Charts (Wt::Chart)

A charting library implemented using the Wt Painting system. More...

Classes
class	Wt::Chart::WAbstractChart
	Abstract base class for MVC-based charts. More...
class	Wt::Chart::WAbstractChartModel
	An abstract model for use with Wt's charts. More...
class	Wt::Chart::WAbstractColorMap
	Maps numerical values to colors. More...
class	Wt::Chart::WAbstractDataSeries3D
	Abstract base class for dataseries that can be drawn on a WCartesian3DChart. More...
class	Wt::Chart::WAbstractGridData
	Class representing grid-based data for on a 3D chart. More...
class	Wt::Chart::WAxis
	Class which represents an axis of a cartesian chart. More...
class	Wt::Chart::WAxisSliderWidget
	A widget for selecting an X axis range to display on an associated WCartesianChart. More...
class	Wt::Chart::WCartesian3DChart
	A 3D Cartesian chart. More...
class	Wt::Chart::SeriesIterator
	Abstract base class for iterating over series data in a chart. More...
class	Wt::Chart::WCartesianChart
	A cartesian chart. More...
class	Wt::Chart::WChartPalette
	Abstract base class for styling rendered data series in charts. More...
class	Wt::Chart::WDataSeries
	A single data series in a cartesian chart. More...
class	Wt::Chart::WEquidistantGridData
	Class representing grid-based data for on a 3D chart. More...
class	Wt::Chart::WGridData
	Class representing grid-based data for a 3D chart. More...
class	Wt::Chart::WPieChart
	A pie chart. More...
class	Wt::Chart::WScatterData
	Class representing a collection of points for on a 3D chart. More...
class	Wt::Chart::WSelection
	Represents a selection on a chart. More...
class	Wt::Chart::WStandardChartProxyModel
	A WAbstractChartModel implementation that wraps a WAbstractItemModel. More...
class	Wt::Chart::WStandardPalette
	Standard styling for rendering series in charts. More...

Typedefs
typedef std::map< WFlags< KeyboardModifier >, InteractiveAction >	Wt::Chart::WheelActions
	A map of mouse wheel actions for interactive charts, indexed by WFlags<KeyboardModifier> More...

Enumerations

Detailed Description

A charting library implemented using the Wt Painting system.

The charting library contains two main chart widget classes, WCartesianChart and WPieChart, and a number of utility classes for drawing simple to complex charts.

Typedef Documentation

typedef std::map<WFlags<KeyboardModifier>, InteractiveAction> Wt::Chart::WheelActions

A map of mouse wheel actions for interactive charts, indexed by WFlags<KeyboardModifier>

See also

WCartesianChart::setWheelActions(WheelActions)

WCartesianChart::wheelActions()

Enumeration Type Documentation

enum Wt::Chart::Axis

Enumeration that indicates a chart axis.

See also

WCartesianChart::axis(Axis)

Enumerator
XAxis	X axis.
YAxis	First Y axis (== Y1Axis).
Y1Axis	First Y axis (== YAxis).
Y2Axis	Second Y Axis.
OrdinateAxis	Ordinate axis (== Y1Axis for a 2D plot).
XAxis_3D	X axis on 3D chart.
YAxis_3D	Y axis on 3D chart.
ZAxis_3D	Z axis on 3D chart.

enum Wt::Chart::AxisScale

Enumeration that indicates a scale for an axis.

The scale determines how values are mapped onto an axis.

See also

WAxis::setScale(AxisScale scale)

Enumerator
CategoryScale	A category scale is set as the scale for the X axis in a CategoryChart, and is only applicable there. It lists all values, evenly spaced, and consecutively in the order of the model. The categories are converted to numbers using their ordinal (first category = 0, second = 1, ...).
LinearScale	A linear scale is the default scale for all axes, except for the X scale in a CategoryScale. It maps values in a linear fashion on the axis.
LogScale	A logarithmic scale is useful for plotting values with of a large range, but only works for positive values.
DateScale	A date scale is a special linear scale, which is useful for the X axis in a ScatterPlot, when the X series contain dates (of type WDate). The dates are converted to numbers, as Julian Days.
DateTimeScale	A datetime scale is a special linear scale, which is useful for the X axis in a ScatterPlot, when the X series contain timedates (of type WDateTime). The dates are converted to numbers, as the number of seconds since the Unix Epoch (midnight Coordinated Universal Time (UTC) of January 1, 1970).

enum Wt::Chart::AxisValue

Enumeration that indicates a logical location for an axis.

