class LineChart extends Chart (View source)

LineChart Class

A line chart that is rendered within the browser using SVG or VML. Displays tips when hovering over points.

Traits

Constants

TYPE

Javascript chart type.

VERSION

Javascript chart version.

VIZ_PACKAGE

Javascript chart package.

VIZ_CLASS

Google's visualization class name.

Methods

__construct( Label $chartLabel, DataTable $datatable, array $config = array())

Builds a new LineChart with the given label, datatable and options.

mixed
__get( string $option)

Get the value of a set option via magic method.

from  JsonConfig
getOptions()

Gets the Options object for the JsonConfig

from  JsonConfig
setOption( string $option, mixed $value)

Shortcut method to set the value of an option and return $this.

from  JsonConfig
setOptions( array $config)

Parses the config array by passing the values through each method to check validity against if the option exists.

from  JsonConfig
array
jsonSerialize()

Custom serialization of the JsonConfig object.

from  JsonConfig
string
getType()

Returns the chart type.

from  Chart
bool
hasEvents()

Checks if any events have been assigned to the chart.

from  Chart
getEvents()

Retrieves the events if any have been assigned to the chart.

from  Chart
getLabel()

Returns the chart label.

from  Chart
events( array $events)

Register javascript callbacks for specific events.

from  Chart
datatable( DataTable $datatable)

Assigns a datatable to use for the Chart.

from  Chart
customize( array $optionArray)

Sets any configuration option, with no checks for type / validity

from  Chart
getDataTable()

Returns the DataTable

from  Chart
string
getDataTableJson()

Returns a JSON string representation of the datatable.

from  Chart
string
render( string $elemId)

Outputs the chart javascript into the page.

from  Chart
animation( array $animationConfig)

Set the animation options for a chart.

from  Chart
backgroundColor( array $backgroundColorConfig)

The background color for the main area of the chart.

from  Chart
chartArea( array $chartAreaConfig)

An object with members to configure the placement and size of the chart area (where the chart itself is drawn, excluding axis and legends).

from  Chart
colors( array $colorArray)

The colors to use for the chart elements.

from  Chart
fontSize( integer $fontSize)

The default font size, in pixels, of all text in the chart.

from  Chart
fontName( string $fontName)

The default font face for all text in the chart.

from  Chart
height( int $height)

Height of the chart, in pixels.

from  Chart
legend( array $legendConfig)

An object with members to configure various aspects of the legend.

from  Chart
title( string $title)

Text to display above the chart.

from  Chart
titlePosition( string $titlePosition)

Where to place the chart title, compared to the chart area.

from  Chart
titleTextStyle( TextStyle $textStyle)

An array of options for defining the title text style.

from  Chart
tooltip( array $tooltip)

An object with members to configure various tooltip elements.

from  Chart
width( int $width)

Width of the chart, in pixels.

from  Chart
axisTitlesPosition( string $position)

Where to place the axis titles, compared to the chart area.

curveType( string $curveType)

Controls the curve of the lines when the line width is not zero.

focusTarget( string $focusTarget)

The type of the entity that receives focus on mouse hover.

hAxis( array $horizontalAxisConfig)

An object with members to configure various horizontal axis elements.

interpolateNulls( boolean $interpolateNulls)

Whether to guess the value of missing points.

lineWidth( integer $width)

Data line width in pixels.

pointSize( integer $size)

Diameter of displayed points in pixels.

trendlines( array $trendlineConfigArray)

Defines how the chart trendlines will be displayed.

vAxes( array $vAxisConfigArray)

Specifies properties for individual vertical axes

vAxis( array $verticalAxisConfig)

An object with members to configure various vertical axis elements.

Details

at line 94
__construct( Label $chartLabel, DataTable $datatable, array $config = array())

Builds a new LineChart with the given label, datatable and options.

Parameters

Label $chartLabel Identifying label for the chart.
DataTable $datatable DataTable used for the chart.
array $config

in JsonConfig at line 64
mixed __get( string $option)

Get the value of a set option via magic method.

Parameters

string $option Name of option.

Return Value

mixed

Exceptions

InvalidConfigProperty

in JsonConfig at line 75
Options getOptions()

Gets the Options object for the JsonConfig

Return Value

Options

in JsonConfig at line 90
JsonConfig setOption( string $option, mixed $value)

Shortcut method to set the value of an option and return $this.

In order to maintain backwards compatibility, ConfigObjects will be unwrapped.

Parameters

string $option Option to set.
mixed $value Value of the option.

