150 lines
3.2 KiB
Groff
150 lines
3.2 KiB
Groff
.TH "QwtCompassScaleDraw" 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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QwtCompassScaleDraw \- A special scale draw made for \fBQwtCompass\fP\&.
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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_compass\&.h>\fP
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.PP
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Inherits \fBQwtRoundScaleDraw\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 "\fBQwtCompassScaleDraw\fP ()"
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.br
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.RI "Constructor\&. "
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.ti -1c
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.RI "\fBQwtCompassScaleDraw\fP (const \fBQMap\fP< double, QString > &map)"
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.br
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.RI "Constructor\&. "
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.ti -1c
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.RI "virtual \fB~QwtCompassScaleDraw\fP ()"
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.br
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.RI "Destructor\&. "
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.ti -1c
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.RI "void \fBsetLabelMap\fP (const \fBQMap\fP< double, QString > &map)"
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.br
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.RI "Set a map, mapping values to labels\&. "
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.ti -1c
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.RI "\fBQMap\fP< double, QString > \fBlabelMap\fP () const"
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.br
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.ti -1c
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.RI "virtual \fBQwtText\fP \fBlabel\fP (double value) const override"
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.br
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.in -1c
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.SS "Additional Inherited Members"
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.SH "Detailed Description"
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.PP
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A special scale draw made for \fBQwtCompass\fP\&.
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\fBQwtCompassScaleDraw\fP maps values to strings using a special map, that can be modified by the application
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.PP
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The default map consists of the labels N, NE, E, SE, S, SW, W, NW\&.
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.PP
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\fBSee also\fP
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.RS 4
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\fBQwtCompass\fP
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.RE
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.PP
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.PP
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Definition at line 32 of file qwt_compass\&.h\&.
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.SH "Constructor & Destructor Documentation"
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.PP
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.SS "QwtCompassScaleDraw::QwtCompassScaleDraw ()\fC [explicit]\fP"
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.PP
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Constructor\&. Initializes a label map for multiples of 45 degrees
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.PP
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Definition at line 28 of file qwt_compass\&.cpp\&.
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.SS "QwtCompassScaleDraw::QwtCompassScaleDraw (const \fBQMap\fP< double, QString > & map)\fC [explicit]\fP"
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.PP
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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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\fImap\fP Value to label map
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.RE
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.PP
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.PP
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Definition at line 63 of file qwt_compass\&.cpp\&.
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.SH "Member Function Documentation"
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.PP
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.SS "\fBQwtText\fP QwtCompassScaleDraw::label (double value) const\fC [override]\fP, \fC [virtual]\fP"
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Map a value to a corresponding label
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.PP
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\fBParameters\fP
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.RS 4
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\fIvalue\fP Value that will be mapped
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.RE
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.PP
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\fBlabel()\fP looks in the \fBlabelMap()\fP for a corresponding label for value or returns an null text\&.
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.PP
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\fBReturns\fP
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.RS 4
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Label
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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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\fBlabelMap()\fP, \fBsetLabelMap()\fP
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.RE
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.PP
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.PP
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Reimplemented from \fBQwtAbstractScaleDraw\fP\&.
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.PP
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Definition at line 116 of file qwt_compass\&.cpp\&.
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.SS "\fBQMap\fP< double, QString > QwtCompassScaleDraw::labelMap () const"
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.PP
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\fBReturns\fP
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.RS 4
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map, mapping values to labels
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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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\fBsetLabelMap()\fP
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.RE
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.PP
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.PP
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Definition at line 99 of file qwt_compass\&.cpp\&.
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.SS "void QwtCompassScaleDraw::setLabelMap (const \fBQMap\fP< double, QString > & map)"
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.PP
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Set a map, mapping values to labels\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fImap\fP Value to label map
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.RE
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.PP
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The values of the major ticks are found by looking into this map\&. The default map consists of the labels N, NE, E, SE, S, SW, W, NW\&.
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.PP
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\fBWarning\fP
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.RS 4
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The map will have no effect for values that are no major tick values\&. Major ticks can be changed by QwtScaleDraw::setScale
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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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\fBlabelMap()\fP, scaleDraw(), setScale()
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.RE
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.PP
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.PP
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Definition at line 90 of file qwt_compass\&.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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