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doc/man/man3/QwtPowerTransform.3 Normal file
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.TH "QwtPowerTransform" 3 "Sun Jul 18 2021" "Version 6.2.0" "Qwt User's Guide" \" -*- nroff -*-
.ad l
.nh
.SH NAME
QwtPowerTransform \- A transformation using pow()
.SH SYNOPSIS
.br
.PP
.PP
\fC#include <qwt_transform\&.h>\fP
.PP
Inherits \fBQwtTransform\fP\&.
.SS "Public Member Functions"
.in +1c
.ti -1c
.RI "\fBQwtPowerTransform\fP (double exponent)"
.br
.ti -1c
.RI "virtual \fB~QwtPowerTransform\fP ()"
.br
.RI "Destructor\&. "
.ti -1c
.RI "virtual double \fBtransform\fP (double value) const override"
.br
.ti -1c
.RI "virtual double \fBinvTransform\fP (double value) const override"
.br
.ti -1c
.RI "virtual \fBQwtTransform\fP * \fBcopy\fP () const override"
.br
.in -1c
.SH "Detailed Description"
.PP
A transformation using pow()
\fBQwtPowerTransform\fP preserves the sign of a value\&. F\&.e\&. a transformation with a factor of 2 transforms a value of -3 to -9 and v\&.v\&. Thus \fBQwtPowerTransform\fP can be used for scales including negative values\&.
.PP
Definition at line 125 of file qwt_transform\&.h\&.
.SH "Constructor & Destructor Documentation"
.PP
.SS "QwtPowerTransform::QwtPowerTransform (double exponent)\fC [explicit]\fP"
Constructor
.PP
\fBParameters\fP
.RS 4
\fIexponent\fP Exponent
.RE
.PP
.PP
Definition at line 121 of file qwt_transform\&.cpp\&.
.SH "Member Function Documentation"
.PP
.SS "\fBQwtTransform\fP * QwtPowerTransform::copy () const\fC [override]\fP, \fC [virtual]\fP"
.PP
\fBReturns\fP
.RS 4
Clone of the transformation
.RE
.PP
.PP
Implements \fBQwtTransform\fP\&.
.PP
Definition at line 158 of file qwt_transform\&.cpp\&.
.SS "double QwtPowerTransform::invTransform (double value) const\fC [override]\fP, \fC [virtual]\fP"
.PP
\fBParameters\fP
.RS 4
\fIvalue\fP Value to be transformed
.RE
.PP
\fBReturns\fP
.RS 4
Inverse exponentiation preserving the sign
.RE
.PP
.PP
Implements \fBQwtTransform\fP\&.
.PP
Definition at line 149 of file qwt_transform\&.cpp\&.
.SS "double QwtPowerTransform::transform (double value) const\fC [override]\fP, \fC [virtual]\fP"
.PP
\fBParameters\fP
.RS 4
\fIvalue\fP Value to be transformed
.RE
.PP
\fBReturns\fP
.RS 4
Exponentiation preserving the sign
.RE
.PP
.PP
Implements \fBQwtTransform\fP\&.
.PP
Definition at line 136 of file qwt_transform\&.cpp\&.
.SH "Author"
.PP
Generated automatically by Doxygen for Qwt User's Guide from the source code\&.