The location is dependent on the values of the other axis.

See also

WAxis::setLocation(AxisValue)

Enumerator
MinimumValue	At the minimum value.
MaximumValue	At the maximum value.
ZeroValue	At the zero value (if displayed).
BothSides	At both sides (MinimumValue and MaximumValue).

enum Wt::Chart::ChartType

Enumeration type that indicates a chart type for a cartesian chart.

Enumerator
CategoryChart	The X series are categories.
ScatterPlot	The X series must be interpreted as numerical data.

enum Wt::Chart::ChartUpdates

Lists the different ways that a chart can be updated.

Enumerator
CameraMatrix	Camera matrix.
GLContext	GL context.
GLTextures	GL textures.

enum Wt::Chart::FillRangeType

Enumeration that specifies how an area should be filled.

Data series of type LineSeries or CurveSerie may be filled under or above the line or curve. This enumeration specifies the other limit of this fill. Data series of type BarSeries can use this setting to configure the bottom of the chart.

See also

WDataSeries::setFillRange(FillRangeType range)

WCartesianChart

Enumerator
NoFill	Do not fill under the curve.
MinimumValueFill	Fill from the curve to the chart bottom (min)
MaximumValueFill	Fill from the curve to the chart top.
ZeroValueFill	Fill from the curve to the zero Y value.

enum Wt::Chart::InteractiveAction

Enumeration of mouse wheel actions for interactive charts.

See also

WCartesianChart::WheelActions

WCartesianChart::setWheelActions(WheelActions)

Enumerator
ZoomX	Zoom x-axis.
ZoomY	Zoom y-axis.
ZoomXY	Zoom along both x and y-axes.
ZoomMatching	Zoom y-axis on vertical scroll, x-axis on horizontal scroll.
PanX	Pan x-axis.
PanY	Pan y-axis.
PanMatching	Pan y-axis on vertical scroll, x-axis on horizontal scroll.

enum Wt::Chart::LabelOption

Enumeration that specifies options for the labels.

See also

WPieChart::setDisplayLabels(WFlags<LabelOption>)

Enumerator
NoLabels	Do not display labels (default).
Inside	Display labels inside each segment.
Outside	Display labels outside each segment.
TextLabel	Display the label text.
TextPercentage	Display the value (as percentage)

enum Wt::Chart::LegendLocation

Enumeration type that indicates a legend location.

Enumerator
LegendInside	Inside the chart area.
LegendOutside	Outside the chart area (in the padding area)

enum Wt::Chart::MarkerType

Enumeration that specifies a type of point marker.

See also

WDataSeries::setMarker(MarkerType marker)

WCartesianChart

Enumerator
NoMarker	Do not draw point markers.
SquareMarker	Mark points using a square.
CircleMarker	Mark points using a circle.
CrossMarker	Mark points using a cross (+).
XCrossMarker	Mark points using a cross (x).
TriangleMarker	Mark points using a triangle.
CustomMarker	Mark points using a custom marker.
StarMarker	Mark points using a star.
InvertedTriangleMarker	Mark points using an inverted (upside-down) triangle.
AsteriskMarker	Mark points using an asterisk (*).
DiamondMarker	Mark points using a diamond.

enum Wt::Chart::Plane

Lists the three orthogonal planes in 3D.

Enumerator
XY_Plane	X/Y Plane.
XZ_Plane	X/Z Plane.
YZ_Plane	Y/Z Plane.

enum Wt::Chart::Series3DType

Enumeration with the possible representations of a WAbstractGridData.

Enumerator
PointSeries3D	Series rendered as points.
SurfaceSeries3D	Series rendered as a surface.
BarSeries3D	Series rendered as bars.

enum Wt::Chart::SeriesType

Enumeration that specifies the type of a chart series.

See also

WDataSeries::setType(SeriesType)

WCartesianChart

Enumerator
PointSeries	Series rendered solely as point markers.
LineSeries	Series rendered as points connected by straight lines.
CurveSeries	Series rendered as points connected by curves.
BarSeries	Series rendered as bars.