[mxcad_2d API documentation] (../README. md)/[2d] (../modules/2d. md)/McGeDoubleArray

Class: McGeDoubleArray

2d.McGeDoubleArray

McGeDoubleArray represents an array container of double precision floating-point numbers.

Description

This class is used to store and process floating-point sets, commonly used in numerical sampling, coordinate value caching Transform parameters and other scenarios that require continuous floating-point data.

Example

import { McGeDoubleArray } from "mxcad";

const values = new McGeDoubleArray();
values.append(1.2);
values.append(3.4);
values.append(5.6);

console.log(values.at(1)); //Obtain the value of the first index position;
console.log(values.length()); //Obtain the length of the array;

Table of contents

Constructors

• constructor

Properties

• imp

Methods

• append
• at
• clear
• copy
• forEach
• length
• setAt

Constructors

constructor

• new McGeDoubleArray(imp?, isDestroyImp?)

Constructor.

Parameters

Name	Type	Description
imp?	` Object	Internal implementation object
isDestroyImp?	boolean	-

Properties

imp

• imp: any

Internal implementation object

Methods

append

▸ append(val): void

Add a value

Parameters

Name	Type	Description
Val	number	Double precision floating-point number

Returns

void

---

at

▸ at(index): number

Retrieve the values of data elements through array indexing

Parameters

Name	Type	Description
Index	number	array index

Returns

number

---

clear

▸ clear(): void

Clear the array

Returns

void

---

copy

▸ copy(val): McGeDoubleArray

Copy the value of the object

Parameters

Name	Type	Description
Val	[McGeDoubleArray] (2d. McGeDoubleArray. md)	Double precision floating-point array

Returns

McGeDoubleArray

Example

import { McGeDoubleArray } from "mxcad"

//Array1 represents a double precision floating-point array
 const array2 = new McGeDoubleArray();
 array2.copy(array1);

//Now array2 and array1 have the same value

---

forEach

▸ forEach(call): void

Traverse the array

Parameters

Name	Type	Description
Call	(val: number, index: number)=>void	callback function

Returns

void

Example

import { McGeDoubleArray } from "mxcad"

  const array = new McGeDoubleArray();
  array.append(3.14159);
  array.forEach((val,index)=>{
    console.log(`Value at index ${index}: ${value}`);
  })

---

length

▸ length(): number

Return the length of the array

Returns

number

Array length

---

setAt

▸ setAt(index, val): void

Set the value of data elements through array indexing

Parameters

Name	Type	Description
index	number	-
Val	number	Double precision floating-point number

Returns

void

Example

import { McGeDoubleArray } from "mxcad"

  const array = new McGeDoubleArray();
array.setAt(1, 3.14159); //  Set the value of the position with index 1 to 3.14159