[Home](./index.md) > [rc-js-util](./rc-js-util.md) > [Margin2d](./rc-js-util.margin2d.md) ## Margin2d class 2x2 matrix representing margins on a rectangle. **Signature:** ```typescript export declare abstract class Margin2d extends Mat2 ``` **Extends:** [Mat2](./rc-js-util.mat2.md)<TArray> ## Remarks See static properties for constructors. Instances are not an extension of this class, but of the static members. ## Properties

Property	Modifiers	Type	Description
["0"](./rc-js-util.margin2d._0_.md)		number	left
["1"](./rc-js-util.margin2d._1_.md)		number	bottom
["2"](./rc-js-util.margin2d._2_.md)		number	right
["3"](./rc-js-util.margin2d._3_.md)		number	top
[constructor](./rc-js-util.margin2d.constructor.md)		[IMargin2dCtor](./rc-js-util.imargin2dctor.md)<TArray>
[constructors](./rc-js-util.margin2d.constructors.md)	`protected` `static`	Map<import("../../t-typed-array-ctor.js").[TFullSetTypedArrayCtor](./rc-js-util.tfullsettypedarrayctor.md), Function>
[f32](./rc-js-util.margin2d.f32.md)	`static`	[IMargin2dCtor](./rc-js-util.imargin2dctor.md)<Float32Array>
[f64](./rc-js-util.margin2d.f64.md)	`static`	[IMargin2dCtor](./rc-js-util.imargin2dctor.md)<Float64Array>
[i16](./rc-js-util.margin2d.i16.md)	`static`	[IMargin2dCtor](./rc-js-util.imargin2dctor.md)<Int16Array>
[i32](./rc-js-util.margin2d.i32.md)	`static`	[IMargin2dCtor](./rc-js-util.imargin2dctor.md)<Int32Array>
[i64](./rc-js-util.margin2d.i64.md)	`static`	null
[i8](./rc-js-util.margin2d.i8.md)	`static`	[IMargin2dCtor](./rc-js-util.imargin2dctor.md)<Int8Array>
[TTypeGuardAMargin2d](./rc-js-util.margin2d.ttypeguardamargin2d.md)		true
[u16](./rc-js-util.margin2d.u16.md)	`static`	[IMargin2dCtor](./rc-js-util.imargin2dctor.md)<Uint16Array>
[u32](./rc-js-util.margin2d.u32.md)	`static`	[IMargin2dCtor](./rc-js-util.imargin2dctor.md)<Uint32Array>
[u64](./rc-js-util.margin2d.u64.md)	`static`	null
[u8](./rc-js-util.margin2d.u8.md)	`static`	[IMargin2dCtor](./rc-js-util.imargin2dctor.md)<Uint8Array>
[u8c](./rc-js-util.margin2d.u8c.md)	`static`	[IMargin2dCtor](./rc-js-util.imargin2dctor.md)<Uint8ClampedArray>

## Methods

Method	Modifiers	Description
[castToBaseType()](./rc-js-util.margin2d.casttobasetype.md)		Although the typed array tuples extend a typed array, they are not structurally compatible. This function returns the argument passed without modification but cast as the underlying storage type, e.g. Float32Array.
[copyFromBuffer(\_memoryDataView, \_pointer, \_littleEndian)](./rc-js-util.margin2d.copyfrombuffer.md)		If endianness is not supplied the platform's endianness will be used.
[copyToBuffer(\_memoryDataView, \_pointer, \_littleEndian)](./rc-js-util.margin2d.copytobuffer.md)		If endianness is not supplied the platform's endianness will be used.
[getBottom()](./rc-js-util.margin2d.getbottom.md)
[getCtor(ctor)](./rc-js-util.margin2d.getctor.md)	`static`
[getInnerRange(\_range, \_result)](./rc-js-util.margin2d.getinnerrange.md)
[getLeft()](./rc-js-util.margin2d.getleft.md)
[getRight()](./rc-js-util.margin2d.getright.md)
[getTop()](./rc-js-util.margin2d.gettop.md)
[mat3TransformLength(\_mat, \_writeTo)](./rc-js-util.margin2d.mat3transformlength.md)		Applies `Mat3.getTransformedXLength` `Mat3.getTransformedYLength` with a minimum of 0 and a maximum of whatever the margin is.
[setBottom(\_value)](./rc-js-util.margin2d.setbottom.md)
[setLeft(\_value)](./rc-js-util.margin2d.setleft.md)
[setRight(\_value)](./rc-js-util.margin2d.setright.md)
[setTop(\_value)](./rc-js-util.margin2d.settop.md)
[sumX()](./rc-js-util.margin2d.sumx.md)
[sumY()](./rc-js-util.margin2d.sumy.md)
[update(\_args)](./rc-js-util.margin2d.update.md)