582 lines
14 KiB
Groff
582 lines
14 KiB
Groff
.TH "QwtPlotRenderer" 3 "Sun Jul 18 2021" "Version 6.2.0" "Qwt User's Guide" \" -*- nroff -*-
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.ad l
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.nh
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.SH NAME
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QwtPlotRenderer \- Renderer for exporting a plot to a document, a printer or anything else, that is supported by QPainter/QPaintDevice\&.
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.SH SYNOPSIS
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.br
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.PP
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.PP
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\fC#include <qwt_plot_renderer\&.h>\fP
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.PP
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Inherits QObject\&.
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.SS "Public Types"
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.in +1c
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.ti -1c
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.RI "enum \fBDiscardFlag\fP { \fBDiscardNone\fP = 0x00, \fBDiscardBackground\fP = 0x01, \fBDiscardTitle\fP = 0x02, \fBDiscardLegend\fP = 0x04, \fBDiscardCanvasBackground\fP = 0x08, \fBDiscardFooter\fP = 0x10, \fBDiscardCanvasFrame\fP = 0x20 }"
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.br
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.RI "Discard flags\&. "
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.ti -1c
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.RI "enum \fBLayoutFlag\fP { \fBDefaultLayout\fP = 0x00, \fBFrameWithScales\fP = 0x01 }"
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.br
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.RI "Layout flags\&. "
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.ti -1c
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.RI "typedef QFlags< \fBDiscardFlag\fP > \fBDiscardFlags\fP"
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.br
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.ti -1c
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.RI "typedef QFlags< \fBLayoutFlag\fP > \fBLayoutFlags\fP"
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.br
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.in -1c
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.SS "Public Member Functions"
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.in +1c
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.ti -1c
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.RI "\fBQwtPlotRenderer\fP (QObject *=NULL)"
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.br
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.ti -1c
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.RI "virtual \fB~QwtPlotRenderer\fP ()"
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.br
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.RI "Destructor\&. "
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.ti -1c
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.RI "void \fBsetDiscardFlag\fP (\fBDiscardFlag\fP flag, bool on=true)"
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.br
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.ti -1c
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.RI "bool \fBtestDiscardFlag\fP (\fBDiscardFlag\fP flag) const"
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.br
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.ti -1c
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.RI "void \fBsetDiscardFlags\fP (\fBDiscardFlags\fP flags)"
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.br
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.ti -1c
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.RI "\fBDiscardFlags\fP \fBdiscardFlags\fP () const"
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.br
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.ti -1c
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.RI "void \fBsetLayoutFlag\fP (\fBLayoutFlag\fP flag, bool on=true)"
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.br
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.ti -1c
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.RI "bool \fBtestLayoutFlag\fP (\fBLayoutFlag\fP flag) const"
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.br
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.ti -1c
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.RI "void \fBsetLayoutFlags\fP (\fBLayoutFlags\fP flags)"
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.br
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.ti -1c
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.RI "\fBLayoutFlags\fP \fBlayoutFlags\fP () const"
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.br
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.ti -1c
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.RI "void \fBrenderDocument\fP (\fBQwtPlot\fP *, const QString &fileName, const QSizeF &sizeMM, int resolution=85)"
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.br
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.ti -1c
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.RI "void \fBrenderDocument\fP (\fBQwtPlot\fP *, const QString &fileName, const QString &format, const QSizeF &sizeMM, int resolution=85)"
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.br
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.ti -1c
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.RI "void \fBrenderTo\fP (\fBQwtPlot\fP *, QPrinter &) const"
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.br
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.RI "Render the plot to a QPrinter\&. "
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.ti -1c
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.RI "void \fBrenderTo\fP (\fBQwtPlot\fP *, QPaintDevice &) const"
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.br
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.RI "Render the plot to a \fCQPaintDevice\fP\&. "
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.ti -1c
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.RI "virtual void \fBrender\fP (\fBQwtPlot\fP *, QPainter *, const QRectF &plotRect) const"
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.br
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.ti -1c
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.RI "virtual void \fBrenderTitle\fP (const \fBQwtPlot\fP *, QPainter *, const QRectF &titleRect) const"
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.br
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.ti -1c
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.RI "virtual void \fBrenderFooter\fP (const \fBQwtPlot\fP *, QPainter *, const QRectF &footerRect) const"
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.br
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.ti -1c
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.RI "virtual void \fBrenderScale\fP (const \fBQwtPlot\fP *, QPainter *, QwtAxisId, int startDist, int endDist, int baseDist, const QRectF &scaleRect) const"
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.br
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.RI "Paint a scale into a given rectangle\&. Paint the scale into a given rectangle\&. "
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.ti -1c
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.RI "virtual void \fBrenderCanvas\fP (const \fBQwtPlot\fP *, QPainter *, const QRectF &canvasRect, const \fBQwtScaleMap\fP *maps) const"
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.br
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.ti -1c
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.RI "virtual void \fBrenderLegend\fP (const \fBQwtPlot\fP *, QPainter *, const QRectF &legendRect) const"
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.br
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.ti -1c
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.RI "bool \fBexportTo\fP (\fBQwtPlot\fP *, const QString &documentName, const QSizeF &sizeMM=QSizeF(300, 200), int resolution=85)"
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.br
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.RI "Execute a file dialog and render the plot to the selected file\&. "
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.in -1c
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.SH "Detailed Description"
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.PP
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Renderer for exporting a plot to a document, a printer or anything else, that is supported by QPainter/QPaintDevice\&.
