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PHP数据分析之曲线图DEMO
分类:PHP  编辑:admin  日期:2016-04-29  浏览:164
 

PHP分析数据图表制作DEMO源码,功能实用以Class类封装,调用简单。

<?php

header("Content-type: image/png");
ob_clean();
//最后一次修改:2016-04-29
//一个生成矩形图,曲线图的图形分析类
//原作者:tonera
//说明:
//任何人可在任何场合自由使用这个类。但由此所发生的损害跟作者无关。
//可根据数据自适应X和Y轴大小。
//在同一个图形中可显示多个曲线图
//用户可给出生成的图的尺寸大小,数据参数。类根据数据的值来判断生成的图形的高(默认10格)和宽各分几格。
//若用户没有给出图的尺寸大小,则图形高和宽为255像素
//数据参数通过一个方法add_data($array)来多次添加,每次一个数组。
//可自设定图形边框,矩形图内线,深色边框线,浅色边框线,曲线,点的颜色。若用户没有指定,则为默认值
//set_colors方法设定不同曲线的不同色彩
//可进行图形的叠加显示:点,线,矩形
//注意:需要GD库支持
class build_graph {
    var $graphwidth=800;
    var $graphheight=300;
    var $width_num=0;                //宽分多少等分
    var $height_num=10;                //高分多少等分,默认为10
    var $height_var=0;                //高度增量(用户数据平均数)
    var $width_var=0;                //宽度增量(用户数据平均数)
    var $height_max=0;                //最大数据值
    var $array_data=array();          //用户待分析的数据的二维数组
    var $array_error=array();          //收集错误信息

    var $colorBg=array(255,255,255);    //图形背景-白色
    var $colorGrey=array(192,192,192);    //灰色画框
    var $colorBlue=array(0,0,255);       //蓝色
    var $colorRed=array(255,0,0);       //红色(点)
    var $colorDarkBlue=array(0,0,255);    //深色
    var $colorLightBlue=array(200,200,255);       //浅色

    var $array_color;                //曲线着色(存储十六进制数)
    var $image;                      //我们的图像


    //方法:接受用户数据
    function add_data($array_user_data){
       if(!is_array($array_user_data) or empty($array_user_data)){
          $this->array_error['add_data']="没有可供分析的数据";
          return false;
          exit();
       }
       $i=count($this->array_data);
       $this->array_data[$i]=$array_user_data;
    }

    //方法:定义画布宽和长
    function set_img($img_width,$img_height){
       $this->graphwidth=$img_width;
       $this->graphheight=$img_height;
    }

    //设定Y轴的增量等分,默认为10份
    function set_height_num($var_y){
       $this->height_num=$var_y;
    }

    //定义各图形各部分色彩
    function get_RGB($color){             //得到十进制色彩
    $R=($color>>16) & 0xff;
    $G=($color>>8) & 0xff;
    $B=($color) & 0xff;
    return (array($R,$G,$B));
    }
    //---------------------------------------------------------------
    #定义背景色
    function set_color_bg($c1,$c2,$c3){
       $this->colorBg=array($c1,$c2,$c3);
    }
    #定义画框色
    function set_color_Grey($c1,$c2,$c3){
       $this->colorGrey=array($c1,$c2,$c3);
    }
    #定义蓝色
    function set_color_Blue($c1,$c2,$c3){
       $this->colorBlue=array($c1,$c2,$c3);
    }
    #定义色Red
    function set_color_Red($c1,$c2,$c3){
       $this->colorRed=array($c1,$c2,$c3);
    }
    #定义深色
    function set_color_DarkBlue($c1,$c2,$c3){
       $this->colorDarkBlue=array($c1,$c2,$c3);
    }
    #定义浅色
    function set_color_LightBlue($c1,$c2,$c3){
       $this->colorLightBlue=array($c1,$c2,$c3);
    }
    //---------------------------------------------------------------

