Class PieChartRenderer

Superclass of all render classes for the different data types (line, bar, ...).

Hierarchy (View Summary)

DataRenderer
- PieChartRenderer

Constructors

constructor

new PieChartRenderer(
    chart: PieChart,
    animator: ChartAnimator,
    viewPortHandler: ViewPortHandler,
): PieChartRenderer
Parameters
- chart: PieChart
- animator: ChartAnimator
- viewPortHandler: ViewPortHandler
Returns PieChartRenderer
Overrides DataRenderer.constructor
- Defined in packages/ui-chart/renderer/PieChartRenderer.d.ts:38

Properties

animator

animator: ChartAnimator

the animator object used to perform animations on the chart data

`Protected`mBitmapCanvas

mBitmapCanvas: Canvas

`Protected`mChart

mChart: PieChart

`Protected`mDrawBitmap

mDrawBitmap: WeakRef<ImageSource>

Bitmap for drawing the center hole

`Protected`mHighlightPaint

mHighlightPaint: Paint

palet used for highlighting values

`Protected`mHolePaint

mHolePaint: Paint

palet for the hole in the center of the pie chart and the transparent circle

`Protected`mRenderPaint

mRenderPaint: Paint

main palet object used for rendering

`Protected`mTransparentCirclePaint

mTransparentCirclePaint: Paint

`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

Accessors

`Protected`centerTextLastBounds

get centerTextLastBounds(): RectF
Returns RectF
- Defined in packages/ui-chart/renderer/PieChartRenderer.d.ts:35

centerTextPaint

get centerTextPaint(): Paint
Returns Paint
- Defined in packages/ui-chart/renderer/PieChartRenderer.d.ts:39

entryLabelsPaint

get entryLabelsPaint(): Paint
Returns Paint
- Defined in packages/ui-chart/renderer/PieChartRenderer.d.ts:40

highlightPaint

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

holePaint

get holePaint(): Paint
Returns Paint
- Defined in packages/ui-chart/renderer/PieChartRenderer.d.ts:42

`Protected`rectBuffer

get rectBuffer(): RectF[]
Returns RectF[]
- Defined in packages/ui-chart/renderer/PieChartRenderer.d.ts:37

renderPaint

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

transparentCirclePaint

get transparentCirclePaint(): Paint
Returns Paint
- Defined in packages/ui-chart/renderer/PieChartRenderer.d.ts:41

valuePaint

get valuePaint(): Paint
Returns Paint
Overrides DataRenderer.valuePaint
- Defined in packages/ui-chart/renderer/PieChartRenderer.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 DataRenderer.applyValueTextStyle
- Defined in packages/ui-chart/renderer/DataRenderer.d.ts:51

`Protected`calculateMinimumRadiusForSpacedSlice

calculateMinimumRadiusForSpacedSlice(
    center: MPPointF,
    radius: any,
    angle: any,
    arcStartPointX: any,
    arcStartPointY: any,
    startAngle: any,
    sweepAngle: any,
): number
Parameters
- center: MPPointF
- radius: any
- angle: any
- arcStartPointX: any
- arcStartPointY: any
- startAngle: any
- sweepAngle: any
Returns number
- Defined in packages/ui-chart/renderer/PieChartRenderer.d.ts:45

`Protected`drawCenterText

drawCenterText(c: Canvas): void
Draws the description text in the center of the pie chart makes most sense when center-hole is enabled.
Parameters
- c: Canvas
Returns void
- Defined in packages/ui-chart/renderer/PieChartRenderer.d.ts:74

drawData

drawData(c: Canvas): void
Draws the actual data in form of lines, bars, ... depending on Renderer subclass.
Parameters
- c: Canvas
Returns void
Overrides DataRenderer.drawData
- Defined in packages/ui-chart/renderer/PieChartRenderer.d.ts:44

`Protected`drawDataSet

drawDataSet(c: Canvas, dataSet: IPieDataSet): boolean
Parameters
- c: Canvas
- dataSet: IPieDataSet
Returns boolean
- Defined in packages/ui-chart/renderer/PieChartRenderer.d.ts:53

