<?phpclass plchart { var $chart; var $data = array( 'title' => "title\ntest", 'group_count' => 4, //how many groups 'group_size' => 4, //size of each group 'group_desc' => array('1月份', '2月份', '3月份','333'), //describe text of each group, the size equal to group_count, other wise will be ingored or empty('') 'column_desc' => array('成交额', '销售额','不知道','我也不知道'), //describe text of each column in group, size same as group_size, other wise will be ingored or empty('') 'raw_data' => array(//size of raw_data is the same as group_size array(34, 29, 55,33), //size of eache data is the same as group_count array(45, 45, 61,44), array(33,44,44,44), array(33,44,44,44) ), 'legend_y' => '万元', 'legend_x' => '日期', ); //image parameter var $width = 1200; var $height = 600; var $quality = 100; var $bgcolor; var $savefile = ''; //image parameter end //image header parameter (title & legend) var $header_height = 70; var $header_bgcolor; var $title_top_margin = 10; var $title_left_margin = 10; //字体 var $title_font_color; var $title_font_size; var $title_font_style; //legend paramenter var $legend_height = 50; var $legend_width = 100; var $legend_bgcolor; var $legend_color_array = array(); //legend colors ,size same as group_size var $each_legend_h = 10; var $each_legend_w = 20; var $each_legend_gap = 5; //字体 var $legend_font_color; var $legend_font_size; var $legend_font_style; //chart paramenter var $y_legend_font_color; var $y_legend_font_size; var $y_legend_font_style; var $x_legend_font_color; var $x_legend_font_size; var $x_legend_font_style; var $ruler_line_color; var $chart_y_left = 10; //y轴头部留下 var $chart_x_left = 10; //x轴头部留下 var $chart_left_margin = 70; //用来写纵坐标的刻度 var $chart_right_margin = 10; var $chart_bottom_margin = 50; //用来写横坐标的说明 var $chart_left_font_color; var $chart_left_font_size; var $chart_left_font_style; var $chart_bottom_font_color; var $chart_bottom_font_size; var $chart_bottom_font_style; var $chart_top_font_color; var $chart_top_font_size; var $chart_top_font_style; function __construct($w=1200, $h=600) { $this->width = $w; $this->height = $h; $this->chart = @imagecreatetruecolor($this->width, $this->height) or die("Cannot Initialize new GD image stream"); $white = imagecolorallocate($this->chart, 255, 255, 255); $black = imagecolorallocate($this->chart, 0, 0, 0); $light = imagecolorallocate($this->chart, 244, 244, 244); $red = imagecolorallocate($this->chart, 255, 0, 0); $green = imagecolorallocate($this->chart, 0, 255, 0); $blue = imagecolorallocate($this->chart, 0, 0, 255); $ruler_color = imagecolorallocate($this->chart, 144, 144, 144); $common_font_style = 'c:/windows/fonts/simhei.ttf'; $common_font_size = 12; $this->bgcolor = $light; $this->header_bgcolor = $white; $this->title_font_color = $black; $this->title_font_size = 18; $this->title_font_style = $common_font_style; $this->legend_bgcolor = $white; $this->legend_color_array = array( imagecolorallocate($this->chart, 0, 0, 255), imagecolorallocate($this->chart, 0, 255, 0), imagecolorallocate($this->chart, 255, 0, 0), imagecolorallocate($this->chart, 144, 144, 144), ); $this->legend_font_color = $black; $this->legend_font_size = 10; $this->legend_font_style = $common_font_style; $this->y_legend_font_color = $green; $this->y_legend_font_size = $common_font_size; $this->y_legend_font_style = $common_font_style; $this->x_legend_font_color = $green; $this->x_legend_font_size = $common_font_size; $this->x_legend_font_style = $common_font_style; $this->ruler_line_color = $ruler_color; $this->chart_left_font_color = $black; $this->chart_left_font_size = $common_font_size; $this->chart_left_font_style = $common_font_style; $this->chart_bottom_font_color = $black; $this->chart_bottom_font_size = 15; $this->chart_bottom_font_style = $common_font_style; $this->chart_top_font_color = $black; $this->chart_top_font_size = $common_font_size; $this->chart_top_font_style = $common_font_style; } function buildimage() { imagefill($this->chart, 0, 0, $this->bgcolor); //fill the image with background color } function buildheader() { //header start position (left-top point) $startx = 0; $starty = 0; //height & width $height = $this->header_height; $width = $this->width - $startx; imagefilledrectangle($this->chart, $startx, $starty, $startx + $width, $starty + $height, $this->header_bgcolor); imagettftext($this->chart, $this->title_font_size, 0, $startx + $this->title_left_margin, $starty + $this->title_top_margin + $this->title_font_size, $this->title_font_color, $this->title_font_style, $this->data['title']); $legend_startx = $this->width - $this->legend_width; $legend_starty = $this->header_height - $this->legend_height; $_sy = $legend_starty; for ($i = 0; $i < $this->data['group_size']; $i++) { imagefilledrectangle($this->chart, $legend_startx, $_sy, $legend_startx + $this->each_legend_w, $_sy + $this->each_legend_h, $this->legend_color_array[$i]); imagettftext($this->chart, $this->legend_font_size, 0, $legend_startx + $this->each_legend_w + $this->each_legend_gap, $_sy + $this->each_legend_h, $this->legend_font_color, $this->legend_font_style, $this->data['column_desc'][$i]); $_sy = $_sy + $this->each_legend_h + $this->each_legend_gap; } } function buildchart() { //获取图像原点 $originx = $this->chart_left_margin; $originy = $this->height - $this->chart_bottom_margin; // 取得图形宽度和高度 - get width and height of the graphics $w = $this->width - $this->chart_left_margin - $this->chart_right_margin; $h = $this->height - $this->header_height - $this->chart_bottom_margin; //画出x轴与y轴 imageline($this->chart, $originx, $originy, $originx + $w, $originy, $this->ruler_line_color); // x imageline($this->chart, $originx, $originy, $originx, $originy - $h, $this->ruler_line_color); // y //imagefilledrectangle($this->chart,$posx,$posy-$h,$posx+$w,$posy,$this->legend_color_array[3]); $maxvalue = 0; foreach ($this->data['raw_data'] as $v) foreach ($v as $v1) $maxvalue = max($maxvalue, $v1); //x轴每一个空隙的大小 $fieldnumberx = $this->data['group_count'] + $this->data['group_size'] * $this->data['group_count'] * 2 + 1; $eachx = ($w - $this->chart_x_left) / $fieldnumberx; //x标尺 /* for($i = 0; $i <= $fieldnumberx; $i ++) imageline($this->chart, $originx+$eachx*$i, $originy, $originx+$eachx*$i, $originy - $h, $this->ruler_line_color); */ //计算y轴的单位长度与分割数 $multiple = floor(log10($maxvalue)); // 取得数值区间 - get data field $field = floor($maxvalue / pow(10, $multiple)) + 1; // 区间数 - number of unit fields $fieldnumbery = $field > 5 ? $field : 5; // 数据区域数量 - number of data fields $eachy = ($h - $this->chart_y_left) / $fieldnumbery; $topvaluey = $field * pow(10, $multiple); //y标尺 for ($i = 0; $i <= $fieldnumbery; $i++) { imageline($this->chart, $originx, $originy - $eachy * $i, $originx + $w, $originy - $eachy * $i, $this->ruler_line_color); if($i != $fieldnumbery) imagettftext($this->chart, $this->chart_left_font_size, 0, 0, $originy - $eachy * $i + $this->chart_left_font_size / 2, $this->chart_left_font_color, $this->chart_left_font_style, $i == 0 ? 0 : $topvaluey / $fieldnumbery * $i); else imagettftext($this->chart, $this->y_legend_font_size, 0, 0, $originy - $eachy * $i + $this->y_legend_font_size / 2,$this->y_legend_font_color, $this->y_legend_font_style, $this->data['legend_y']); } imagettftext($this->chart, $this->x_legend_font_size, 0, $originx + $w - $this->chart_x_left - $eachx, $originy + $this->x_legend_font_size + 3,$this->x_legend_font_color,$this->x_legend_font_style,$this->data['legend_x']); // 生成条柱 - make columns $group_w = $this->data['group_size'] * 2 * $eachx; $chart_real_height = $h - $this->chart_y_left; for ($i = 0; $i < $this->data['group_count']; $i++){ $_x = $originx + $eachx * ($i + 1) + $group_w * $i; $each_data_key = $this->data['group_desc'][$i]; imagettftext($this->chart, $this->chart_bottom_font_size, 0, $_x, $originy + $this->chart_bottom_font_size + 3, $this->chart_bottom_font_color, $this->chart_bottom_font_style, $each_data_key); for ($j = 0; $j < $this->data['group_size']; $j++) { $each_originx = $originx + $eachx * ($i + 1) + $group_w * $i + $j * $eachx * 2; $each_data_value = $this->data['raw_data'][$j][$i]; $each_height = $chart_real_height * ($each_data_value / $topvaluey); imagefilledrectangle($this->chart, $each_originx, $originy - $each_height, $each_originx + 2 * $eachx, $originy, $this->legend_color_array[$j]); imagettftext($this->chart, $this->chart_top_font_size, 0, $each_originx, $originy - $each_height, $this->chart_top_font_color, $this->chart_top_font_style,$each_data_value); } } /* // 生成条柱 - make columns $paramkeys = array_keys($this->param); for($j = 0; $j < $num; $j++) { $columnheight = ($h - $margin * 2) * ($this->param[$paramkeys[$j]] / $topvalue); // 条柱高度 - column height $columnx = $startx + $unitx / 4 + $unitx * $j; // 条柱起点x坐标 - x coordinate of column imagefilledrectangle($this->chart, $columnx, $starty - $columnheight, $columnx + $unitx / 2, $starty - 1, $this->colors[$j * 2]); // 画条柱 - draw columns } */ } /* * @todo 输出图像至浏览器或文件 - output the chart image to browser or file */ function outputchart() { $this->buildimage(); $this->buildheader(); $this->buildchart(); // 建立图标 - build chart //$this->buildchart(); // 写入图形 - build graphics //$this->buildgraphics(); // 写入注释 - build description //$this->builddesc(); // 写入标题 - build title //$this->buildtitle(); // 输出图像 - flush image // 图像头信息 - header of the image file header("Content-type: image/jpeg"); imagejpeg($this->chart, $this->savefile, $this->quality); imagedestroy($this->chart); }}/* * ******************************************************************************* 演示文件demo.php: * ******************************************************************************** */$chart = new plchart();$data1 = array();$data2 = array();$mo = array();for($i = 0; $i < 31; $i++){ $data1[] = $i*20; $data2[] = $i*20+4; $mo[] = $i +1;}$chart->chart_left_margin = 50;$chart->data = array( 'title' => "title\ntest", 'group_count' => 31, //how many groups 'group_size' => 2, //size of each group 'group_desc' => $mo, //describe text of each group, the size equal to group_count, other wise will be ingored or empty('') 'column_desc' => array('成交额', '销售额'), //describe text of each column in group, size same as group_size, other wise will be ingored or empty('') 'raw_data' => array(//size of raw_data is the same as group_size $data1, //size of eache data is the same as group_count $data2, ), 'legend_y' => '万元', 'legend_x' => '日期',);$chart->outputchart();?>
