Core Plot (macOS)
Cocoa plotting framework for macOS, iOS, and tvOS
CPTScatterPlot Class Reference

A two-dimensional scatter plot. More...

#import <CPTScatterPlot.h>

+ Inheritance diagram for CPTScatterPlot:
+ Collaboration diagram for CPTScatterPlot:

Public Instance Methods

Visible Points
(NSUInteger- indexOfVisiblePointClosestToPlotAreaPoint:
 Returns the index of the closest visible point to the point passed in. More...
 
(CGPoint- plotAreaPointOfVisiblePointAtIndex:
 Returns the plot area view point of a visible point. More...
 
Plot Symbols
(nullable CPTPlotSymbol *) - plotSymbolForRecordIndex:
 Returns the plot symbol to use for a given index. More...
 
(void) - reloadPlotSymbols
 Reload all plot symbols from the data source immediately. More...
 
(void) - reloadPlotSymbolsInIndexRange:
 Reload plot symbols in the given index range from the data source immediately. More...
 
Initialization
(nonnull instancetype) - initWithFrame: [implementation]
 Initializes a newly allocated CPTScatterPlot object with the provided frame rectangle. More...
 
- Public Instance Methods inherited from CPTPlot
(void) - reloadPlotDataInIndexRange: [implementation]
 Reload plot data in the given index range from the data source immediately. More...
 
(nullable NSString *) - titleForLegendEntryAtIndex: [implementation]
 The title text of a legend entry. More...
 
(nullable NSAttributedString *) - attributedTitleForLegendEntryAtIndex: [implementation]
 The styled title text of a legend entry. More...
 
(nonnull CPTNumberArray *) - fieldIdentifiersForCoordinate: [implementation]
 The field identifiers that correspond to a particular coordinate. More...
 
(CPTCoordinate- coordinateForFieldIdentifier: [implementation]
 The coordinate value that corresponds to a particular field identifier. More...
 
(void) - positionLabelAnnotation:forIndex: [implementation]
 Adjusts the position of the data label annotation for the plot point at the given index. More...
 
(NSUInteger- dataIndexFromInteractionPoint: [implementation]
 Determines the index of the data element that is under the given point. More...
 
(nullable CPTPlotRange *) - plotRangeForField:
 Determines the smallest plot range that fully encloses the data for a particular field. More...
 
(nullable CPTPlotRange *) - plotRangeForCoordinate:
 Determines the smallest plot range that fully encloses the data for a particular coordinate. More...
 
(nullable CPTPlotRange *) - plotRangeEnclosingField:
 Determines the smallest plot range that fully encloses the entire plot for a particular field. More...
 
(nullable CPTPlotRange *) - plotRangeEnclosingCoordinate:
 Determines the smallest plot range that fully encloses the entire plot for a particular coordinate. More...
 
(NSUInteger- dataIndexFromInteractionPoint:
 
(NSUInteger- numberOfFields
 Number of fields in a plot data record. More...
 
(nonnull CPTNumberArray *) - fieldIdentifiers
 Identifiers (enum values) identifying the fields. More...
 
(nonnull CPTNumberArray *) - fieldIdentifiersForCoordinate:
 
(CPTCoordinate- coordinateForFieldIdentifier:
 
(void) - setDataNeedsReloading
 Marks the receiver as needing the data source reloaded before the content is next drawn. More...
 
(void) - reloadData
 Reload all plot data, labels, and plot-specific information from the data source immediately. More...
 
(void) - reloadDataIfNeeded
 Reload plot data from the data source only if the data cache is out of date. More...
 
(void) - reloadDataInIndexRange:
 Reload plot data, labels, and plot-specific information in the given index range from the data source immediately. More...
 
(void) - insertDataAtIndex:numberOfRecords:
 Insert records into the plot data cache at the given index. More...
 
(void) - deleteDataInIndexRange:
 Delete records in the given index range from the plot data cache. More...
 
