Class (Region)

Describes a region, which is used to describe the region where the shape can be drawn.

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.

The initial APIs of this class are supported since API version 12.

This module uses the physical pixel unit, px.

This module operates under a single-threaded model. The caller needs to manage thread safety and context state transitions.

Modules to Import

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

constructor²⁰⁺

constructor()

Constructs a Region object.

System capability: SystemCapability.Graphics.Drawing

import { RenderNode } from '@kit.ArkUI';
import { drawing } from '@kit.ArkGraphics2D';

class DrawingRenderNode extends RenderNode {
  draw(context: DrawContext) {
    const canvas = context.canvas;
    const pen = new drawing.Pen();
    pen.setColor({
      alpha: 255,
      red: 255,
      green: 0,
      blue: 0
    });
    pen.setStrokeWidth(10);
    canvas.attachPen(pen);
    let region = new drawing.Region();
    region.setRect(200, 200, 400, 400);
    canvas.drawRegion(region);
    canvas.detachPen();
  }
}

constructor²⁰⁺

constructor(region: Region)

Copies a Region object.

System capability: SystemCapability.Graphics.Drawing

Parameters

Name	Type	Mandatory	Description
region	Region	Yes	Region to be copied.

Example

import { RenderNode } from '@kit.ArkUI';
import { drawing } from '@kit.ArkGraphics2D';

class DrawingRenderNode extends RenderNode {
  draw(context: DrawContext) {
    const canvas = context.canvas;
    const pen = new drawing.Pen();
    pen.setColor({
      alpha: 255,
      red: 255,
      green: 0,
      blue: 0
    });
    pen.setStrokeWidth(10);
    canvas.attachPen(pen);
    let region = new drawing.Region();
    region.setRect(200, 200, 400, 400);
    let region2 = new drawing.Region(region);
    canvas.drawRegion(region2);
    canvas.detachPen();
  }
}

constructor²⁰⁺

constructor(left: number, top: number, right: number, bottom: number)

Constructs a rectangular region.

System capability: SystemCapability.Graphics.Drawing

Parameters

Name	Type	Mandatory	Description
left	number	Yes	Left position of the rectangle (X coordinate of the upper left corner). The value must be an integer. 0 indicates the coordinate origin. A positive value places the point to the right of the coordinate origin, while a negative value places the point to the left.
top	number	Yes	Top position of the rectangle (Y coordinate of the upper left corner). The value must be an integer. 0 indicates the coordinate origin. A positive value places the point below the coordinate origin, while a negative value places the point above the coordinate origin.
right	number	Yes	Right position of the rectangle (X coordinate of the lower right corner). The value must be an integer. 0 indicates the coordinate origin. A positive value places the point to the right of the coordinate origin, while a negative value places the point to the left.
bottom	number	Yes	Bottom position of the rectangle (Y coordinate of the lower right corner). The value must be an integer. 0 indicates the coordinate origin. A positive value places the point below the coordinate origin, while a negative value places the point above the coordinate origin.

Example

import { RenderNode } from '@kit.ArkUI';
import { drawing } from '@kit.ArkGraphics2D';

class DrawingRenderNode extends RenderNode {
  draw(context: DrawContext) {
    const canvas = context.canvas;
    const pen = new drawing.Pen();
    pen.setColor({
      alpha: 255,
      red: 255,
      green: 0,
      blue: 0
    });
    pen.setStrokeWidth(10);
    canvas.attachPen(pen);
    let region = new drawing.Region(100, 100, 200, 200);
    canvas.drawRegion(region);
    canvas.detachPen();
  }
}

isEqual²⁰⁺

isEqual(other: Region): boolean

Checks whether another region is equal to this region.

System capability: SystemCapability.Graphics.Drawing

Parameters

Name	Type	Mandatory	Description
other	Region	Yes	Region object.

Returns

Type	Description
boolean	Check result. true if the source rectangle is equal to the destination rectangle; false otherwise.