`Protected`drawEntryLabel

drawEntryLabel(c: Canvas, label: any, x: any, y: any, paint: Paint): void
Draws an entry label at the specified position.
Parameters
- c: Canvas
- label: any
- x: any
- y: any
- paint: Paint
Returns void
- Defined in packages/ui-chart/renderer/PieChartRenderer.d.ts:63

drawExtras

drawExtras(c: Canvas): void
Draws any kind of additional information (e.g. line-circles).
Parameters
- c: Canvas
Returns void
Overrides DataRenderer.drawExtras
- Defined in packages/ui-chart/renderer/PieChartRenderer.d.ts:64

drawHighlighted

drawHighlighted(c: Canvas, indices: Highlight<Entry>[]): void
Draws all highlight indicators for the values that are currently highlighted.
Parameters
- c: Canvas
- indices: Highlight<Entry>[]
  the highlighted values
Returns void
Overrides DataRenderer.drawHighlighted
- Defined in packages/ui-chart/renderer/PieChartRenderer.d.ts:75

`Protected`drawHole

drawHole(c: Canvas): void
Draws the hole in the center of the chart and the transparent circle / hole.
Parameters
- c: Canvas
Returns void
- Defined in packages/ui-chart/renderer/PieChartRenderer.d.ts:69

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 DataRenderer.drawIcon
- Defined in packages/ui-chart/renderer/DataRenderer.d.ts:88

`Protected`drawRoundedSlices

drawRoundedSlices(c: Canvas): void
This gives all pie-slices a rounded edge.
Parameters
- c: Canvas
Returns void
- Defined in packages/ui-chart/renderer/PieChartRenderer.d.ts:81

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 DataRenderer.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 DataRenderer.drawValues
- Defined in packages/ui-chart/renderer/PieChartRenderer.d.ts:54

`Protected`getSliceSpace

getSliceSpace(dataSet: IPieDataSet): number
Calculates the sliceSpace to use based on visible values and their size compared to the set sliceSpace.
Parameters
- dataSet: IPieDataSet
Returns number
- Defined in packages/ui-chart/renderer/PieChartRenderer.d.ts:52

initBuffers

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

`Protected`isDrawingValuesAllowed

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

releaseBitmap

releaseBitmap(): void
Releases the drawing bitmap.

Returns void
- Defined in packages/ui-chart/renderer/PieChartRenderer.d.ts:85

Class PieChartRenderer

Hierarchy (View Summary)

Index

Constructors

Properties

Accessors

Methods

Constructors

constructor

Parameters

Returns PieChartRenderer

Properties

animator

ProtectedmBitmapCanvas

ProtectedmChart

ProtectedmDrawBitmap

ProtectedmHighlightPaint

ProtectedmHolePaint

ProtectedmRenderPaint

ProtectedmTransparentCirclePaint

ProtectedmValuePaint

ProtectedmViewPortHandler

Accessors

ProtectedcenterTextLastBounds

Returns RectF

centerTextPaint

Returns Paint

entryLabelsPaint

Returns Paint

highlightPaint

Returns Paint

holePaint

Returns Paint

ProtectedrectBuffer

Returns RectF[]

renderPaint

Returns Paint

transparentCirclePaint

Returns Paint

valuePaint

Returns Paint

Methods

ProtectedapplyValueTextStyle

Parameters

Returns void

ProtectedcalculateMinimumRadiusForSpacedSlice

Parameters

Returns number

ProtecteddrawCenterText

Parameters

Returns void

drawData

Parameters

Returns void

ProtecteddrawDataSet

Parameters

Returns boolean

ProtecteddrawEntryLabel

Parameters

Returns void

drawExtras

Parameters

Returns void

drawHighlighted

Parameters

Returns void

ProtecteddrawHole

Parameters

Returns void

drawIcon

Type Parameters

Parameters

Returns void

ProtecteddrawRoundedSlices

Parameters

Returns void

drawValue

Type Parameters

Parameters

Returns void

`Protected`mBitmapCanvas

`Protected`mChart

`Protected`mDrawBitmap

`Protected`mHighlightPaint

`Protected`mHolePaint

`Protected`mRenderPaint

`Protected`mTransparentCirclePaint

`Protected`mValuePaint

`Protected`mViewPortHandler

`Protected`centerTextLastBounds

`Protected`rectBuffer

`Protected`applyValueTextStyle

`Protected`calculateMinimumRadiusForSpacedSlice

`Protected`drawCenterText

`Protected`drawDataSet

`Protected`drawEntryLabel

`Protected`drawHole

`Protected`drawRoundedSlices

`Protected`getSliceSpace

`Protected`isDrawingValuesAllowed