.TH "QwtVectorFieldArrow" 3 "Sun Jul 18 2021" "Version 6.2.0" "Qwt User's Guide" \" -*- nroff -*- .ad l .nh .SH NAME QwtVectorFieldArrow .SH SYNOPSIS .br .PP .PP \fC#include \fP .PP Inherits \fBQwtVectorFieldSymbol\fP\&. .SS "Public Member Functions" .in +1c .ti -1c .RI "\fBQwtVectorFieldArrow\fP (qreal headWidth=6\&.0, qreal tailWidth=1\&.0)" .br .RI "Constructor\&. " .ti -1c .RI "virtual \fB~QwtVectorFieldArrow\fP () override" .br .RI "Destructor\&. " .ti -1c .RI "virtual void \fBsetLength\fP (qreal \fBlength\fP) override" .br .ti -1c .RI "virtual qreal \fBlength\fP () const override" .br .ti -1c .RI "virtual void \fBpaint\fP (QPainter *) const override" .br .RI "Draw the symbol/arrow\&. " .in -1c .SH "Detailed Description" .PP Arrow implementation that draws a filled arrow with outline, using a triangular head of constant width\&. .PP Definition at line 61 of file qwt_vectorfield_symbol\&.h\&. .SH "Constructor & Destructor Documentation" .PP .SS "QwtVectorFieldArrow::QwtVectorFieldArrow (qreal headWidth = \fC6\&.0\fP, qreal tailWidth = \fC1\&.0\fP)" .PP Constructor\&. The length is initialized by headWidth + 4 .PP \fBParameters\fP .RS 4 \fIheadWidth\fP Width of the triangular head .br \fItailWidth\fP Width of the arrow tail .RE .PP \fBSee also\fP .RS 4 \fBsetLength()\fP .RE .PP .PP Definition at line 74 of file qwt_vectorfield_symbol\&.cpp\&. .SH "Member Function Documentation" .PP .SS "qreal QwtVectorFieldArrow::length () const\fC [override]\fP, \fC [virtual]\fP" .PP \fBReturns\fP .RS 4 length of the symbol/arrow .RE .PP \fBSee also\fP .RS 4 \fBsetLength()\fP .RE .PP .PP Implements \fBQwtVectorFieldSymbol\fP\&. .PP Definition at line 90 of file qwt_vectorfield_symbol\&.cpp\&. .SS "void QwtVectorFieldArrow::setLength (qreal length)\fC [override]\fP, \fC [virtual]\fP" Set the length of the symbol/arrow .PP \fBSee also\fP .RS 4 \fBlength()\fP .RE .PP .PP Implements \fBQwtVectorFieldSymbol\fP\&. .PP Definition at line 85 of file qwt_vectorfield_symbol\&.cpp\&. .SH "Author" .PP Generated automatically by Doxygen for Qwt User's Guide from the source code\&.