Example

import { RenderNode } from '@kit.ArkUI';
import { drawing } from '@kit.ArkGraphics2D';

class DrawingRenderNode extends RenderNode {
  draw(context: DrawContext) {
    const canvas = context.canvas;
    const pen = new drawing.Pen();
    pen.setColor({
      alpha: 255,
      red: 255,
      green: 0,
      blue: 0
    });
    pen.setStrokeWidth(10);
    canvas.attachPen(pen);
    let region = new drawing.Region();
    let other = new drawing.Region();
    region.setRect(100, 100, 400, 400);
    other.setRect(150, 150, 250, 250);
    let flag: boolean = false;
    flag = region.isEqual(other);
    console.info('flag: ', flag);
    canvas.drawRegion(region);
    canvas.drawRegion(other);
    canvas.detachPen();
  }
}

isComplex²⁰⁺

isComplex(): boolean

Checks whether this region contains multiple rectangles.

System capability: SystemCapability.Graphics.Drawing

Returns

Type	Description
boolean	Check result. true means yes; false otherwise.

Example

import { drawing } from '@kit.ArkGraphics2D';
import { RenderNode } from '@kit.ArkUI';

class DrawingRenderNode extends RenderNode {
  draw(context: DrawContext) {
    const canvas = context.canvas;
    const pen = new drawing.Pen();
    pen.setColor({
      alpha: 255,
      red: 255,
      green: 0,
      blue: 0
    });
    pen.setStrokeWidth(10);
    canvas.attachPen(pen);
    let region = new drawing.Region();
    let other = new drawing.Region();
    region.setRect(100, 100, 200, 200);
    region.op(new drawing.Region(220, 200, 280, 280), drawing.RegionOp.UNION);
    let flag: boolean = false;
    flag = region.isComplex();
    console.info('flag :', flag);
    canvas.drawRegion(region);
    canvas.drawRegion(other);
    canvas.detachPen();
  }
}

isEmpty²⁰⁺

isEmpty(): boolean

Checks whether the existing region is empty.

System capability: SystemCapability.Graphics.Drawing

Returns

Type	Description
boolean	Check result. true means yes; false otherwise.

Example

import { RenderNode } from '@kit.ArkUI';
import { drawing } from '@kit.ArkGraphics2D';

class DrawingRenderNode extends RenderNode {
  draw(context: DrawContext) {
    const canvas = context.canvas;
    const pen = new drawing.Pen();
    pen.setColor({
      alpha: 255,
      red: 255,
      green: 0,
      blue: 0
    });
    pen.setStrokeWidth(10);
    canvas.attachPen(pen);
    let region = new drawing.Region();
    let flag: boolean = region.isEmpty();
    console.info('flag: ', flag);
    region.setRect(100, 100, 400, 400);
    flag = region.isEmpty();
    console.info('flag: ', flag);
    canvas.drawRegion(region);
    canvas.detachPen();
  }
}

getBounds²⁰⁺

getBounds(): common2D.Rect

Obtains the boundaries of the existing region.

System capability: SystemCapability.Graphics.Drawing

Returns

Type	Description
common2D.Rect	Bounding rectangle of this region.

Example

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

let region = new drawing.Region();
let rect = region.getBounds();

getBoundaryPath²⁰⁺

getBoundaryPath(): Path

Obtains a new path that is the boundary of the existing region.

System capability: SystemCapability.Graphics.Drawing

Returns

Type	Description
Path	Path of the boundary of the existing region.

Example

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

let region = new drawing.Region();
let path = region.getBoundaryPath();

isPointContained¹²⁺

isPointContained(x: number, y: number) : boolean

Checks whether a point is contained in this region.

System capability: SystemCapability.Graphics.Drawing

Parameters

Name	Type	Mandatory	Description
x	number	Yes	X coordinate of the point. The value must be an integer. If a decimal is passed in, the decimal part is rounded off.
y	number	Yes	Y coordinate of the point. The value must be an integer. If a decimal is passed in, the decimal part is rounded off.

Returns

Type	Description
boolean	Check result. true means yes; false otherwise.

Error codes

For details about the error codes, see Universal Error Codes.

ID	Error Message
401	Parameter error.Possible causes:1.Mandatory parameters are left unspecified;2.Incorrect parameter types.

