Qwt Polar User's Guide
1.0.1
|
#include <qwt_polar_renderer.h>
Public Member Functions | |
QwtPolarRenderer (QObject *parent=NULL) | |
virtual | ~QwtPolarRenderer () |
void | renderDocument (QwtPolarPlot *, const QString &format, const QSizeF &sizeMM, int resolution=85) |
void | renderDocument (QwtPolarPlot *, const QString &title, const QString &format, const QSizeF &sizeMM, int resolution=85) |
void | renderTo (QwtPolarPlot *, QPrinter &) const |
void | renderTo (QwtPolarPlot *, QPaintDevice &p) const |
virtual void | render (QwtPolarPlot *, QPainter *, const QRectF &rect) const |
Protected Member Functions | |
virtual void | renderTitle (QPainter *, const QRectF &) const |
virtual void | renderLegend (QPainter *, const QRectF &) const |
virtual void | renderLegendItem (QPainter *, const QWidget *, const QRectF &) const |
Renderer for exporting a polar plot to a document, a printer or anything else, that is supported by QPainter/QPaintDevice.
QwtPolarRenderer::QwtPolarRenderer | ( | QObject * | parent = NULL | ) | [explicit] |
Constructor
parent | Parent object |
QwtPolarRenderer::~QwtPolarRenderer | ( | ) | [virtual] |
Destructor.
void QwtPolarRenderer::render | ( | QwtPolarPlot * | plot, |
QPainter * | painter, | ||
const QRectF & | plotRect | ||
) | const [virtual] |
Render the plot to a given rectangle ( f.e QPrinter, QSvgRenderer )
plot | Plot widget to be rendered |
painter | Painter |
plotRect | Bounding rectangle for the plot |
void QwtPolarRenderer::renderDocument | ( | QwtPolarPlot * | plot, |
const QString & | fileName, | ||
const QSizeF & | sizeMM, | ||
int | resolution = 85 |
||
) |
Render a polar plot to a file
The format of the document will be autodetected from the suffix of the filename.
plot | Plot widget |
fileName | Path of the file, where the document will be stored |
sizeMM | Size for the document in millimeters. |
resolution | Resolution in dots per Inch (dpi) |
void QwtPolarRenderer::renderDocument | ( | QwtPolarPlot * | plot, |
const QString & | fileName, | ||
const QString & | format, | ||
const QSizeF & | sizeMM, | ||
int | resolution = 85 |
||
) |
Render a plot to a file
Supported formats are:
plot | Plot widget |
fileName | Path of the file, where the document will be stored |
format | Format for the document |
sizeMM | Size for the document in millimeters. |
resolution | Resolution in dots per Inch (dpi) |
void QwtPolarRenderer::renderLegend | ( | QPainter * | painter, |
const QRectF & | rect | ||
) | const [protected, virtual] |
Render the legend into a given rectangle.
painter | Painter |
rect | Bounding rectangle |
void QwtPolarRenderer::renderLegendItem | ( | QPainter * | painter, |
const QWidget * | widget, | ||
const QRectF & | rect | ||
) | const [protected, virtual] |
Print the legend item into a given rectangle.
painter | Painter |
widget | Widget representing a legend item |
rect | Bounding rectangle |
void QwtPolarRenderer::renderTitle | ( | QPainter * | painter, |
const QRectF & | rect | ||
) | const [protected, virtual] |
Render the title into a given rectangle.
painter | Painter |
rect | Bounding rectangle |
void QwtPolarRenderer::renderTo | ( | QwtPolarPlot * | plot, |
QPrinter & | printer | ||
) | const |
Render the plot to a QPrinter.
This function renders the contents of a QwtPolarPlot instance to QPaintDevice
object. The size is derived from the printer metrics.
plot | Plot to be rendered |
printer | Printer to paint on |
void QwtPolarRenderer::renderTo | ( | QwtPolarPlot * | plot, |
QPaintDevice & | paintDevice | ||
) | const |
Render the plot to a QPaintDevice
.
This function renders the contents of a QwtPolarPlot instance to QPaintDevice
object. The target rectangle is derived from its device metrics.
plot | Plot to be rendered |
paintDevice | device to paint on, f.e a QImage |