qwtplot.3

linux下qt的第三方的一个类

\fBParameters:\fP
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\fIkey\fP Marker key 
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Definition at line 274 of file qwt_plot_marker.cpp.
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References QwtMarker::labelPen().
.SS "QPen QwtPlot::markerLinePen (long key) const"
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a marker's line pen 
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\fBParameters:\fP
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\fIkey\fP Marker key 
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Definition at line 288 of file qwt_plot_marker.cpp.
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References QwtMarker::linePen().
.SS "\fBQwtMarker::LineStyle\fP QwtPlot::markerLineStyle (long key) const"
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\fBReturns:\fP
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a marker's line style 
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\fBParameters:\fP
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\fIkey\fP Marker key 
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Definition at line 302 of file qwt_plot_marker.cpp.
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References QwtMarker::lineStyle().
.SS "void QwtPlot::markerPos (long key, double & mx, double & my) const"
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Get the position of a marker. 
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\fBParameters:\fP
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\fIkey\fP Marker key 
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\fBReturn values:\fP
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\fImx\fP .br
\fImy\fP Marker position 
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Definition at line 318 of file qwt_plot_marker.cpp.
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References QwtPlotMarker::xValue(), and QwtPlotMarker::yValue().
.SS "\fBQwtSymbol\fP QwtPlot::markerSymbol (long key) const"
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\fBReturns:\fP
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a marker's symbol 
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\fBParameters:\fP
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\fIkey\fP Marker key 
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Definition at line 337 of file qwt_plot_marker.cpp.
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References QwtMarker::symbol().
.SS "int QwtPlot::markerXAxis (long key) const"
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\fBReturns:\fP
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the x axis to which a marker is attached 
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\fBParameters:\fP
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\fIkey\fP Marker key 
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Definition at line 351 of file qwt_plot_marker.cpp.
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References QwtPlotMappedItem::xAxis().
.SS "int QwtPlot::markerYAxis (long key) const"
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\fBReturns:\fP
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the y axis to which a marker is attached 
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\fBParameters:\fP
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\fIkey\fP Marker key 
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Definition at line 366 of file qwt_plot_marker.cpp.
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References QwtPlotMappedItem::yAxis().
.SS "QSize QwtPlot::minimumSizeHint () const\fC [virtual]\fP"
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Return a minimum size hint. 
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Definition at line 343 of file qwt_plot.cpp.
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References QwtPlotLayout::minimumSizeHint().
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Referenced by sizeHint().
.SS "bool QwtPlot::outlineEnabled () const"
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\fBReturns:\fP
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\fCTRUE\fP if the outline feature is enabled
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\fBWarning:\fP
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Outlining functionality is obsolete: use \fBQwtPlotPicker\fP or \fBQwtPlotZoomer\fP. 
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Definition at line 876 of file qwt_plot.cpp.
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References QwtPlotCanvas::outlineEnabled().
.SS "const QPen & QwtPlot::outlinePen () const"
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\fBReturns:\fP
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the pen used to draw outlines
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\fBWarning:\fP
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Outlining functionality is obsolete: use \fBQwtPlotPicker\fP or \fBQwtPlotZoomer\fP. 
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Definition at line 887 of file qwt_plot.cpp.
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References QwtPlotCanvas::outlinePen().
.SS "Qwt::Shape QwtPlot::outlineStyle () const"
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\fBReturns:\fP
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the outline style
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\fBWarning:\fP
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Outlining functionality is obsolete: use \fBQwtPlotPicker\fP or \fBQwtPlotZoomer\fP.
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\fBSee also:\fP
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\fBsetOutlineStyle()\fP 
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Definition at line 900 of file qwt_plot.cpp.
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References QwtPlotCanvas::outlineStyle().
.SS "const \fBQwtPlotLayout\fP * QwtPlot::plotLayout () const"
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the plot's layout 
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Definition at line 248 of file qwt_plot.cpp.
.SS "\fBQwtPlotLayout\fP * QwtPlot::plotLayout ()"
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\fBReturns:\fP
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the plot's layout 
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Definition at line 240 of file qwt_plot.cpp.
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Referenced by canvasMap(), and print().
.SS "void QwtPlot::plotMouseMoved (const QMouseEvent & e)\fC [signal]\fP"
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A signal which is emitted when the mouse is moved in the plot canvas.