Example

import { RenderNode } from '@kit.ArkUI';
import { drawing } from '@kit.ArkGraphics2D';

class DrawingRenderNode extends RenderNode {
  draw(context: DrawContext) {
    const canvas = context.canvas;
    const pen = new drawing.Pen();
    pen.setColor({
      alpha: 255,
      red: 255,
      green: 0,
      blue: 0
    });
    pen.setStrokeWidth(10);
    canvas.attachPen(pen);
    let region = new drawing.Region();
    region.setRect(100, 100, 400, 400);
    let flag: boolean = false;
    flag = region.isPointContained(200, 200);
    console.info("region isPointContained : " + flag);
    canvas.drawPoint(200, 200);
    canvas.drawRegion(region);
    canvas.detachPen();
  }
}

offset²⁰⁺

offset(dx: number, dy: number): void

Translates a region.

System capability: SystemCapability.Graphics.Drawing

Parameters

Name	Type	Mandatory	Description
dx	number	Yes	X offset. A positive number indicates an offset towards the positive direction of the X axis, and a negative number indicates an offset towards the negative direction of the X axis. The value is an integer.
dy	number	Yes	Y offset. A positive number indicates an offset towards the positive direction of the Y axis, and a negative number indicates an offset towards the negative direction of the Y axis. The value is an integer.

Example

import { RenderNode } from '@kit.ArkUI';
import { drawing } from '@kit.ArkGraphics2D';

class DrawingRenderNode extends RenderNode {
  draw(context: DrawContext) {
    const canvas = context.canvas;
    const pen = new drawing.Pen();
    pen.setColor({
      alpha: 255,
      red: 255,
      green: 0,
      blue: 0
    });
    pen.setStrokeWidth(10);
    canvas.attachPen(pen);
    let region = new drawing.Region();
    region.setRect(100, 100, 400, 400);
    region.offset(10, 20);
    canvas.drawPoint(200, 200);
    canvas.drawRegion(region);
    canvas.detachPen();
  }
}

isRegionContained¹²⁺

isRegionContained(other: Region) : boolean

Checks whether another region is contained in this region.

System capability: SystemCapability.Graphics.Drawing

Parameters

Name	Type	Mandatory	Description
other	Region	Yes	Region object.

Returns

Type	Description
boolean	Check result. true means yes; false otherwise.

Error codes

For details about the error codes, see Universal Error Codes.

ID	Error Message
401	Parameter error.Possible causes:1.Mandatory parameters are left unspecified;2.Incorrect parameter types.

Example

import { RenderNode } from '@kit.ArkUI';
import { drawing } from '@kit.ArkGraphics2D';

class DrawingRenderNode extends RenderNode {
  draw(context: DrawContext) {
    const canvas = context.canvas;
    const pen = new drawing.Pen();
    pen.setColor({
      alpha: 255,
      red: 255,
      green: 0,
      blue: 0
    });
    pen.setStrokeWidth(10);
    canvas.attachPen(pen);
    let region = new drawing.Region();
    let other = new drawing.Region();
    region.setRect(100, 100, 400, 400);
    other.setRect(150, 150, 250, 250);
    let flag: boolean = false;
    flag = region.isRegionContained(other);
    console.info("region isRegionContained : " + flag);
    canvas.drawRegion(region);
    canvas.drawRegion(other);
    canvas.detachPen();
  }
}

op¹²⁺

op(region: Region, regionOp: RegionOp) : boolean

Performs an operation on this region and another region, and stores the resulting region in this Region object.

System capability: SystemCapability.Graphics.Drawing

Parameters

Name	Type	Mandatory	Description
region	Region	Yes	Region object.
regionOp	RegionOp	Yes	Operation mode of the region.

Returns

Type	Description
boolean	Check result. The value true means that the resulting region is stored in the current Region object, and false means the opposite.

Error codes

For details about the error codes, see Universal Error Codes.

ID	Error Message
401	Parameter error.Possible causes:1.Mandatory parameters are left unspecified;2.Incorrect parameter types.

Example

import { RenderNode } from '@kit.ArkUI';
import { drawing } from '@kit.ArkGraphics2D';

class DrawingRenderNode extends RenderNode {
  draw(context: DrawContext) {
    const canvas = context.canvas;
    const pen = new drawing.Pen();
    pen.setColor({
      alpha: 255,
      red: 255,
      green: 0,
      blue: 0
    });
    pen.setStrokeWidth(10);
    canvas.attachPen(pen);
    let region = new drawing.Region();
    region.setRect(200, 200, 400, 400);
    let othregion = new drawing.Region();
    othregion.setRect(110, 110, 240, 240);
    let flag: boolean = false;
    flag = region.op(othregion, drawing.RegionOp.REPLACE);
    console.info("region op : " + flag);
    canvas.drawRegion(region);
    canvas.detachPen();
  }
}

quickReject¹²⁺

quickReject(left: number, top: number, right: number, bottom: number) : boolean

Checks whether a rectangle do not intersect with this region. Actually, this API determines whether the rectangle does not intersect with the bounding rectangle of the region, and therefore the result may not be accurate.

