Class LineChartRenderer

Created by Philipp Jahoda on 25/01/16.

Hierarchy (View Summary)

LineRadarRenderer
- LineChartRenderer

Constructors

constructor

new LineChartRenderer(
    chart: LineChart,
    animator: ChartAnimator,
    viewPortHandler: ViewPortHandler,
): LineChartRenderer
Parameters
- chart: LineChart
- animator: ChartAnimator
- viewPortHandler: ViewPortHandler
Returns LineChartRenderer
Overrides LineRadarRenderer.constructor
- Defined in packages/ui-chart/renderer/LineChartRenderer.d.ts:74

Properties

animator

animator: ChartAnimator

the animator object used to perform animations on the chart data

lastLinePath

lastLinePath: Path

`Protected`mBitmapCanvas

mBitmapCanvas: Canvas

on this canvas, the paths are rendered, it is initialized with the pathBitmap

mChart

mChart: LineChart

`Protected`mCirclePaintInner

mCirclePaintInner: Paint

palet for the inner circle of the value indicators

`Protected`mDrawBitmap

mDrawBitmap: WeakRef<ImageSource>

Bitmap object used for drawing the paths (otherwise they are too long if rendered directly on the canvas)

`Protected`mHighlightPaint

mHighlightPaint: Paint

palet used for highlighting values

`Protected`mRenderPaint

mRenderPaint: Paint

main palet object used for rendering

`Protected`mValuePaint

mValuePaint: Paint

palet object for drawing values (text representing values of chart entries)

`Protected`mViewPortHandler

mViewPortHandler: ViewPortHandler

the component that handles the drawing area of the chart and it's offsets

`Protected`mXBounds

mXBounds: XBounds

buffer for storing the current minimum and maximum visible x

`Protected` `Static`mFillPath

mFillPath: Path

Accessors

circlePaintInner

get circlePaintInner(): Paint
Returns Paint
- Defined in packages/ui-chart/renderer/LineChartRenderer.d.ts:75

`Protected`fillPath

get fillPath(): Path
Returns Path
- Defined in packages/ui-chart/renderer/LineChartRenderer.d.ts:69

highlightPaint

get highlightPaint(): Paint
Returns Paint
Inherited from LineRadarRenderer.highlightPaint
- Defined in packages/ui-chart/renderer/DataRenderer.d.ts:42

renderPaint

get renderPaint(): Paint
Returns Paint
Inherited from LineRadarRenderer.renderPaint
- Defined in packages/ui-chart/renderer/DataRenderer.d.ts:41

valuePaint

get valuePaint(): Paint
Returns Paint
Inherited from LineRadarRenderer.valuePaint
- Defined in packages/ui-chart/renderer/DataRenderer.d.ts:43

Methods

`Protected`applyValueTextStyle

applyValueTextStyle(set: IDataSet<any>): void
Applies the required styling (provided by the DataSet) to the value-paint object.
Parameters
- set: IDataSet<any>
Returns void
Inherited from LineRadarRenderer.applyValueTextStyle
- Defined in packages/ui-chart/renderer/DataRenderer.d.ts:51

`Protected`draw

draw(c: Canvas, dataSet: LineDataSet): boolean
Parameters
- c: Canvas
- dataSet: LineDataSet
Returns boolean
- Defined in packages/ui-chart/renderer/LineChartRenderer.d.ts:86

`Protected`drawCircles

drawCircles(c: Canvas): void
Parameters
- c: Canvas
Returns void
- Defined in packages/ui-chart/renderer/LineChartRenderer.d.ts:93

`Protected`drawCirclesForDataset

drawCirclesForDataset(c: Canvas, dataSet: LineDataSet): void
Parameters
- c: Canvas
- dataSet: LineDataSet
Returns void
- Defined in packages/ui-chart/renderer/LineChartRenderer.d.ts:92

drawData

drawData(c: Canvas): void
Draws the actual data in form of lines, bars, ... depending on Renderer subclass.
Parameters
- c: Canvas
Returns void
Overrides LineRadarRenderer.drawData
- Defined in packages/ui-chart/renderer/LineChartRenderer.d.ts:76

