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PHP ImagickDraw getTextInterlineSpacing()用法及代碼示例


ImagickDraw::getTextInterlineSpacing()函數是PHP中的內置函數,用於獲取文本行距。數字越大,空間越大。默認間距為0。

用法:

float ImagickDraw::getTextInterlineSpacing( void )

參數:此函數不接受任何參數。


返回值:此函數返回一個浮點值,其中包含文本行距。

異常:該函數在錯誤時引發ImagickException。

以下示例程序旨在說明PHP中的ImagickDraw::getTextInterlineSpacing()函數:

示例1:

<?php 
  
// Create a new ImagickDraw object 
$draw = new ImagickDraw(); 
  
// Get the text interline spacing 
$textInterlineSpacing = $draw->getTextInterLineSpacing(); 
echo $textInterlineSpacing; 
?>

輸出:

0 // Which is the default value

示例2:

<?php 
  
// Create a new ImagickDraw object 
$draw = new ImagickDraw(); 
  
// Set the text interline spacing 
$draw->setTextInterLineSpacing(50); 
  
// Get the text interline spacing 
$textInterlineSpacing = $draw->getTextInterLineSpacing(); 
echo $textInterlineSpacing; 
?>

輸出:

50

示例3:

<?php 
  
// Create a new imagick object 
$imagick = new Imagick(); 
  
// Create a image on imagick object 
$imagick->newImage(800, 250, 'brown'); 
  
// Create a new ImagickDraw object 
$draw = new ImagickDraw(); 
  
// Set the fill color 
$draw->setFillColor('white'); 
  
// Set the font size 
$draw->setFontSize(20); 
  
// Annotate a text 
$draw->annotation(50, 100, "The text interterline \nspacing here is "
            . $draw->getTextInterLineSpacing()); 
  
// Set the text interline spacing 
$draw->setTextInterLineSpacing(30); 
  
// Annotate a text 
$draw->annotation(300, 100, "The text interterline \nspacing here is "
            . $draw->getTextInterLineSpacing()); 
  
// Set the text interline spacing 
$draw->setTextInterLineSpacing(50); 
  
// Annotate a text 
$draw->annotation(550, 100, "The text interterline \nspacing here is "
            . $draw->getTextInterLineSpacing()); 
  
// Render the draw commands 
$imagick->drawImage($draw); 
  
// Show the output 
$imagick->setImageFormat('png'); 
header("Content-Type: image/png"); 
echo $imagick->getImageBlob(); 
?>

輸出:

參考: https://www.php.net/manual/en/imagickdraw.gettextinterlinespacing.php



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注:本文由純淨天空篩選整理自gurrrung大神的英文原創作品 PHP | ImagickDraw getTextInterlineSpacing() Function。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。