System capability: SystemCapability.Graphics.Drawing

Parameters

Name	Type	Mandatory	Description
left	number	Yes	Left position of the rectangle. The value must be an integer. If a decimal is passed in, the decimal part is rounded off.
top	number	Yes	Top position of the rectangle. The value must be an integer. If a decimal is passed in, the decimal part is rounded off.
right	number	Yes	Right position of the rectangle. The value must be an integer. If a decimal is passed in, the decimal part is rounded off.
bottom	number	Yes	Bottom position of the rectangle. The value must be an integer. If a decimal is passed in, the decimal part is rounded off.

Returns

Type	Description
boolean	Check result. true means that the two do not intersect; false otherwise.

Error codes

For details about the error codes, see Universal Error Codes.

ID	Error Message
401	Parameter error.Possible causes:1.Mandatory parameters are left unspecified;2.Incorrect parameter types.

Example

import { RenderNode } from '@kit.ArkUI';
import { drawing } from '@kit.ArkGraphics2D';

class DrawingRenderNode extends RenderNode {
  draw(context: DrawContext) {
    const canvas = context.canvas;
    const pen = new drawing.Pen();
    pen.setColor({
      alpha: 255,
      red: 255,
      green: 0,
      blue: 0
    });
    pen.setStrokeWidth(10);
    canvas.attachPen(pen);
    let region = new drawing.Region();
    region.setRect(100, 100, 400, 400);
    let flag: boolean = false;
    flag = region.quickReject(50, 50, 70, 70);
    console.info("region quickReject : " + flag);
    canvas.drawRegion(region);
    canvas.detachPen();
  }
}

quickRejectRegion²⁰⁺

quickRejectRegion(region: Region): boolean

Checks whether the existing region does not intersect with another region. Actually, the outer rectangles of the two regions are compared to determine whether they do not intersect. Therefore, there may be an error.

System capability: SystemCapability.Graphics.Drawing

Parameters

Name	Type	Mandatory	Description
region	Region	Yes	Region object.

Returns

Type	Description
boolean	Check result. true if the regions do not intersect; false otherwise. The value true is returned only if the regions intersect with each other by point or edge.

Example

import { RenderNode } from '@kit.ArkUI';
import { drawing } from '@kit.ArkGraphics2D';

class DrawingRenderNode extends RenderNode {
  draw(context: DrawContext) {
    const canvas = context.canvas;
    const pen = new drawing.Pen();
    pen.setColor({
      alpha: 255,
      red: 255,
      green: 0,
      blue: 0
    });
    pen.setStrokeWidth(10);
    canvas.attachPen(pen);
    let region = new drawing.Region();
    let region2 = new drawing.Region();
    region2.setRect(100, 100, 400, 400);
    let flag: boolean = false;
    flag = region.quickRejectRegion(region2);
    console.info("region quickRejectRegion: " + flag);
    canvas.drawRegion(region);
    canvas.detachPen();
  }
}

setPath¹²⁺

setPath(path: Path, clip: Region) : boolean

Sets a region that matches the outline of a path within the cropping area.

System capability: SystemCapability.Graphics.Drawing

Parameters

Name	Type	Mandatory	Description
path	Path	Yes	Path object.
clip	Region	Yes	Region object.

Returns

Type	Description
boolean	Result of the setting operation. The value true is returned if the corked status is successfully set; otherwise, false is returned.

Error codes

For details about the error codes, see Universal Error Codes.

ID	Error Message
401	Parameter error.Possible causes:1.Mandatory parameters are left unspecified;2.Incorrect parameter types.

