Nativescript plugin for Charts
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    Class BarLineScatterCandleBubbleData<U, T>Abstract

    Baseclass for all Line, Bar, Scatter, Candle and Bubble data.

    Type Parameters

    Hierarchy (View Summary)

    Index

    Constructors

    constructor

    Properties

    mDataSets mLeftAxisMax mLeftAxisMin mRightAxisMax mRightAxisMin mXMax mXMin mYMax mYMin

    Accessors

    colors dataSetCount dataSets drawValuesEnabled entryCount highlightEnabled maxEntryCountSet valueFormatter valueTextColor valueTextColors valueTextSize valueTypeface visibleDataSets xMax xMin yMax yMin

    Methods

    addDataSet addEntry calcMinMax calcMinMaxForDataSet calcMinMaxForEntry calcMinMaxYRange clearValues contains getDataSetAndIndexForEntry getDataSetByIndex getDataSetByLabel getDataSetForEntry getDataSetIndexByLabel getDataSetLabels getEntryAndIndexForHighlight getEntryForHighlight getFirstLeft getFirstRight getIndexOfDataSet getYMax getYMin notifyDataChanged removeDataSet removeDataSetAtIndex removeEntry removeEntryAtIndex removeEntryForXValue setHighlightEnabled

    Constructors

    Properties

    mDataSets: T[]

    array that holds all DataSets the ChartData object represents

    mLeftAxisMax: number
    mLeftAxisMin: number
    mRightAxisMax: number
    mRightAxisMin: number
    mXMax: number

    maximum x-value in the value array

    mXMin: number

    minimum x-value in the value array

    mYMax: number

    maximum y-value in the value array across all axes

    mYMin: number

    the minimum y-value in the value array across all axes

    Accessors

    • get colors(): any[]

      Returns all colors used across all DataSet objects this object represents.

      Returns any[]

    • get dataSetCount(): number

      returns the number of LineDataSets this object contains

      Returns number

    • get dataSets(): T[]

      Returns all DataSet objects this ChartData object holds.

      Returns T[]

    • set drawValuesEnabled(enabled: any): void

      Enables / disables drawing values (value-text) for all DataSets this data object contains.

      Parameters

      • enabled: any

      Returns void

    • get entryCount(): number

      Returns the total entry count across all DataSet objects this data object contains.

      Returns number

    • get highlightEnabled(): boolean

      Returns true if highlighting of all underlying values is enabled, false if not.

      Returns boolean

    • get maxEntryCountSet(): T

      Returns the DataSet object with the maximum number of entries or null if there are no DataSets.

      Returns T

    • set valueFormatter(f: IValueFormatter): void

      Sets a custom IValueFormatter for all DataSets this data object contains.

      Parameters

      Returns void

    • set valueTextColor(color: any): void

      Sets the color of the value-text (color in which the value-labels are drawn) for all DataSets this data object contains.

      Parameters

      • color: any

      Returns void

    • set valueTextColors(colors: any): void

      Sets the same list of value-colors for all DataSets this data object contains.

      Parameters

      • colors: any

      Returns void

    • set valueTextSize(size: any): void

      Sets the size (in dp) of the value-text for all DataSets this data object contains.

      Parameters

      • size: any

      Returns void

    • set valueTypeface(tf: any): void

      Sets the Typeface for all value-labels for all DataSets this data object contains.

      Parameters

      • tf: any

      Returns void

    • get visibleDataSets(): T[]

      Returns T[]

    • get xMax(): number

      Returns the maximum x-value this data object contains.

      Returns number

    • get xMin(): number

      Returns the minimum x-value this data object contains.

      Returns number

    • get yMax(): number

      Returns number

    • get yMin(): number

      Returns number

    Methods

    • Adds a DataSet dynamically.

      Parameters

      Returns void

    • Adds an Entry to the DataSet at the specified index. Entries are added to the end of the list.

