AmRadarChart

Type class

Extension for AmCoordinateChart to create radar/polar charts.

Example

```js var chart = AmCharts.makeChart("chartdiv",{ "type": "radar", "categoryField": "category", "graphs": [ { "valueField": "value" } ], "valueAxes": [ { "axisTitleOffset": 20, "minimum": 0, "axisAlpha": 0.15, "dashLength": 3 } ], "dataProvider": [ { "category": "Category 1", "value": 156.9 }, { "category": "Category 2", "value": 131.1 }, { "category": "Category 3", "value": 115.8 }, { "category": "Category 4", "value": 109.9 }, { "category": "Category 5", "value": 108.3 }, { "category": "Category 6", "value": 99 } ] });```

Sources

This information about AmRadarChart is provided for reference only and is not available through exported packages and thus should not be imported or used on its own.

Inheritance

AmRadarChart extends AmCoordinateChart.

AmRadarChart is not extended by any other symbol.

Properties

#categoryField

Type string

Field in your data provider containing categories.

#marginBottom

Type numberDefault 0

Bottom margin of the chart.

#marginLeft

Type numberDefault 0

Left margin of the chart.

#marginRight

Type numberDefault 0

Right margin of the chart.

#marginTop

Type numberDefault 0

Top margin of the chart.

#radius

Type number/stringDefault 35%

Radius of a radar.

56 inherited items

#accessible

Type booleanDefault trueInherited from AmChart

When enabled, chart adds aria-label attributes to columns, bullets or map objects. You can control values of these labels using properties like accessibleLabel of AmGraph. Note, not all screen readers support these tags. We tested this mostly with NVDA Screen reader. WAI-ARIA is now official W3 standard, so in future more readers will handle this well. We will be improving accessibility on our charts, so we would be glad to hear your feedback.

#accessibleDescription

Type stringInherited from AmChart

Description which will be added to node of SVG element. Most of the screen readers will read this description.

#accessibleTitle

Type stringInherited from AmChart

Description which is added to of a SVG element. Some of the screen readers will read this description.

#addClassNames

Type booleanDefault falseInherited from AmChart

Specifies, if class names should be added to chart elements.

#allLabels

Type Label[]Default []Inherited from AmChart

Array of Labels. Example of label object, with all possible properties:

{"x": 20, "y": 20, "text": "this is label", "align": "left", "size": 12, "color": "#CC0000", "alpha": 1, "rotation": 0, "bold": true, "url": "http://www.amcharts.com"}

#autoDisplay

Type booleanDefault falseInherited from AmChart

If you set it to true the chart will automatically monitor changes of display style of chart’s container (or any of it’s parents) and will render chart correctly if it is changed from none to block. We recommend setting it to true if you change this style at a run time, as it affects performance a bit.

#autoResize

Type booleanDefault trueInherited from AmChart

Set this to false if you don't want chart to resize itself whenever its parent container size changes.

#autoTransform

Type booleanDefault falseInherited from AmChart

If you set it to true and your chart div (or any of the parent div) has css scale applied, the chart will position mouse at a correct position. Default value is false because this operation consumes some CPU and quite a few people are using css transfroms.

#backgroundAlpha

Type numberDefault 0Inherited from AmChart

Opacity of background. Set it to >0 value if you want backgroundColor to work. However we recommend changing div's background-color style for changing background color.

#backgroundColor

Type colorDefault #FFFFFFInherited from AmChart

Background color. You should set backgroundAlpha to >0 value in order background to be visible. We recommend setting background color directly on a chart's DIV instead of using this property.

#balloon

Type AmBalloonDefault AmBalloonInherited from AmChart

The chart creates AmBalloon class itself. If you want to customize balloon, get balloon instance using this property, and then change balloon's properties.

#borderAlpha

Type numberDefault 0Inherited from AmChart

Opacity of chart's border. Value range is 0 - 1.

#borderColor

Type colorDefault #000000Inherited from AmChart

Color of chart's border. You should set borderAlpha >0 in order border to be visible. We recommend setting border color directly on a chart's DIV instead of using this property.

#classNamePrefix

Type stringDefault amchartsInherited from AmChart

This prefix is added to all class names which are added to all visual elements of a chart in case addClassNames is set to true.

#color

Type colorDefault #000000Inherited from AmChart

Text color.

