[mxcad_2d API documentation] (../README. md)/[mapbox] (../modules/mapbox. md)/MxMap

Class: MxMap

mapbox.MxMap

Mapbox map and CAD coordinate system bridging class, used to convert map coordinates and CAD drawing coordinates to each other.

Description

MxMap is a bridging object used to connect Mapbox maps and MxCAD/AutoCAD coordinate systems, mainly used for collaborative work with CAD drawings in geographic map scenes. It is capable of completing: -Bind Mapbox map instance; -Convert between latitude and longitude, Mercator coordinates, and CAD coordinates; -Handling map scaling and aligning CAD coordinate systems; -Generate custom map layers using the creat() method and integrate them into the CAD rendering environment; -Adapt to the creation methods of old and new versions of maps.

Usage:

1. Instantiate MxMap and choose to pass in an existing McObject;
2. Call setCoordinatePointAlign() to set the relationship between the map origin and CAD origin;
3. Bind the mapbox instance through initMapbox();
4. Call create (map, config) to start the integrated rendering of the map and CAD;
5. Use methods such as lnglatToCAD() and mercatorCoord2CAD() to perform coordinate transformation.

Summary: MxMap is a core tool that connects map geographic coordinates with CAD drawing coordinates, suitable for collaborative display scenarios of geographic information, map positioning, surveying data, and engineering drawings.

Table of contents

Constructors

• constructor

Properties

• mxcad

Methods

• cadLongToMercatorCoord
• cadToMercatorCoord
• cadTolnglat
• create
• getMapbox
• getMxDrawObject
• initMapbox
• lnglatToCAD
• lnglat_to_mercator
• map_lnglat_to_meters
• map_meters_to_lnglat
• mercatorCoord2CAD
• mercatorCoordToCAD
• mercator_to_lnglat
• outOfChina
• setCoordinatePointAlignment
• setLoadOldEditionMethod

Constructors

constructor

• new MxMap(inMxcad?)

Parameters

Name	Type
inMxcad?	McObject

Properties

mxcad

• mxcad: McObject

MXCAD object

Methods

cadLongToMercatorCoord

▸ cadLongToMercatorCoord(len): number

Convert longitude coordinates to coordinates under Mercator projection

Parameters

Name	Type	Description
Len	number	longitude

Returns

number

Coordinates under Mercator projection

---

cadToMercatorCoord

▸ cadToMercatorCoord(pt): Vector3

CAD to Mapbox Mercator Coordinate System

Parameters

Name	Type	Description
Pt	Vector3	3D point object

Returns

Vector3

3D point object

---

cadTolnglat

▸ cadTolnglat(pt): number[]

Convert CAD coordinates to longitude and latitude

Parameters

Name	Type	Description
Pt	Vector3	3D point object

Returns

number[]

Latitude and longitude

---

create

▸ create(map, config): Promise<void>

Create a map

Parameters

Name	Type	Description
Map	any	map object
config	any	-

Returns

Promise<void>

---

getMapbox

▸ getMapbox(): any

Get the map object of mapbox

Returns

any

Map object

---

getMxDrawObject

▸ getMxDrawObject(): MxDrawObject

Retrieve the current mxdraw object

Returns

MxDrawObject

Mxdraw object

---

initMapbox

▸ initMapbox(map): void

Initialize mapbox

Parameters

Name	Type	Description
Map	any	map object

Returns

void

---

lnglatToCAD

▸ lnglatToCAD(lng, lat): Vector3

From latitude and longitude to CAD coordinates

Parameters

Name	Type	Description
Lng	number	longitude
Lat	number	latitude

Returns

Vector3

3D point object

---

lnglat_to_mercator

▸ lnglat_to_mercator(lng, lat): Vector3

Coordinate from latitude and longitude to the Mercator coordinate system of Mapbox

Parameters

Name	Type	Description
Lng	number	longitude
Lat	number	dimension

Returns

Vector3

3D point object

---

map_lnglat_to_meters

▸ map_lnglat_to_meters(lng, lat): number[]

Convert the coordinates (longitude and latitude) in the geographic coordinate system to the coordinates (meters) in the planar coordinate system

Parameters

Name	Type	Description
Lng	number	longitude
Lat	number	dimension

Returns

number[]

Plane coordinates

---

map_meters_to_lnglat

▸ map_meters_to_lnglat(x, y): number[]

Map Mercator coordinate system to latitude and longitude

Parameters

Name	Type	Description
X	number	X-axis coordinate
Y	number	Y-axis coordinate

Returns

number[]

Latitude and longitude

---

mercatorCoord2CAD

▸ mercatorCoord2CAD(x, y): Vector3

MAPBOX's Mercator Coordinate System to CAD

Parameters

Name	Type	Description
X	number	X-axis coordinate
Y	number	Y-axis coordinate

Returns

Vector3

3D point object

---

mercatorCoordToCAD

▸ mercatorCoordToCAD(x, y): Vector3

MAPBOX's Mercator Coordinate System to CAD

Parameters

Name	Type	Description
X	number	X-axis coordinate
Y	number	Y-axis coordinate

Returns

Vector3

3D point object

---

mercator_to_lnglat

▸ mercator_to_lnglat(x, y, z): number[]

Mapbox's Mercator coordinate system to latitude and longitude

Parameters

Name	Type	Description
X	number	X-axis coordinate
Y	number	Y-axis coordinate
Z	number	Z-axis coordinate

Returns

number[]

Latitude and longitude

---

outOfChina

▸ outOfChina(lng, lat): boolean

Is it beyond the scope of China

Parameters

Name	Type	Description
Lng	number	longitude
Lat	number	dimension

Returns

boolean

Boolean value

---

setCoordinatePointAlignment

▸ setCoordinatePointAlignment(originLngLatLike, originCAD, meterInCADUnits): void

Set the alignment method of coordinate points

Parameters

Name	Type	Description
OriginLngLatLike	number []	Origin coordinates of longitude and latitude
OriginCAD	number []	The starting point in the drawing coordinate system, which is the origin coordinate in AutoCAD
MeterInCADUnits	Number	Conversion between Geographic Coordinate Systems and Coordinate Units Used in AutoCAD Drawing

Returns

void

---

setLoadOldEditionMethod

▸ setLoadOldEditionMethod(): void

Used to set up loading of old version maps

Returns

void