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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)
127 lines
2.7 KiB
Groff
127 lines
2.7 KiB
Groff
.TH "QwtTransform" 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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QwtTransform \- A transformation between coordinate systems\&.
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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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Inherited by \fBQwtLogTransform\fP, \fBQwtNullTransform\fP, and \fBQwtPowerTransform\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 "\fBQwtTransform\fP ()"
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.br
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.RI "Constructor\&. "
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.ti -1c
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.RI "virtual \fB~QwtTransform\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 \fBbounded\fP (double value) const"
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.br
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.ti -1c
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.RI "virtual double \fBtransform\fP (double value) const =0"
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.br
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.ti -1c
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.RI "virtual double \fBinvTransform\fP (double value) const =0"
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.br
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.ti -1c
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.RI "virtual \fBQwtTransform\fP * \fBcopy\fP () const =0"
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.br
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.RI "Virtualized copy operation\&. "
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.in -1c
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.SH "Detailed Description"
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.PP
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A transformation between coordinate systems\&.
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\fBQwtTransform\fP manipulates values, when being mapped between the scale and the paint device coordinate system\&.
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.PP
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A transformation consists of 2 methods:
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.PP
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.IP "\(bu" 2
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transform
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.IP "\(bu" 2
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invTransform
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.PP
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.PP
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where one is is the inverse function of the other\&.
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.PP
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When p1, p2 are the boundaries of the paint device coordinates and s1, s2 the boundaries of the scale, \fBQwtScaleMap\fP uses the following calculations:
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.PP
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.IP "\(bu" 2
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p = p1 + ( p2 - p1 ) * ( T( s ) - T( s1 ) / ( T( s2 ) - T( s1 ) );
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.IP "\(bu" 2
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s = invT ( T( s1 ) + ( T( s2 ) - T( s1 ) ) * ( p - p1 ) / ( p2 - p1 ) );
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.PP
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.SH "Member Function Documentation"
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.PP
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.SS "double QwtTransform::bounded (double value) const\fC [virtual]\fP"
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Modify value to be a valid value for the transformation\&. The default implementation does nothing\&.
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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 bounded
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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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value unmodified
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.RE
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.PP
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.PP
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Reimplemented in \fBQwtLogTransform\fP\&.
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.SS "virtual double QwtTransform::invTransform (double value) const\fC [pure virtual]\fP"
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Inverse transformation function
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.PP
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\fBParameters\fP
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.RS 4
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\fIvalue\fP 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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Modified value
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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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\fBtransform()\fP
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.RE
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.PP
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.PP
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Implemented in \fBQwtPowerTransform\fP, \fBQwtLogTransform\fP, and \fBQwtNullTransform\fP\&.
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.SS "virtual double QwtTransform::transform (double value) const\fC [pure virtual]\fP"
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Transformation function
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.PP
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\fBParameters\fP
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.RS 4
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\fIvalue\fP 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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Modified value
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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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\fBinvTransform()\fP
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.RE
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.PP
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.PP
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Implemented in \fBQwtPowerTransform\fP, \fBQwtLogTransform\fP, and \fBQwtNullTransform\fP\&.
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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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