IMAGEPOLYGON(3) 1 IMAGEPOLYGON(3)imagepolygon - Draws a polygonSYNOPSIS
bool imagepolygon (resource $image, array $points, int $num_points, int $color)
DESCRIPTION imagepolygon(3) creates a polygon in the given $image.
PARAMETERS
o $
image -An image resource, returned by one of the image creation functions, such as imagecreatetruecolor(3).
o $points
- An array containing the polygon's vertices, e.g.:
+----------+------+
|points[0] | |
| | |
| | = x0 |
| | |
|points[1] | |
| | |
| | = y0 |
| | |
|points[2] | |
| | |
| | = x1 |
| | |
|points[3] | |
| | |
| | = y1 |
| | |
+----------+------+
o $num_points
- Total number of points (vertices).
o $color
- A color identifier created with imagecolorallocate(3).
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
imagepolygon(3) example
<?php
// Create a blank image
$image = imagecreatetruecolor(400, 300);
// Allocate a color for the polygon
$col_poly = imagecolorallocate($image, 255, 255, 255);
// Draw the polygon
imagepolygon($image, array(
0, 0,
100, 200,
300, 200
),
3,
$col_poly);
// Output the picture to the browser
header('Content-type: image/png');
imagepng($image);
imagedestroy($image);
?>
The above example will output something similar to:[NOT DISPLAYABLE MEDIA]Output of example : imagepolygon()
SEE ALSO imagecreate(3), imagecreatetruecolor(3).
PHP Documentation Group IMAGEPOLYGON(3)
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IMAGEELLIPSE(3) 1 IMAGEELLIPSE(3)imageellipse - Draw an ellipseSYNOPSIS
bool imageellipse (resource $image, int $cx, int $cy, int $width, int $height, int $color)
DESCRIPTION
Draws an ellipse centered at the specified coordinates.
PARAMETERS
o $
image -An image resource, returned by one of the image creation functions, such as imagecreatetruecolor(3).
o $cx
- x-coordinate of the center.
o $cy
- y-coordinate of the center.
o $width
- The ellipse width.
o $height
- The ellipse height.
o $color
- The color of the ellipse. A color identifier created with imagecolorallocate(3).
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
imageellipse(3) example
<?php
// Create a blank image.
$image = imagecreatetruecolor(400, 300);
// Select the background color.
$bg = imagecolorallocate($image, 0, 0, 0);
// Fill the background with the color selected above.
imagefill($image, 0, 0, $bg);
// Choose a color for the ellipse.
$col_ellipse = imagecolorallocate($image, 255, 255, 255);
// Draw the ellipse.
imageellipse($image, 200, 150, 300, 200, $col_ellipse);
// Output the image.
header("Content-type: image/png");
imagepng($image);
?>
The above example will output something similar to:[NOT DISPLAYABLE MEDIA]Output of example : imageellipse()
NOTES
Note
This function requires GD 2.0.2 or later.
SEE ALSO imagefilledellipse(3), imagearc(3).
PHP Documentation Group IMAGEELLIPSE(3)
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