Class charts.BaseChart

A base class of all visualization charts.
Defined in: BaseChart.js.

Class Summary
Constructor Attributes	Constructor Name and Description
	charts.BaseChart(container) A base class of all visualization charts.

Field Summary
Field Attributes	Field Name and Description
	container The reference to HTML chart container.
<static>	charts.BaseChart.DEFAULT_COLORS List of default colors.
	defaults Defaults chart options.
	tooltip Instance of `charts.Tooltip`.

Method Summary
Method Attributes	Method Name and Description
	draw(data, opt_options) Draws the chart based on `data` and `opt_options`.
	drawContent(content, opt_width, opt_height) Draws content into `this.container` as `innerHTML`.
	getDataColumns(data) Extracts columns from `data`.
	getDataRange(data, opt_column) Gets data range with min and max values.
	getDataRows(data) Extracts rows from `data`.
	getMaxValue(data) Gets max value.
	getMinValue(data) Gets min value.
	getOptions(opt_options) Gets chart's options merged with defaults chart's options.

Class Detail

charts.BaseChart(container)

A base class of all visualization charts.

Parameters:
{string|Element} container: The HTML container.

Requires:: charts.Tooltip; util.Object

Field Detail

container

The reference to HTML chart container.

<static> charts.BaseChart.DEFAULT_COLORS

List of default colors.

defaults

Defaults chart options.

{
  'font': {'family': 'Arial', 'size': 13},
  'opacity': 0.8,
  'colors': [list of colors]
}

See:: charts.BaseChart#getOptions

tooltip

Instance of charts.Tooltip.

See:: charts.Tooltip

Method Detail

draw(data, opt_options)

Draws the chart based on data and opt_options. Abstract method, should be overwritten in nested classes. All overwritten methods should be exported for closure compiler.

Parameters:
{!Array.} data: A chart data.
{Object=} opt_options: A optional chart's configuration options.

drawContent(content, opt_width, opt_height)

Draws content into this.container as innerHTML.

Parameters:
{string} content: SVG or VML markup content.
{number=} opt_width: Optional chart width.
{number=} opt_height: Optional chart height.

{!Array.} getDataColumns(data)

Extracts columns from data.

Parameters:
{Array.} data: The chart data.

Returns:: {!Array.} Returns data columns.

{!Array.} getDataRange(data, opt_column)

Gets data range with min and max values.

Parameters:
{Array.} data: The chart data.
{number=} opt_column: Optional columns index starting from.

Returns:: {!Array.} Returns range as [min, max] array.

{!Array.} getDataRows(data)

Extracts rows from data.

Parameters:
{Array.} data: The chart data.

Returns:: {!Array.} Returns cloned data rows.

{number} getMaxValue(data)

Gets max value.

Parameters:
{Array.} data: The chart data.

Returns:: {number} Returns max value.

{number} getMinValue(data)

Gets min value.

Parameters:
{Array.} data: The chart data.

Returns:: {number} Returns min value.

{!Object.} getOptions(opt_options)

Gets chart's options merged with defaults chart's options.

Parameters:
{Object.=} opt_options: Options map.

Returns:: {!Object.} A map of name/value pairs.

See:: charts.BaseChart#defaults

Classes

Class charts.BaseChart