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$image = imagecreatetruecolor($this->coeff_x,$this->coeff_y);
imagealphablending($image,false);
imagesavealpha($image,true);
$rgb = getRGB($this->degrade[0]);
$bg=imagecolorallocatealpha($image,$rgb[0],$rgb[1],$rgb[2],$this->deg_transparency);
imagefill($image,0,0,$bg);
for ($i=0;$i<=$niveau_iso;$i++) {
$image_isocontour = imagecreatetruecolor($this->coeff_x,$this->coeff_y);
imagealphablending($image_isocontour,false);
imagesavealpha($image_isocontour,true);
$bg_iso=imagecolorallocatealpha($image_isocontour,255,255,255,127);
imagefill($image_isocontour,0,0,$bg_iso);
/* ICI IL Y A UN ALGO QUI DESSINE */
imagecopy($image,$image_isocontour,0,0,0,0,$this->coeff_x,$this->coeff_y);
imagedestroy($image_isocontour);
}
return $image; |
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