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SVG patternUnits attribute
  • Last Updated : 18 Nov, 2020

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>

Output:




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