`Protected`drawDataSet

drawDataSet(c: Canvas, dataSet: LineDataSet): boolean
Parameters
- c: Canvas
- dataSet: LineDataSet
Returns boolean
- Defined in packages/ui-chart/renderer/LineChartRenderer.d.ts:77

drawExtras

drawExtras(c: Canvas): void
Draws any kind of additional information (e.g. line-circles).
Parameters
- c: Canvas
Returns void
Overrides LineRadarRenderer.drawExtras
- Defined in packages/ui-chart/renderer/LineChartRenderer.d.ts:91

`Protected`drawFill

drawFill(
    c: Canvas,
    dataSet: ILineDataSet,
    spline: Path,
    trans: Transformer,
    min: number,
    max: number,
    color?: any,
    fillMin?: number,
): void
Parameters
- c: Canvas
- dataSet: ILineDataSet
- spline: Path
- trans: Transformer
- min: number
- max: number
- Optionalcolor: any
- OptionalfillMin: number
Returns void
- Defined in packages/ui-chart/renderer/LineChartRenderer.d.ts:88

`Protected`drawFilledPath

drawFilledPath(
    c: Canvas,
    filledPath: Path,
    fillColor: string | Color,
    fillAlpha?: number,
    shader?: any,
): void
Draws the provided path in filled mode with the provided color and alpha. Special thanks to Angelo Suzuki (https://github.com/tinsukE) for this.
Parameters
- c: Canvas
- filledPath: Path
- fillColor: string | Color
- OptionalfillAlpha: number
- Optionalshader: any
Returns void
Inherited from LineRadarRenderer.drawFilledPath
- Defined in packages/ui-chart/renderer/LineRadarRenderer.d.ts:29

`Protected`drawFilledPathBitmap

drawFilledPathBitmap(
    c: Canvas,
    filledPath: Path,
    drawable: ImageSource,
    shader: any,
): void
Draws the provided path in filled mode with the provided drawable.
Parameters
- c: Canvas
- filledPath: Path
- drawable: ImageSource
- shader: any
Returns void
Inherited from LineRadarRenderer.drawFilledPathBitmap
- Defined in packages/ui-chart/renderer/LineRadarRenderer.d.ts:18

drawHighlighted

drawHighlighted(
    c: Canvas,
    indices: Highlight<Entry>[],
    actualDraw?: boolean,
): void
Draws all highlight indicators for the values that are currently highlighted.
Parameters
- c: Canvas
- indices: Highlight<Entry>[]
  the highlighted values
- OptionalactualDraw: boolean
  whether to draw or not
Returns void
Overrides LineRadarRenderer.drawHighlighted
- Defined in packages/ui-chart/renderer/LineChartRenderer.d.ts:94

`Protected`drawHighlightLines

drawHighlightLines(
    c: Canvas,
    x: any,
    y: any,
    set: ILineScatterCandleRadarDataSet<any>,
): void
Draws vertical & horizontal highlight-lines if enabled.
Parameters
- c: Canvas
- x: any
  x-position of the highlight line intersection
- y: any
  y-position of the highlight line intersection
- set: ILineScatterCandleRadarDataSet<any>
  the currently drawn dataset
Returns void
Inherited from LineRadarRenderer.drawHighlightLines
- Defined in packages/ui-chart/renderer/LineScatterCandleRadarRenderer.d.ts:19

drawIcon

drawIcon<T>(
    canvas: Canvas,
    chart: Chart<any, any, any>,
    dataSet: DataSet<any>,
    dataSetIndex: number,
    entry: T,
    entryIndex: number,
    icon: ImageSource | Shape,
    x: number,
    y: number,
    customRender?: BaseCustomRenderer,
): void
Draws the icons of the given entry
Type Parameters
- T
Parameters
- canvas: Canvas
  canvas
- chart: Chart<any, any, any>
  icon to draw
- dataSet: DataSet<any>
- dataSetIndex: number
- entry: T
- entryIndex: number
- icon: ImageSource | Shape
  icon to draw
- x: number
  position
- y: number
  position
- OptionalcustomRender: BaseCustomRenderer
Returns void
Inherited from LineRadarRenderer.drawIcon
- Defined in packages/ui-chart/renderer/DataRenderer.d.ts:88

