public static function color($num = 0, $alpha = 'FF', $scheme = '')
{
$colors = array();
$value = array('cc', 'ff', '99', '66');
$num = intval($num);
# check if colour scheme entry exists
# fall back to old method if not found
if (isset($scheme["{$num}"])) {
$color = $scheme["{$num}"] . $alpha;
return $color;
}
foreach ($value as $ri) {
for ($z = 1; $z < 8; $z++) {
$color = "#";
if (($z & 4) >= 1) {
$color .= "{$ri}";
} else {
$color .= "00";
}
if (($z & 2) >= 1) {
$color .= "{$ri}";
} else {
$color .= "00";
}
if (($z & 1) >= 1) {
$color .= "{$ri}";
} else {
$color .= "00";
}
$icolor = rrd::color_inverse($color);
$pos = array_search($color, $colors);
$ipos = array_search($icolor, $colors);
if ($pos == false) {
$colors[] = $color . $alpha;
}
if ($ipos == false) {
$colors[] = $icolor . $alpha;
}
}
}
if (array_key_exists($num, $colors)) {
return $colors[$num];
} else {
return $colors[0];
}
}
public static function color($num = 0, $alpha = 'FF')
{
$colors = array();
$value = array('cc', 'ff', '99', '66');
$num = intval($num);
foreach ($value as $ri) {
for ($z = 1; $z < 8; $z++) {
$color = "#";
if (($z & 4) >= 1) {
$color .= "{$ri}";
} else {
$color .= "00";
}
if (($z & 2) >= 1) {
$color .= "{$ri}";
} else {
$color .= "00";
}
if (($z & 1) >= 1) {
$color .= "{$ri}";
} else {
$color .= "00";
}
$icolor = rrd::color_inverse($color);
$pos = array_search($color, $colors);
$ipos = array_search($icolor, $colors);
if ($pos == false) {
$colors[] = $color . $alpha;
}
if ($ipos == false) {
$colors[] = $icolor . $alpha;
}
}
}
if (array_key_exists($num, $colors)) {
return $colors[$num];
} else {
return $colors[0];
}
}
