php生成曲线图程序
发布:smiling 来源: PHP粉丝网 添加日期:2014-08-20 09:45:55 浏览: 评论:0
- <?php
- /*******************用法*************************
- $gg=new build_graph();
- $d1=array(0,62,25,20,20,100,99); //曲线一
- //$d1=array('15'=>5,'16'=>8,'17'=>7,'18'=>9,'19'=>10,'20'=>15,'21'=>9); 改成这个形式啦
- $d2=array(0,80,75,65,100,56,79); //曲线二
- $d3=array(0,60,50,25,12,56,45); //曲线三 一下可以继续以此类推
- $gg->add_data($d1);
- $gg->add_data($d2);
- $gg->add_data($d3);
- $gg->set_colors("ee00ff,dd8800,00ff00"); //对应曲线的颜色
- //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);
- */
- class build_graph {
- var $graphwidth=300;
- 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($array_user_data) or emptyempty($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"
- $this->array_color=split(",",$str_colors);
- }
- ######################################################################################################
- function build_line($var_num)
- {
- if(!emptyempty($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;
- }
- //画线
- 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);
- }*/
- }
- //画点
- $colorRed=imagecolorallocate($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], $this->colorLightBlue[2]);
- if(emptyempty($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(){
- //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()
- {//开源代码phpfensi.com
- //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
- $y1=($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,$colorGrey);
- //标出数字
- imagestring($this->image,2,0,$this->graphheight-($this->height_var/$this->height_max*$this->graphheight)*$i,$this->height_var*$i,$colorRed);
- }
- unset($i);
- foreach($this->array_data[0] as $key=>$value)
- {
- //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,$this->graphheight-15,$key,$colorRed);
- $i++;
- }
- /*
- for($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
- header("Content-type: image/jpeg");
- $this->create_cloths(); //先要有画布啊~~
- switch ($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);
- }
- }
- ?>
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