    //方法:由用户数据将画布分成若干等份宽
    //并计算出每份多少像素
    function get_width_num(){
       $this->width_num=count($this->array_data[0]);
    }
    function get_max_height(){
       //获得用户数据的最大值
       $tmpvar=array();
       foreach($this->array_data as $tmp_value){
          $tmpvar[]=max($tmp_value);
       }
       $this->height_max=max($tmpvar);
       return max($tmpvar);
    }
    function get_height_length(){
       //计算出每格的增量长度(用户数据,而不是图形的像素值)
       $max_var=$this->get_max_height();
       $max_var=round($max_var/$this->height_num);
       $first_num=substr($max_var,0,1);
       if(substr($max_var,1,1)){
          if(substr($max_var,1,1)>=5)
             $first_num+=1;
       }
       for($i=1;$i<strlen($max_var);$i++){
          $first_num.="0";
       }
       return (int)$first_num;
    }
    function get_var_wh(){          //得到高和宽的增量
       $this->get_width_num();
       //得到高度增量和宽度增量
       $this->height_var=$this->get_height_length();
       $this->width_var=round($this->graphwidth/$this->width_num);
    }

    function set_colors($str_colors){
       //用于多条曲线的不同着色,如$str_colors="ee00ff,dd0000,cccccc"
       $this->array_color=preg_split("/,/",$str_colors);
       //echo $str_colors;
       }

######################################################################################################
    function build_line($var_num){
       if(!empty($var_num)){                   //如果用户只选择显示一条曲线
          $array_tmp[0]=$this->array_data[$var_num-1];
          $this->array_data=$array_tmp;
       }

       for($j=0;$j<count($this->array_data);$j++){
          list($R,$G,$B)=$this->get_RGB(hexdec($this->array_color[$j]));
          $colorBlue=imagecolorallocate($this->image,$R,$G,$B);

          for($i=0;$i<$this->width_num-1;$i++){
             $height_pix=round(($this->array_data[$j][$i]/$this->height_max)*$this->graphheight);
             $height_next_pix=round($this->array_data[$j][$i+1]/$this->height_max*$this->graphheight);
             imageline($this->image,$this->width_var*$i,$this->graphheight-$height_pix,$this->width_var*($i+1),$this->graphheight-$height_next_pix,$colorBlue);
          }
       }
       //画点
       $colorRed=imagecolorallocate($this->image, $this->colorRed[0], $this->colorRed[1], $this->colorRed[2]);
       for($j=0;$j<count($this->array_data);$j++){
          for($i=0;$i<$this->width_num;$i++){
             $height_pix=round(($this->array_data[$j][$i]/$this->height_max)*$this->graphheight);
             imagearc($this->image,$this->width_var*$i,$this->graphheight-$height_pix,6,5,0,360,$colorRed);
             imagefilltoborder($this->image,$this->width_var*$i,$this->graphheight-$height_pix,$colorRed,$colorRed);
          }
       }
    }

######################################################################################################
    function build_rectangle($select_gra){
       if(!empty($select_gra)){                   //用户选择显示一个矩形
          $select_gra-=1;
       }
       //画矩形
       //配色
       $colorDarkBlue=imagecolorallocate($this->image, $this->colorDarkBlue[0], $this->colorDarkBlue[1], $this->colorDarkBlue[2]);
       $colorLightBlue=imagecolorallocate($this->image, $this->colorLightBlue[0], $this->colorLightBlue[1], $this->colorLightBlue[2]);

       if(empty($select_gra))
          $select_gra=0;
       for($i=0; $i<$this->width_num; $i++){
          $height_pix=round(($this->array_data[$select_gra][$i]/$this->height_max)*$this->graphheight);
          imagefilledrectangle($this->image,$this->width_var*$i,$this->graphheight-$height_pix,$this->width_var*($i+1),$this->graphheight, $colorDarkBlue);
          imagefilledrectangle($this->image,($i*$this->width_var)+1,($this->graphheight-$height_pix)+1,$this->width_var*($i+1)-5,$this->graphheight-2, $colorLightBlue);
       }
    }