Example

import { RenderNode } from '@kit.ArkUI';
import { drawing } from '@kit.ArkGraphics2D';

class DrawingRenderNode extends RenderNode {
  draw(context: DrawContext) {
    const canvas = context.canvas;
    const pen = new drawing.Pen();
    pen.setColor({
      alpha: 255,
      red: 255,
      green: 0,
      blue: 0
    });
    pen.setStrokeWidth(10);
    canvas.attachPen(pen);
    let region = new drawing.Region();
    let path = new drawing.Path();
    region.setRect(100, 100, 400, 400);
    path.arcTo(50, 50, 300, 300, 0, 359);
    let flag: boolean = false;
    flag = region.setPath(path, region);
    console.info("region setPath : " + flag);
    canvas.drawRegion(region);
    canvas.detachPen();
  }
}

setRegion²⁰⁺

setRegion(region: Region): void

Sets the existing region to another region.

System capability: SystemCapability.Graphics.Drawing

Parameters

Name	Type	Mandatory	Description
region	Region	Yes	Region to be set.

Example

import { RenderNode } from '@kit.ArkUI';
import { drawing } from '@kit.ArkGraphics2D';

class DrawingRenderNode extends RenderNode {
  draw(context: DrawContext) {
    const canvas = context.canvas;
    const pen = new drawing.Pen();
    pen.setColor({
      alpha: 255,
      red: 255,
      green: 0,
      blue: 0
    });
    pen.setStrokeWidth(10);
    canvas.attachPen(pen);
    let region = new drawing.Region();
    region.setRect(100, 100, 200, 200);
    let region2 = new drawing.Region();
    region2.setRegion(region);
    canvas.drawRegion(region2);
    canvas.detachPen();
  }
}

setEmpty²⁰⁺

setEmpty(): void

Set the existing region to empty.

System capability: SystemCapability.Graphics.Drawing

Example

import { RenderNode } from '@kit.ArkUI';
import { drawing } from '@kit.ArkGraphics2D';

class DrawingRenderNode extends RenderNode {
  draw(context: DrawContext) {
    let region = new drawing.Region();
    region.setRect(100, 100, 200, 200);
    let isEmpty = region.isEmpty();
    console.info("isEmpty :" + isEmpty);
    region.setEmpty();
    isEmpty = region.isEmpty();
    console.info("isEmpty :" + isEmpty);
  }
}

setRect¹²⁺

setRect(left: number, top: number, right: number, bottom: number) : boolean

Sets a rectangle.

System capability: SystemCapability.Graphics.Drawing

Parameters

Name	Type	Mandatory	Description
left	number	Yes	Left position of the rectangle. The value must be an integer. If a decimal is passed in, the decimal part is rounded off.
top	number	Yes	Top position of the rectangle. The value must be an integer. If a decimal is passed in, the decimal part is rounded off.
right	number	Yes	Right position of the rectangle. The value must be an integer. If a decimal is passed in, the decimal part is rounded off.
bottom	number	Yes	Bottom position of the rectangle. The value must be an integer. If a decimal is passed in, the decimal part is rounded off.

Returns

Type	Description
boolean	Result of the setting operation. The value true means that the setting is successful, and false means the opposite.

Error codes

For details about the error codes, see Universal Error Codes.

ID	Error Message
401	Parameter error.Possible causes:1.Mandatory parameters are left unspecified;2.Incorrect parameter types.

Example

import { RenderNode } from '@kit.ArkUI';
import { drawing } from '@kit.ArkGraphics2D';

class DrawingRenderNode extends RenderNode {
  draw(context: DrawContext) {
    const canvas = context.canvas;
    const pen = new drawing.Pen();
    pen.setColor({
      alpha: 255,
      red: 255,
      green: 0,
      blue: 0
    });
    pen.setStrokeWidth(10);
    canvas.attachPen(pen);
    let region = new drawing.Region();
    let flag: boolean = false;
    flag = region.setRect(50, 50, 300, 300);
    console.info("region setRect : " + flag);
    canvas.drawRegion(region);
    canvas.detachPen();
  }
}

isRect²³⁺

isRect(): boolean

Checks whether this region is the same as a single rectangle.

Model restriction: This API can be used only in the stage model.

System capability: SystemCapability.Graphics.Drawing

Returns

Type	Description
boolean	Check result. true if this region is the same as a single rectangle; false otherwise.