#colors

Type color[]Default [ "#FF6600", "#FCD202", "#B0DE09", "#0D8ECF", "#2A0CD0", "#CD0D74", "#CC0000", "#00CC00", "#0000CC", "#DDDDDD", "#999999", "#333333", "#990000" ]Inherited from AmCoordinateChart

Specifies the colors of the graphs if the lineColor of a graph is not set. If there are more graphs then colors in this array, the chart picks a random color.

#creditsPosition

Type stringDefault top-leftInherited from AmChart

Non-commercial version only. Specifies position of link to amCharts site. Allowed values are: top-left, top-right, bottom-left and bottom-right.

#dataProvider

Type object[]Inherited from AmChart

Array of data objects, for example: [{country:"US", value:524},{country:"UK", value:624},{country:"Lithuania", value:824}]. You can have any number of fields and use any field names. In case of AmMap, data provider should be MapData object.

The data set data.

Important: if you are using date/time-based category axis, the data points needs to come pre-ordered in ascending order. Data with incorrect order might result in visual and functional glitches on the chart.

#decimalSeparator

Type stringDefault .Inherited from AmChart

Decimal separator.

#defs

Type objectInherited from AmChart

Using this property you can add any additional information to SVG, like SVG filters or clip paths. The structure of this object should be identical to XML structure of a object you are adding, only in JSON format.

#export

Type objectInherited from AmChart

Export config. Specifies how export to image/data export/print/annotate menu will look and behave. You can find a lot of examples in amcharts/plugins/export folder. More details can be found here.

#fontFamily

Type stringDefault VerdanaInherited from AmChart

Font family.

#fontSize

Type numberDefault 11Inherited from AmChart

Font size.

#graphs

Type AmGraph[]Inherited from AmCoordinateChart

The array of graphs belonging to this chart.

#gridAboveGraphs

Type booleanDefault falseInherited from AmCoordinateChart

Specifies if grid should be drawn above the graphs or below. Will not work properly with 3D charts.

#guides

Type Guide[]Default []Inherited from AmCoordinateChart

Instead of adding guides to the axes, you can push all of them to this array. In case guide has category or date defined, it will automatically will be assigned to the category axis. Otherwise to first value axis, unless you specify a different valueAxis for the guide.

#handDrawn

Type booleanDefault falseInherited from AmChart

If you set this to true, the lines of the chart will be distorted and will produce hand-drawn effect. Try to adjust chart.handDrawScatter and chart.handDrawThickness properties for a more scattered result.

#handDrawScatter

Type numberDefault 2Inherited from AmChart

Defines by how many pixels hand-drawn line (when handDrawn is set to true) will fluctuate.

#handDrawThickness

Type numberDefault 1Inherited from AmChart

Defines by how many pixels line thickness will fluctuate (when handDrawn is set to true).

#hideBalloonTime

Type numberDefault 150Inherited from AmChart

Time, in milliseconds after which balloon is hidden if the user rolls-out of the object. Might be useful for AmMap to avoid balloon flickering while moving mouse over the areas. Note, this is not duration of fade-out. Duration of fade-out is set in AmBalloon class.

#language

Type stringInherited from AmChart

Allows changing language easily. Note, you should include language js file from amcharts/lang or ammap/lang folder and then use variable name used in this file, like chart.language = "de"; Note, for maps this works differently - you use language only for country names, as there are no other strings in the maps application.

#legend

Type AmLegendInherited from AmChart

Legend of a chart.

#listeners

Type object[]Inherited from AmChart

You can add listeners of events using this property. Example: listeners = [{"event":"dataUpdated", "method":handleEvent}];

#panEventsEnabled

Type booleanDefault trueInherited from AmChart

This setting affects touch-screen devices only. If a chart is on a page, and panEventsEnabled are set to true, the page won't move if the user touches the chart first. If a chart is big enough and occupies all the screen of your touch device, the user won’t be able to move the page at all. If you think that selecting/panning the chart or moving/pinching the map is a primary purpose of your users, you should set panEventsEnabled to true, otherwise - false.

#path

Type stringDefault amcharts/Inherited from AmChart

Specifies absolute or relative path to amCharts files, i.e. "amcharts/". (where all .js files are located) If relative URLs are used, they will be relative to the current web page, displaying the chart.

You can also set path globally, using global JavaScript variable AmCharts_path. If this variable is set, and "path" is not set in chart config, the chart will assume the path from the global variable. This allows setting amCharts path globally. I.e.:

var AmCharts_path = "/libs/amcharts/";```

 "path" parameter will be used by the charts to locate it's files, like images, plugins or patterns.

