mirror of
https://github.com/slsdetectorgroup/slsDetectorPackage.git
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38cd10d4e6
- 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)
300 lines
5.6 KiB
Groff
300 lines
5.6 KiB
Groff
.TH "QwtSpline" 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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QwtSpline \- A class for spline interpolation\&.
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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_spline\&.h>\fP
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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 \fBSplineType\fP { \fBNatural\fP, \fBPeriodic\fP }"
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.br
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.RI "Spline type\&. "
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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 "\fBQwtSpline\fP ()"
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.br
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.RI "Constructor\&. "
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.ti -1c
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.RI "\fBQwtSpline\fP (const \fBQwtSpline\fP &)"
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.br
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.ti -1c
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.RI "\fB~QwtSpline\fP ()"
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.br
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.RI "Destructor\&. "
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.ti -1c
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.RI "\fBQwtSpline\fP & \fBoperator=\fP (const \fBQwtSpline\fP &)"
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.br
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.ti -1c
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.RI "void \fBsetSplineType\fP (\fBSplineType\fP)"
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.br
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.ti -1c
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.RI "\fBSplineType\fP \fBsplineType\fP () const"
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.br
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.ti -1c
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.RI "bool \fBsetPoints\fP (const QPolygonF &\fBpoints\fP)"
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.br
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.RI "Calculate the spline coefficients\&. "
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.ti -1c
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.RI "QPolygonF \fBpoints\fP () const"
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.br
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.ti -1c
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.RI "void \fBreset\fP ()"
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.br
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.RI "Free allocated memory and set size to 0\&. "
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.ti -1c
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.RI "bool \fBisValid\fP () const"
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.br
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.RI "True if valid\&. "
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.ti -1c
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.RI "double \fBvalue\fP (double x) const"
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.br
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.ti -1c
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.RI "const QVector< double > & \fBcoefficientsA\fP () const"
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.br
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.ti -1c
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.RI "const QVector< double > & \fBcoefficientsB\fP () const"
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.br
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.ti -1c
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.RI "const QVector< double > & \fBcoefficientsC\fP () const"
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.br
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.in -1c
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.SS "Protected Member Functions"
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.in +1c
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.ti -1c
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.RI "bool \fBbuildNaturalSpline\fP (const QPolygonF &)"
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.br
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.RI "Determines the coefficients for a natural spline\&. "
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.ti -1c
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.RI "bool \fBbuildPeriodicSpline\fP (const QPolygonF &)"
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.br
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.RI "Determines the coefficients for a periodic spline\&. "
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.in -1c
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.SH "Detailed Description"
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.PP
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A class for spline interpolation\&.
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The \fBQwtSpline\fP class is used for cubical spline interpolation\&. Two types of splines, natural and periodic, are supported\&.
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.PP
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\fBUsage:\fP
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.RS 4
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.PD 0
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.IP "1." 4
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First call \fBsetPoints()\fP to determine the spline coefficients for a tabulated function y(x)\&.
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.IP "2." 4
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After the coefficients have been set up, the interpolated function value for an argument x can be determined by calling \fBQwtSpline::value()\fP\&.
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.PP
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.RE
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.PP
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\fBExample:\fP
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.RS 4
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.PP
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.nf
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#include <qwt_spline\&.h>
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QPolygonF interpolate(const QPolygonF& points, int numValues)
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{
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QwtSpline spline;
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if ( !spline\&.setPoints(points) )
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return points;
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QPolygonF interpolatedPoints(numValues);
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const double delta =
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(points[numPoints - 1]\&.x() - points[0]\&.x()) / (points\&.size() - 1);
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for(i = 0; i < points\&.size(); i++) / interpolate
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{
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const double x = points[0]\&.x() + i * delta;
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interpolatedPoints[i]\&.setX(x);
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interpolatedPoints[i]\&.setY(spline\&.value(x));
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}
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return interpolatedPoints;
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}
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.fi
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.PP
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.RE
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.PP
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.SH "Member Enumeration Documentation"
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.PP
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.SS "enum \fBQwtSpline::SplineType\fP"
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.PP
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Spline type\&.
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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\fINatural \fP\fP
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A natural spline\&.
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.TP
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\fB\fIPeriodic \fP\fP
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A periodic spline\&.
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.SH "Constructor & Destructor Documentation"
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.PP
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.SS "QwtSpline::QwtSpline (const \fBQwtSpline\fP & other)"
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Copy constructor
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.PP
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\fBParameters\fP
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.RS 4
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\fIother\fP Spline used for initialization
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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 "bool QwtSpline::buildNaturalSpline (const QPolygonF & points)\fC [protected]\fP"
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.PP
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Determines the coefficients for a natural spline\&.
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.PP
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\fBReturns\fP
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.RS 4
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true if successful
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.RE
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.PP
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.SS "bool QwtSpline::buildPeriodicSpline (const QPolygonF & points)\fC [protected]\fP"
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.PP
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Determines the coefficients for a periodic spline\&.
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.PP
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\fBReturns\fP
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.RS 4
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true if successful
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.RE
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.PP
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.SS "const QVector< double > & QwtSpline::coefficientsA () const"
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.PP
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\fBReturns\fP
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.RS 4
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A coefficients
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.RE
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.PP
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.SS "const QVector< double > & QwtSpline::coefficientsB () const"
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.PP
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\fBReturns\fP
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.RS 4
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B coefficients
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.RE
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.PP
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.SS "const QVector< double > & QwtSpline::coefficientsC () const"
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.PP
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\fBReturns\fP
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.RS 4
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C coefficients
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.RE
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.PP
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.SS "\fBQwtSpline\fP & QwtSpline::operator= (const \fBQwtSpline\fP & other)"
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Assignment operator
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.PP
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\fBParameters\fP
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.RS 4
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\fIother\fP Spline used for initialization
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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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*this
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.RE
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.PP
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.SS "QPolygonF QwtSpline::points () const"
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.PP
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\fBReturns\fP
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.RS 4
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Points, that have been by \fBsetPoints()\fP
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.RE
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.PP
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.SS "bool QwtSpline::setPoints (const QPolygonF & points)"
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.PP
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Calculate the spline coefficients\&. Depending on the value of \fIperiodic\fP, this function will determine the coefficients for a natural or a periodic spline and store them internally\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIpoints\fP Points
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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 if successful
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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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The sequence of x (but not y) values has to be strictly monotone increasing, which means \fCpoints[i]\&.x() < points[i+1]\&.x()\fP\&. If this is not the case, the function will return false
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.RE
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.PP
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.SS "void QwtSpline::setSplineType (\fBSplineType\fP splineType)"
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Select the algorithm used for calculating the spline
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.PP
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\fBParameters\fP
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.RS 4
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\fIsplineType\fP Spline type
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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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\fBsplineType()\fP
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.RE
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.PP
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.SS "\fBQwtSpline::SplineType\fP QwtSpline::splineType () const"
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.PP
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\fBReturns\fP
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.RS 4
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the spline type
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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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\fBsetSplineType()\fP
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.RE
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.PP
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.SS "double QwtSpline::value (double x) const"
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Calculate the interpolated function value corresponding to a given argument x\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIx\fP Coordinate
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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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Interpolated coordinate
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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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