(void) - reloadPlotData
 Reload all plot data from the data source immediately. More...
 
(void) - reloadPlotDataInIndexRange:
 
(nullable CPTMutableNumericData *) - cachedNumbersForField:
 Retrieves an array of numbers from the cache. More...
 
(nullable NSNumber *) - cachedNumberForField:recordIndex:
 Retrieves a single number from the cache. More...
 
(double) - cachedDoubleForField:recordIndex:
 Retrieves a single number from the cache. More...
 
(NSDecimal- cachedDecimalForField:recordIndex:
 Retrieves a single number from the cache. More...
 
(nullable NSArray *) - cachedArrayForKey:
 Retrieves an array of values from the cache. More...
 
(nullable id- cachedValueForKey:recordIndex:
 Retrieves a single value from the cache. More...
 
(void) - cacheNumbers:forField:
 Copies an array of numbers to the cache. More...
 
(void) - cacheNumbers:forField:atRecordIndex:
 Copies an array of numbers to replace a part of the cache. More...
 
(void) - cacheArray:forKey:
 Copies an array of arbitrary values to the cache. More...
 
(void) - cacheArray:forKey:atRecordIndex:
 Copies an array of arbitrary values to replace a part of the cache. More...
 
(void) - setNeedsRelabel
 Marks the receiver as needing to update all data labels before the content is next drawn. More...
 
(void) - relabel
 Updates the data labels in the labelIndexRange. More...
 
(void) - relabelIndexRange:
 Marks the receiver as needing to update a range of data labels before the content is next drawn. More...
 
(void) - repositionAllLabelAnnotations
 Repositions all existing label annotations. More...
 
(void) - reloadDataLabels
 Reload all data labels from the data source immediately. More...
 
(void) - reloadDataLabelsInIndexRange:
 Reload data labels in the given index range from the data source immediately. More...
 
(void) - positionLabelAnnotation:forIndex:
 
(NSUInteger- numberOfLegendEntries
 The number of legend entries provided by this plot. More...
 
(nullable NSString *) - titleForLegendEntryAtIndex:
 
(nullable NSAttributedString *) - attributedTitleForLegendEntryAtIndex:
 
(void) - drawSwatchForLegend:atIndex:inRect:inContext:
 Draws the legend swatch of a legend entry. Subclasses should call super to draw the background fill and border. More...
 
(nullable id- numbersFromDataSourceForField:recordIndexRange:
 Gets a range of plot data for the given plot and field. More...
 
(BOOL- loadNumbersForAllFieldsFromDataSourceInRecordIndexRange:
 Gets a range of plot data for the given plot. More...
 
- Public Instance Methods inherited from CPTAnnotationHostLayer
(void) - addAnnotation:
 Adds an annotation to the receiver. More...
 
(void) - removeAnnotation:
 Removes an annotation from the receiver. More...
 
(void) - removeAllAnnotations
 Removes all annotations from the receiver. More...
 
(BOOL- pointingDeviceDraggedEvent:atPoint: [implementation]
 Informs the receiver that the user has moved the mouse with the button pressed. More...
 
(BOOL- pointingDeviceCancelledEvent: [implementation]
 Informs the receiver that tracking of mouse moves has been cancelled for any reason. More...
 
- Public Instance Methods inherited from CPTLayer
(nullable instancetype) - initWithCoder:
 Returns an object initialized from data in a given unarchiver. More...
 
(nonnull instancetype) - initWithLayer:
 Override to copy or initialize custom fields of the specified layer. More...
 
(nonnull instancetype) - init [implementation]
 Initializes a newly allocated CPTLayer object with an empty frame rectangle. More...
 
(void) - logLayers
 Logs this layer and all of its sublayers. More...
 