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\fBWarning:\fP
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Canvas signals are obsolete: use \fBQwtPlotPicker\fP or \fBQwtPlotZoomer\fP.
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The coordinates are pixel values referring to the plot canvas. They can be translated using the canvasMaps. 
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\fBParameters:\fP
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\fIe\fP Mouse event object 
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\fBSee also:\fP
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\fBQwtPlot::canvasMap()\fP 
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.SS "void QwtPlot::plotMousePressed (const QMouseEvent & e)\fC [signal]\fP"
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A signal which is emitted when the mouse is pressed in the plot canvas.
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\fBWarning:\fP
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Canvas signals are obsolete: use \fBQwtPlotPicker\fP or \fBQwtPlotZoomer\fP.
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The coordinates are pixel values referring to the plot canvas. They can be translated using the canvasMaps. 
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\fBParameters:\fP
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\fIe\fP Mouse event object 
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\fBSee also:\fP
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\fBQwtPlot::canvasMap()\fP 
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.SS "void QwtPlot::plotMouseReleased (const QMouseEvent & e)\fC [signal]\fP"
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A signal which is emitted when a mouse button has been released in the plot canvas.
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\fBWarning:\fP
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Canvas signals are obsolete: use \fBQwtPlotPicker\fP or \fBQwtPlotZoomer\fP.
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The coordinates are pixel values referring to the plot canvas. They can be translated using the canvasMaps. 
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\fBParameters:\fP
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\fIe\fP Mouse event object, event coordinates referring to the plot canvas 
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\fBSee also:\fP
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\fBQwtPlot::canvasMap()\fP 
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.SS "void QwtPlot::print (QPainter * painter, const QRect & plotRect, const \fBQwtPlotPrintFilter\fP & pfilter = \fC\fBQwtPlotPrintFilter\fP()\fP) const\fC [virtual]\fP"
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Paint the plot into a given rectangle. Paint the contents of a QwtPlot instance into a given rectangle. 
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\fBParameters:\fP
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\fIpainter\fP Painter 
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\fIplotRect\fP Bounding rectangle 
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\fIpfilter\fP Print filter 
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\fBSee also:\fP
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\fBQwtPlotPrintFilter\fP 
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Definition at line 95 of file qwt_plot_print.cpp.
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References QwtPlotLayout::activate(), QwtPlotPrintFilter::apply(), axis(), axisEnabled(), QwtScale::baseLineDist(), QwtPlotLayout::canvasMargin(), QwtPlotLayout::canvasRect(), QwtScaleDiv::hBound(), QwtPlotLayout::invalidate(), QwtLegend::isEmpty(), QwtScaleDiv::lBound(), QwtPlotLayout::legendRect(), QwtScaleDiv::logScale(), margin(), QwtPainter::metricsMap(), QwtPlotPrintFilter::options(), plotLayout(), printCanvas(), printLegend(), printScale(), printTitle(), QwtPlotPrintFilter::reset(), QwtPainter::resetMetricsMap(), QwtAutoScale::scaleDiv(), QwtPlotLayout::scaleRect(), QwtScale::setBaselineDist(), QwtPainter::setMetricsMap(), QwtScale::startBorderDist(), and QwtPlotLayout::titleRect().
.SS "void QwtPlot::print (QPaintDevice & paintDev, const \fBQwtPlotPrintFilter\fP & pfilter = \fC\fBQwtPlotPrintFilter\fP()\fP) const"
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Print the plot to a \fCQPaintDevice\fP (\fCQPrinter\fP) This function prints the contents of a QwtPlot instance to \fCQPaintDevice\fP object. The size is derived from its device metrics. 
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\fBParameters:\fP
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\fIpaintDev\fP device to paint on, often a printer 
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\fIpfilter\fP print filter 
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\fBSee also:\fP
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\fBQwtPlot::print\fP 
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\fBQwtPlotPrintFilter\fP
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\fBAttention:\fP
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Using a \fCQPrinter\fP in \fCQPrinter::HighResolution\fP mode may expose a bug in the \fCQFontDatabase\fP class in Qt-X11 and Qt-Embedded.