      Parameters

      • e: any
      • dataSetIndex: any

      Returns void

    • Calc minimum and maximum values (both x and y) over all DataSets.

      Returns void

    • Adjusts the minimum and maximum values based on the given DataSet.

      Parameters

      Returns void

    • Calc minimum and maximum y-values over all DataSets. Tell DataSets to recalculate their min and max y-values, this is only needed for autoScaleMinMax.

      Parameters

      • fromX: any

        the x-value to start the calculation from

      • toX: any

        the x-value to which the calculation should be performed

      Returns void

    • Clears this data object from all DataSets and removes all Entries. Don't forget to invalidate the chart after this.

      Returns void

    • Checks if this data object contains the specified DataSet. Returns true if so, false if not.

      Parameters

      • dataSet: any

      Returns boolean

    • Returns the DataSet that contains the provided Entry and the entry index, or null, if no DataSet contains this Entry.

      Parameters

      Returns { index: number; set: T }

    • Parameters

      • index: number

      Returns T

    • Returns the DataSet object with the given label. Search can be case sensitive or not. IMPORTANT: This method does calculations at runtime. Use with care in performance critical situations.

      Parameters

      • label: string
      • Optionalignorecase: boolean

      Returns T

    • Returns the DataSet that contains the provided Entry, or null, if no DataSet contains this Entry.

      Parameters

      Returns T

    • Retrieve the index of a DataSet with a specific label from the ChartData. Search can be case sensitive or not. IMPORTANT: This method does calculations at runtime, do not over-use in performance critical situations.

      Parameters

      • dataSets: T[]

        the DataSet array to search

      • label: string
      • Optionalignorecase: boolean

        if true, the search is not case-sensitive

      Returns number

    • Returns the labels of all DataSets as a string array.

      Returns any[]

    • Get the Entry for a corresponding highlight object

      Parameters

      Returns { entry: Entry; index: number }

      the entry that is highlighted

    • Returns the first DataSet from the datasets-array that has it's dependency on the left axis. Returns null if no DataSet with left dependency could be found.

      Parameters

      • sets: T[]

      Returns T

    • Returns the first DataSet from the datasets-array that has it's dependency on the right axis. Returns null if no DataSet with right dependency could be found.

      Parameters

      • sets: T[]

      Returns T

    • Returns the index of the provided DataSet in the DataSet array of this data object, or -1 if it does not exist.

      Parameters

      • dataSet: T

      Returns number

    • Returns the maximum y-value for the specified axis.

      Parameters

      Returns number

    • Returns the minimum y-value for the specified axis.

      Parameters

      • Optionalaxis: any

      Returns number

    • Call this method to let the ChartData know that the underlying data has changed. Calling this performs all necessary recalculations needed when the contained data has changed.

      Returns void

    • Removes the given DataSet from this data object. Also recalculates all minimum and maximum values. Returns true if a DataSet was removed, false if no DataSet could be removed.

      Parameters

      Returns boolean

    • Removes the DataSet at the given index in the DataSet array from the data object. Also recalculates all minimum and maximum values. Returns true if a DataSet was removed, false if no DataSet could be removed.

      Parameters

      • index: any

      Returns boolean

    • Removes the given Entry object from the DataSet at the specified index.

      Parameters

      • e: any
      • dataSetIndex: any

      Returns boolean

    • Removes the Entry object closest to the given DataSet at the specified index. Returns true if an Entry was removed, false if no Entry was found that meets the specified requirements.

      Parameters

      • index: any
      • dataSetIndex: any

      Returns boolean

    • Removes the Entry object closest to the given DataSet at the specified index. Returns true if an Entry was removed, false if no Entry was found that meets the specified requirements.

      Parameters

      • xValue: any
      • dataSetIndex: any

      Returns boolean

    • Enables / disables highlighting values for all DataSets this data object contains. If set to true, this means that values can be highlighted programmatically or by touch gesture.

      Parameters

      • enabled: any

      Returns void

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