(BOOL- pointingDeviceDownEvent:atPoint: [implementation]
 
(BOOL- pointingDeviceUpEvent:atPoint: [implementation]
 
(BOOL- pointingDeviceDraggedEvent:atPoint: [implementation]
 
(BOOL- pointingDeviceCancelledEvent: [implementation]
 
(BOOL- scrollWheelEvent:fromPoint:toPoint: [implementation]
 
(nonnull CPTNativeImage *) - imageOfLayer
 Gets an image of the layer contents. More...
 
(void) - setNeedsDisplayAllLayers
 Recursively marks this layer and all sublayers as needing to be redrawn. More...
 
(void) - renderAsVectorInContext:
 Draws layer content into the provided graphics context. More...
 
(void) - recursivelyRenderInContext:
 Draws layer content and the content of all sublayers into the provided graphics context. More...
 
(void) - layoutAndRenderInContext:
 Updates the layer layout if needed and then draws layer content and the content of all sublayers into the provided graphics context. More...
 
(nonnull NSData *) - dataForPDFRepresentationOfLayer
 Draws layer content and the content of all sublayers into a PDF document. More...
 
(void) - applySublayerMaskToContext:forSublayer:withOffset:
 Recursively sets the clipping path of the given graphics context to the sublayer masking paths of its superlayers. More...
 
(void) - applyMaskToContext:
 Sets the clipping path of the given graphics context to mask the content. More...
 
(void) - pixelAlign
 Align the receiver’s position with pixel boundaries. More...
 
(void) - sublayerMarginLeft:top:right:bottom:
 Returns the margins that should be left between the bounds of the receiver and all sublayers. More...
 
(void) - layoutSublayers [implementation]
 Updates the layout of all sublayers. Sublayers fill the super layer’s bounds minus any padding. More...
 
- Public Instance Methods inherited from CALayer
(BOOL- containsPoint:
 
(void) - drawInContext:
 
(id- init
 
(id- initWithLayer
 
(void) - layoutSublayers
 
(void) - setNeedsDisplay
 
(void) - setNeedsDisplayInRect:
 
(void) - setNeedsLayout
 
- Public Instance Methods inherited from NSObject
(Class- classForCoder
 
(id- copy
 
(void) - dealloc
 
(void) - finalize
 
(id- init
 
(id- mutableCopy
 
- Public Instance Methods inherited from <NSObject>
(NSString *) - description
 
(NSUInteger- hash
 
(BOOL- isEqual:
 
- Public Instance Methods inherited from <NSKeyValueBindingCreation>
(NSArray *) - exposedBindings
 
(Class- valueClassForBinding:
 
(void) - bind:toObject:withKeyPath:options:
 
(NSArray *) - optionDescriptionsForBinding:
 
(NSDictionary *) - infoForBinding:
 
(void) - unbind:
 
- Public Instance Methods inherited from <NSCoding>
(id- initWithCoder:
 
(void) - encodeWithCoder:
 
- Public Instance Methods inherited from <CPTResponder>
(BOOL- scrollWheelEvent:fromPoint:toPoint:
 (Required) Informs the receiver that the user has moved the scroll wheel. More...
 

Properties

Appearance
NSNumberareaBaseValue
 The Y coordinate of the straight boundary of the area fill. If not a number, the area is not filled. More...
 
NSNumberareaBaseValue2
 The Y coordinate of the straight boundary of the secondary area fill. If not a number, the area is not filled. More...
 
CPTScatterPlotInterpolation interpolation
 The interpolation algorithm used for lines between data points. Default is CPTScatterPlotInterpolationLinear. More...
 
CPTScatterPlotHistogramOption histogramOption
 The drawing style for a histogram plot line (interpolation = CPTScatterPlotInterpolationHistogram). Default is CPTScatterPlotHistogramNormal. More...
 
CPTScatterPlotCurvedInterpolationOption curvedInterpolationOption
 The interpolation method used to generate the curved plot line (interpolation = CPTScatterPlotInterpolationCurved) Default is CPTScatterPlotCurvedInterpolationNormal. More...
 