Return Value

JsonConfig

in JsonConfig at line 106
setOptions( array $config)

Parses the config array by passing the values through each method to check validity against if the option exists.

Parameters

array $config

Exceptions

InvalidConfigValue
InvalidConfigProperty

in JsonConfig at line 275
array jsonSerialize()

Custom serialization of the JsonConfig object.

Return Value

array

in Chart at line 111
string getType()

Returns the chart type.

Return Value

string

in Chart at line 122
bool hasEvents()

Checks if any events have been assigned to the chart.

Return Value

bool

in Chart at line 133
EventManager getEvents()

Retrieves the events if any have been assigned to the chart.

Return Value

EventManager

in Chart at line 145
Label getLabel()

Returns the chart label.

Return Value

Label

in Chart at line 164
Chart events( array $events)

Register javascript callbacks for specific events.

Set with an associative array where the keys are events and the values are the javascript callback functions.

Valid events are: [ animationfinish | error | onmouseover | onmouseout | ready | select | statechange ]

Parameters

array $events Array of events associated to a callback

Return Value

Chart

Exceptions

InvalidConfigValue

in Chart at line 196
Chart datatable( DataTable $datatable)

Assigns a datatable to use for the Chart.

Parameters

DataTable $datatable

Return Value

Chart

in Chart at line 221
Chart customize( array $optionArray)

Sets any configuration option, with no checks for type / validity

This is method was added in 2.5 as a bandaid to remove the handcuffs from users who want to add options that Google has added, that I have not. I didn't intend to restrict the user to only select options, as the goal was to type check and validate. This method can be used to set any option, just pass in arrays with key value pairs for any setting.

If the setting is an object, per the google docs, then use multi-dimensional arrays and they will be converted upon rendering.

Parameters

array $optionArray Array of customization options for the chart

Return Value

Chart

in Chart at line 234
DataTable getDataTable()

Returns the DataTable

Return Value

DataTable

Exceptions

DataTableNotFound

in Chart at line 251
string getDataTableJson()

Returns a JSON string representation of the datatable.

Return Value

string

Exceptions

DataTableNotFound

in Chart at line 271
string render( string $elemId)

Outputs the chart javascript into the page.

Pass in a string of the html elementID that you want the chart to be rendered into.

Parameters

string $elemId The id of an HTML element to render the chart into.

Return Value

string Javascript code blocks

Exceptions

InvalidElementId

in Chart at line 290
Chart animation( array $animationConfig)

Set the animation options for a chart.

Parameters

array $animationConfig Animation options

Return Value

Chart

in Chart at line 304
Chart backgroundColor( array $backgroundColorConfig)

The background color for the main area of the chart.

Can be a simple HTML color string, or hex code, for example: 'red' or '#00cc00'

Parameters

array $backgroundColorConfig Options for the chart's background color

Return Value

Chart

in Chart at line 321
Chart chartArea( array $chartAreaConfig)

An object with members to configure the placement and size of the chart area (where the chart itself is drawn, excluding axis and legends).

Two formats are supported: a number, or a number followed by %. A simple number is a value in pixels; a number followed by % is a percentage.

Parameters

array $chartAreaConfig Options for the chart area.

Return Value

Chart

in Chart at line 338
Chart colors( array $colorArray)

The colors to use for the chart elements.

An array of strings, where each element is an HTML color string for example:['red','#004411']

Parameters

array $colorArray

Return Value

Chart

Exceptions

InvalidConfigValue

in Chart at line 362
Chart fontSize( integer $fontSize)

The default font size, in pixels, of all text in the chart.

You can override this using properties for specific chart elements.

Parameters

integer $fontSize

Return Value

Chart

Exceptions

InvalidConfigValue

in Chart at line 378
Chart fontName( string $fontName)

The default font face for all text in the chart.

You can override this using properties for specific chart elements.

Parameters

string $fontName

Return Value

Chart

Exceptions

InvalidConfigValue

in Chart at line 392
Chart height( int $height)

Height of the chart, in pixels.

Parameters

int $height

Return Value

Chart

Exceptions

InvalidConfigValue

in Chart at line 408
Chart legend( array $legendConfig)

An object with members to configure various aspects of the legend.

To specify properties of this object, pass in an array of valid options.

Parameters

array $legendConfig Options for the chart's legend.

Return Value

Chart

Exceptions

InvalidConfigValue

in Chart at line 422
Chart title( string $title)

Text to display above the chart.

