<?
header('Content-type: image/png;');

$img = imagecreatetruecolor(1800,1800);


imagefill($img,1,1,imagecolorallocate($img,255,255,255));
imagefilledellipse($img,900,900,1800,1800,$color[0]);

$coord_code = file_get_contents('coords.txt');
$coord_info = explode("\n",$coord_code);
$num_coord_info = count($coord_info);


imagestring($img,5,900,20,"0°",imagecolorallocate($img,255,0,0));
imagestring($img,5,1780,900,"90°",imagecolorallocate($img,255,0,0));
imagestring($img,5,900,1780,"180°",imagecolorallocate($img,255,0,0));
imagestring($img,5,20,900,"270°",imagecolorallocate($img,255,0,0));


for($a=0;$a<$num_coord_info;$a++) {
$coord[$a] = explode(";",$coord_info[$a]);
if($coord[$a][1]<900) {
$angle = $coord[$a][0]*(M_PI/1800);
$xcoord = 900-($coord[$a][1]*cos($angle));
$ycoord = 900+($coord[$a][1]*sin($angle));
$info['Pix'] = ceil(255*(pow(pow(100,1/5),(2+$coord[$a][2]))/(pow(pow(100,1/5),8.5))));
//$info['Pix'] = ceil(255*((pow(100,(4/5)))/(pow(100,($coord[$a][2]/5)))));
if($info['Pix']>255) { $info['Pix'] = 255; }
if($info['Pix']<1) { $info['Pix'] = 1; }
imagesetpixel($img,$xcoord,$ycoord,imagecolorallocate($img,$info['Pix'],$info['Pix'],$info['Pix']));
}
}


imagepng($img);
imagedestroy($img);


?>