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The problem concerns the font metrics: the height and width of a font should measure 8 times more pixels on a 600 dpi paint device than on a 75 dpi paint device. High resolution print tests on a Mandrake-8.2 system with a 75 dpi screen show (test program available on request):
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Qt finds more fonts with the X Font Server enabled than disabled (use qtconfig). Enabling or disabling the font server has no consequences for the print quality.
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Qt-3.0.7 finds significantly more fonts than its successors and prints well.
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Qt-3.1.2 finds less fonts than Qt-3.0.7 with the X Font Server enabled and prints well.
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Qt-3.2.0 finds less fonts than Qt-3.0.7 and printing only works for rich text. All plain text is printed at 75 dpi instead of 600 dpi. Some standard X Window fonts as 'Helvetica [Adobe]' do not print well as rich text.
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Qt-3.2.1 finds a few more fonts than Qt-3.2.0 and some standard non-scalable X Window fonts as 'Helvetica [Adobe]' do not print well as rich and plain text.
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Qt-3.2.2 still has problems with the same fonts as Qt-3.2.1, but there is improvement (text printed with non-scalable X Windows fonts is barely readable and looks ugly, because Qt gets the font metrics wrong).
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Qt-3.2.3 prints well (but finds less fonts than Qt-3.0.7).
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Recommendations:
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If you can, upgrade Qt-3.2.x to Qt-3.2.3.
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If you cannot, patches for Qt-3.2.1 and Qt-3.2.2 are available on request.
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Do not use Qt-3.2.0.
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Do not use non-scalable fonts for printing, especially if you print to postscript files that are to be included in other documents. 
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Definition at line 72 of file qwt_plot_print.cpp.
.SS "void QwtPlot::printCanvas (QPainter * painter, const QRect & canvasRect, const QwtArray< \fBQwtDiMap\fP > & map, const \fBQwtPlotPrintFilter\fP & pfilter) const\fC [protected, virtual]\fP"
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Print the canvas into a given rectangle.
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\fBParameters:\fP
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\fIpainter\fP Painter 
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\fImap\fP Maps mapping between plot and paint device coordinates 
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\fIcanvasRect\fP Bounding rectangle 
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\fIpfilter\fP Print filter 
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\fBSee also:\fP
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\fBQwtPlotPrintFilter\fP 
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Definition at line 446 of file qwt_plot_print.cpp.
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References canvasBackground(), drawCanvasItems(), QwtPainter::drawRect(), QwtPainter::fillRect(), QwtPlotPrintFilter::options(), and QwtPainter::setClipRect().
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Referenced by print().
.SS "void QwtPlot::printLegend (QPainter * painter, const QRect & rect) const\fC [protected, virtual]\fP"
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Print the legend into a given rectangle.
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\fBParameters:\fP
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\fIpainter\fP Painter 
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\fIrect\fP Bounding rectangle 
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Definition at line 293 of file qwt_plot_print.cpp.
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References QwtDynGridLayout::columnsForWidth(), QwtLegend::contentsWidget(), QwtLegend::isEmpty(), QwtDynGridLayout::iterator(), QwtDynGridLayout::layoutItems(), printLegendItem(), and QwtPainter::setClipRect().
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Referenced by print().
.SS "void QwtPlot::printLegendItem (QPainter * painter, const QWidget * w, const QRect & rect) const\fC [protected, virtual]\fP"
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Print the legend item into a given rectangle.
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\fBParameters:\fP
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\fIpainter\fP Painter 
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\fIw\fP Widget representing a legend item 
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\fIrect\fP Bounding rectangle 
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Definition at line 337 of file qwt_plot_print.cpp.
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References QwtLegendItem::drawItem().
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Referenced by printLegend().
.SS "void QwtPlot::printScale (QPainter * painter, int axis, int startDist, int endDist, int baseDist, const QRect & rect) const\fC [protected, virtual]\fP"
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Paint a scale into a given rectangle. Paint the scale into a given rectangle. 
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\fBParameters:\fP
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\fIpainter\fP Painter 
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\fIaxis\fP Axis 
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\fIstartDist\fP Start border distance 
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\fIendDist\fP End border distance 
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\fIbaseDist\fP Base distance 
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\fIrect\fP Bounding rectangle 
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Definition at line 367 of file qwt_plot_print.cpp.
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References QwtScaleDraw::draw(), QwtScale::drawTitle(), QwtScaleDraw::length(), QwtScale::scaleDraw(), QwtScaleDraw::setGeometry(), QwtScaleDraw::x(), and QwtScaleDraw::y().