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.PP
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Definition at line 39 of file qwt_plot_renderer\&.h\&.
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.SH "Member Typedef Documentation"
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.PP
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.SS "typedef QFlags<\fBDiscardFlag\fP > \fBQwtPlotRenderer::DiscardFlags\fP"
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An ORed combination of \fBDiscardFlag\fP values\&.
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.PP
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Definition at line 76 of file qwt_plot_renderer\&.h\&.
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.SS "typedef QFlags<\fBLayoutFlag\fP > \fBQwtPlotRenderer::LayoutFlags\fP"
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An ORed combination of \fBLayoutFlag\fP values\&.
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.PP
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Definition at line 94 of file qwt_plot_renderer\&.h\&.
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.SH "Member Enumeration Documentation"
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.PP
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.SS "enum \fBQwtPlotRenderer::DiscardFlag\fP"
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.PP
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Discard flags\&.
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.PP
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\fBEnumerator\fP
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.in +1c
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.TP
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\fB\fIDiscardNone \fP\fP
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Render all components of the plot\&.
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.TP
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\fB\fIDiscardBackground \fP\fP
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Don't render the background of the plot\&.
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.TP
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\fB\fIDiscardTitle \fP\fP
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Don't render the title of the plot\&.
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.TP
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\fB\fIDiscardLegend \fP\fP
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Don't render the legend of the plot\&.
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.TP
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\fB\fIDiscardCanvasBackground \fP\fP
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Don't render the background of the canvas\&.
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.TP
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\fB\fIDiscardFooter \fP\fP
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Don't render the footer of the plot\&.
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.TP
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\fB\fIDiscardCanvasFrame \fP\fP
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Don't render the frame of the canvas
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.PP
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\fBNote\fP
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.RS 4
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This flag has no effect when using style sheets, where the frame is part of the background
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.RE
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.PP
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.PP
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Definition at line 45 of file qwt_plot_renderer\&.h\&.
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.SS "enum \fBQwtPlotRenderer::LayoutFlag\fP"
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.PP
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Layout flags\&.
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.PP
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\fBSee also\fP
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.RS 4
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\fBsetLayoutFlag()\fP, \fBtestLayoutFlag()\fP
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.RE
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.PP
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.PP
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\fBEnumerator\fP
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.in +1c
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.TP
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\fB\fIDefaultLayout \fP\fP
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Use the default layout as on screen\&.
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.TP
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\fB\fIFrameWithScales \fP\fP
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Instead of the scales a box is painted around the plot canvas, where the scale ticks are aligned to\&.
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.PP
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Definition at line 82 of file qwt_plot_renderer\&.h\&.
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.SH "Constructor & Destructor Documentation"
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.PP
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.SS "QwtPlotRenderer::QwtPlotRenderer (QObject * parent = \fCNULL\fP)\fC [explicit]\fP"
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Constructor
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.PP
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\fBParameters\fP
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.RS 4
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\fIparent\fP Parent object
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.RE
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.PP
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.PP
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Definition at line 146 of file qwt_plot_renderer\&.cpp\&.
