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Qt5 built in qwt (#570)
- qt4->qt5 - in built qt5 6.1.5 because rhel7 is not upto date with qt5, removed findqwt.cmake - made a fix in qwt lib (qwt_plot_layout.h) to work with 5.15 and lower versions for qrect constr. - qt5 forms fixed, qt4 many hard coding forms switched to forms including qtabwidget, scrolls etc, fonts moved to forms - docking option enabled by default, removed option to disable docking feature from "Mode" - added qVersionResolve utility functions to handle compatibility before and after qt5.12 - qtplots (ian's code) takes in gain mode enable to set some settings within the class, with proper gain plot ticks - ensure gain plots have no zooming of z axis in 2d and y axis in 1d - removed placeholder text in qpalette in main window form as its not supportd until 5.12 (so using qt5.9 designer insted of qt5.15 to cope) - tab order Servers: - fixed some error messages that were empty for fail in funcs (mostly minor as if this error, major issues)
This commit is contained in:
Dhanya Thattil
287
libs/qwt-6.1.5/doc/man/man3/QwtSyntheticPointData.3
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287
libs/qwt-6.1.5/doc/man/man3/QwtSyntheticPointData.3
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.TH "QwtSyntheticPointData" 3 "Mon Jun 1 2020" "Version 6.1.5" "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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QwtSyntheticPointData \- Synthetic point data\&.
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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_point_data\&.h>\fP
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.PP
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Inherits \fBQwtSeriesData< QPointF >\fP\&.
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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 "\fBQwtSyntheticPointData\fP (size_t \fBsize\fP, const \fBQwtInterval\fP &=\fBQwtInterval\fP())"
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.br
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.ti -1c
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.RI "void \fBsetSize\fP (size_t \fBsize\fP)"
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.br
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.ti -1c
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.RI "virtual size_t \fBsize\fP () const"
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.br
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.ti -1c
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.RI "void \fBsetInterval\fP (const \fBQwtInterval\fP &)"
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.br
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.ti -1c
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.RI "\fBQwtInterval\fP \fBinterval\fP () const"
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.br
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.ti -1c
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.RI "virtual QRectF \fBboundingRect\fP () const"
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.br
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.RI "Calculate the bounding rectangle\&. "
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.ti -1c
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.RI "virtual QPointF \fBsample\fP (size_t index) const"
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.br
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.ti -1c
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.RI "virtual double \fBy\fP (double \fBx\fP) const =0"
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.br
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.ti -1c
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.RI "virtual double \fBx\fP (uint index) const"
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.br
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.ti -1c
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.RI "virtual void \fBsetRectOfInterest\fP (const QRectF &)"
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.br
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.ti -1c
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.RI "QRectF \fBrectOfInterest\fP () const"
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.br
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.in -1c
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.SS "Additional Inherited Members"
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.SH "Detailed Description"
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.PP
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Synthetic point data\&.
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\fBQwtSyntheticPointData\fP provides a fixed number of points for an interval\&. The points are calculated in equidistant steps in x-direction\&.
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.PP
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If the interval is invalid, the points are calculated for the 'rectangle of interest', what normally is the displayed area on the plot canvas\&. In this mode you get different levels of detail, when zooming in/out\&.
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.PP
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\fBExample\fP
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.RS 4
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.RE
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.PP
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The following example shows how to implement a sinus curve\&.
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.PP
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.PP
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.nf
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#include <cmath>
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#include <qwt_series_data\&.h>
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#include <qwt_plot_curve\&.h>
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#include <qwt_plot\&.h>
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#include <qapplication\&.h>
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class SinusData: public QwtSyntheticPointData
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{
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public:
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SinusData():
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QwtSyntheticPointData( 100 )
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{
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}
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virtual double y( double x ) const
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{
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return qSin( x );
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}
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};
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int main(int argc, char **argv)
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{
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QApplication a( argc, argv );
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QwtPlot plot;
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plot\&.setAxisScale( QwtPlot::xBottom, 0\&.0, 10\&.0 );
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plot\&.setAxisScale( QwtPlot::yLeft, -1\&.0, 1\&.0 );
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QwtPlotCurve *curve = new QwtPlotCurve( "y = sin(x)" );
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curve->setData( new SinusData() );
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curve->attach( &plot );
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plot\&.show();
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return a\&.exec();
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}
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.fi
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.PP
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.SH "Constructor & Destructor Documentation"
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.PP
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.SS "QwtSyntheticPointData::QwtSyntheticPointData (size_t size, const \fBQwtInterval\fP & interval = \fC\fBQwtInterval\fP()\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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\fIsize\fP Number of points
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.br
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\fIinterval\fP Bounding interval for the points
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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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\fBsetInterval()\fP, \fBsetSize()\fP
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.RE
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.PP
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.SH "Member Function Documentation"
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.PP
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.SS "QRectF QwtSyntheticPointData::boundingRect () const\fC [virtual]\fP"
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.PP
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Calculate the bounding rectangle\&. This implementation iterates over all points, what could often be implemented much faster using the characteristics of the series\&. When there are many points it is recommended to overload and reimplement this method using the characteristics of the series ( if possible )\&.
