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slsDetectorPackage/libs/qwt-6.1.5/doc/man/man3/QwtPlotRescaler.3
Dhanya Thattil 38cd10d4e6
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)
2022-11-11 15:15:10 +01:00

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.TH "QwtPlotRescaler" 3 "Mon Jun 1 2020" "Version 6.1.5" "Qwt User's Guide" \" -*- nroff -*-
.ad l
.nh
.SH NAME
QwtPlotRescaler \- \fBQwtPlotRescaler\fP takes care of fixed aspect ratios for plot scales\&.
.SH SYNOPSIS
.br
.PP
.PP
\fC#include <qwt_plot_rescaler\&.h>\fP
.PP
Inherits QObject\&.
.SS "Public Types"
.in +1c
.ti -1c
.RI "enum \fBRescalePolicy\fP { \fBFixed\fP, \fBExpanding\fP, \fBFitting\fP }"
.br
.ti -1c
.RI "enum \fBExpandingDirection\fP { \fBExpandUp\fP, \fBExpandDown\fP, \fBExpandBoth\fP }"
.br
.in -1c
.SS "Public Member Functions"
.in +1c
.ti -1c
.RI "\fBQwtPlotRescaler\fP (QWidget *\fBcanvas\fP, int \fBreferenceAxis\fP=\fBQwtPlot::xBottom\fP, \fBRescalePolicy\fP=\fBExpanding\fP)"
.br
.ti -1c
.RI "virtual \fB~QwtPlotRescaler\fP ()"
.br
.RI "Destructor\&. "
.ti -1c
.RI "void \fBsetEnabled\fP (bool)"
.br
.RI "En/disable the rescaler\&. "
.ti -1c
.RI "bool \fBisEnabled\fP () const"
.br
.ti -1c
.RI "void \fBsetRescalePolicy\fP (\fBRescalePolicy\fP)"
.br
.ti -1c
.RI "\fBRescalePolicy\fP \fBrescalePolicy\fP () const"
.br
.ti -1c
.RI "void \fBsetExpandingDirection\fP (\fBExpandingDirection\fP)"
.br
.ti -1c
.RI "void \fBsetExpandingDirection\fP (int axis, \fBExpandingDirection\fP)"
.br
.ti -1c
.RI "\fBExpandingDirection\fP \fBexpandingDirection\fP (int axis) const"
.br
.ti -1c
.RI "void \fBsetReferenceAxis\fP (int axis)"
.br
.ti -1c
.RI "int \fBreferenceAxis\fP () const"
.br
.ti -1c
.RI "void \fBsetAspectRatio\fP (double ratio)"
.br
.ti -1c
.RI "void \fBsetAspectRatio\fP (int axis, double ratio)"
.br
.ti -1c
.RI "double \fBaspectRatio\fP (int axis) const"
.br
.ti -1c
.RI "void \fBsetIntervalHint\fP (int axis, const \fBQwtInterval\fP &)"
.br
.ti -1c
.RI "\fBQwtInterval\fP \fBintervalHint\fP (int axis) const"
.br
.ti -1c
.RI "QWidget * \fBcanvas\fP ()"
.br
.ti -1c
.RI "const QWidget * \fBcanvas\fP () const"
.br
.ti -1c
.RI "\fBQwtPlot\fP * \fBplot\fP ()"
.br
.ti -1c
.RI "const \fBQwtPlot\fP * \fBplot\fP () const"
.br
.ti -1c
.RI "virtual bool \fBeventFilter\fP (QObject *, QEvent *)"
.br
.RI "Event filter for the plot canvas\&. "
.ti -1c
.RI "void \fBrescale\fP () const"
.br
.RI "Adjust the plot axes scales\&. "
.in -1c
.SS "Protected Member Functions"
.in +1c
.ti -1c
.RI "virtual void \fBcanvasResizeEvent\fP (QResizeEvent *)"
.br
.ti -1c
.RI "virtual void \fBrescale\fP (const QSize &oldSize, const QSize &newSize) const"
.br
.ti -1c
.RI "virtual \fBQwtInterval\fP \fBexpandScale\fP (int axis, const QSize &oldSize, const QSize &newSize) const"
.br
.ti -1c
.RI "virtual \fBQwtInterval\fP \fBsyncScale\fP (int axis, const \fBQwtInterval\fP &reference, const QSize &size) const"
.br
.ti -1c
.RI "virtual void \fBupdateScales\fP (\fBQwtInterval\fP intervals[\fBQwtPlot::axisCnt\fP]) const"
.br
.ti -1c
.RI "Qt::Orientation \fBorientation\fP (int axis) const"
.br
.ti -1c
.RI "\fBQwtInterval\fP \fBinterval\fP (int axis) const"
.br
.ti -1c
.RI "\fBQwtInterval\fP \fBexpandInterval\fP (const \fBQwtInterval\fP &, double width, \fBExpandingDirection\fP) const"
.br
.in -1c
.SH "Detailed Description"
.PP
\fBQwtPlotRescaler\fP takes care of fixed aspect ratios for plot scales\&.
