php生成曲線圖程序

2024-09-04 11:44:26

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<?php

/*******************用法*************************

    $gg=new build_graph();



    $d1=array(0,62,25,20,20,100,99);  //曲線一

//$d1=array('15'=>5,'16'=>8,'17'=>7,'18'=>9,'19'=>10,'20'=>15,'21'=>9); 改成這個形式啦

    $d2=array(0,80,75,65,100,56,79);  //曲線二

    $d3=array(0,60,50,25,12,56,45);   //曲線三一下可以繼續以此類推



    $gg->add_data($d1);

    $gg->add_data($d2);

    $gg->add_data($d3);



    $gg->set_colors("ee00ff,dd8800,00ff00"); //對應曲線的顏色



    //生成曲線圖

    $gg->build("line",0);          //參數0表示顯示所有曲線，1為顯示第一條，依次類推



    //生成矩形圖

    //$gg->build("rectangle","2");    //參數0表示顯示第一個矩形，1也為顯示第一條，其余依次類推



///////////////////////////////////////////////////////////

    //自定義圖形顯示，可任意圖形疊加顯示

       header("Content-type: image/png");

       $gg->create_cloths();          //畫布

       $gg->create_frame();          //畫個框先

       //$gg->build_rectangle(2);       //畫矩形

       $gg->create_line();             //畫線

       $gg->build_line(0);             //畫曲線

       imagepng($gg->image);

       imagedestroy($gg->image);

*/

class build_graph {

    var $graphwidth=300;

    var $graphheight=300;

    var $width_num=0;                //寬分多少等分

    var $height_num=10;                //高分多少等分，默認為10

    var $height_var=0;                //高度增量（用戶數據平均數）

    var $width_var=0;                //寬度增量（用戶數據平均數）

    var $height_max=0;                //最大數據值

    var $array_data=array();          //用戶待分析的數據的二維數組

    var $array_error=array();          //收集錯誤信息

    var $colorBg=array(255,255,255);    //圖形背景-白色

    var $colorGrey=array(192,192,192);    //灰色畫框

    var $colorBlue=array(0,0,255);       //藍色

    var $colorRed=array(255,0,0);       //紅色（點）

    var $colorDarkBlue=array(0,0,255);    //深色

    var $colorLightBlue=array(200,200,255);       //淺色

    var $array_color;                //曲線著色（存儲十六進制數）

    var $image;                      //我們的圖像

    //方法：接受用戶數據

    function add_data($array_user_data)

    {

       if(!is_array($array_user_data) or emptyempty($array_user_data))

       {

          $this->array_error['add_data']="沒有可供分析的數據";

          return false;

          exit();

       }



       $i=count($this->array_data);



       $this->array_data[$i]=$array_user_data;



    }

    //方法：定義畫布寬和長

    function set_img($img_width,$img_height){

       $this->graphwidth=$img_width;

       $this->graphheight=$img_height;

    }

    //設定Y軸的增量等分，默認為10份

    function set_height_num($var_y){

       $this->height_num=$var_y;

    }

    //定義各圖形各部分色彩

    function get_RGB($color){             //得到十進制色彩

    $R=($color>>16) & 0xff;

    $G=($color>>8) & 0xff;

    $B=($color) & 0xff;

    return (array($R,$G,$B));

    }

    //---------------------------------------------------------------

    #定義背景色

    function set_color_bg($c1,$c2,$c3){

       $this->colorBg=array($c1,$c2,$c3);

    }

    #定義畫框色

    function set_color_Grey($c1,$c2,$c3){

       $this->colorGrey=array($c1,$c2,$c3);

    }

    #定義藍色

    function set_color_Blue($c1,$c2,$c3){

       $this->colorBlue=array($c1,$c2,$c3);

    }

    #定義色Red

    function set_color_Red($c1,$c2,$c3){

       $this->colorRed=array($c1,$c2,$c3);

    }

    #定義深色

    function set_color_DarkBlue($c1,$c2,$c3){

       $this->colorDarkBlue=array($c1,$c2,$c3);

    }

    #定義淺色

    function set_color_LightBlue($c1,$c2,$c3){

       $this->colorLightBlue=array($c1,$c2,$c3);

    }

    //---------------------------------------------------------------

    //方法:由用戶數據將畫布分成若干等份寬

    //并計算出每份多少像素

    function get_width_num(){

       $this->width_num=count($this->array_data[0]);