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.PP
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\fBReturns\fP
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.RS 4
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Bounding rectangle
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.RE
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.PP
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.PP
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Implements \fBQwtSeriesData< QPointF >\fP\&.
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.SS "\fBQwtInterval\fP QwtSyntheticPointData::interval () const"
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.PP
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\fBReturns\fP
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.RS 4
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Bounding interval
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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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\fBsetInterval()\fP, \fBsize()\fP
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.RE
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.PP
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.SS "QRectF QwtSyntheticPointData::rectOfInterest () const"
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.PP
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\fBReturns\fP
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.RS 4
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'rectangle of interest'
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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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\fBsetRectOfInterest()\fP
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.RE
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.PP
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.SS "QPointF QwtSyntheticPointData::sample (size_t index) const\fC [virtual]\fP"
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Calculate the point from an index
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.PP
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\fBParameters\fP
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.RS 4
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\fIindex\fP Index
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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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QPointF(x(index), y(x(index)));
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.RE
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.PP
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\fBWarning\fP
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.RS 4
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For invalid indices ( index < 0 || index >= \fBsize()\fP ) (0, 0) is returned\&.
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.RE
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.PP
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.PP
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Implements \fBQwtSeriesData< QPointF >\fP\&.
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.SS "void QwtSyntheticPointData::setInterval (const \fBQwtInterval\fP & interval)"
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Set the bounding interval
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.PP
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\fBParameters\fP
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.RS 4
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\fIinterval\fP Interval
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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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\fBinterval()\fP, \fBsetSize()\fP
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.RE
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.PP
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.SS "void QwtSyntheticPointData::setRectOfInterest (const QRectF & rect)\fC [virtual]\fP"
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Set a the 'rectangle of interest'
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.PP
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\fBQwtPlotSeriesItem\fP defines the current area of the plot canvas as 'rect of interest' ( \fBQwtPlotSeriesItem::updateScaleDiv()\fP )\&.
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.PP
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If \fBinterval()\fP\&.isValid() == false the x values are calculated in the interval rect\&.left() -> rect\&.right()\&.
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.PP
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\fBSee also\fP
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.RS 4
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\fBrectOfInterest()\fP
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.RE
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.PP
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.PP
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Reimplemented from \fBQwtSeriesData< QPointF >\fP\&.
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.SS "void QwtSyntheticPointData::setSize (size_t size)"
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Change the number of points
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.PP
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\fBParameters\fP
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.RS 4
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\fIsize\fP Number of points
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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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\fBsize()\fP, \fBsetInterval()\fP
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.RE
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.PP
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.SS "size_t QwtSyntheticPointData::size () const\fC [virtual]\fP"
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.PP
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\fBReturns\fP
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.RS 4
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Number of points
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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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\fBsetSize()\fP, \fBinterval()\fP
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.RE
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.PP
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.PP
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Implements \fBQwtSeriesData< QPointF >\fP\&.
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.SS "double QwtSyntheticPointData::x (uint index) const\fC [virtual]\fP"
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Calculate a x-value from an index
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.PP
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x values are calculated by dividing an interval into equidistant steps\&. If !interval()\&.isValid() the interval is calculated from the 'rectangle of interest'\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIindex\fP Index of the requested point
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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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Calculated x coordinate
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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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\fBinterval()\fP, \fBrectOfInterest()\fP, \fBy()\fP
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.RE
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.PP
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.SS "virtual double QwtSyntheticPointData::y (double x) const\fC [pure virtual]\fP"
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Calculate a y value for a x value
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.PP
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\fBParameters\fP
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.RS 4
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\fIx\fP x value
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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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Corresponding y value
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.RE
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.PP
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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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