CGFloat curvedInterpolationCustomAlpha
 The custom alpha value used when the CPTScatterPlotCurvedInterpolationCatmullCustomAlpha interpolation is selected. Default is 0.5. More...
 
Drawing
CPTLineStyledataLineStyle
 The line style for the data line. If nil, the line is not drawn. More...
 
CPTPlotSymbolplotSymbol
 The plot symbol drawn at each point if the data source does not provide symbols. If nil, no symbol is drawn. More...
 
CPTFillareaFill
 The fill style for the area underneath the data line. If nil, the area is not filled. More...
 
CPTFillareaFill2
 The fill style for the area above the data line. If nil, the area is not filled. More...
 
Data Line
CGPathRef newDataLinePath
 The path used to draw the data line. The caller must release the returned path. More...
 
- Properties inherited from CPTPlot
id< CPTPlotDataSourcedataSource
 The data source for the plot. More...
 
NSStringtitle
 The title of the plot displayed in the legend. More...
 
NSAttributedStringattributedTitle
 The styled title of the plot displayed in the legend. More...
 
CPTPlotSpaceplotSpace
 The plot space for the plot. More...
 
CPTPlotAreaplotArea
 The plot area for the plot. More...
 
BOOL alignsPointsToPixels
 If YES (the default), all plot points will be aligned to device pixels when drawing. More...
 
BOOL dataNeedsReloading
 If YES, the plot data will be reloaded from the data source before the layer content is drawn. More...
 
NSUInteger cachedDataCount
 The number of data points stored in the cache. More...
 
BOOL doublePrecisionCache
 If YES, the cache holds data of type double, otherwise it holds NSDecimal. More...
 
CPTPlotCachePrecision cachePrecision
 The numeric precision used to cache the plot data and perform all plot calculations. Defaults to CPTPlotCachePrecisionAuto. More...
 
CPTNumericDataType doubleDataType
 The CPTNumericDataType used to cache plot data as double. More...
 
CPTNumericDataType decimalDataType
 The CPTNumericDataType used to cache plot data as NSDecimal. More...
 
BOOL needsRelabel
 If YES, the plot needs to be relabeled before the layer content is drawn. More...
 
BOOL adjustLabelAnchors
 If YES, data labels anchor points are adjusted automatically when the labels are positioned. If NO, data labels anchor points do not change. More...
 
BOOL showLabels
 Set to NO to override all other label settings and hide the data labels. Defaults to YES. More...
 
CGFloat labelOffset
 The distance that labels should be offset from their anchor points. The direction of the offset is defined by subclasses. More...
 
CGFloat labelRotation
 The rotation of the data labels in radians. Set this property to π/2 to have labels read up the screen, for example. More...
 
NSUInteger labelField
 The plot field identifier of the data field used to generate automatic labels. More...
 
CPTTextStylelabelTextStyle
 The text style used to draw the data labels. Set this property to nil to hide the data labels. More...
 
NSFormatterlabelFormatter
 The number formatter used to format the data labels. Set this property to nil to hide the data labels. If you need a non-numerical label, such as a date, you can use a formatter than turns the numerical plot coordinate into a string (e.g., “Jan 10, 2010”). The CPTCalendarFormatter and CPTTimeFormatter classes are useful for this purpose. More...
 
CPTShadowlabelShadow
 The shadow applied to each data label. More...
 
BOOL drawLegendSwatchDecoration
 If YES (the default), additional plot-specific decorations, symbols, and/or colors will be drawn on top of the legend swatch rectangle. More...
 
- Properties inherited from CPTAnnotationHostLayer
CPTAnnotationArrayannotations
 An array of annotations attached to this layer. More...
 
- Properties inherited from CPTLayer
CPTGraphgraph
 The graph for the layer. More...
 
CGFloat paddingLeft
 Amount to inset the left side of each sublayer. More...
 
