CategoryDateTimeAxis

StockSharp.Xaml.Charting.Visuals.Axes

Provides a Linear, Category DateTime Axis, capable of rendering DateTime ticks on the X-Axis of a UltrachartSurface. The CategoryDateTimeAxis is specifically used in stock-charts or financial charts, since the category-nature of the axis automatically collapses weekend gaps and overnight gaps in trading charts. Each data-point is treated as equidistant despite the X Data-value.

Erbt von: AxisBase

Implementiert: ICategoryAxis, IAxis, IAxisParams, IHitTestable, ISuspendable, IInvalidatableElement, IDrawable

Konstruktoren

CategoryDateTimeAxis()

Initializes a new instance of the CategoryDateTimeAxis class.

Eigenschaften

BarTimeFrame : double

Gets or sets the Bar Time Frame in seconds. This is the number of seconds that each data-point represents on the CategoryDateTimeAxis and is required for proper rendering. A default value of -1 allows the CategoryDateTimeAxis to estimate the timeframe

CurrentDatapointPixelSize : double

Gets the current data-point width, which is the width of one data-point in pixels on the category axis

IsCategoryAxis : bool

Gets a value indicating whether this instance is category axis.

MinimalZoomConstrain : int?

Gets or sets the MinimalZoomConstrain of the Axis. This is used to set minimum distance between Min and Max of the VisibleRange

SubDayTextFormatting : string

Gets or sets the Text Formatting String used for Axis Tick Labels when the range of the axis is sub-day

Methoden

CalculateDataRange() : IRange

Calculates data range of current axis

CalculateDelta()

Calcuates the delta's for use in this render pass

CalculateYRange(RenderPassInfo) : IRange

Calculates the zoom-to-fit Y-Range of the axis, accounting for the data that is in the viewport and applying any GrowBy margin

renderPassInfo: Struct containing data for the current render pass

Rückgabe: The VisibleRange of the axis

Clone() : IAxis

Clones this instance.

ConvertTickToDataValue(IComparable) : IComparable

When overridden in a derived class, converts a tick value to a data value. For instance, this may be overridden in the CategoryDateTimeAxis to convert between indices and DateTimes

value

GetAxisParams() : AxisParams

Gets an AxisParams struct with info about the current axis setup

GetCoordinate(IComparable) : double

Given the Data Value, returns the x or y pixel coordinate at that value on the Axis. This operation is the opposite of Point)

value: The DataValue as input

Rückgabe: The pixel coordinate on this Axis corresponding to the input DataValue

GetDataValue(double) : IComparable

Transforms a pixel coordinate into a data value for this axis.

pixelCoordinate

GetDefaultNonZeroRange() : IRange

Returns an default non zero IRange, called internally by Ultrachart to reset the VisibleRange of an axis to an undefined state

GetDeltaCalculator() : IDeltaCalculator

Returns an instance of an IDeltaCalculator which is used to compute the data-values of MajorDelta, MinorDelta. Overridden by derived types to allow calculations specific to that axis type.

Rückgabe: An IDeltaCalculator instance

GetMaximumRange() : IRange

Gets the Maximum Range of the axis, which is equal to the DataRange including any GrowBy factor applied

GetSupportedTypes() : List<Type>

Returns a list of types which current axis is designed to work with

GetUndefinedRange() : IRange

Returns an undefined IRange, called internally by Ultrachart to reset the VisibleRange of an axis to an undefined state

IsOfValidType(IRange) : bool

Checks whether is of valid type for this axis

range

OnBeginRenderPass(RenderPassInfo, IPointSeries)

Called at the start of a render pass, passing in the root IPointSeries which will define the categories

renderPassInfo
firstPointSeries: the root IPointSeries which will define the categories

ToDateRange(IndexRange) : DateRange

Converts the CategoryDateTimeAxis's VisibleRange of type IndexRange to a DateRange of concrete date-values. Note: If either index is outside of the range of data on the axis, the date values will be inteporlated.

visibleRange: The input IndexRange

Rückgabe: The DateRange with transformed dates that correspond to input indices

Felder

BarTimeFrameProperty : DependencyProperty

Defines the BarTimeFrame DependencyProperty. A default value of -1 allows the CategoryDateTimeAxis to estimate the timeframe

SubDayTextFormattingProperty : DependencyProperty

Defines the SubDayTextFormatting DependencyProperty