#pathToImages

Type stringInherited from AmChart

Specifies path to the folder where images like resize grips, lens and similar are.

IMPORTANT: Since V3.14.12, you should use "path" to point to amCharts directory instead. The "pathToImages" will be automatically set and does not need to be in the chart config, unless you keep your images separately from other amCharts files.

#percentPrecision

Type numberDefault 2Inherited from AmChart

Precision of percent values. -1 means percent values won't be rounded at all and show as they are.

#precision

Type numberDefault -1Inherited from AmChart

Precision of values. -1 means values won't be rounded at all and show as they are.

#prefixesOfBigNumbers

Type object[]Default [ { "number": 1000, "prefix": "k" }, { "number": 1000000, "prefix": "M" }, { "number": 1000000000, "prefix": "G" }, { "number": 1000000000000, "prefix": "T" }, { "number": 1000000000000000, "prefix": "P" }, { "number": 1000000000000000000, "prefix": "E" }, { "number": 1e+21, "prefix": "Z" }, { "number": 1e+24, "prefix": "Y" } ]Inherited from AmChart

Prefixes which are used to make big numbers shorter: 2M instead of 2000000, etc. Prefixes are used on value axes and in the legend. To enable prefixes, set usePrefixes property to true.

#prefixesOfSmallNumbers

Type object[]Default [ { "number": 1e-24, "prefix": "y" }, { "number": 1e-21, "prefix": "z" }, { "number": 1e-18, "prefix": "a" }, { "number": 1e-15, "prefix": "f" }, { "number": 1e-12, "prefix": "p" }, { "number": 1e-9, "prefix": "n" }, { "number": 0.000001, "prefix": "μ" }, { "number": 0.001, "prefix": "m" } ]Inherited from AmChart

Prefixes which are used to make small numbers shorter: 2μ instead of 0.000002, etc. Prefixes are used on value axes and in the legend. To enable prefixes, set usePrefixes property to true.

#processCount

Type numberDefault 1000Inherited from AmChart

If processTimeout is > 0, 1000 data items will be parsed at a time, then the chart will make pause and continue parsing data until it finishes.

#processTimeout

Type numberDefault 0Inherited from AmChart

If you set it to 1 millisecond or some bigger value, chart will be built in chunks instead of all at once. This is useful if you work with a lot of data and the initial build of the chart takes a lot of time, which freezes the whole web application by not allowing other processes to do their job while the chart is busy.

#sequencedAnimation

Type booleanDefault trueInherited from AmCoordinateChart

Specifies whether the animation should be sequenced or all objects should appear at once.

#startAlpha

Type numberDefault 1Inherited from AmCoordinateChart

The initial opacity of the column/line. If you set startDuration to a value higher than 0, the columns/lines will fade in from startAlpha. Value range is 0 - 1.

#startDuration

Type numberDefault 0Inherited from AmCoordinateChart

Duration of the animation, in seconds.

#startEffect

Type stringDefault elasticInherited from AmCoordinateChart

Animation effect. Possible values are: easeOutSine, easeInSine, elastic, bounce

#svgIcons

Type booleanDefault trueInherited from AmChart

Charts will use SVG icons (some are loaded from images folder and some are drawn inline) if browser supports SVG. his makes icons look good on retina displays on all resolutions.

#tapToActivate

Type booleanDefault trueInherited from AmChart

Charts which require gestures like swipe (charts with scrollbar/cursor) or pinch (maps) used to prevent regular page scrolling and could result page to stick to the same spot if the chart occupied whole screen. Now, in order these gestures to start working user has to touch the chart/maps once. Regular touch events like touching on the bar/slice/map area do not require the first tap and will show balloons and perform other tasks as usual. If you have a map or chart which occupies full screen and your page does not require scrolling, set tapToActivate to false – this will bring old behavior back.

#theme

Type stringDefault noneInherited from AmChart

Theme of a chart. Config files of themes can be found in amcharts/themes/ folder. More info about using themes.

#thousandsSeparator

Type stringDefault ,Inherited from AmChart

Thousands separator.

#titles

Type Title[]Default []Inherited from AmChart

Array of Title objects.

#touchClickDuration

Type numberDefault 0Inherited from AmChart

If you set it to 200 (milliseconds) or so, the chart will fire clickGraphItem or clickSlice (AmSlicedChart) or clickMapObject only if user holds his/her finger for 0.2 seconds (200 ms) on the column/bullet/slice/map object.