CGFloat paddingTop
 Amount to inset the top of each sublayer. More...
 
CGFloat paddingRight
 Amount to inset the right side of each sublayer. More...
 
CGFloat paddingBottom
 Amount to inset the bottom of each sublayer. More...
 
id< NSCopying, NSCoding, NSObjectidentifier
 An object used to identify the layer in collections. More...
 
CGFloat contentsScale
 The scale factor applied to the layer. More...
 
BOOL useFastRendering
 If YES, subclasses should optimize their drawing for speed over precision. More...
 
CPTShadowshadow
 The shadow drawn under the layer content. If nil (the default), no shadow is drawn. More...
 
CGSize shadowMargin
 The maximum margin size needed to fully enclose the layer shadow. More...
 
BOOL masksToBorder
 If YES, a sublayer mask is applied to clip sublayer content to the inside of the border. More...
 
CGPathRef outerBorderPath
 A drawing path that encompasses the outer boundary of the layer border. More...
 
CGPathRef innerBorderPath
 A drawing path that encompasses the inner boundary of the layer border. More...
 
CGPathRef maskingPath
 A drawing path that encompasses the layer content including any borders. Set to NULL when no masking is desired. More...
 
CGPathRef sublayerMaskingPath
 A drawing path that encompasses the layer content excluding any borders. Set to NULL when no masking is desired. More...
 
CPTSublayerSetsublayersExcludedFromAutomaticLayout
 A set of sublayers that should be excluded from the automatic sublayer layout. More...
 
- Properties inherited from CALayer
CGPoint anchorPoint
 
CGRect bounds
 
CGFloat contentsScale
 
CGFloat cornerRadius
 
id delegate
 
CGRect frame
 
BOOL masksToBounds
 
BOOL needsDisplayOnBoundsChange
 
BOOL opacity
 
BOOL opaque
 
- Properties inherited from <CAMediaTiming>
BOOL autoreverses
 
CFTimeInterval beginTime
 
CFTimeInterval duration
 
NSStringfillMode
 
float repeatCount
 
id repeatDuration
 
float speed
 
CFTimeInterval timeOffset
 

Area Fill Bands

CPTLimitBandArrayareaFillBands
 An array of CPTLimitBand objects. More...
 
(void) - addAreaFillBand:
 Add an area fill limit band. More...
 
(void) - removeAreaFillBand:
 Remove an area fill limit band. More...
 

User Interaction

CGFloat plotSymbolMarginForHitDetection
 A margin added to each side of a symbol when determining whether it has been hit. More...
 
CGFloat plotLineMarginForHitDetection
 A margin added to each side of a plot line when determining whether it has been hit. More...
 
BOOL allowSimultaneousSymbolAndPlotSelection
 YES if both symbol selection and line selection can happen on the same upEvent. If NO then when an upEvent occurs on a symbol only the symbol will be selected, otherwise the line will be selected if the upEvent occured on the line. More...
 
(BOOL- pointingDeviceDownEvent:atPoint: [implementation]
 Informs the receiver that the user has pressed the mouse button. More...
 
(BOOL- pointingDeviceUpEvent:atPoint: [implementation]
 Informs the receiver that the user has released the mouse button. More...
 
(BOOL- plotWasLineHitByInteractionPoint: [implementation]
 

Additional Inherited Members

- Public Class Methods inherited from CPTPlot
(nonnull id+ nilData
 A unique marker object used in collections to indicate that the datasource returned nil. More...
 
- Public Class Methods inherited from CALayer
(id+ layer
 
- Public Class Methods inherited from NSObject
(id+ alloc
 
(Class+ class
 
(void) + initialize
 
(void) + load
 
(id+ new
 
- Public Class Methods inherited from <NSKeyValueBindingCreation>
(void) + exposeBinding:
 
- Public Class Methods inherited from <NSSecureCoding>
(BOOL+ supportsSecureCoding:
 

Detailed Description

A two-dimensional scatter plot.

