harmony 鸿蒙@ohos.graphics.common2D (Common Data Types of 2D Graphics)

2025-06-12
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@ohos.graphics.common2D (Common Data Types of 2D Graphics)

The common2D module defines some common data types in the 2D graphics field.

NOTE

The initial APIs of this module are supported since API version 11. Newly added APIs will be marked with a superscript to indicate their earliest API version.

Modules to Import

import { common2D } from '@kit.ArkGraphics2D';

Color

Describes a color in ARGB format.

System capability: SystemCapability.Graphics.Drawing

Name	Type	Readable	Writable	Description
alpha	number	Yes	Yes	Alpha component of the color. The value is an integer ranging from 0 to 255.
red	number	Yes	Yes	Red component of the color. The value is an integer ranging from 0 to 255.
green	number	Yes	Yes	Green component of the color. The value is an integer ranging from 0 to 255.
blue	number	Yes	Yes	Blue component of the color. The value is an integer ranging from 0 to 255.

Rect

Describes a rectangle, which can be defined by two coordinate points: upper left corner point and lower right corner point.

System capability: SystemCapability.Graphics.Drawing

Name	Type	Readable	Writable	Description
left	number	Yes	Yes	X coordinate of the upper left corner of the rectangle. The value is a floating point number.
top	number	Yes	Yes	Y coordinate of the upper left corner of the rectangle. The value is a floating point number.
right	number	Yes	Yes	X coordinate of the lower right corner of the rectangle. The value is a floating point number.
bottom	number	Yes	Yes	Y coordinate of the lower right corner of the rectangle. The value is a floating point number.