A datasource class that automatically creates scatter plot data from a function or Objective-C block. More...

#import <CPTFunctionDataSource.h>

Inheritance diagram for CPTFunctionDataSource:

Collaboration diagram for CPTFunctionDataSource:

Public Class Methods
Factory Methods
(nonnull instancetype)	+ dataSourceForPlot:withFunction:
	Creates and returns a new CPTFunctionDataSource instance initialized with the provided function and plot. More...

(nonnull instancetype)	+ dataSourceForPlot:withBlock:
	Creates and returns a new CPTFunctionDataSource instance initialized with the provided block and plot. More...

Public Class Methods inherited from NSObject
(id)	+ alloc

(Class)	+ class

(void)	+ initialize

(void)	+ load

(id)	+ new

Public Instance Methods
Initialization
(nonnull instancetype)	- initForPlot:withFunction:
	Initializes a newly allocated CPTFunctionDataSource object with the provided function and plot. More...

(nonnull instancetype)	- initForPlot:withBlock:
	Initializes a newly allocated CPTFunctionDataSource object with the provided block and plot. More...

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 <CPTPlotDataSource>
(NSUInteger)	- numberOfRecordsForPlot:
	(Required) The number of data points for the plot. More...

(nullable NSArray *)	- numbersForPlot:field:recordIndexRange:
	(Optional) Gets a range of plot data for the given plot and field. Implement one and only one of the optional methods in this section. More...

(nullable id)	- numberForPlot:field:recordIndex:
	(Optional) Gets a plot data value for the given plot and field. Implement one and only one of the optional methods in this section. More...

(nullable double *)	- doublesForPlot:field:recordIndexRange:
	(Optional) Gets a range of plot data for the given plot and field. Implement one and only one of the optional methods in this section. More...

(double)	- doubleForPlot:field:recordIndex:
	(Optional) Gets a plot data value for the given plot and field. Implement one and only one of the optional methods in this section. More...

(nullable CPTNumericData *)	- dataForPlot:field:recordIndexRange:
	(Optional) Gets a range of plot data for the given plot and field. Implement one and only one of the optional methods in this section. More...

(nullable CPTNumericData *)	- dataForPlot:recordIndexRange:
	(Optional) Gets a range of plot data for all fields of the given plot simultaneously. Implement one and only one of the optional methods in this section. More...

(nullable CPTLayerArray *)	- dataLabelsForPlot:recordIndexRange:
	(Optional) Gets a range of data labels for the given plot. More...

(nullable CPTLayer *)	- dataLabelForPlot:recordIndex:
	(Optional) Gets a data label for the given plot. This method will not be called if -dataLabelsForPlot:recordIndexRange: is also implemented in the datasource. More...

Properties
CPTDataSourceFunction	dataSourceFunction
	The function used to generate plot data. More...

CPTDataSourceBlock	dataSourceBlock
	The Objective-C block used to generate plot data. More...

CPTPlot *	dataPlot
	The plot that will display the function values. Must be an instance of CPTScatterPlot. More...

CGFloat	resolution
	The maximum number of pixels between data points on the plot. Default is `1.0`. More...

CPTPlotRange *	dataRange
	The maximum range of x-values that will be plotted. If nil (the default), the function will be plotted for all visible x-values. More...

Detailed Description

A datasource class that automatically creates scatter plot data from a function or Objective-C block.

Method Documentation

◆ dataSourceForPlot:withBlock:

+ (nonnull instancetype) dataSourceForPlot:	(nonnull CPTPlot *)	plot
withBlock:	(nonnull CPTDataSourceBlock)	block

Creates and returns a new CPTFunctionDataSource instance initialized with the provided block and plot.

Parameters

plot	The plot that will display the function values.
block	The Objective-C block used to generate plot data.

Returns: A new CPTFunctionDataSource instance initialized with the provided block and plot.

◆ dataSourceForPlot:withFunction:

+ (nonnull instancetype) dataSourceForPlot:	(nonnull CPTPlot *)	plot
withFunction:	(nonnull CPTDataSourceFunction)	function

Creates and returns a new CPTFunctionDataSource instance initialized with the provided function and plot.

Parameters

plot	The plot that will display the function values.
function	The function used to generate plot data.

Returns: A new CPTFunctionDataSource instance initialized with the provided function and plot.

◆ initForPlot:withBlock:

- (nonnull instancetype) initForPlot:	(nonnull CPTPlot *)	plot
withBlock:	(nonnull CPTDataSourceBlock)	block

Initializes a newly allocated CPTFunctionDataSource object with the provided block and plot.

Parameters

plot	The plot that will display the function values.
block	The Objective-C block used to generate plot data.

Returns: The initialized CPTFunctionDataSource object.

◆ initForPlot:withFunction:

- (nonnull instancetype) initForPlot:	(nonnull CPTPlot *)	plot
withFunction:	(nonnull CPTDataSourceFunction)	function

Initializes a newly allocated CPTFunctionDataSource object with the provided function and plot.

Parameters

plot	The plot that will display the function values.
function	The function used to generate plot data.

Returns: The initialized CPTFunctionDataSource object.

Property Documentation

◆ dataPlot

- (nonnull CPTPlot *) dataPlot

readnonatomicassign

The plot that will display the function values. Must be an instance of CPTScatterPlot.

◆ dataRange

- (nullable CPTPlotRange *) dataRange

readwritenonatomicstrong

The maximum range of x-values that will be plotted. If nil (the default), the function will be plotted for all visible x-values.

◆ dataSourceBlock

- (nullable CPTDataSourceBlock) dataSourceBlock

readnonatomicassign

The Objective-C block used to generate plot data.

◆ dataSourceFunction

- (nullable CPTDataSourceFunction) dataSourceFunction

readnonatomicassign

The function used to generate plot data.

◆ resolution

- (CGFloat) resolution

readwritenonatomicassign

The maximum number of pixels between data points on the plot. Default is 1.0.

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

Source/CPTFunctionDataSource.h
Source/CPTFunctionDataSource.m

Public Class Methods

Public Instance Methods

Properties

Detailed Description

Method Documentation

◆ dataSourceForPlot:withBlock:

◆ dataSourceForPlot:withFunction:

◆ initForPlot:withBlock:

◆ initForPlot:withFunction:

Property Documentation

◆ dataPlot

◆ dataRange

◆ dataSourceBlock

◆ dataSourceFunction

◆ resolution