1# Circle 2 3 The **\<Circle>** component is used to draw a circle. 4 5> **NOTE** 6> 7> This component is supported since API version 7. Updates will be marked with a superscript to indicate their earliest API version. 8 9 10## Child Components 11 12Not supported 13 14 15## APIs 16 17Circle(options?: {width?: string | number, height?: string | number}) 18 19Since API version 9, this API is supported in ArkTS widgets. 20 21**Parameters** 22 23| Name| Type| Mandatory| Description| 24| -------- | -------- | -------- | -------- | 25| width | string \| number | No| Width of the circle.<br>Default value: **0**| 26| height | string \| number | No| Height of the circle.<br>Default value: **0**| 27 28## Attributes 29 30In addition to the [universal attributes](ts-universal-attributes-size.md), the following attributes are supported. 31 32| Name| Type| Description| 33| -------- | -------- | -------- | 34| fill | [ResourceColor](ts-types.md) | Color of the fill area.<br>Default value: **Color.Black**<br>Since API version 9, this API is supported in ArkTS widgets.| 35| fillOpacity | number \| string \| [Resource](ts-types.md#resource)| Opacity of the fill area.<br>Default value: **1**<br>Since API version 9, this API is supported in ArkTS widgets.| 36| stroke | [ResourceColor](ts-types.md) | Stroke color. If this attribute is not set, the component does not have any stroke.<br>Since API version 9, this API is supported in ArkTS widgets.| 37| strokeDashArray | Array<Length> | Stroke dashes.<br>Default value: **[]**<br>Since API version 9, this API is supported in ArkTS widgets.| 38| strokeDashOffset | number \| string | Offset of the start point for drawing the stroke.<br>Default value: **0**<br>Since API version 9, this API is supported in ArkTS widgets.| 39| strokeLineCap | [LineCapStyle](ts-appendix-enums.md#linecapstyle) | Cap style of the stroke.<br>Default value: **LineCapStyle.Butt**<br>Since API version 9, this API is supported in ArkTS widgets.| 40| strokeLineJoin | [LineJoinStyle](ts-appendix-enums.md#linejoinstyle) | Join style of the stroke.<br>Default value: **LineJoinStyle.Miter**<br>Since API version 9, this API is supported in ArkTS widgets.<br>**NOTE**<br>This attribute does not work for the **\<circle>** component, which does not have corners.| 41| strokeMiterLimit | number \| string | Limit on the ratio of the miter length to the value of **strokeWidth** used to draw a miter join.<br>Default value: **4**<br>Since API version 9, this API is supported in ArkTS widgets.<br>**NOTE**<br>This attribute does not take effect for the **\<Circle>** component, because it does not have a miter join.| 42| strokeOpacity | number \| string \| [Resource](ts-types.md#resource)| Stroke opacity.<br>Default value: **1**<br>Since API version 9, this API is supported in ArkTS widgets.<br>**NOTE**<br>The value range is [0.0, 1.0]. If the set value is less than 0.0, **0.0** will be used. If the set value is greater than 1.0, **1.0** will be used.| 43| strokeWidth | Length | Stroke width.<br>Default value: **1**<br>Since API version 9, this API is supported in ArkTS widgets.<br>**NOTE**<br>The value cannot be a percentage.| 44| antiAlias | boolean | Whether anti-aliasing is enabled.<br>Default value: **true**<br>Since API version 9, this API is supported in ArkTS widgets.| 45 46 47## Example 48 49```ts 50// xxx.ets 51@Entry 52@Component 53struct CircleExample { 54 build() { 55 Column({ space: 10 }) { 56 // Draw a circle whose diameter is 150. 57 Circle({ width: 150, height: 150 }) 58 // Draw a circle whose diameter is 150 and stroke color is red. (If the width and height values are different, the smaller value will be used as the diameter.) 59 Circle() 60 .width(150) 61 .height(200) 62 .fillOpacity(0) 63 .strokeWidth(3) 64 .stroke(Color.Red) 65 .strokeDashArray([1, 2]) 66 }.width('100%') 67 } 68} 69``` 70 71 72
