Class BitmapColorScaleGL

位图的色例

export

Hierarchy

GridGLBaseStyle<IBitmapColorScaleFieldGLOptions>
- BitmapColorScaleGL

Index

Constructors

constructor

Properties

Methods

Constructors

constructor

new BitmapColorScaleGL(options: IBitmapColorScaleFieldGLOptions): BitmapColorScaleGL

Overrides GridGLBaseStyle.constructor
- Defined in src/core/grid.style.gl.ts:110
构建 BitmapColorScale

memberof
GLBitmapColorScale

Parameters
- options: IBitmapColorScaleFieldGLOptions
Returns BitmapColorScaleGL

Properties

colorScale

colorScale: TexImageSource

色例贴图

memberof: GLBitmapColorScale

max

max: number

最大值

memberof: GLBitmapColorScale

min

min: number

最小值

memberof: GLBitmapColorScale

Methods

clearCaches

clearCaches(): void

Inherited from GridGLBaseStyle.clearCaches
- Defined in src/core/style.ts:135
清空缓存

Returns void

getPlaneOptions

getPlaneOptions(sourceValue: any, cacheFirst?: boolean, values?: any[]): IBitmapColorScaleFieldGLOptions

Inherited from GridGLBaseStyle.getPlaneOptions
- Defined in src/core/style.ts:201
根据指定的feature获取当前样式对应的实际值

memberof
FeatureBaseClass

Parameters
- sourceValue: any
- cacheFirst: boolean = true
  
  默认优先从缓存中获取，如果缓存中没有找到，再进行更新。传入false进行强制更新。update方法被调用后会自动清空缓存。
- Optional values: any[]
  
  如果有多个数值，可以以数组传入，需要样式本身支持多数值。目前格点样式的字符串和数值字段可以通过配置中最后增加|来设置要使用的值的索引号。
Returns IBitmapColorScaleFieldGLOptions
{T}

isStyle

isStyle(): boolean

Inherited from GridGLBaseStyle.isStyle
- Defined in src/core/style.ts:117
表名当前的类是否是样式相关类。该类永远返回true

memberof
StyleBaseClass

Returns boolean

update

update(options: IBitmapColorScaleFieldGLOptions, reinit?: boolean): void

Inherited from GridGLBaseStyle.update
- Defined in src/core/style.ts:170
对当前样式对象使用新的参数进行更新

memberof
StyleBaseClass

Parameters
- options: IBitmapColorScaleFieldGLOptions
  
  新的参数
- reinit: boolean = false
Returns void

Static copyFromStopRules

copyFromStopRules(sr: IStopRulesOptions | StopRules, min: number, max: number, width: number, gradient: boolean, startIdx: number, endIdx: number, keepSourcePositions?: boolean, positions?: number[], height?: number): BitmapColorScaleGL

- Defined in src/core/grid.style.gl.ts:251
Parameters
- sr: IStopRulesOptions | StopRules
- min: number
- max: number
- width: number
- gradient: boolean
- startIdx: number
- endIdx: number
- Optional keepSourcePositions: boolean
- Optional positions: number[]
- height: number = 1
Returns BitmapColorScaleGL

Static create

create(min: number, max: number, width: number, gradient: boolean, colors: GridStaticColorFieldGL[], positions?: number[], height?: number): BitmapColorScaleGL

- Defined in src/core/grid.style.gl.ts:212
根据提供的参数动态创建一个bitmap色例

static
memberof
BitmapColorScaleGL

Parameters
- min: number
  
  最小值
- max: number
  
  最大值
- width: number
  
  色例宽度
- gradient: boolean
- colors: GridStaticColorFieldGL[]
  
  颜色表
- Optional positions: number[]
- height: number = 1
Returns BitmapColorScaleGL
{BitmapColorScaleGL}

Static createColorScale

createColorScale(width: number, gradient: boolean, colors: GridStaticColorFieldGL[], positions?: number[], height?: number): HTMLCanvasElement

- Defined in src/core/grid.style.gl.ts:161
根据提供的参数创建一个bitmap颜色贴图

static
memberof
BitmapColorScaleGL

Parameters
- width: number
  
  贴图宽度
- gradient: boolean
- colors: GridStaticColorFieldGL[]
  
  颜色表
- Optional positions: number[]
- height: number = 1
Returns HTMLCanvasElement
{HTMLCanvasElement}

Static createFromStopRules

createFromStopRules(sr: IStopRulesOptions | StopRules, width: number, gradient: boolean, startIdx: number, endIdx: number, height?: number): BitmapColorScaleGL

- Defined in src/core/grid.style.gl.ts:232
从颜色的分级规则创建一个bitmap色例

static
memberof
BitmapColorScaleGL

Parameters
- sr: IStopRulesOptions | StopRules
  
  颜色的分级规则
- width: number
  
  色例宽度
- gradient: boolean
  
  是否渐变
- startIdx: number
  
  开始的idx
- endIdx: number
  
  结束的idx
- height: number = 1
Returns BitmapColorScaleGL

Generated using TypeDoc