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.SH "Member Function Documentation"
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.PP
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.SS "\fBQwtPlotRenderer::DiscardFlags\fP QwtPlotRenderer::discardFlags () const"
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.PP
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\fBReturns\fP
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.RS 4
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Flags, indicating what to discard from rendering
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.RE
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.PP
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\fBSee also\fP
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.RS 4
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\fBDiscardFlag\fP, \fBsetDiscardFlags()\fP, \fBsetDiscardFlag()\fP, \fBtestDiscardFlag()\fP
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.RE
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.PP
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.PP
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Definition at line 199 of file qwt_plot_renderer\&.cpp\&.
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.SS "bool QwtPlotRenderer::exportTo (\fBQwtPlot\fP * plot, const QString & documentName, const QSizeF & sizeMM = \fCQSizeF( 300, 200 )\fP, int resolution = \fC85\fP)"
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.PP
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Execute a file dialog and render the plot to the selected file\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIplot\fP Plot widget
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.br
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\fIdocumentName\fP Default document name
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.br
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\fIsizeMM\fP Size for the document in millimeters\&.
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.br
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\fIresolution\fP Resolution in dots per Inch (dpi)
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.RE
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.PP
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\fBReturns\fP
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.RS 4
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True, when exporting was successful
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.RE
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.PP
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\fBSee also\fP
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.RS 4
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\fBrenderDocument()\fP
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.RE
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.PP
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.PP
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Definition at line 1060 of file qwt_plot_renderer\&.cpp\&.
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.SS "\fBQwtPlotRenderer::LayoutFlags\fP QwtPlotRenderer::layoutFlags () const"
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.PP
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\fBReturns\fP
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.RS 4
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Layout flags
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.RE
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.PP
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\fBSee also\fP
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.RS 4
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\fBLayoutFlag\fP, \fBsetLayoutFlags()\fP, \fBsetLayoutFlag()\fP, \fBtestLayoutFlag()\fP
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.RE
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.PP
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.PP
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Definition at line 245 of file qwt_plot_renderer\&.cpp\&.
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.SS "void QwtPlotRenderer::render (\fBQwtPlot\fP * plot, QPainter * painter, const QRectF & plotRect) const\fC [virtual]\fP"
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Paint the contents of a \fBQwtPlot\fP instance into a given rectangle\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIplot\fP Plot to be rendered
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.br
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\fIpainter\fP Painter
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.br
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\fIplotRect\fP Bounding rectangle
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.RE
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.PP
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\fBSee also\fP
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.RS 4
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\fBrenderDocument()\fP, \fBrenderTo()\fP, \fBQwtPainter::setRoundingAlignment()\fP
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.RE
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.PP
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.PP
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Definition at line 482 of file qwt_plot_renderer\&.cpp\&.
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.SS "void QwtPlotRenderer::renderCanvas (const \fBQwtPlot\fP * plot, QPainter * painter, const QRectF & canvasRect, const \fBQwtScaleMap\fP * maps) const\fC [virtual]\fP"
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Render the canvas into a given rectangle\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIplot\fP Plot widget
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.br
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\fIpainter\fP Painter
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.br
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\fImaps\fP Maps mapping between plot and paint device coordinates
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.br
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\fIcanvasRect\fP Canvas rectangle
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.RE
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.PP
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.PP
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Definition at line 831 of file qwt_plot_renderer\&.cpp\&.
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.SS "void QwtPlotRenderer::renderDocument (\fBQwtPlot\fP * plot, const QString & fileName, const QSizeF & sizeMM, int resolution = \fC85\fP)"
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Render a plot to a file
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.PP
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The format of the document will be auto-detected from the suffix of the file name\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIplot\fP Plot widget
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.br
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\fIfileName\fP Path of the file, where the document will be stored
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.br
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\fIsizeMM\fP Size for the document in millimeters\&.
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.br
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\fIresolution\fP Resolution in dots per Inch (dpi)
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.RE
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.PP
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.PP
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Definition at line 261 of file qwt_plot_renderer\&.cpp\&.