See also
See Scatter Plot for a list of animatable properties.
See Scatter Plot Bindings for a list of supported binding identifiers.

Method Documentation

◆ addAreaFillBand:

- (void) addAreaFillBand: (nullable CPTLimitBand *)  limitBand

Add an area fill limit band.

The band will be drawn on top of the areaFill between the plot line and the areaBaseValue.

Parameters
limitBandThe new limit band.

◆ indexOfVisiblePointClosestToPlotAreaPoint:

- (NSUInteger) indexOfVisiblePointClosestToPlotAreaPoint: (CGPoint viewPoint

Returns the index of the closest visible point to the point passed in.

Parameters
viewPointThe reference point.
Returns
The index of the closest point, or NSNotFound if there is no visible point.

◆ initWithFrame:

- (nonnull instancetype) initWithFrame: (CGRect newFrame
implementation

Initializes a newly allocated CPTScatterPlot object with the provided frame rectangle.

This is the designated initializer. The initialized layer will have the following properties:

Parameters
newFrameThe frame rectangle.
Returns
The initialized CPTScatterPlot object.

Reimplemented from CPTPlot.

◆ plotAreaPointOfVisiblePointAtIndex:

- (CGPoint) plotAreaPointOfVisiblePointAtIndex: (NSUInteger idx

Returns the plot area view point of a visible point.

Parameters
idxThe index of the point.
Returns
The view point of the visible point at the index passed.

◆ plotSymbolForRecordIndex:

- (nullable CPTPlotSymbol *) plotSymbolForRecordIndex: (NSUInteger idx

Returns the plot symbol to use for a given index.

Parameters
idxThe index of the record.
Returns
The plot symbol to use, or nil if no plot symbol should be drawn.

◆ plotWasLineHitByInteractionPoint:

- (BOOL) plotWasLineHitByInteractionPoint: (CGPoint interactionPoint
implementation

◆ pointingDeviceDownEvent:atPoint:

- (BOOL) pointingDeviceDownEvent: (nonnull CPTNativeEvent *)  event
atPoint: (CGPoint interactionPoint 
implementation

Informs the receiver that the user has pressed the mouse button.

If this plot has a delegate that responds to the -scatterPlot:plotSymbolTouchDownAtRecordIndex: or -scatterPlot:plotSymbolTouchDownAtRecordIndex:withEvent: or -scatterPlot:plotSymbolWasSelectedAtRecordIndex: or -scatterPlot:plotSymbolWasSelectedAtRecordIndex:withEvent: methods, the data points are searched to find the index of the one closest to the interactionPoint. The 'touchDown' delegate method(s) will be called and this method will return YES if the interactionPoint is within the plotSymbolMarginForHitDetection of the closest data point. Then, if no plot symbol was hit or allowSimultaneousSymbolAndPlotSelection is YES and if this plot has a delegate that responds to the -scatterPlotDataLineTouchDown: or -scatterPlot:dataLineTouchDownWithEvent: or -scatterPlotDataLineWasSelected: or -scatterPlot:dataLineWasSelectedWithEvent: methods and the interactionPoint falls within plotLineMarginForHitDetection points of the plot line, then the 'dataLineTouchDown' delegate method(s) will be called and this method will return YES. This method returns NO if the interactionPoint is not within plotSymbolMarginForHitDetection points of any of the data points or within plotLineMarginForHitDetection points of the plot line.

Parameters
eventThe OS event.
interactionPointThe coordinates of the interaction.
Returns
Whether the event was handled or not.

Reimplemented from CPTPlot.

◆ pointingDeviceUpEvent:atPoint:

- (BOOL) pointingDeviceUpEvent: (nonnull CPTNativeEvent *)  event
atPoint: (CGPoint interactionPoint 
implementation

Informs the receiver that the user has released the mouse button.