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Referenced by print().
.SS "void QwtPlot::printTitle (QPainter * painter, const QRect & rect) const\fC [protected, virtual]\fP"
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Print the title into a given rectangle.
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\fBParameters:\fP
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\fIpainter\fP Painter 
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\fIrect\fP Bounding rectangle 
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Definition at line 274 of file qwt_plot_print.cpp.
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References QwtText::draw(), and QwtText::makeText().
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Referenced by print().
.SS "bool QwtPlot::removeCurve (long key)\fC [slot]\fP"
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remove the curve indexed by key 
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\fBParameters:\fP
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\fIkey\fP Key of the curve 
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Definition at line 317 of file qwt_plot_curve.cpp.
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References autoRefresh(), QwtLegend::findItem(), and updateLayout().
.SS "void QwtPlot::removeCurves ()\fC [slot]\fP"
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Remove all curves. 
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Definition at line 941 of file qwt_plot.cpp.
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References autoRefresh(), and QwtLegend::clear().
.SS "bool QwtPlot::removeMarker (long key)\fC [slot]\fP"
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Remove the marker indexed by key. 
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\fBParameters:\fP
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\fIkey\fP unique key 
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Definition at line 380 of file qwt_plot_marker.cpp.
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References autoRefresh().
.SS "void QwtPlot::removeMarkers ()\fC [slot]\fP"
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Remove all markers. 
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Definition at line 949 of file qwt_plot.cpp.
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References autoRefresh().
.SS "void QwtPlot::replot ()\fC [virtual, slot]\fP"
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Redraw the plot. 
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If the autoReplot option is not set (which is the default) or if any curves are attached to raw data, the plot has to be refreshed explicitly in order to make changes visible.
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\fBSee also:\fP
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\fBsetAutoReplot()\fP 
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\fBWarning:\fP
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Calls \fBcanvas()\fP->repaint, take care of infinite recursions 
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Definition at line 368 of file qwt_plot.cpp.
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References autoReplot(), QwtPlotCanvas::invalidateCache(), setAutoReplot(), and updateAxes().
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Referenced by autoRefresh(), and QwtPlotZoomer::rescale().
.SS "void QwtPlot::resizeEvent (QResizeEvent * e)\fC [protected, virtual]\fP"
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Resize and update internal layout. 
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Definition at line 352 of file qwt_plot.cpp.
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References updateLayout().
.SS "void QwtPlot::setAutoLegend (bool tf)"
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Set or reset the autoLegend option If the autoLegend option is set, a item will be added to the legend whenever a curve is inserted. 
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The autoLegend option is set to FALSE by default, which means that the user has to call enableLegend. 
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\fBParameters:\fP
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\fItf\fP \fCTRUE\fP or \fCFALSE\fP. Defaults to \fCFALSE\fP. 
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\fBSee also:\fP
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\fBQwtPlot::enableLegend()\fP 
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Definition at line 965 of file qwt_plot.cpp.
.SS "void QwtPlot::setAutoReplot (bool tf = \fCTRUE\fP)"
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Set or reset the autoReplot option If the autoReplot option is set, the plot will be updated implicitly by manipulating member functions. Since this may be time-consuming, it is recommended to leave this option switched off and call \fBreplot()\fP explicitly if necessary. 
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The autoReplot option is set to FALSE by default, which means that the user has to call \fBreplot()\fP in order to make changes visible. 
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\fBParameters:\fP
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\fItf\fP \fCTRUE\fP or \fCFALSE\fP. Defaults to \fCTRUE\fP. 
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\fBSee also:\fP
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\fBreplot()\fP 
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Definition at line 188 of file qwt_plot.cpp.
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Referenced by replot().
.SS "void QwtPlot::setAxisAutoScale (int axis)"
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Enable autoscaling for a specified axis. 
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This member function is used to switch back to autoscaling mode after a fixed scale has been set. Autoscaling is enabled by default.
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\fBParameters:\fP
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\fIaxis\fP axis index 
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\fBSee also:\fP
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\fBQwtPlot::setAxisScale()\fP 
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Definition at line 349 of file qwt_plot_axis.cpp.
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References autoRefresh(), axisValid(), and QwtAut