The <circle> SVG element is an SVG basic shape, used to draw circles based on a center point and a radius.

Example

<svg viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg">
  <circle cx="50" cy="50" r="50" />
</svg>

Attributes

• cx

The x-axis coordinate of the center of the circle.

<svg viewBox="0 0 220 100" width="220" height="110" xmlns="http://www.w3.org/2000/svg">
  <circle cx="25" cy="25" r="25" />
    <circle cx="85" cy="25" r="25" />
    <circle cx="150" cy="25" r="25" />
</svg>

• cy

The y-axis coordinate of the center of the circle.

<svg viewBox="0 0 220 100" width="220" height="110" xmlns="http://www.w3.org/2000/svg">
  <circle cx="25" cy="25" r="25" />
    <circle cx="85" cy="40" r="25" />
    <circle cx="150" cy="60" r="25" />
</svg>

• r

The width of the rect.

<svg viewBox="0 0 220 100" width="220" height="110" xmlns="http://www.w3.org/2000/svg">
  <circle cx="25" cy="25" r="5" />
    <circle cx="85" cy="25" r="15" />
    <circle cx="150" cy="25" r="20" />
</svg>

• fill

<svg viewBox="0 0 220 100" width="220" height="110" xmlns="http://www.w3.org/2000/svg">
  <circle cx="25" cy="25" r="25" fill="#ff0000" />
  <circle cx="85" cy="25" r="25" fill="#00ff00"/>
  <circle cx="150" cy="25" r="25" fill="#0000ff"/>
</svg>

• fill-opacity

<svg viewBox="0 0 220 100" width="220" height="110" xmlns="http://www.w3.org/2000/svg">
  <rect x="0"  width="50" height="50" fill="#ff0000" fill-opacity="0.1"/>
  <rect x="60"  width="50" height="50" fill="#ff0000" fill-opacity="0.5"/>
  <rect x="120"  width="50" height="50" fill="#ff0000" fill-opacity="1"/>
</svg>

• stroke

The stroke attribute is a presentation attribute defining the color used to paint the outline of the shape;

<svg viewBox="0 0 220 100" width="220" height="110" xmlns="http://www.w3.org/2000/svg">
   <rect x="0"  width="50" height="50" fill="#ff0000" stroke="#000000"/>
   <rect x="60"  width="50" height="50" fill="#ff0000" stroke="#00ff00"/>
   <rect x="120"  width="50" height="50" fill="#ff0000" stroke="#0000ff"/>
</svg>

• stroke-width

The stroke-width attribute is a presentation attribute defining the width of the stroke to be applied to the shape.

<svg viewBox="0 0 220 100" width="220" height="110" xmlns="http://www.w3.org/2000/svg">
 <circle cx="25" cy="25" r="25" fill="#ff0000" stroke="#000000" stroke-width="2"/>
  <circle cx="85" cy="25" r="25" fill="#ff0000" stroke="#00ff00" stroke-width="4"/>
  <circle cx="150" cy="25" r="25" fill="#ff0000" stroke="#0000ff" stroke-width="6"/>
</svg>

• stroke-opacity

The stroke-opacity attribute is a presentation attribute defining the opacity applied to the stroke of a shape.

<svg viewBox="0 0 220 100" width="220" height="110" xmlns="http://www.w3.org/2000/svg">
  <circle cx="25" cy="25" r="25" fill="#ff0000" stroke="#000000" stroke-width="6" stroke-opacity="0.1"/>
  <circle cx="85" cy="25" r="25" fill="#ff0000" stroke="#000000" stroke-width="6" stroke-opacity="0.5"/>
  <circle cx="150" cy="25" r="25" fill="#ff0000" stroke="#000000" stroke-width="6" stroke-opacity="1"/>
</svg>