PHP | ImagickDraw getTextUnderColor() Function

The ImagickDraw::getTextUnderColor() function is an inbuilt function in PHP which is used to get the color of a background rectangle to place under text annotations. By default, this background rectangle is transparent.

Syntax:

ImagickPixel ImagickDraw::getTextUnderColor( void )

Parameters: This function doesn’t accepts any parameters.

Return Value: This function returns an ImagickPixel value containing the under color.

Below programs illustrate the ImagickDraw::getTextUnderColor() function in PHP:



Program 1:

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<?php
  
// Create a new ImagickDraw object
$draw = new ImagickDraw();
  
// Get the text under color
$color = $draw->getTextUnderColor()->getColorAsString();
echo $color;
?>

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Output:

srgba(0, 0, 0, 0) // Which is the default transparent color.

Program 2:

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<?php
  
// Create a new ImagickDraw object
$draw = new ImagickDraw();
  
// Set the text under color
$draw->setTextUnderColor('green');
  
// Get the text under color
$color = $draw->getTextUnderColor()->getColorAsString();
echo $color;
?>

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Output:

srgb(0, 128, 0)

Program 3:

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<?php
  
// Create a new imagick object
$imagick = new Imagick();
  
// Create a image on imagick object
$imagick->newImage(800, 250, '#1cced4');
  
// Create a new ImagickDraw object
$draw = new ImagickDraw();
  
// Set the font size
$draw->setFontSize(35);
  
// Set the text under color
$draw->setTextUnderColor('green');
  
// Annotate a text
$draw->annotation(50, 80, "The text under color here is "
        . $draw->getTextUnderColor()->getColorAsString());
  
// Set the text under color
$draw->setTextUnderColor('blue');
  
// Annotate a text
$draw->annotation(50, 160, "The text under color here is "
        . $draw->getTextUnderColor()->getColorAsString());
  
// Render the draw commands
$imagick->drawImage($draw);
  
// Show the output
$imagick->setImageFormat('png');
header("Content-Type: image/png");
echo $imagick->getImageBlob();
?>

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Output:

Reference: https://www.php.net/manual/en/imagickdraw.gettextundercolor.php




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