#type

Type stringInherited from AmChart

Type of a chart. Required when creating chart using JSON. Possible types are: serial, pie, xy, radar, funnel, gauge, map, gantt, stock.

#urlTarget

Type stringDefault _selfInherited from AmCoordinateChart

Target of url.

#usePrefixes

Type booleanDefault falseInherited from AmChart

If true, prefixes will be used for big and small numbers. You can set arrays of prefixes via prefixesOfSmallNumbers and prefixesOfBigNumbers properties.

#valueAxes

Type ValueAxis[]Default ValueAxisInherited from AmCoordinateChart

The array of value axes. Chart creates one value axis automatically, so if you need only one value axis, you don't need to create it.

Methods

26 inherited items

#addGraph()

Returns Inherited from AmCoordinateChart

Adds a graph to the chart.

graph - instance of AmGraph

#addLabel()

Returns voidInherited from AmChart

Adds a label on a chart. You can use it for labeling axes, adding chart title, etc. x and y coordinates can be set in number, percent, or a number with ! in front of it - coordinate will be calculated from right or bottom instead of left or top.

x - horizontal coordinate y - vertical coordinate text - label's text align - alignment (left/right/center) size - text size color - text color rotation - angle of rotation alpha - label alpha bold - specifies if text is bold (true/false), url - url of a

#addLegend()

Returns voidInherited from AmChart

Adds a legend to the chart. By default, you don't need to create div for your legend, however if you want it to be positioned in some different way, you can create div anywhere you want and pass id or reference to your div as a second parameter. (NOTE: This method will not work on StockPanel.) legend - AmLegend, legendDivID - id or reference to legend div (optional)

#addListener()

Returns voidInherited from AmChart

Adds event listener to the object.

type - string like 'dataUpdated' (should be listed in 'events' section of this class or classes which extend this class). handler - function which is called when event happens

#addTitle()

Returns voidInherited from AmChart

Adds title to the top of the chart. Pie, Radar positions are updated so that they won't overlap. Plot area of Serial/XY chart is also updated unless autoMargins property is set to false. You can add any number of titles - each of them will be placed in a new line. To remove titles, simply clear titles array: chart.titles = []; and call chart.validateNow() method.

text - text of a title size - font size color - title color alpha - title opacity bold - boolean value indicating if title should be bold.

#addValueAxis()

Returns Inherited from AmCoordinateChart

Adds value axis to the chart. One value axis is created automatically, so if you don't want to change anything or add more value axes, you don't need to add it.

axis - instance of ValueAxis

#animateAgain()

Returns Inherited from AmCoordinateChart

You can trigger the animation of the chart.

#clear()

Returns voidInherited from AmChart

Clears the chart area, intervals, etc.

#clearLabels()

Returns voidInherited from AmChart

Removes all labels added to the chart.

#getGraphById()

Returns AmGraphInherited from AmCoordinateChart

Returns graph by id.

id - graph's id, String

#getValueAxisById()

Returns ValueAxisInherited from AmCoordinateChart

Returns value axis by id.

id - value axis' id, String

#hideGraph()

Returns Inherited from AmCoordinateChart

Hide the graph (if it is visible). Usually this method is called from the Legend, when you click on the legend marker.

graph - instance of AmGraph

#hideGraphsBalloon()

Returns Inherited from AmCoordinateChart

Hide value balloon of a graph. Usually this method is called from the Legend, when you click on the legend text.

graph - instance of AmGraph

#highlightGraph()

Returns Inherited from AmCoordinateChart

Highlight the graph. Usually this method is called from the Legend, when you roll-over the legend entry.

graph - instance of AmGraph

#invalidateSize()

Returns voidInherited from AmChart

Use this method to force the chart to resize to it's current container size.

#makeChart()

Returns chart instanceInherited from AmChart

This method allows to create charts with a single config.

container - id of a DIV or reference of the container element - config contains the whole setup for the chart - delay in milliseconds to delay the initiation of the chart

#removeGraph()

Returns Inherited from AmCoordinateChart

Removes graph from the chart.

graph - instance of AmGraph

#removeLegend()

Returns voidInherited from AmChart

Removes chart's legend.

#removeListener()

Returns voidInherited from AmChart

Removes event listener from chart object.

