qwtplotpicker.3

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.TH "QwtPlotPicker" 3 "4 Nov 2003" "Qwt User's Guide" \" -*- nroff -*-
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.SH NAME
QwtPlotPicker \- 
.SH SYNOPSIS
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.PP
Inherits \fBQwtPicker\fP.
.PP
Inherited by \fBQwtPlotZoomer\fP.
.PP
.SH "Detailed Description"
.PP 
QwtPlotPicker provides selections on a plot canvas. 

QwtPlotPicker is a \fBQwtPicker\fP tailored for selections on a plot canvas. It is set to a x-Axis and y-Axis and translates all pixel coordinates into this coodinate system. 
.PP
.SS "Public Member Functions"

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.RI "\fBQwtPlotPicker\fP (\fBQwtPlotCanvas\fP *, const  char *name=0)"
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.RI "\fBQwtPlotPicker\fP (int xAxis, int yAxis, \fBQwtPlotCanvas\fP *, const  char *name=0)"
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.RI "\fBQwtPlotPicker\fP (int xAxis, int yAxis, int selectionFlags, \fBRubberBand\fP rubberBand, \fBDisplayMode\fP cursorLabelMode, \fBQwtPlotCanvas\fP *, const  char *name=0)"
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.RI "virtual void \fBsetAxis\fP (int xAxis, int yAxis)"
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.RI "int \fBxAxis\fP () const "
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.RI "int \fByAxis\fP () const "
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.RI "\fBQwtPlot\fP * \fBplot\fP ()"
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.RI "const  \fBQwtPlot\fP * \fBplot\fP () const "
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.RI "\fBQwtPlotCanvas\fP * \fBcanvas\fP ()"
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.RI "const  \fBQwtPlotCanvas\fP * \fBcanvas\fP () const "
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.SS "Protected Member Functions"

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.RI "void \fBselected\fP (const  \fBQwtDoublePoint\fP &pos)"
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.RI "void \fBselected\fP (const  \fBQwtDoubleRect\fP &rect)"
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.RI "void \fBselected\fP (const  QwtArray< \fBQwtDoublePoint\fP > &pa)"
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.RI "void \fBappended\fP (const  \fBQwtDoublePoint\fP &pos)"
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.RI "void \fBmoved\fP (const  \fBQwtDoublePoint\fP &pos)"
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.RI "\fBQwtDoubleRect\fP \fBscaleRect\fP () const "
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.RI "\fBQwtDoubleRect\fP \fBinvTransform\fP (const  QRect &) const "
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.RI "QRect \fBtransform\fP (const  \fBQwtDoubleRect\fP &) const "
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.RI "\fBQwtDoublePoint\fP \fBinvTransform\fP (const  QPoint &) const "
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.RI "QPoint \fBtransform\fP (const  \fBQwtDoublePoint\fP &) const "
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.RI "virtual QString \fBcursorLabel\fP (const  QPoint &) const "
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.RI "virtual QString \fBcursorLabel\fP (const  \fBQwtDoublePoint\fP &) const "
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.RI "virtual void \fBmove\fP (const  QPoint &)"
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.RI "virtual void \fBappend\fP (const  QPoint &)"
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.RI "virtual bool \fBend\fP (bool ok=TRUE)"
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.SH "Constructor & Destructor Documentation"
.PP 
.SS "QwtPlotPicker::QwtPlotPicker (\fBQwtPlotCanvas\fP * canvas, const char * name = 0)"
.PP
Create a plot picker. The picker is set to those x- and y-axis of the plot that are enabled. If both or no x-axis are enabled, the picker is set to QwtPlot::xBottom. If both or no y-axis are enabled, it is set to QwtPlot::yLeft.
.PP
\fBParameters:\fP
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\fIcanvas\fP Plot canvas to observe, also the parent object 
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\fIname\fP Object name 
.RE
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.SS "QwtPlotPicker::QwtPlotPicker (int xAxis, int yAxis, \fBQwtPlotCanvas\fP * canvas, const char * name = 0)"
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Create a plot picker
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\fBParameters:\fP
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\fIxAxis\fP Set the x axis of the picker 
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\fIyAxis\fP Set the y axis of the picker 
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\fIcanvas\fP Plot canvas to observe, also the parent object 
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\fIname\fP Object name 
.RE
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.SS "QwtPlotPicker::QwtPlotPicker (int xAxis, int yAxis, int selectionFlags, \fBRubberBand\fP rubberBand, \fBDisplayMode\fP cursorLabelMode, \fBQwtPlotCanvas\fP * canvas, const char * name = 0)"
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Create a plot picker
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\fBParameters:\fP
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\fIxAxis\fP X axis of the picker 
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\fIyAxis\fP Y axis of the picker 
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\fIselectionFlags\fP Or磀 value of SelectionType, RectSelectionType and SelectionMode 
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\fIrubberBand\fP Rubberband style 
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\fIcursorLabelMode\fP Cursor label mode 
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\fIcanvas\fP Plot canvas to observe, also the parent object 
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\fIname\fP Object name
.RE
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\fBSee also:\fP
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\fBQwtPicker\fP, \fBQwtPicker::setSelectionFlags()\fP, \fBQwtPicker::setRubberBand()\fP, \fBQwtPicker::setCursorLabelMode\fP 
.RE
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.SH "Member Function Documentation"
.PP 
.SS "void QwtPlotPicker::append (const QPoint & pos)\fC [protected, virtual]\fP"
.PP
Append a point to the selection and update rubberband and cursor label.
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\fBParameters:\fP
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\fIpos\fP Additional point 
.RE
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\fBSee also:\fP
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\fBisActive\fP, \fBbegin()\fP, \fBend()\fP, \fBmove()\fP, \fBappended()\fP
.RE
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\fBNote:\fP
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The \fBappended(const QPoint &)\fP, appended(const QDoublePoint &) signals are emitted. 
.RE
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Reimplemented from \fBQwtPicker\fP.
.SS "void QwtPlotPicker::appended (const \fBQwtDoublePoint\fP & pos)\fC [protected]\fP"
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A signal emitted when a point has been appended to the selection
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\fBParameters:\fP
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\fIpos\fP Position of the appended point. 
.RE
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\fBSee also:\fP
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\fBappend()\fP. \fBmoved()\fP 
.RE
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.SS "const  \fBQwtPlotCanvas\fP * QwtPlotPicker::canvas () const"
.PP
Return Observed plot canvas. 
.SS "\fBQwtPlotCanvas\fP * QwtPlotPicker::canvas ()"
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Return observed plot canvas. 
.SS "QString QwtPlotPicker::cursorLabel (const \fBQwtDoublePoint\fP & pos) const\fC [protected, virtual]\fP"
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Translate a position into a position string. In case of HLineRubberBand the label is the value of the y position, in case of VLineRubberBand the value of the x position. Otherwise the label contains x and y position separated by a