\fBQwtPlotRescaler\fP auto adjusts the axes of a \fBQwtPlot\fP according to fixed aspect ratios\&.
.SH "Member Enumeration Documentation"
.PP
.SS "enum \fBQwtPlotRescaler::ExpandingDirection\fP"
When \fBrescalePolicy()\fP is set to Expanding its direction depends on ExpandingDirection
.PP
\fBEnumerator\fP
.in +1c
.TP
\fB\fIExpandUp \fP\fP
The upper limit of the scale is adjusted\&.
.TP
\fB\fIExpandDown \fP\fP
The lower limit of the scale is adjusted\&.
.TP
\fB\fIExpandBoth \fP\fP
Both limits of the scale are adjusted\&.
.SS "enum \fBQwtPlotRescaler::RescalePolicy\fP"
The rescale policy defines how to rescale the reference axis and their depending axes\&.
.PP
\fBSee also\fP
.RS 4
\fBExpandingDirection\fP, \fBsetIntervalHint()\fP
.RE
.PP
.PP
\fBEnumerator\fP
.in +1c
.TP
\fB\fIFixed \fP\fP
The interval of the reference axis remains unchanged, when the geometry of the canvas changes\&. All other axes will be adjusted according to their aspect ratio\&.
.TP
\fB\fIExpanding \fP\fP
The interval of the reference axis will be shrunk/expanded, when the geometry of the canvas changes\&. All other axes will be adjusted according to their aspect ratio\&.
.PP
The interval, that is represented by one pixel is fixed\&.
.TP
\fB\fIFitting \fP\fP
The intervals of the axes are calculated, so that all axes include their interval hint\&.
.SH "Constructor & Destructor Documentation"
.PP
.SS "QwtPlotRescaler::QwtPlotRescaler (QWidget * canvas, int referenceAxis = \fC\fBQwtPlot::xBottom\fP\fP, \fBRescalePolicy\fP policy = \fC\fBExpanding\fP\fP)\fC [explicit]\fP"
Constructor
.PP
\fBParameters\fP
.RS 4
\fIcanvas\fP Canvas
.br
\fIreferenceAxis\fP Reference axis, see RescalePolicy
.br
\fIpolicy\fP Rescale policy
.RE
.PP
\fBSee also\fP
.RS 4
\fBsetRescalePolicy()\fP, \fBsetReferenceAxis()\fP
.RE
.PP
.SH "Member Function Documentation"
.PP
.SS "double QwtPlotRescaler::aspectRatio (int axis) const"
.PP
\fBReturns\fP
.RS 4
Aspect ratio between an axis and the reference axis\&.
