function make_kml($mid)
{
$map = map_get_single($mid);
if ($map === false) {
return array(false, "no such map");
}
// 把地圖拿出來換成 kml
$gpx = str_replace(".tag.png", ".gpx", $map['filename']);
// test kml happyman add test path
$cachefile = sprintf("/srv/www/htdocs/map/gpxtmp/test/%06d/%d/%s", $map['uid'], $map['mid'], basename(str_replace(".gpx", ".kml", $gpx)));
if (file_exists($gpx)) {
if (0 && file_exists($cachefile) && filemtime($cachefile) >= filemtime($gpx)) {
return array(true, $cachefile);
}
@mkdir(dirname($cachefile), 0755, true);
//$cmds_args[10] = "-x nuketypes,tracks,routes -x simplify,count=10 -x position,distance=20k";
// $cmds_args[11] = "-x nuketypes,tracks,routes -x position,distance=10k";
// $cmds_args[12] = "-x nuketypes,tracks,routes -x position,distance=5k";
//$cmds_args[13] = "-x nuketypes,tracks,routes -x position,distance=2k";
//$cmds_args[14] = "-x nuketypes,tracks,routes -x position,distance=1k";
//$cmds_args[15] = "-x nuketypes,tracks,routes -x position,distance=500m";
//$cmds_args[16] = "-x nuketypes,tracks,routes -x position,distance=200m";
//$cmds_args[17] = "-x nuketypes,tracks,routes -x position,distance=100m";
//$cmds_args[18] = "-x nuketypes,tracks,routes -x position,distance=1m";
$cmd = sprintf("gpsbabel -i gpx -f %s -x nuketypes,points -o kml,lines=1,points=0,line_color=%s,line_width=3 -F %s", $gpx, pick_color($mid), $cachefile);
exec($cmd);
return array(true, $cachefile);
} else {
return array(false, "no gpx");
}
}
$number = round(2.4);
printf("2.4 rounds to the float %s", $number);
print "<br> \n";
$number = floor(2.4);
printf("2.4 rounds down to the float %s", $number);
print "<br> \n";
print "<h3> random </h3>";
function pick_color()
{
$colors = array('red', 'orange', 'yellow', 'blue', 'green', 'indigo', 'violet');
$i = mt_rand(0, count($colors) - 1);
return $colors[$i];
}
mt_srand(5555);
$first = pick_color();
$second = pick_color();
// Так как mt_srand() передается конкретное значение, каждый раз
// будут выбираться одни и те же цвета: красный (red) и желтый (yellow)
print "{$first} is red and {$second} is yellow. <br>";
// Функция возвращает случайно выбранный ключ из взвешенного набора
function rand_weighted($numbers)
{
$total = 0;
foreach ($numbers as $number => $weight) {
$total += $weight;
$distribution[$number] = $total;
}
$rand = mt_rand(0, $total - 1);
foreach ($distribution as $number => $weights) {
if ($rand < $weights) {
return $number;
<?php
/*
Printing numbers with Rand
*/
$lower = 65;
$upper = 97;
$random_number = mt_rand($lower, $upper);
echo $random_number;
echo "<hr>";
function pick_color()
{
$colores = array('red', 'azul', 'verde', 'amarillo');
$i = mt_rand(0, count($colores) - 1);
return $colores[$i];
}
mt_rand(24913);
$first = pick_color();
$segundo = pick_color();
print "{$first} es rojo y {$segundo} es verde";