######################################################################################################
    function create_cloths(){
       //创建画布
       $this->image=imagecreate($this->graphwidth+20,$this->graphheight+20);
    }
    function create_frame(){
       //创建画框
       $this->get_var_wh();
       //配色
       $colorBg=imagecolorallocate($this->image, $this->colorBg[0], $this->colorBg[1], $this->colorBg[2]);
       $colorGrey=imagecolorallocate($this->image, $this->colorGrey[0], $this->colorGrey[1], $this->colorGrey[2]);
       //创建图像周围的框
       imageline($this->image, 0, 0, 0, $this->graphheight,$colorGrey);
       imageline($this->image, 0, 0, $this->graphwidth, 0,$colorGrey);
       //imageline($this->image, ($this->graphwidth-1),0,($this->graphwidth-1),($this->graphheight-1),$colorGrey);
       imageline($this->image, 0,($this->graphheight-1),($this->graphwidth-1),($this->graphheight-1),$colorGrey);
    }
    function create_line(){
       //创建网格。
       $this->get_var_wh();
       $colorBg=imagecolorallocate($this->image, $this->colorBg[0], $this->colorBg[1], $this->colorBg[2]);
       $colorGrey=imagecolorallocate($this->image, $this->colorGrey[0], $this->colorGrey[1], $this->colorGrey[2]);
       $colorRed=imagecolorallocate($this->image, $this->colorRed[0], $this->colorRed[1], $this->colorRed[2]);
       for($i=1;$i<=$this->height_num;$i++){
          //画横线
          imageline($this->image,0,$this->graphheight-($this->height_var/$this->height_max*$this->graphheight)*$i,$this->graphwidth,$this->graphheight-($this->height_var/$this->height_max*$this->graphheight)*$i,$colorGrey);
          //标出数字
          imagestring($this->image,2,0,$this->graphheight-($this->height_var/$this->height_max*$this->graphheight)*$i,$this->height_var*$i,$colorRed);
       }
       for($i=1;$i<=$this->width_num;$i++){
          //画竖线
          imageline($this->image,$this->width_var*$i,0,$this->width_var*$i,$this->graphwidth,$colorGrey);
          //标出数字
          imagestring($this->image,2,$this->width_var*$i,$this->graphheight-15,$i,$colorRed);
       }
    }

    function build($graph,$str_var){
       //$graph是用户指定的图形种类,$str_var是生成哪个数据的图
       $this->create_cloths();          //先要有画布啊~~
       switch ($graph){
          case "line":
             $this->create_frame();          //画个框先:)
             $this->create_line();          //打上底格线
             $this->build_line($str_var);          //画曲线
             break;
          case "rectangle":
             $this->create_frame();                   //画个框先:)
             $this->build_rectangle($str_var);          //画矩形
             $this->create_line();                   //打上底格线
             break;
       }

 //输出图形并清除内存
       imagepng($this->image);
       imagedestroy($this->image);
    }

######################################################################################################

}

$gg=new build_graph();
//$d1=array(0,3,10,34,56,62,59,45,43,24,45,30,25,20,20,45,75);
$d2=array(0,80,75,65,100,56,79,70,56,78,78,78,45,54,59,64,81);
//$d3=array(0,60,50,25,12,56,45);
//$gg->add_data($d1);
$gg->add_data($d2);
//$gg->add_data($d3);
$gg->set_colors("ee00ff,dd8800,00ff00");
//set_colors
//生成曲线图
$gg->build("line",0);          //参数0表示显示所有曲线,1为显示第一条,依次类推
//生成矩形图
//$gg->build("rectangle","2");    //参数0表示显示第一个矩形,1也为显示第一条,其余依次类推
/*
//自定义图形显示,可任意图形叠加显示
       header("Content-type: image/png");
       $gg->create_cloths();          //画布
       $gg->create_frame();          //画个框先
       //$gg->build_rectangle(2);       //画矩形
       $gg->create_line();             //画线
       $gg->build_line(0);             //画曲线
       imagepng($gg->image);
       imagedestroy($gg->image);
*/
?>

 

本文标签:PHP | 数据 | 曲线图
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