.RE
.PP
\fBParameters\fP
.RS 4
\fIaxis\fP Axis index ( see QwtPlot::AxisId )
.RE
.PP
\fBSee also\fP
.RS 4
\fBsetAspectRatio()\fP
.RE
.PP
.SS "QWidget * QwtPlotRescaler::canvas ()"
.PP
\fBReturns\fP
.RS 4
plot canvas
.RE
.PP
.SS "const QWidget * QwtPlotRescaler::canvas () const"
.PP
\fBReturns\fP
.RS 4
plot canvas
.RE
.PP
.SS "void QwtPlotRescaler::canvasResizeEvent (QResizeEvent * event)\fC [protected]\fP, \fC [virtual]\fP"
Event handler for resize events of the plot canvas
.PP
\fBParameters\fP
.RS 4
\fIevent\fP Resize event
.RE
.PP
\fBSee also\fP
.RS 4
\fBrescale()\fP
.RE
.PP
.SS "\fBQwtPlotRescaler::ExpandingDirection\fP QwtPlotRescaler::expandingDirection (int axis) const"
.PP
\fBReturns\fP
.RS 4
Direction in which an axis should be expanded
.RE
.PP
\fBParameters\fP
.RS 4
\fIaxis\fP Axis index ( see QwtPlot::AxisId )
.RE
.PP
\fBSee also\fP
.RS 4
\fBsetExpandingDirection()\fP
.RE
.PP
.SS "\fBQwtInterval\fP QwtPlotRescaler::expandInterval (const \fBQwtInterval\fP & interval, double width, \fBExpandingDirection\fP direction) const\fC [protected]\fP"
Expand the interval
.PP
\fBParameters\fP
.RS 4
\fIinterval\fP Interval to be expanded
.br
\fIwidth\fP Distance to be added to the interval
.br
\fIdirection\fP Direction of the expand operation
.RE
.PP
\fBReturns\fP
.RS 4
Expanded interval
.RE
.PP
.SS "\fBQwtInterval\fP QwtPlotRescaler::expandScale (int axis, const QSize & oldSize, const QSize & newSize) const\fC [protected]\fP, \fC [virtual]\fP"
Calculate the new scale interval of a plot axis
.PP
\fBParameters\fP
.RS 4
\fIaxis\fP Axis index ( see QwtPlot::AxisId )
.br
\fIoldSize\fP Previous size of the canvas
.br
\fInewSize\fP New size of the canvas
.RE
.PP
\fBReturns\fP
.RS 4
Calculated new interval for the axis
.RE
.PP
.SS "\fBQwtInterval\fP QwtPlotRescaler::interval (int axis) const\fC [protected]\fP"
.PP
\fBParameters\fP
.RS 4
\fIaxis\fP Axis index ( see QwtPlot::AxisId )
.RE
.PP
\fBReturns\fP
.RS 4
Normalized interval of an axis
.RE
.PP
.SS "\fBQwtInterval\fP QwtPlotRescaler::intervalHint (int axis) const"
.PP
\fBParameters\fP
.RS 4
\fIaxis\fP Axis, see \fBQwtPlot::Axis\fP
.RE
.PP
\fBReturns\fP
.RS 4
Interval hint
.RE
.PP
\fBSee also\fP
.RS 4
\fBsetIntervalHint()\fP, \fBRescalePolicy\fP
.RE
.PP
.SS "bool QwtPlotRescaler::isEnabled () const"
.PP
\fBReturns\fP
.RS 4
true when enabled, false otherwise
.RE
.PP
\fBSee also\fP
.RS 4
\fBsetEnabled\fP, \fBeventFilter()\fP
.RE
.PP
.SS "Qt::Orientation QwtPlotRescaler::orientation (int axis) const\fC [protected]\fP"
.PP
\fBReturns\fP
.RS 4
Orientation of an axis
.RE
.PP
\fBParameters\fP
.RS 4
\fIaxis\fP Axis index ( see QwtPlot::AxisId )
.RE
.PP
.SS "\fBQwtPlot\fP * QwtPlotRescaler::plot ()"
.PP
\fBReturns\fP
.RS 4
plot widget
.RE
.PP
.SS "const \fBQwtPlot\fP * QwtPlotRescaler::plot () const"
.PP
\fBReturns\fP
.RS 4
plot widget
.RE
.PP
.SS "int QwtPlotRescaler::referenceAxis () const"
.PP
\fBReturns\fP
.RS 4
Reference axis ( see RescalePolicy )
.RE
.PP
\fBSee also\fP
.RS 4
\fBsetReferenceAxis()\fP
.RE
.PP
.SS "void QwtPlotRescaler::rescale (const QSize & oldSize, const QSize & newSize) const\fC [protected]\fP, \fC [virtual]\fP"
Adjust the plot axes scales
.PP
\fBParameters\fP
.RS 4
\fIoldSize\fP Previous size of the canvas
.br
\fInewSize\fP New size of the canvas
.RE
.PP
.SS "\fBQwtPlotRescaler::RescalePolicy\fP QwtPlotRescaler::rescalePolicy () const"
.PP
\fBReturns\fP
.RS 4
Rescale policy
.RE
.PP
\fBSee also\fP
.RS 4
\fBsetRescalePolicy()\fP
.RE
.PP
.SS "void QwtPlotRescaler::setAspectRatio (double ratio)"
Set the aspect ratio between the scale of the reference axis and the other scales\&. The default ratio is 1\&.0
.PP
\fBParameters\fP
.RS 4
\fIratio\fP Aspect ratio
.RE
.PP
\fBSee also\fP
.RS 4
\fBaspectRatio()\fP
.RE
.PP
.SS "void QwtPlotRescaler::setAspectRatio (int axis, double ratio)"
Set the aspect ratio between the scale of the reference axis and another scale\&. The default ratio is 1\&.0
.PP
\fBParameters\fP
.RS 4
\fIaxis\fP Axis index ( see QwtPlot::AxisId )
.br
\fIratio\fP Aspect ratio
.RE
.PP
\fBSee also\fP
.RS 4
\fBaspectRatio()\fP
.RE
.PP
.SS "void QwtPlotRescaler::setEnabled (bool on)"
.PP
En/disable the rescaler\&. When enabled is true an event filter is installed for the canvas, otherwise the event filter is removed\&.
