Dashed lines

[x-zolezzi]

Hi,

I have create a new function to draw dashed line :

  //
  // Draws a dashed line.
  //
  //  $x1* (int) - The x coordinate for the first point.
  //  $y1* (int) - The y coordinate for the first point.
  //  $x2* (int) - The x coordinate for the second point.
  //  $y2* (int) - The y coordinate for the second point.
  //  $color (string|array) - The line color.
  //  $thickness (int) - The line thickness (default 1).
  //  $dashedLength (int) - Length of the dashed (default 4)
  //
  // Returns a SimpleImage object.
  //
  public function lineDashed($x1, $y1, $x2, $y2, $color, $thickness = 1, $dashedLength = 4) {
    // Allocate the color
    $color = $this->allocateColor($color);

    // Draw a line
    imagesetthickness($this->image, $thickness);
    $transparent = imagecolorallocatealpha($this->image, 255, 255, 255, 127);
    $style = array();
    for ($i = 0; $i < $dashedLength; $i++) {
        $style[] = $color;
    }
    for ($i = 0; $i < $dashedLength; $i++) {
        $style[] = $transparent;
    }
    imagesetstyle($this->image, $style);
    imageline($this->image, $x1, $y1, $x2, $y2, IMG_COLOR_STYLED);

    return $this;
  }

[claviska]

Sweet. Feel free to submit a PR and I'll check it out.