drawLines

drawLines(
    canvas: Canvas,
    points: number[],
    offest: number,
    length: number,
    paint: Paint,
    matrix?: Matrix,
): void
Parameters
- canvas: Canvas
- points: number[]
- offest: number
- length: number
- paint: Paint
- Optionalmatrix: Matrix
Returns void
- Defined in packages/ui-chart/renderer/LineChartRenderer.d.ts:87

drawPath

drawPath(canvas: Canvas, path: Path, paint: Paint): void
Parameters
- canvas: Canvas
- path: Path
- paint: Paint
Returns void
Inherited from LineRadarRenderer.drawPath
- Defined in packages/ui-chart/renderer/LineRadarRenderer.d.ts:19

drawValue

drawValue<T>(
    c: Canvas,
    chart: Chart<any, any, any>,
    dataSet: DataSet<any>,
    dataSetIndex: number,
    entry: T,
    entryIndex: any,
    valueText: string,
    x: number,
    y: number,
    color: string | Color,
    paint: Paint,
    customRender?: BaseCustomRenderer,
): void
Draws the value of the given entry by using the provided IValueFormatter.
Type Parameters
- T
Parameters
- c: Canvas
  canvas
- chart: Chart<any, any, any>
- dataSet: DataSet<any>
- dataSetIndex: number
- entry: T
  label to draw
- entryIndex: any
  label to draw
- valueText: string
  label to draw
- x: number
  position
- y: number
  position
- color: string | Color
- paint: Paint
- OptionalcustomRender: BaseCustomRenderer
Returns void
Inherited from LineRadarRenderer.drawValue
- Defined in packages/ui-chart/renderer/DataRenderer.d.ts:76

drawValues

drawValues(c: Canvas): void
Loops over all Entrys and draws their values.
Parameters
- c: Canvas
Returns void
Overrides LineRadarRenderer.drawValues
- Defined in packages/ui-chart/renderer/LineChartRenderer.d.ts:90

drawValuesForDataset

drawValuesForDataset(
    c: Canvas,
    dataSet: LineDataSet,
    dataSetIndex: number,
): void
Parameters
- c: Canvas
- dataSet: LineDataSet
- dataSetIndex: number
Returns void
- Defined in packages/ui-chart/renderer/LineChartRenderer.d.ts:89

generateCubicPath

generateCubicPath(
dataSet: ILineDataSet,
outputPath: Path,
): (number | number[] | TypedArray)[]
Parameters
- dataSet: ILineDataSet
- outputPath: Path
Returns (number | number[] | TypedArray)[]
- Defined in packages/ui-chart/renderer/LineChartRenderer.d.ts:79

generateHorizontalBezierPath

generateHorizontalBezierPath(
dataSet: ILineDataSet,
outputPath: Path,
): (number | number[] | TypedArray)[]
Parameters
- dataSet: ILineDataSet
- outputPath: Path
Returns (number | number[] | TypedArray)[]
- Defined in packages/ui-chart/renderer/LineChartRenderer.d.ts:78

generateLinearPath

generateLinearPath(
dataSet: ILineDataSet,
outputPath: Path,
): (number | number[] | TypedArray)[]
Parameters
- dataSet: ILineDataSet
- outputPath: Path
Returns (number | number[] | TypedArray)[]
- Defined in packages/ui-chart/renderer/LineChartRenderer.d.ts:80

getMultiColorsShader

getMultiColorsShader(
    colors: { color: string | Color; [k: string]: any }[],
    points: any,
    trans: Transformer,
    dataSet: LineDataSet,
): LinearGradient
Parameters
- colors: { color: string | Color; [k: string]: any }[]
- points: any
- trans: Transformer
- dataSet: LineDataSet
Returns LinearGradient
- Defined in packages/ui-chart/renderer/LineChartRenderer.d.ts:81

initBuffers

initBuffers(): void
Returns void
Inherited from LineRadarRenderer.initBuffers
- Defined in packages/ui-chart/renderer/DataRenderer.d.ts:40

