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.TH "QwtCPointerData" 3 "Thu Dec 11 2014" "Version 6.1.2" "Qwt User's Guide" \" -*- nroff -*-
.ad l
.nh
.SH NAME
QwtCPointerData \-
.PP
Data class containing two pointers to memory blocks of doubles\&.
.SH SYNOPSIS
.br
.PP
.PP
\fC#include <qwt_point_data\&.h>\fP
.PP
Inherits \fBQwtSeriesData< QPointF >\fP\&.
.SS "Public Member Functions"
.in +1c
.ti -1c
.RI "\fBQwtCPointerData\fP (const double *x, const double *y, size_t \fBsize\fP)"
.br
.ti -1c
.RI "virtual QRectF \fBboundingRect\fP () const "
.br
.RI "\fICalculate the bounding rectangle\&. \fP"
.ti -1c
.RI "virtual size_t \fBsize\fP () const "
.br
.ti -1c
.RI "virtual QPointF \fBsample\fP (size_t i) const "
.br
.ti -1c
.RI "const double * \fBxData\fP () const "
.br
.ti -1c
.RI "const double * \fByData\fP () const "
.br
.in -1c
.SS "Additional Inherited Members"
.SH "Detailed Description"
.PP
Data class containing two pointers to memory blocks of doubles\&.
.SH "Constructor & Destructor Documentation"
.PP
.SS "QwtCPointerData::QwtCPointerData (const double *x, const double *y, size_tsize)"
Constructor
.PP
\fBParameters:\fP
.RS 4
\fIx\fP Array of x values
.br
\fIy\fP Array of y values
.br
\fIsize\fP Size of the x and y arrays
.RE
.PP
\fBWarning:\fP
.RS 4
The programmer must assure that the memory blocks referenced by the pointers remain valid during the lifetime of the QwtPlotCPointer object\&.
.RE
.PP
\fBSee Also:\fP
.RS 4
\fBQwtPlotCurve::setData()\fP, \fBQwtPlotCurve::setRawSamples()\fP
.RE
.PP
.SH "Member Function Documentation"
.PP
.SS "QRectF QwtCPointerData::boundingRect () const\fC [virtual]\fP"
.PP
Calculate the bounding rectangle\&. The bounding rectangle is calculated once by iterating over all points and is stored for all following requests\&.
.PP
\fBReturns:\fP
.RS 4
Bounding rectangle
.RE
.PP
.PP
Implements \fBQwtSeriesData< QPointF >\fP\&.
.SS "QPointF QwtCPointerData::sample (size_tindex) const\fC [virtual]\fP"
Return the sample at position i
.PP
\fBParameters:\fP
.RS 4
\fIindex\fP Index
.RE
.PP
\fBReturns:\fP
.RS 4
Sample at position i
.RE
.PP
.PP
Implements \fBQwtSeriesData< QPointF >\fP\&.
.SS "size_t QwtCPointerData::size () const\fC [virtual]\fP"
.PP
\fBReturns:\fP
.RS 4
Size of the data set
.RE
.PP
.PP
Implements \fBQwtSeriesData< QPointF >\fP\&.
.SS "const double * QwtCPointerData::xData () const"
.PP
\fBReturns:\fP
.RS 4
Array of the x-values
.RE
.PP
.SS "const double * QwtCPointerData::yData () const"
.PP
\fBReturns:\fP
.RS 4
Array of the y-values
.RE
.PP
.SH "Author"
.PP
Generated automatically by Doxygen for Qwt User's Guide from the source code\&.
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