109 lines
2.3 KiB
Groff
109 lines
2.3 KiB
Groff
.TH "QwtPowerTransform" 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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QwtPowerTransform \- A transformation using pow()
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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_transform\&.h>\fP
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.PP
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Inherits \fBQwtTransform\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 "\fBQwtPowerTransform\fP (double exponent)"
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.br
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.ti -1c
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.RI "virtual \fB~QwtPowerTransform\fP ()"
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.br
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.RI "Destructor\&. "
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.ti -1c
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.RI "virtual double \fBtransform\fP (double value) const override"
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.br
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.ti -1c
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.RI "virtual double \fBinvTransform\fP (double value) const override"
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.br
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.ti -1c
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.RI "virtual \fBQwtTransform\fP * \fBcopy\fP () const override"
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.br
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.in -1c
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.SH "Detailed Description"
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.PP
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A transformation using pow()
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\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\&.
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.PP
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Definition at line 125 of file qwt_transform\&.h\&.
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.SH "Constructor & Destructor Documentation"
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.PP
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.SS "QwtPowerTransform::QwtPowerTransform (double exponent)\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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\fIexponent\fP Exponent
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.RE
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.PP
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.PP
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Definition at line 121 of file qwt_transform\&.cpp\&.
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.SH "Member Function Documentation"
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.PP
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.SS "\fBQwtTransform\fP * QwtPowerTransform::copy () const\fC [override]\fP, \fC [virtual]\fP"
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.PP
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\fBReturns\fP
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.RS 4
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Clone of the transformation
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.RE
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.PP
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.PP
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Implements \fBQwtTransform\fP\&.
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.PP
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Definition at line 158 of file qwt_transform\&.cpp\&.
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.SS "double QwtPowerTransform::invTransform (double value) const\fC [override]\fP, \fC [virtual]\fP"
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.PP
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\fBParameters\fP
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.RS 4
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\fIvalue\fP Value to be transformed
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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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Inverse exponentiation preserving the sign
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.RE
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.PP
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.PP
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Implements \fBQwtTransform\fP\&.
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.PP
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Definition at line 149 of file qwt_transform\&.cpp\&.
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.SS "double QwtPowerTransform::transform (double value) const\fC [override]\fP, \fC [virtual]\fP"
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.PP
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\fBParameters\fP
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.RS 4
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\fIvalue\fP Value to be transformed
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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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Exponentiation preserving the sign
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.RE
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.PP
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.PP
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Implements \fBQwtTransform\fP\&.
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.PP
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Definition at line 136 of file qwt_transform\&.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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