QCP Namespace Reference

Enumerations
enum	ResolutionUnit
enum	ExportPen
enum	SignDomain
enum	MarginSide
enum	AntialiasedElement
enum	PlottingHint
enum	Interaction
enum	SelectionRectMode
enum	SelectionType

Functions
bool	isInvalidData (double value)
bool	isInvalidData (double value1, double value2)
void	setMarginValue (QMargins &margins, QCP::MarginSide side, int value)
int	getMarginValue (const QMargins &margins, QCP::MarginSide side)

Variables
const QMetaObject	staticMetaObject

Detailed Description

The QCP Namespace contains general enums, QFlags and functions used throughout the QCustomPlot library.

It provides QMetaObject-based reflection of its enums and flags via QCP::staticMetaObject.

Enumeration Type Documentation

ResolutionUnit

enum QCP::ResolutionUnit

Defines the different units in which the image resolution can be specified in the export functions.

See also

QCustomPlot::savePng, QCustomPlot::saveJpg, QCustomPlot::saveBmp, QCustomPlot::saveRastered

Enumerator
ruDotsPerMeter	Resolution is given in dots per meter (dpm)
ruDotsPerCentimeter	Resolution is given in dots per centimeter (dpcm)
ruDotsPerInch	Resolution is given in dots per inch (DPI/PPI)

ExportPen

enum QCP::ExportPen

Defines how cosmetic pens (pens with numerical width 0) are handled during export.

See also

QCustomPlot::savePdf

Enumerator
epNoCosmetic	Cosmetic pens are converted to pens with pixel width 1 when exporting.
epAllowCosmetic	Cosmetic pens are exported normally (e.g. in PDF exports, cosmetic pens always appear as 1 pixel on screen, independent of viewer zoom level)

SignDomain

enum QCP::SignDomain

Represents negative and positive sign domain, e.g. for passing to QCPAbstractPlottable::getKeyRange and QCPAbstractPlottable::getValueRange.

This is primarily needed when working with logarithmic axis scales, since only one of the sign domains can be visible at a time.

Enumerator
sdNegative	The negative sign domain, i.e. numbers smaller than zero.
sdBoth	Both sign domains, including zero, i.e. all numbers.
sdPositive	The positive sign domain, i.e. numbers greater than zero.

MarginSide

enum QCP::MarginSide

Defines the sides of a rectangular entity to which margins can be applied.

See also

QCPLayoutElement::setAutoMargins, QCPAxisRect::setAutoMargins

Enumerator
msLeft	0x01 left margin
msRight	0x02 right margin
msTop	0x04 top margin
msBottom	0x08 bottom margin
msAll	0xFF all margins
msNone	0x00 no margin

AntialiasedElement

enum QCP::AntialiasedElement

Defines what objects of a plot can be forcibly drawn antialiased/not antialiased. If an object is neither forcibly drawn antialiased nor forcibly drawn not antialiased, it is up to the respective element how it is drawn. Typically it provides a setAntialiased function for this.

AntialiasedElements is a flag of or-combined elements of this enum type.

See also

QCustomPlot::setAntialiasedElements, QCustomPlot::setNotAntialiasedElements

Enumerator
aeAxes	0x0001 Axis base line and tick marks
aeGrid	0x0002 Grid lines
aeSubGrid	0x0004 Sub grid lines
aeLegend	0x0008 Legend box
aeLegendItems	0x0010 Legend items
aePlottables	0x0020 Main lines of plottables
aeItems	0x0040 Main lines of items
aeScatters	0x0080 Scatter symbols of plottables (excluding scatter symbols of type ssPixmap)
aeFills	0x0100 Borders of fills (e.g. under or between graphs)
aeZeroLine	0x0200 Zero-lines, see QCPGrid::setZeroLinePen
aeOther	0x8000 Other elements that don't fit into any of the existing categories
aeAll	0xFFFF All elements
aeNone	0x0000 No elements

PlottingHint

enum QCP::PlottingHint

Defines plotting hints that control various aspects of the quality and speed of plotting.