`Protected`isDrawingValuesAllowed

isDrawingValuesAllowed(chart: ChartInterface): boolean
Parameters
- chart: ChartInterface
Returns boolean
Inherited from LineRadarRenderer.isDrawingValuesAllowed
- Defined in packages/ui-chart/renderer/DataRenderer.d.ts:44

`Protected`isInBoundsX

isInBoundsX(e: Entry, set: IBarLineScatterCandleBubbleDataSet<any>): boolean
Checks if the provided entry object is in bounds for drawing considering the current animation phase.
Parameters
- e: Entry
- set: IBarLineScatterCandleBubbleDataSet<any>
Returns boolean
Inherited from LineRadarRenderer.isInBoundsX
- Defined in packages/ui-chart/renderer/BarLineScatterCandleBubbleRenderer.d.ts:56

releaseBitmap

releaseBitmap(): void
Releases the drawing bitmap. This should be called when LineChart#onDetachedFromWindow().

Returns void
- Defined in packages/ui-chart/renderer/LineChartRenderer.d.ts:98

`Protected`shouldDrawValues

shouldDrawValues(set: IDataSet<any>): boolean
Returns true if the DataSet values should be drawn, false if not.
Parameters
- set: IDataSet<any>
Returns boolean
Inherited from LineRadarRenderer.shouldDrawValues
- Defined in packages/ui-chart/renderer/BarLineScatterCandleBubbleRenderer.d.ts:48

Class LineChartRenderer

Hierarchy (View Summary)

Index

Constructors

Properties

Accessors

Methods

Constructors

constructor

Parameters

Returns LineChartRenderer

Properties

animator

lastLinePath

ProtectedmBitmapCanvas

mChart

ProtectedmCirclePaintInner

ProtectedmDrawBitmap

ProtectedmHighlightPaint

ProtectedmRenderPaint

ProtectedmValuePaint

ProtectedmViewPortHandler

ProtectedmXBounds

Protected StaticmFillPath

Accessors

circlePaintInner

Returns Paint

ProtectedfillPath

Returns Path

highlightPaint

Returns Paint

renderPaint

Returns Paint

valuePaint

Returns Paint

Methods

ProtectedapplyValueTextStyle

Parameters

Returns void

Protecteddraw

Parameters

Returns boolean

ProtecteddrawCircles

Parameters

Returns void

ProtecteddrawCirclesForDataset

Parameters

Returns void

drawData

Parameters

Returns void

ProtecteddrawDataSet

Parameters

Returns boolean

drawExtras

Parameters

Returns void

ProtecteddrawFill

Parameters

Returns void

ProtecteddrawFilledPath

Parameters

Returns void

ProtecteddrawFilledPathBitmap

Parameters

Returns void

drawHighlighted

Parameters

Returns void

ProtecteddrawHighlightLines

Parameters

Returns void

drawIcon

Type Parameters

Parameters

Returns void

drawLines

Parameters

Returns void

drawPath

`Protected`mBitmapCanvas

`Protected`mCirclePaintInner

`Protected`mDrawBitmap

`Protected`mHighlightPaint

`Protected`mRenderPaint

`Protected`mValuePaint

`Protected`mViewPortHandler

`Protected`mXBounds

`Protected` `Static`mFillPath

`Protected`fillPath

`Protected`applyValueTextStyle

`Protected`draw

`Protected`drawCircles

`Protected`drawCirclesForDataset

`Protected`drawDataSet

`Protected`drawFill

`Protected`drawFilledPath

`Protected`drawFilledPathBitmap

`Protected`drawHighlightLines

`Protected`isDrawingValuesAllowed

`Protected`isInBoundsX

`Protected`shouldDrawValues