SVG patternUnits Attribute

Last Updated : 31 Mar, 2022

The patternUnits attribute specifies that which coordinate system must be used for the geometry properties of the <pattern> element. Only <pattern> element is using this attribute.

Syntax:

patternUnits = userSpaceOnUse | objectBoundingBox

Attribute Values: The patternUnits attribute accepts the values mentioned above and described below:

userSpaceOnUse: It shows that when the pattern was applied then all coordinates for the geometry properties refer to the user coordinate system.
objectBoundingBox: It shows that all coordinates for the geometry properties represent percentages or fractions of the bounding box of the element.

Below examples illustrate the use of patternUnits attribute.

Example 1:

HTML

<!DOCTYPE html> 
<html> 
  
<body> 
    <h2 style="color: green;  
             margin-left: 25px;"> 
        GeeksforGeeks 
    </h2> 
  
    <svg viewBox="0 0 600 100" 
        xmlns="http://www.w3.org/2000/svg"> 
  
        <pattern id="geek1" x="-5" 
            fill="green" y="8.5" width="20" 
            height="25" 
            patternUnits="userSpaceOnUse"> 
  
            <circle cx="10" cy="10" r="8" /> 
        </pattern> 
  
        <rect x="10" y="0" width="100" 
            height="100" fill="url(#geek1)" /> 
    </svg> 
</body> 
  
</html> 

Output:

Example 2:

HTML

<!DOCTYPE html> 
<html> 
  
<body> 
    <h2 style="color: green;  
            margin-left: 25px;"> 
        GeeksforGeeks 
    </h2> 
  
    <svg viewBox="0 0 600 100" 
        xmlns="http://www.w3.org/2000/svg"> 
  
        <pattern id="geek2" x=".125" y=".125"
            width=".175" height=".175" 
            fill="green" 
            patternUnits="objectBoundingBox"> 
  
            <circle cx="10" cy="10" r="8" /> 
        </pattern> 
  
        <rect x="10" y="0" width="100" 
            height="100" fill="url(#geek2)" /> 
    </svg> 
</body> 
  
</html> 