Example

import { drawing } from '@kit.ArkGraphics2D';
import { RenderNode } from '@kit.ArkUI';

class DrawingRenderNode extends RenderNode {
  draw(context: DrawContext) {
    const canvas = context.canvas;
    const pen = new drawing.Pen();
    pen.setColor({
      alpha: 255,
      red: 255,
      green: 0,
      blue: 0
    });
    pen.setStrokeWidth(10);
    canvas.attachPen(pen);
    let region = new drawing.Region();
    let flag: boolean = false;
    flag = region.isRect();
    console.info('flag :', flag);
    region.setRect(100, 100, 200, 200);
    flag = region.isRect();
    console.info('flag :', flag);
    let other = new drawing.Region(220, 200, 280, 280);
    region.op(other, drawing.RegionOp.UNION);
    flag = region.isRect();
    console.info('flag :', flag);
    canvas.drawRegion(region);
    canvas.detachPen();
  }
}

quickContains²³⁺

quickContains(left: number, top: number, right: number, bottom: number): boolean

Checks whether this region is the same as a single rectangle and contains the specified rectangle.

Model restriction: This API can be used only in the stage model.

System capability: SystemCapability.Graphics.Drawing

Parameters

Name	Type	Mandatory	Description
left	number	Yes	Left position of the rectangle. The value must be an integer. If a decimal is passed in, the decimal part is rounded off.
top	number	Yes	Top position of the rectangle. The value must be an integer. If a decimal is passed in, the decimal part is rounded off.
right	number	Yes	Right position of the rectangle. The value must be an integer. If a decimal is passed in, the decimal part is rounded off.
bottom	number	Yes	Bottom position of the rectangle. The value must be an integer. If a decimal is passed in, the decimal part is rounded off.

Returns

Type	Description
boolean	Check result. true if the current region is the same as a single rectangle and contains the specified rectangle; false otherwise.

Example

import { drawing } from '@kit.ArkGraphics2D';
import { RenderNode } from '@kit.ArkUI';

class DrawingRenderNode extends RenderNode {
  draw(context: DrawContext) {
    const canvas = context.canvas;
    const pen = new drawing.Pen();
    pen.setColor({
      alpha: 255,
      red: 255,
      green: 0,
      blue: 0
    });
    pen.setStrokeWidth(10);
    canvas.attachPen(pen);
    let region = new drawing.Region();
    let flag: boolean = false;
    flag = region.quickContains(10, 10, 100, 100);
    console.info('flag :', flag);
    let other = new drawing.Region();
    other.setRect(100, 100, 200, 200);
    flag = other.quickContains(10, 10, 100, 100);
    console.info('flag :', flag);
    canvas.drawRegion(region);
    canvas.drawRegion(other);
    canvas.detachPen();
  }
}

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Class (Region)

Modules to Import

constructor²⁰⁺

constructor²⁰⁺

constructor²⁰⁺

isEqual²⁰⁺

isComplex²⁰⁺

isEmpty²⁰⁺

getBounds²⁰⁺

getBoundaryPath²⁰⁺

isPointContained¹²⁺

offset²⁰⁺

isRegionContained¹²⁺

op¹²⁺

quickReject¹²⁺

quickRejectRegion²⁰⁺

setPath¹²⁺

setRegion²⁰⁺

setEmpty²⁰⁺

setRect¹²⁺

isRect²³⁺

quickContains²³⁺

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Class (Region)

Modules to Import

constructor20+

constructor20+

constructor20+

isEqual20+

isComplex20+

isEmpty20+

getBounds20+

getBoundaryPath20+

isPointContained12+

offset20+

isRegionContained12+

op12+

quickReject12+

quickRejectRegion20+

setPath12+

setRegion20+

setEmpty20+

setRect12+

isRect23+

quickContains23+

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constructor²⁰⁺

constructor²⁰⁺

constructor²⁰⁺

isEqual²⁰⁺

isComplex²⁰⁺

isEmpty²⁰⁺

getBounds²⁰⁺

getBoundaryPath²⁰⁺

isPointContained¹²⁺

offset²⁰⁺

isRegionContained¹²⁺

op¹²⁺

quickReject¹²⁺

quickRejectRegion²⁰⁺

setPath¹²⁺

setRegion²⁰⁺

setEmpty²⁰⁺

setRect¹²⁺

isRect²³⁺

quickContains²³⁺