php gd 库绘图 正态分布
<?php
class Draw{
private $im,$stu=FALSE; //
protected $sets = array ( //可设置参数
"size" => array ( //图像大小
"width" => 900,
"height" => 700
),
"position" => array ( //圆点位置
"x" =>50,
"y" =>50
),
"lengths" => array ( //x,y轴长
"x" => 800,
"y" => 600
),
"avr" => array ( //x,y 轴刻度数量
"x" =>20,
"y" =>10
),
"max" => array ( //x,y 最大值
"x" =>10000,
"y" =>1000
),
"width" => 1, //柱状图宽
"color" => array ( //x,y 轴刻度数量
"shapcolor" =>array (0,0,0), //柱形图颜色
"xline" =>array (0,0,0), //x轴颜色
"xlineK" =>array (0,0,0), //x轴标记
"xlineW" =>array (0,0,0), //x轴文字
"yline" =>array (0,0,0), //y轴颜色
"ylineK" =>array (0,0,0), //y轴标记
"ylineW" =>array (0,0,0), //x轴文字
"background" =>array (255,255,255) //背景色
),
"words" => array ( //文字与xy轴距离
"down" =>40,
"left" =>40
),
) ;
protected function drawArr($arr){ //取数组直画柱形图
if ($this->stu==FALSE){
$this->prepare();
}
$shape1 = $this->sets['color']['shapcolor'];
$shape = imagecolorallocate($this->im,$shape1[0],$shape1[1],$shape1[2]);
$x = $this->sets['position']['x'];
$y = $this->sets['size']['height'] - $this->sets['position']['y'];
$h = $this->sets['max']['y']/$this->sets['lengths']['y'];
$counts = count($arr);
$xlineW1 = $this->sets['color']['xlineW'];
$xlineW = imagecolorallocate($this->im,$xlineW1[0],$xlineW1[1],$xlineW1[2]);
for ($i=0;$i<$counts;$i++){ //循环绘画出柱状图
$x1 = $arr[$i][0]+$x;
if(($arr[$i][1]/$h)<=$this->sets['lengths']['y']){
imagefilledrectangle($this->im,$x1,$y,($x1+$this->sets['width']),($y-$arr[$i][1]/$h),$shape);
}
else {
$arr1 = $this->sets['lengths']['y'];
imagefilledrectangle($this->im,$x1,$y,($x1+$this->sets['width']),($y-$arr1),$shape);
// imagestring($this->im,2,$x1,$y-$num,$arr[$i][1],$ylineW); //越界写上值
imagestringup($this->im,2,$x1,($y-$arr1),$arr[$i][1],$xlineW); //数值
}
}
}
protected function done($address,$name){ //输出
imagepng($this->im,$address."/".$name.".png");
imagedestroy($this->im);
return $address."/".$name.".png";
}
private function prepare(){ //绘图准备
$x = $this->sets['position']['x'];
$y = $this->sets['size']['height']-$this->sets['position']['y'];
$this->im = imagecreate($this->sets['size']['width'],$this->sets['size']['height']);
$black1 = $this->sets['color']['background'];
$black = imagecolorallocate($this->im,$black1[0],$black1[1],$black1[2]);
$xline1 = $shape1 = $this->sets['color']['xline'];
$xline = imagecolorallocate($this->im, $xline1[0],$xline1[1],$xline1[2]);
$yline1 = $shape1 = $this->sets['color']['yline'];
$yline = imagecolorallocate($this->im,$yline1[0],$yline1[1],$yline1[2]);
$yellow = imagecolorallocate($this->im,255,255,0);
imageline($this->im,$x,$y,($x+$this->sets['lengths']['x']),$y,$xline); //画x轴
imageline($this->im,$x,$y,$x,($y-$this->sets['lengths']['y']),$yline); //画y轴
$this->drawY();
$this->drawX();
$this->stu=TRUE;
}
private function drawY(){ //循环画y轴刻度
$kedu = (int)($this->sets['lengths']['y']/$this->sets['avr']['y']);
$kedu1 = (int)($this->sets['max']['y']/$this->sets['avr']['y']);
$ylineW1 = $this->sets['color']['ylineW'];
$ylineW = imagecolorallocate($this->im,$ylineW1[0],$ylineW1[1],$ylineW1[2]);
$ylineK1 = $this->sets['color']['ylineK'];
$ylineK = imagecolorallocate($this->im, $ylineK1[0],$ylineK1[1],$ylineK1[2]);
$x = $this->sets['position']['x'];
$x1 = $this->sets['position']['x']-$this->sets['words']['left'];
$y = $this->sets['size']['height']-$this->sets['position']['y'];
for ($i=0;$i <= $this->sets['avr']['y'];$i++) {
$num =$i*$kedu;
imagestring($this->im,2,$x1,$y-$num,$kedu1*$i,$ylineW); //数值
imageline($this->im,$x+10,$y-$num,$x,$y-$num,$ylineK); //画标号
}
}
private function drawX(){ //循环画x轴刻度
$kedu = (int)($this->sets['lengths']['x']/$this->sets['avr']['x']);
$kedu1 = (int)($this->sets['max']['x']/$this->sets['avr']['x']);
$xlineW1 = $this->sets['color']['xlineW'];
$xlineW = imagecolorallocate($this->im,$xlineW1[0],$xlineW1[1],$xlineW1[2]);
$xlineK1 = $this->sets['color']['xlineK'];
$xlineK = imagecolorallocate($this->im, $xlineK1[0],$xlineK1[1],$xlineK1[2]);
$x = $this->sets['position']['x'];
$y = $this->sets['size']['height']- $this->sets['position']['y'];
$y1 = $y + $this->sets['words']['down'];
for ($i=1;$i <= $this->sets['avr']['x'];$i++) {
$num =$i*$kedu;
imagestringup($this->im,2,$num+$x,$y1,$kedu1*$i,$xlineW); //数值
imageline($this->im,$x+$num,$y-10,$x+$num,$y,$xlineK); //画标号
}
}
}
?>
<?php
include 'Draw.php';
class Idraw extends Draw{
private $arr = array ();
private $arr1 = array ();
private $arrT = array ();
function putIn($arr){
$counts = count($arr);
$avr = $this->sets['max']['x']/($this->sets['lengths']['x']/$this->sets['width']);
for ($i=0;$i < $counts;$i++){
$mod = (int)($arr[$i][0]/$avr);
if(!in_array($mod, $this->arr)){
array_push($this->arr, $mod);
array_push($this->arr1, $arr[$i][1]);
}
else {
$key = array_search($mod,$this->arr);
$this->arr1[$key] = ($this->arr1[$key]+$arr[$i][1]);
}
}
//echo $this->arr1[0];
}
function getOut($address, $name){
$this->arrT();
$this->drawArr($this->arrT);
return $this->done($address, $name);
}
private function arrT(){
$counts = count($this->arr);
for ($i=0;$i < $counts;$i++){
$arr = array ($this->arr[$i],$this->arr1[$i]);
array_push($this->arrT, $arr);
}
}
}
测试用代码：
<?php
include 'Idraw.php';
$arr = array (
array(130,100),
array(131,100),
array(465,105),
array(9997,200),
array(5000,600),
array(7000,200),
array(6000,600),
array(8000,400),
);
$arr1 = array (
array(130,100),
array(8001,900),
array(8500,1800),
);
$draw1 = new Idraw();
$draw1->putIn($arr);
$draw1->putIn($arr1);
$draw1->getOut("image","yes1");
echo "<img src='image/yes1.png'/>";
///home/m/Dev/cvs/ImRoBot5/spider2/newshive/admin
?>
