Class ScaleHelper

Util functions for d3 scales

Index

Constructors

Methods

createLinearTicks createLogTicks createMajorTicks createMinorTicks createTicks getDomainPixelSpan getDomainRatio getDomainSpan getPixelRatio getRangeSpan

Constructors

constructor

new ScaleHelper(): ScaleHelper
Returns ScaleHelper

Methods

`Static`createLinearTicks

createLinearTicks(scale: Scale, num?: number): ScaleHandlerTicks
Creates linear major and minor ticks
Parameters
- scale: Scale
- num: number = 10
Returns ScaleHandlerTicks
- Defined in utils/scale-helper.ts:108

`Static`createLogTicks

createLogTicks(scale: Scale): ScaleHandlerTicks
Creates logarithmic major and minor ticks for a log scale
Parameters
- scale: Scale
Returns ScaleHandlerTicks
- Defined in utils/scale-helper.ts:79

`Static`createMajorTicks

createMajorTicks(scale: Scale): ScaleHandlerTicks
Creates major ticks only
Parameters
- scale: Scale
Returns ScaleHandlerTicks
- Defined in utils/scale-helper.ts:134

`Private` `Static`createMinorTicks

createMinorTicks(v: number, steps: number, stepSize: number): number[]
Internal. Creates minor ticks based around a value, number of steps and step size
Parameters
- v: number
- steps: number
- stepSize: number
Returns number[]
- Defined in utils/scale-helper.ts:150

`Static`createTicks

createTicks(scale: Scale): ScaleHandlerTicks
Create major and minor ticks from scale
Parameters
- scale: Scale
Returns ScaleHandlerTicks
- Defined in utils/scale-helper.ts:166

`Static`getDomainPixelSpan

getDomainPixelSpan(scale: Scale, domain?: Domain): number
Get the domain span of a scale in pixels
Parameters
- scale: Scale
- Optionaldomain: Domain
Returns number
- Defined in utils/scale-helper.ts:55

`Static`getDomainRatio

getDomainRatio(scale: Scale): number
Get domain ratio from scale
Parameters
- scale: Scale
Returns number
- Defined in utils/scale-helper.ts:29

`Static`getDomainSpan

getDomainSpan(scale: Scale, absoluteValue?: boolean): number
Get the domain span of a scale
Parameters
- scale: Scale
- absoluteValue: boolean = true
Returns number
- Defined in utils/scale-helper.ts:44

`Static`getPixelRatio

getPixelRatio(scale: Scale): number
Get pixel ratio from scale
Parameters
- scale: Scale
Returns number
- Defined in utils/scale-helper.ts:14

`Static`getRangeSpan

getRangeSpan(scale: Scale): number
Get the range span of a scale in pixels
Parameters
- scale: Scale
Returns number
- Defined in utils/scale-helper.ts:69