php做柱型图的函数
关键词：php
#为了方便起见，我又做了一个函数来制作柱型图
/*参数说明：
$graphdata:百分比数据(y轴)
$label:x轴标题
$data:实际数据(y轴)
$graphwidth:图像宽度
$graphheight:图像高度
$graphscale:高度因子(为$graphheight/100)
$graphfont:字体号
$bg;背景颜色值
$text:文本颜色值
$grid:边线颜色值
$bar:柱的颜色值
$bz:备注(不支持中文呀)
*/
function timage(
$graphdata,$label,$data,
$graphwidth,$graphheight,$graphscale,$graphfont,
$bg,$text,$grid,$bar,$bz)
{
header(content-type:image/gif);
$image=imagecreate($graphwidth+50,$graphheight+50);
$bgcolor= imagecolorallocate ($image ,$bg[0],$bg[1],$bg[2]);
$textcolor= imagecolorallocate ($image ,$text[0],$text[1],$text[2]);
$gridcolor=imagecolorallocate ($image ,$grid[0],$grid[1],$grid[2]);
$barcolor=imagecolorallocate ($image ,$bar[0],$bar[1],$bar[2]);
$gridabelwidth=imagefontwidth($graphfont)*3+1;
$gridableheight= imagefontheight ($graphfont);
imageline($image,$gridlabelwidth,0,$gridlabelwidth,$graphheight-1,$gridcolor);
imageline($image,0,$graphheight-1,$graphwidth-1,$graphheight-1,$gridcolor);
for($i=0;$i{
imagedashedline ($image,0,$i,$graphwidth-1,$i,$gridcolor);
imagestring($image,$graphfont,0,$i,round(($graphheight-$i)/$graphscale),$textcolor);
}
$barwidth=(($graphwidth-$gridlabelwidth)/count($graphdata))-30;#¿øöæöùµä×ü¿í¶è
for($i=0;$i {
$bartopx=$gridlabelwidth+(($i+1)*20)+($i*$barwidth);#¿øöæöù¿¿×óµä¾ààë
$barbottomx=$bartopx+$barwidth;
$barbottomy=$graphheight-1;#¿øöæöùµäïâ±ß½ç
$bartopy=$barbottomy-($graphdata[$i]*$graphscale);
imagefilledrectangle($image,$bartopx,$bartopy,$barbottomx,$barbottomy,$barcolor);
$labelx1=$bartopx;
$labely1=$bartopy-15;
$labelx2=$bartopx;
$labely2=$graphheight;
imagestring($image,$graphfont,$labelx1,$labely1,$graphdata[$i].%,$textcolor);
imagestring($image,$graphfont,$labelx2,$labely2,$label[$i],$textcolor);
imagestringup ($image,$graphfont,$labelx1+10,$labely1-$gridableheight,$data[$i],$textcolor);
}
imagestring($image,$graphfont,1,$graphheight+30,$bz,$textcolor);
imagegif ($image);
}
?>
http://www.bkjia.com/phpjc/532264.htmlwww.bkjia.comtruehttp://www.bkjia.com/phpjc/532264.htmltecharticlephp做柱型图的函数 关键词：php #为了方便起见，我又做了一个函数来制作柱型图 /*参数说明： $graphdata:百分比数据(y轴) $label:x轴标题 $data...