DRAW an ellipse centered at the specified image file coordinates.
<?php
bool imageellipse ( GdImage $image,
int $center_x, int $center_y,
int $width, int $height, int $color )
where,
$image = The image identifier
$center_x = The x-coordinate - the center point
$center_y = The y-coordinate - the center point
$width = The width of the ellipse
$height = The height of the ellipse
$color = The color as returned by imagecolorallocate
?>
EXERCISE
<?php
echo 'PHP VERSION: ' . PHP_VERSION . '<br><br>';
$base_img = "png/baseXx.png";
$dest_img = 'png/PNG 063 01 imageellipse.png';
$id_ellps1 = imagecreatefrompng($base_img);
$red = imagecolorallocate($id_ellps1, 238, 0, 0);
$black = imagecolorallocate($id_ellps1, 0, 0, 0);
$blue = imagecolorallocate($id_ellps1, 0, 0, 238);
/* - -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
circle
horizontal_axle = vertical_axle
- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- */
$xc0ellps1 = 200;
$yc0ellps1 = 150;
$horizontal_axleellps1 = 200;
$vertical_axleellps1 = 200;
imageellipse($id_ellps1, $xc0ellps1,
$yc0ellps1,
$horizontal_axleellps1,
$vertical_axleellps1,
$red);
/* - -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -
ellipse 1
horizontal_axle < vertical_axle
- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - */
$xc0ellps1 = 200;
$yc0ellps1 = 150;
$horizontal_axleellps1 = 50;
$vertical_axleellps1 = 200;
imageellipse($id_ellps1, $xc0ellps1,
$yc0ellps1,
$horizontal_axleellps1,
$vertical_axleellps1,
$black);
/* - -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -
ellipse 2
horizontal_axle > vertical_axle
- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - */
$xc0ellps1 = 200;
$yc0ellps1 = 150;
$horizontal_axleellps1 = 200;
$vertical_axleellps1 = 50;
imageellipse($id_ellps1, $xc0ellps1,
$yc0ellps1,
$horizontal_axleellps1,
$vertical_axleellps1,
$blue);
imagepng($id_ellps1, $dest_img);
?>
<?php echo basename($dest_img); ?>
<br><br><img src="<?php echo $dest_img; ?>"
alt="<?php echo $dest_img; ?>"><br>
EXERCISE
<?php
echo 'PHP VERSION: ' . PHP_VERSION . '<br><br>';
$base_img = "png/baseXx.png";
$dest_img = 'png/PNG 063 02 imageellipse.png';
$id_ellps2 = imagecreatefrompng($base_img);
// Draw a white ellipse
imageellipse($id_ellps2, 180, 150, 280, 200, 26000000);
imagepng($id_ellps2, $dest_img);
?>
<?php echo basename($dest_img); ?>
<br><br><img src="<?php echo $dest_img; ?>"
alt="<?php echo $dest_img; ?>"><br>
EXERCISE
<?php
echo 'PHP VERSION: ' . PHP_VERSION . '<br><br>';
$id_img3 = imagecreatetruecolor(380, 300);
$base_img = "png/PNG 063 03.png";
$dest_img = 'png/PNG 063 03 imageellipse.png';
imagepng($id_img3, $base_img);
echo basename($base_img) . '<br><br><img src="' . $base_img .
'" alt="' . $base_img . '" title="' . $base_img . '"><br><br>';
$id_ellps3 = imagecreatefrompng($base_img);
// Draw a white ellipse
imageellipse($id_ellps3, 180, 150, 280, 200, 26000000);
imagepng($id_ellps3, $dest_img);
?>
<?php echo basename($dest_img); ?>
<br><br><img src="<?php echo $dest_img; ?>"
alt="<?php echo $dest_img; ?>"><br>