Parameters

string $title

Return Value

Chart

Exceptions

InvalidConfigValue

in Chart at line 441
Chart titlePosition( string $titlePosition)

Where to place the chart title, compared to the chart area.

Supported values: 'in' - Draw the title inside the chart area. 'out' - Draw the title outside the chart area. 'none' - Omit the title.

Parameters

string $titlePosition

Return Value

Chart

Exceptions

InvalidConfigValue

in Chart at line 461
Chart titleTextStyle( TextStyle $textStyle)

An array of options for defining the title text style.

Parameters

TextStyle $textStyle

Return Value

Chart

Exceptions

InvalidConfigValue

in Chart at line 474
Chart tooltip( array $tooltip)

An object with members to configure various tooltip elements.

Parameters

array $tooltip Options for the tooltips

Return Value

Chart

Exceptions

InvalidConfigValue

in Chart at line 486
Chart width( int $width)

Width of the chart, in pixels.

Parameters

int $width

Return Value

Chart

Exceptions

InvalidConfigValue

Chart axisTitlesPosition( string $position)

Where to place the axis titles, compared to the chart area.

Supported values: in - Draw the axis titles inside the the chart area. out - Draw the axis titles outside the chart area. none - Omit the axis titles.

Parameters

string $position Accepted values [in|out|none]

Return Value

Chart

Exceptions

InvalidConfigValue

in CurveTypeTrait at line 18
Chart curveType( string $curveType)

Controls the curve of the lines when the line width is not zero.

Can be one of the following: 'none' - Straight lines without curve. 'function' - The angles of the line will be smoothed.

Parameters

string $curveType Accepted values [none|function]

Return Value

Chart

Exceptions

InvalidConfigValue

in FocusTargetTrait at line 26
Chart focusTarget( string $focusTarget)

The type of the entity that receives focus on mouse hover.

Also affects which entity is selected by mouse click, and which data table element is associated with events. Can be one of the following: 'datum' - Focus on a single data point. Correlates to a cell in the data table. 'category' - Focus on a grouping of all data points along the major axis. Correlates to a row in the data table.

In focusTarget 'category' the tooltip displays all the category values. This may be useful for comparing values of different series.

Parameters

string $focusTarget Accepted values [datum|category]

Return Value

Chart

Exceptions

InvalidConfigValue

in HorizontalAxisTrait at line 18
Chart hAxis( array $horizontalAxisConfig)

An object with members to configure various horizontal axis elements.

To specify properties of this property, create a new HorizontalAxis object, set the values then pass it to this function or to the constructor.

Parameters

array $horizontalAxisConfig

Return Value

Chart

in InterpolateNullsTrait at line 18
Chart interpolateNulls( boolean $interpolateNulls)

Whether to guess the value of missing points.

If true, it will guess the value of any missing data based on neighboring points. If false, it will leave a break in the line at the unknown point.

Parameters

boolean $interpolateNulls

Return Value

Chart

Exceptions

InvalidConfigValue

in LineWidthTrait at line 17
Chart lineWidth( integer $width)

Data line width in pixels.

Use zero to hide all lines and show only the points. You can override values for individual series using the series property.

Parameters

integer $width

Return Value

Chart

Exceptions

InvalidConfigValue

in PointSizeTrait at line 17
Chart pointSize( integer $size)

Diameter of displayed points in pixels.

Use zero to hide all points. You can override values for individual series using the series property.

Parameters

integer $size

Return Value

Chart

Exceptions

InvalidConfigValue

in TrendlinesTrait at line 17
Chart trendlines( array $trendlineConfigArray)

Defines how the chart trendlines will be displayed.

Parameters

array $trendlineConfigArray

Return Value

Chart

Exceptions

InvalidConfigValue

in VerticalAxesTrait at line 25
Chart vAxes( array $vAxisConfigArray)

Specifies properties for individual vertical axes

If the chart has multiple vertical axes. Each child object is a vAxis object, and can contain all the properties supported by vAxis. These property values override any global settings for the same property.

To specify a chart with multiple vertical axes, first define a new axis using series.targetAxisIndex, then configure the axis using vAxes.

Parameters

array $vAxisConfigArray Array of VerticalAxis configuration arrays

Return Value

Chart

Exceptions

InvalidConfigValue

in VerticalAxisTrait at line 18
Chart vAxis( array $verticalAxisConfig)

An object with members to configure various vertical axis elements.

To specify properties of this property, create a new VerticalAxis object, set the values then pass it to this function or to the constructor.

Parameters

array $verticalAxisConfig

Return Value

Chart