chart - chart object, type - event name, handler - method

#removeValueAxis()

Returns Inherited from AmCoordinateChart

Removes value axis from the chart. When you remove value axis, all graphs assigned to this axis are also removed.

axis - instance of ValueAxis

#showGraph()

Returns Inherited from AmCoordinateChart

Show the graph (if it is hidden). Usually this method is called from the Legend, when you click on the legend marker.

graph - instance of AmGraph

#showGraphsBalloon()

Returns Inherited from AmCoordinateChart

Show value balloon of a graph. Usually this method is called from the Legend, when you click on the legend text.

graph - instance of AmGraph

#unhighlightGraph()

Returns Inherited from AmCoordinateChart

UnhighlightGraph the graph. Usually this method is called from the Legend, when you roll-out the legend entry.

graph - instance of AmGraph

#validateData()

Returns voidInherited from AmChart

This method should be called after data in your data provider changed or a new array was set to dataProvider. After calling this method the chart will parse data and redraw.

#validateNow()

Returns voidInherited from AmChart

This method should be called after you changed one or more properties of any class. The chart will redraw after this method is called.Both attributes, validateData and skipEvents are optional (false by default).

#write()

Returns voidInherited from AmChart

Adds chart to the specified DIV.

container - id of a DIV or DIV object which will hold the chart

Events

#clickGraph

Param { type: "clickGraph", target: AmRadarChart } & {type:"clickGraph", graph:AmGraph, chart:AmChart, event:MouseEvent}

Dispatched when user clicks on a graph.

#clickGraphItem

Param { type: "clickGraphItem", target: AmRadarChart } & {type:"clickGraphItem", graph:AmGraph, item:GraphDataItem, index:Number, chart:AmChart, event:MouseEvent}

Dispatched when user clicks on the data item (column/bullet)

#rightClickGraphItem

Param { type: "rightClickGraphItem", target: AmRadarChart } & {type:"rightClickGraphItem", graph:AmGraph, item:GraphDataItem, index:Number, chart:AmChart, event:MouseEvent}

Dispatched when user right-clicks on the data item (column/bullet)

#rollOutGraph

Param { type: "rollOutGraph ", target: AmRadarChart } & {type:"rollOutGraph", graph:AmGraph, chart:AmChart, event:MouseEvent}

Dispatched when user rolls-out of a graph.

#rollOutGraphItem

Param { type: "rollOutGraphItem", target: AmRadarChart } & {type:"rollOutGraphItem", graph:AmGraph, item:GraphDataItem, index:Number, chart:AmChart, event:MouseEvent}

Dispatched when user rolls-out of the data item (column/bullet)

#rollOverGraph

Param { type: "rollOverGraph ", target: AmRadarChart } & {type:"rollOverGraph", graph:AmGraph, chart:AmChart, event:MouseEvent}

Dispatched when user rolls-over a graph.

#rollOverGraphItem

Param { type: "rollOverGraphItem", target: AmRadarChart } & {type:"rollOverGraphItem", graph:AmGraph, item:GraphDataItem, index:Number, chart:AmChart, event:MouseEvent}

Dispatched when user rolls-over data item (column/bullet)

#animationFinished

Param { type: "animationFinished", target: AmRadarChart } & {type:"animationFinished", chart:AmChart}

Dispatched when initial chart animations are finished.

#buildStarted

Param { type: "buildStarted", target: AmRadarChart } & {type:"buildStarted", chart:AmChart}

Fired just before the chart starts to build itself for the first time. Note: you might need to set processTimeout to > 0 value in order to register this event properly.

#dataUpdated

Param { type: "dataUpdated", target: AmRadarChart } & {type:"dataUpdated", chart:AmChart}

Dispatched when chart is build for the first time or after validateData() method was called.

#drawn

Param { type: "drawn", target: AmRadarChart } & {type:"drawn", chart:AmChart}

Fired every time chart is drawn or re-drawn - graph toggle, chart area resize, etc.

Please note, that this event will not fire on zoom. Use "zoomed" event instead to catch those events.

#init

Param { type: "init", target: AmRadarChart } & {type:"init", chart:AmChart}

Dispatched when chart is build for the first time.

#rendered

Param { type: "rendered", target: AmRadarChart } & {type:"rendered", chart:AmChart}

Dispatched when the chart is build for the first time and each time after chart.validateNow() method is called and the chart is build.