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.SS "void QwtPlotRenderer::renderDocument (\fBQwtPlot\fP * plot, const QString & fileName, const QString & format, const QSizeF & sizeMM, int resolution = \fC85\fP)"
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Render a plot to a file
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.PP
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Supported formats are:
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.PP
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.IP "\(bu" 2
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pdf
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.br
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Portable Document Format PDF
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.IP "\(bu" 2
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ps
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.br
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Postcript
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.IP "\(bu" 2
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svg
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.br
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Scalable Vector Graphics SVG
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.IP "\(bu" 2
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all image formats supported by Qt
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.br
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see QImageWriter::supportedImageFormats()
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.PP
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.PP
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Scalable vector graphic formats like PDF or SVG are superior to raster graphics formats\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIplot\fP Plot widget
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.br
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\fIfileName\fP Path of the file, where the document will be stored
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.br
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\fIformat\fP Format for the document
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.br
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\fIsizeMM\fP Size for the document in millimeters\&.
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.br
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\fIresolution\fP Resolution in dots per Inch (dpi)
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.RE
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.PP
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\fBSee also\fP
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.RS 4
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\fBrenderTo()\fP, \fBrender()\fP, \fBQwtPainter::setRoundingAlignment()\fP
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.RE
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.PP
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.PP
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Definition at line 293 of file qwt_plot_renderer\&.cpp\&.
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.SS "void QwtPlotRenderer::renderFooter (const \fBQwtPlot\fP * plot, QPainter * painter, const QRectF & footerRect) const\fC [virtual]\fP"
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Render the footer into a given rectangle\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIplot\fP Plot widget
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.br
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\fIpainter\fP Painter
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.br
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\fIfooterRect\fP Bounding rectangle for the footer
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.RE
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.PP
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.PP
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Definition at line 692 of file qwt_plot_renderer\&.cpp\&.
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.SS "void QwtPlotRenderer::renderLegend (const \fBQwtPlot\fP * plot, QPainter * painter, const QRectF & legendRect) const\fC [virtual]\fP"
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Render the legend into a given rectangle\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIplot\fP Plot widget
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.br
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\fIpainter\fP Painter
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.br
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\fIlegendRect\fP Bounding rectangle for the legend
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.RE
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.PP
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.PP
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Definition at line 711 of file qwt_plot_renderer\&.cpp\&.
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.SS "void QwtPlotRenderer::renderScale (const \fBQwtPlot\fP * plot, QPainter * painter, QwtAxisId axisId, int startDist, int endDist, int baseDist, const QRectF & scaleRect) const\fC [virtual]\fP"
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.PP
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Paint a scale into a given rectangle\&. Paint the scale into a given rectangle\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIplot\fP Plot widget
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.br
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\fIpainter\fP Painter
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.br
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\fIaxisId\fP Axis
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.br
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\fIstartDist\fP Start border distance
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.br
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\fIendDist\fP End border distance
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.br
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\fIbaseDist\fP Base distance
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.br
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\fIscaleRect\fP Bounding rectangle for the scale
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.RE
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.PP
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.PP
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Definition at line 733 of file qwt_plot_renderer\&.cpp\&.
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.SS "void QwtPlotRenderer::renderTitle (const \fBQwtPlot\fP * plot, QPainter * painter, const QRectF & titleRect) const\fC [virtual]\fP"
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Render the title into a given rectangle\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIplot\fP Plot widget
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.br
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\fIpainter\fP Painter
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.br
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\fItitleRect\fP Bounding rectangle for the title
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.RE
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.PP
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.PP
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Definition at line 673 of file qwt_plot_renderer\&.cpp\&.
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.SS "void QwtPlotRenderer::renderTo (\fBQwtPlot\fP * plot, QPaintDevice & paintDevice) const"
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.PP
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Render the plot to a \fCQPaintDevice\fP\&. This function renders the contents of a \fBQwtPlot\fP instance to \fCQPaintDevice\fP object\&. The target rectangle is derived from its device metrics\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIplot\fP Plot to be rendered
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.br
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\fIpaintDevice\fP device to paint on, f\&.e a QImage
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.RE
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.PP
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\fBSee also\fP
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.RS 4
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\fBrenderDocument()\fP, \fBrender()\fP, \fBQwtPainter::setRoundingAlignment()\fP
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.RE
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.PP
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.PP
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Definition at line 402 of file qwt_plot_renderer\&.cpp\&.