    }



    function get_max_height(){

       //獲得用戶數據的最大值

       $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(){

       //計算出每格的增量長度(用戶數據，而不是圖形的像素值)

       $max_var=$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()  //得到高和寬的增量

    {

       $this->get_width_num();

       //得到高度增量和寬度增量

       $this->height_var=$this->get_height_length();



       $this->width_var=round($this->graphwidth/$this->width_num);

    }

    function set_colors($str_colors){

       //用于多條曲線的不同著色，如$str_colors="ee00ff,dd0000,cccccc"

       $this->array_color=split(",",$str_colors);

    }

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

    function build_line($var_num)

    {

       if(!emptyempty($var_num))

       {                   //如果用戶只選擇顯示一條曲線

          $array_tmp[0]=$this->array_data[$var_num-1];

          $this->array_data=$array_tmp;

       }



        //畫線



       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);



            $i=0;

              foreach($this->array_data[$j] as $keys=>$values)

            {

                $height_next_pix[]=round($this->array_data[$j][$keys]/$this->height_max*$this->graphheight);

            }



            foreach($this->array_data[$j] as $key=>$value)

            {

                $height_pix=round(($this->array_data[$j][$key]/$this->height_max)*$this->graphheight);



                if($i!=count($this->array_data[$j])-1)

                {

                    imageline($this->image,$this->width_var*$i,$this->graphheight-$height_pix,$this->width_var*($i+1),$this->graphheight-$height_next_pix[$i+1],$colorBlue);

                }



                $i++;

            }



        //print_r($height_next_pix);

        // exit;

         /*

          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);

          }*/

       }





       //畫點



       $colorRed=imagecolorallocate($this->image, $this->colorRed[0], $this->colorRed[1], $this->colorRed[2]);

       for($j=0;$j<count($this->array_data);$j++)

       {

               $i=0;

            foreach($this->array_data[$j] as $key=>$value)

            {

                 $height_pix=round(($this->array_data[$j][$key]/$this->height_max)*$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);

                 $i++;

            }



        /*

          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(!emptyempty($select_gra)){                   //用戶選擇顯示一個矩形

          $select_gra-=1;

       }

       //畫矩形

       //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(emptyempty($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(){

       //創建畫布

       $this->image=imagecreate($this->graphwidth+20,$this->graphheight+20);

    }

    function create_frame(){

       //創建畫框

       $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]);

       //創建圖像周圍的框

       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()

    {//開源代碼Vevb.com

       //創建網格。

       $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++)

       {

          //畫橫線

          $y1=($this->graphheight-($this->height_var/$this->height_max*$this->graphheight)*$i);



          $y2=($this->graphheight-($this->height_var/$this->height_max*$this->graphheight)*$i);



          imageline($this->image,0,$y1,$this->graphwidth,$y2,$colorGrey);



          //標出數字

          imagestring($this->image,2,0,$this->graphheight-($this->height_var/$this->height_max*$this->graphheight)*$i,$this->height_var*$i,$colorRed);

       }



       unset($i);



       foreach($this->array_data[0] as $key=>$value)

       {

              //畫豎線

              imageline($this->image,$this->width_var*$i,0,$this->width_var*$i,$this->graphwidth,$colorGrey);



          //標出數字

           imagestring($this->image,2,$this->width_var*$i,$this->graphheight-15,$key,$colorRed);



           $i++;

       }



       /*

       for($i=1;$i<=$this->width_num;$i++)

       {

          //畫豎線

          imageline($this->image,$this->width_var*$i,0,$this->width_var*$i,$this->graphwidth,$colorGrey);

          //標出數字

          imagestring($this->image,2,$this->width_var*$i,$this->graphheight-15,$i,$colorRed);

       }

       */

    }

    function build($graph,$str_var){

       //$graph是用戶指定的圖形種類,$str_var是生成哪個數據的圖

       header("Content-type: image/jpeg");

       $this->create_cloths();          //先要有畫布啊~~

       switch ($graph){

          case "line":

             $this->create_frame();          //畫個框先：）

             $this->create_line();          //打上底格線

             $this->build_line($str_var);          //畫曲線

             break;

          case "rectangle":

             $this->create_frame();                   //畫個框先：）

             $this->build_rectangle($str_var);          //畫矩形

             $this->create_line();                   //打上底格線

             break;

       }

       //輸出圖形并清除內存

       imagepng($this->image);

       imagedestroy($this->image);

    }

}

?>