See also

QCustomPlot::setPlottingHints

Enumerator
phNone	0x000 No hints are set
phFastPolylines	0x001 Graph/Curve lines are drawn with a faster method. This reduces the quality especially of the line segment joins, thus is most effective for pen sizes larger than 1. It is only used for solid line pens.
phImmediateRefresh	0x002 causes an immediate repaint() instead of a soft update() when QCustomPlot::replot() is called with parameter QCustomPlot::rpRefreshHint. This is set by default to prevent the plot from freezing on fast consecutive replots (e.g. user drags ranges with mouse).
phCacheLabels	0x004 axis (tick) labels will be cached as pixmaps, increasing replot performance.

Interaction

enum QCP::Interaction

Defines the mouse interactions possible with QCustomPlot.

Interactions is a flag of or-combined elements of this enum type.

See also

QCustomPlot::setInteractions

Enumerator
iNone	0x000 None of the interactions are possible
iRangeDrag	0x001 Axis ranges are draggable (see QCPAxisRect::setRangeDrag, QCPAxisRect::setRangeDragAxes)
iRangeZoom	0x002 Axis ranges are zoomable with the mouse wheel (see QCPAxisRect::setRangeZoom, QCPAxisRect::setRangeZoomAxes)
iMultiSelect	0x004 The user can select multiple objects by holding the modifier set by QCustomPlot::setMultiSelectModifier while clicking
iSelectPlottables	0x008 Plottables are selectable (e.g. graphs, curves, bars,... see QCPAbstractPlottable)
iSelectAxes	0x010 Axes are selectable (or parts of them, see QCPAxis::setSelectableParts)
iSelectLegend	0x020 Legends are selectable (or their child items, see QCPLegend::setSelectableParts)
iSelectItems	0x040 Items are selectable (Rectangles, Arrows, Textitems, etc. see QCPAbstractItem)
iSelectOther	0x080 All other objects are selectable (e.g. your own derived layerables, other layout elements,...)
iSelectPlottablesBeyondAxisRect	0x100 When performing plottable selection/hit tests, this flag extends the sensitive area beyond the axis rect

SelectionRectMode

enum QCP::SelectionRectMode

Defines the behaviour of the selection rect.

See also

QCustomPlot::setSelectionRectMode, QCustomPlot::selectionRect, QCPSelectionRect

Enumerator
srmNone	The selection rect is disabled, and all mouse events are forwarded to the underlying objects, e.g. for axis range dragging.
srmZoom	When dragging the mouse, a selection rect becomes active. Upon releasing, the axes that are currently set as range zoom axes (QCPAxisRect::setRangeZoomAxes) will have their ranges zoomed accordingly.
srmSelect	When dragging the mouse, a selection rect becomes active. Upon releasing, plottable data points that were within the selection rect are selected, if the plottable's selectability setting permits. (See data selection mechanism for details.)
srmCustom	When dragging the mouse, a selection rect becomes active. It is the programmer's responsibility to connect according slots to the selection rect's signals (e.g. QCPSelectionRect::accepted) in order to process the user interaction.

SelectionType

enum QCP::SelectionType

Defines the different ways a plottable can be selected. These images show the effect of the different selection types, when the indicated selection rect was dragged:

stNone

stWhole

stSingleData

stDataRange

stMultipleDataRanges

See also

QCPAbstractPlottable::setSelectable, QCPDataSelection::enforceType

Enumerator
stNone	The plottable is not selectable.
stWhole	Selection behaves like stMultipleDataRanges, but if there are any data points selected, the entire plottable is drawn as selected.
stSingleData	One individual data point can be selected at a time.
stDataRange	Multiple contiguous data points (a data range) can be selected.
stMultipleDataRanges	Any combination of data points/ranges can be selected.

Function Documentation

isInvalidData() [1/2]

bool QCP::isInvalidData ( double  value )

inline

Returns whether the specified value is considered an invalid data value for plottables (i.e. is nan or +/-inf). This function is used to check data validity upon replots, when the compiler flag QCUSTOMPLOT_CHECK_DATA is set.

isInvalidData() [2/2]

bool QCP::isInvalidData ( double  value1, double  value2  )

inline

This is an overloaded function.

Checks two arguments instead of one.

setMarginValue()

void QCP::setMarginValue ( QMargins &  margins, QCP::MarginSide  side, int  value  )

inline

Sets the specified side of margins to value

See also

getMarginValue

getMarginValue()

int QCP::getMarginValue ( const QMargins &  margins, QCP::MarginSide  side  )

inline

Returns the value of the specified side of margins. If side is QCP::msNone or QCP::msAll, returns 0.

See also

setMarginValue