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.SS "void QwtPlotRenderer::renderTo (\fBQwtPlot\fP * plot, QPrinter & printer) const"
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.PP
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Render the plot to a QPrinter\&. This function renders the contents of a \fBQwtPlot\fP instance to \fCQPaintDevice\fP object\&. The size is derived from the printer metrics\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIplot\fP Plot to be rendered
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.br
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\fIprinter\fP Printer to paint on
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.RE
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.PP
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\fBSee also\fP
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.RS 4
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\fBrenderDocument()\fP, \fBrender()\fP, \fBQwtPainter::setRoundingAlignment()\fP
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.RE
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.PP
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.PP
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Definition at line 427 of file qwt_plot_renderer\&.cpp\&.
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.SS "void QwtPlotRenderer::setDiscardFlag (\fBDiscardFlag\fP flag, bool on = \fCtrue\fP)"
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Change a flag, indicating what to discard from rendering
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.PP
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\fBParameters\fP
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.RS 4
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\fIflag\fP Flag to change
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.br
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\fIon\fP On/Off
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.RE
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.PP
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\fBSee also\fP
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.RS 4
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\fBDiscardFlag\fP, \fBtestDiscardFlag()\fP, \fBsetDiscardFlags()\fP, \fBdiscardFlags()\fP
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.RE
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.PP
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.PP
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Definition at line 166 of file qwt_plot_renderer\&.cpp\&.
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.SS "void QwtPlotRenderer::setDiscardFlags (\fBDiscardFlags\fP flags)"
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Set the flags, indicating what to discard from rendering
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.PP
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\fBParameters\fP
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.RS 4
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\fIflags\fP Flags
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.RE
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.PP
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\fBSee also\fP
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.RS 4
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\fBDiscardFlag\fP, \fBsetDiscardFlag()\fP, \fBtestDiscardFlag()\fP, \fBdiscardFlags()\fP
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.RE
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.PP
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.PP
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Definition at line 190 of file qwt_plot_renderer\&.cpp\&.
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.SS "void QwtPlotRenderer::setLayoutFlag (\fBLayoutFlag\fP flag, bool on = \fCtrue\fP)"
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Change a layout flag
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.PP
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\fBParameters\fP
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.RS 4
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\fIflag\fP Flag to change
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.br
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\fIon\fP On/Off
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.RE
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.PP
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\fBSee also\fP
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.RS 4
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\fBLayoutFlag\fP, \fBtestLayoutFlag()\fP, \fBsetLayoutFlags()\fP, \fBlayoutFlags()\fP
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.RE
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.PP
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.PP
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Definition at line 212 of file qwt_plot_renderer\&.cpp\&.
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.SS "void QwtPlotRenderer::setLayoutFlags (\fBLayoutFlags\fP flags)"
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Set the layout flags
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.PP
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\fBParameters\fP
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.RS 4
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\fIflags\fP Flags
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.RE
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.PP
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\fBSee also\fP
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.RS 4
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\fBLayoutFlag\fP, \fBsetLayoutFlag()\fP, \fBtestLayoutFlag()\fP, \fBlayoutFlags()\fP
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.RE
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.PP
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.PP
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Definition at line 236 of file qwt_plot_renderer\&.cpp\&.
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.SS "bool QwtPlotRenderer::testDiscardFlag (\fBDiscardFlag\fP flag) const"
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.PP
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\fBReturns\fP
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.RS 4
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True, if flag is enabled\&.
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.RE
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.PP
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\fBParameters\fP
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.RS 4
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\fIflag\fP Flag to be tested
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.RE
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.PP
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\fBSee also\fP
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.RS 4
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\fBDiscardFlag\fP, \fBsetDiscardFlag()\fP, \fBsetDiscardFlags()\fP, \fBdiscardFlags()\fP
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.RE
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.PP
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.PP
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Definition at line 179 of file qwt_plot_renderer\&.cpp\&.
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.SS "bool QwtPlotRenderer::testLayoutFlag (\fBLayoutFlag\fP flag) const"
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.PP
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\fBReturns\fP
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.RS 4
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True, if flag is enabled\&.
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.RE
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.PP
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\fBParameters\fP
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.RS 4
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\fIflag\fP Flag to be tested
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.RE
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.PP
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\fBSee also\fP
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.RS 4
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\fBLayoutFlag\fP, \fBsetLayoutFlag()\fP, \fBsetLayoutFlags()\fP, \fBlayoutFlags()\fP
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.RE
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Definition at line 225 of file qwt_plot_renderer\&.cpp\&.
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.SH "Author"
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.PP
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Generated automatically by Doxygen for Qwt User's Guide from the source code\&.
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