If this plot has a delegate that responds to the -scatterPlot:plotSymbolTouchDownAtRecordIndex: or -scatterPlot:plotSymbolTouchDownAtRecordIndex:withEvent: or -scatterPlot:plotSymbolWasSelectedAtRecordIndex: or -scatterPlot:plotSymbolWasSelectedAtRecordIndex:withEvent: methods, the data points are searched to find the index of the one closest to the interactionPoint. The 'touchDown' delegate method(s) will be called and this method will return YES if the interactionPoint is within the plotSymbolMarginForHitDetection of the closest data point. Then, if no plot symbol was hit or allowSimultaneousSymbolAndPlotSelection is YES and if this plot has a delegate that responds to the -scatterPlotDataLineTouchUp: or -scatterPlot:dataLineTouchUpWithEvent: or -scatterPlotDataLineWasSelected: or -scatterPlot:dataLineWasSelectedWithEvent: methods and the interactionPoint falls within plotLineMarginForHitDetection points of the plot line, then the 'dataLineTouchUp' delegate method(s) will be called and this method will return YES. This method returns NO if the interactionPoint is not within plotSymbolMarginForHitDetection points of any of the data points or within plotLineMarginForHitDetection points of the plot line.

Parameters
eventThe OS event.
interactionPointThe coordinates of the interaction.
Returns
Whether the event was handled or not.

Reimplemented from CPTPlot.

◆ reloadPlotSymbols

- (void) reloadPlotSymbols

Reload all plot symbols from the data source immediately.

◆ reloadPlotSymbolsInIndexRange:

- (void) reloadPlotSymbolsInIndexRange: (NSRange indexRange

Reload plot symbols in the given index range from the data source immediately.

Parameters
indexRangeThe index range to load.

◆ removeAreaFillBand:

- (void) removeAreaFillBand: (nullable CPTLimitBand *)  limitBand

Remove an area fill limit band.

Parameters
limitBandThe limit band to be removed.

Property Documentation

◆ allowSimultaneousSymbolAndPlotSelection

- (BOOL) allowSimultaneousSymbolAndPlotSelection
readwritenonatomicassign

YES if both symbol selection and line selection can happen on the same upEvent. If NO then when an upEvent occurs on a symbol only the symbol will be selected, otherwise the line will be selected if the upEvent occured on the line.

Default is NO.

◆ areaFill

- (nullable CPTFill *) areaFill
readwritenonatomiccopy

The fill style for the area underneath the data line. If nil, the area is not filled.

◆ areaFill2

- (nullable CPTFill *) areaFill2
readwritenonatomiccopy

The fill style for the area above the data line. If nil, the area is not filled.

◆ areaFillBands

- (nullable CPTLimitBandArray *) areaFillBands
readnonatomicassign

An array of CPTLimitBand objects.

The limit bands are drawn between the plot line and areaBaseValue and on top of the areaFill.

◆ dataLineStyle

- (nullable CPTLineStyle *) dataLineStyle
readwritenonatomiccopy

The line style for the data line. If nil, the line is not drawn.

◆ newDataLinePath

- (nonnull CGPathRef) newDataLinePath
readnonatomicassign

The path used to draw the data line. The caller must release the returned path.

◆ plotLineMarginForHitDetection

- (CGFloat) plotLineMarginForHitDetection
readwritenonatomicassign

A margin added to each side of a plot line when determining whether it has been hit.

Default is four points to each side of the line. The margin is set in plot area view coordinates.

◆ plotSymbol

- (nullable CPTPlotSymbol *) plotSymbol
readwritenonatomiccopy

The plot symbol drawn at each point if the data source does not provide symbols. If nil, no symbol is drawn.

◆ plotSymbolMarginForHitDetection

- (CGFloat) plotSymbolMarginForHitDetection
readwritenonatomicassign

A margin added to each side of a symbol when determining whether it has been hit.

Default is zero. The margin is set in plot area view coordinates.


The documentation for this class was generated from the following files: