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index.php
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<?php
/**
* 用户图形化分析类
* @authors Andy Chen (bootoo@sina.cn)
* @date 2014-12-14 21:00:18
* @version $Id$
*/
class userClass {
function __construct(){
$this->fontfile = 'XHei.ttc';
}
/**
* 用户图形化分析方法
* @param int $speck_num 画多少个点
* @param int $line_num 画多少条线
* @param int $font_num 填充文字数量
* @return img $im
*/
public function userAnalyse($speck_num,$line_num,$font_num){
// 坐标宽高 coordinate
$coor_width = 2000;
$coor_height = 400;
// 画布边距
$cre_left = 150;
$cre_right = 500;
$cre_top = 350;
$cre_bottom = 150;
// 图柱宽
$con_width = 30;
// x轴和y轴 宽
$con_line_wh = 2;
// x轴和y轴 延伸
$con_line_plus = 100;
//画布
$cre_wh = $coor_width + $cre_left + $cre_right;
$cre_ht = $coor_height + $cre_top + $cre_bottom;
$im = imagecreatetruecolor($cre_wh, $cre_ht);
//字体颜色
$font_color = imagecolorallocate($im, 24, 24, 24);
// 画背景
$red = '244';
$green = '244';
$blue = '245';
$back_color = imagecolorallocate($im, $red, $green, $blue);
imagefilledrectangle($im,0,0,$cre_wh,$cre_ht,$back_color);
// X轴
$red = 4;
$green = 32;
$blue = 41;
$x1 = $cre_left;
$y1 = $coor_height + $cre_top;
$x2 = $coor_width + $cre_left + $con_line_plus;
$y2 = $coor_height + $cre_top;
$line_color = imagecolorallocate($im, $red, $green, $blue); //线条颜色
imagesetthickness($im, $con_line_wh);
imageline($im, $x1, $y1, $x2, $y2, $line_color);
// X轴 - 数值柱形图
$time_num = 24;
$space = $coor_width / $time_num;
for ($i=1; $i <= $time_num; $i++) {
$x1 = $cre_left + $space * $i;
$y1 = $coor_height + $cre_top - mt_rand(0,$coor_height);
$x2 = $cre_left + $space * $i;
$y2 = $coor_height + $cre_top - $con_line_wh;
$coor_red = mt_rand(0,255);
$coor_green = mt_rand(0,255);
$coor_blue = mt_rand(0,255);
$coor_line_color = imagecolorallocate($im, $coor_red, $coor_green, $coor_blue); //线条颜色
imagesetthickness($im, $con_width);
imageline($im, $x1, $y1, $x2, $y2, $coor_line_color);
// X轴 - 时间刻度（小时）
if ($i < 10) {
$font = '0'.$i.':00';
} else {
$font = $i.':00';
}
imagefttext($im, 16, 30, $x2 - 35, $y2 + 50, $font_color, $this->fontfile, $font);
}
// Y轴
$x1 = $cre_left;
$y1 = $cre_top - $con_line_plus;
$x2 = $cre_left;
$y2 = $coor_height + $cre_top;
imagesetthickness($im, $con_line_wh);
imageline($im, $x1, $y1, $x2, $y2, $line_color);
// Y轴 - 数值刻度
$value_num = 5;
$max_value = 4000;
$val = $max_value / $value_num;
$space = $coor_height / $value_num;
for ($i=0; $i < $value_num; $i++) {
$x1 = $cre_left;
$y1 = $cre_top + $space * $i;
$x2 = $cre_left + 10;
$y2 = $cre_top + $space * $i;
imagesetthickness($im, $con_line_wh);
imageline($im, $x1, $y1, $x2, $y2, $line_color);
// 画虚线
$x1 = $cre_left + 20;
$x2 = $coor_width + $cre_left + 20;
$w = imagecolorallocate ($im, 255, 255, 255);
$red = imagecolorallocate ($im, 0, 0, 0);
/* 5 个红色像素，5 个白色像素 */
$style = array( $red, $red, $red, $red, $red, $w, $w, $w, $w, $w );
imagesetstyle($im, $style);
imagesetthickness($im, 1);
imageline($im, $x1, $y1, $x2, $y2, IMG_COLOR_STYLED);
// Y轴 - 数值刻度数值
$font = $val * ($value_num - $i);
imagefttext($im, 16, 0, $x1 - 75, $y1 + 5, $font_color, $this->fontfile, $font);
}
return $im;
}
}
header("Cache-Control:max-age=1,s-maxage=1,no-cache,must-revalidate");
header("Content-type:image/png;charset=utf8");
$obj = new userClass;
$im = $obj->userAnalyse(1000,10,4);
// 生成图片
imagepng($im);
// 销毁图片
imagedestroy($im);
?>