE);

}

//--------------调试

function debug(){

echo "X:".$this->X."

Y:".$this->Y;

echo "

BORDER:".$this->BORDER;

$item_array=split($this->ARRAYSPLIT,$this->ITEMARRAY);

$num=Count($item_array);

echo "

数值个数:".$num."

数值:";

for ($i=0;$i<$num;$i++){

echo "

".$item_array[$i];

}

}

}

$report=new ImageReport;

$report->setImage(600,300,255,255,255,1);//参数(长,宽,背影色R,G,B,是否透明1或0)

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

$report->setItem(',',$

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