.PP
\fBParameters\fP
.RS 4
\fIon\fP true or false
.RE
.PP
\fBSee also\fP
.RS 4
\fBisEnabled()\fP, \fBeventFilter()\fP
.RE
.PP
.SS "void QwtPlotRescaler::setExpandingDirection (\fBExpandingDirection\fP direction)"
Set the direction in which all axis should be expanded
.PP
\fBParameters\fP
.RS 4
\fIdirection\fP Direction
.RE
.PP
\fBSee also\fP
.RS 4
\fBexpandingDirection()\fP
.RE
.PP
.SS "void QwtPlotRescaler::setExpandingDirection (int axis, \fBExpandingDirection\fP direction)"
Set the direction in which an axis should be expanded
.PP
\fBParameters\fP
.RS 4
\fIaxis\fP Axis index ( see QwtPlot::AxisId )
.br
\fIdirection\fP Direction
.RE
.PP
\fBSee also\fP
.RS 4
\fBexpandingDirection()\fP
.RE
.PP
.SS "void QwtPlotRescaler::setIntervalHint (int axis, const \fBQwtInterval\fP & interval)"
Set an interval hint for an axis
.PP
In Fitting mode, the hint is used as minimal interval that always needs to be displayed\&.
.PP
\fBParameters\fP
.RS 4
\fIaxis\fP Axis, see \fBQwtPlot::Axis\fP
.br
\fIinterval\fP Axis
.RE
.PP
\fBSee also\fP
.RS 4
\fBintervalHint()\fP, \fBRescalePolicy\fP
.RE
.PP
.SS "void QwtPlotRescaler::setReferenceAxis (int axis)"
Set the reference axis ( see RescalePolicy )
.PP
\fBParameters\fP
.RS 4
\fIaxis\fP Axis index ( \fBQwtPlot::Axis\fP )
.RE
.PP
\fBSee also\fP
.RS 4
\fBreferenceAxis()\fP
.RE
.PP
.SS "void QwtPlotRescaler::setRescalePolicy (\fBRescalePolicy\fP policy)"
Change the rescale policy
.PP
\fBParameters\fP
.RS 4
\fIpolicy\fP Rescale policy
.RE
.PP
\fBSee also\fP
.RS 4
\fBrescalePolicy()\fP
.RE
.PP
.SS "\fBQwtInterval\fP QwtPlotRescaler::syncScale (int axis, const \fBQwtInterval\fP & reference, const QSize & size) const\fC [protected]\fP, \fC [virtual]\fP"
Synchronize an axis scale according to the scale of the reference axis
.PP
\fBParameters\fP
.RS 4
\fIaxis\fP Axis index ( see QwtPlot::AxisId )
.br
\fIreference\fP Interval of the reference axis
.br
\fIsize\fP Size of the canvas
.RE
.PP
\fBReturns\fP
.RS 4
New interval for axis
.RE
.PP
.SS "void QwtPlotRescaler::updateScales (\fBQwtInterval\fP intervals[QwtPlot::axisCnt]) const\fC [protected]\fP, \fC [virtual]\fP"
Update the axes scales
.PP
\fBParameters\fP
.RS 4
\fIintervals\fP Scale intervals
.RE
.PP
.SH "Author"
.PP
Generated automatically by Doxygen for Qwt User's Guide from the source code\&.
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