import ComputeTools from 'kqwebmap-project/src/common/ComputeTools.js'

public class | source

ComputeTools

计算工具类

Static Method Summary

Static Public Methods
public static	degreeToMeters(d: Number): Number 转换“度”到“米”
public static	fullColorHex(r: Number, g: Number, b: Number): String 转换rgb到十六进制字符串
public static	getToMetersFromProj4(proj4: String): Number 获取单位转换到米的比率，即1米相当于多少个单位。
public static	getUnitFromProj4(proj4: String): String 根据proj4格式的字符串获取地图单位
public static	guid(): *
public static	meterToDegrees(m: Number): Number 转换“米”到“度”
public static	scrollBarWidth(): Number 获取滚动条的宽度
public static	stdScalesToResolutions(stdScale_array: Array, to_meters: Number, dpi: Number): Array 转换标准比例尺为resolutions，单位为meter / pixel

Static Public Methods

public static degreeToMeters(d: Number): Number source

转换“度”到“米”

Params:

Name	Type	Attribute	Description
d	Number		度数

Return:

Number

public static fullColorHex(r: Number, g: Number, b: Number): String source

转换rgb到十六进制字符串

Params:

Name	Type	Attribute	Description
r	Number		红色值
g	Number		绿色值
b	Number		蓝色值

Return:

String

public static getToMetersFromProj4(proj4: String): Number source

获取单位转换到米的比率，即1米相当于多少个单位。

Params:

Name	Type	Attribute	Description
proj4	String		proj4格式的字符串

Return:

Number

public static getUnitFromProj4(proj4: String): String source

根据proj4格式的字符串获取地图单位

Params:

Name	Type	Attribute	Description
proj4	String		proj4格式的字符串

Return:

String

'meter','degree','us-ft','other'

public static guid(): * source

Return:

public static meterToDegrees(m: Number): Number source

转换“米”到“度”

Params:

Name	Type	Attribute	Description
m	Number		米数

Return:

Number

public static scrollBarWidth(): Number source

获取滚动条的宽度

Return:

Number

public static stdScalesToResolutions(stdScale_array: Array, to_meters: Number, dpi: Number): Array source

转换标准比例尺为resolutions，单位为meter / pixel

Params:

Name	Type	Attribute	Description
stdScale_array	Array		标准比例尺数组
to_meters	Number		单位转为米的比率
dpi	Number		屏幕DPI

Return:

Array

resolution