126 lines
3.0 KiB
Groff
126 lines
3.0 KiB
Groff
.TH "QwtSplinePleasing" 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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QwtSplinePleasing \- A spline with G1 continuity\&.
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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_spline_pleasing\&.h>\fP
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.PP
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Inherits \fBQwtSplineG1\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 "\fBQwtSplinePleasing\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~QwtSplinePleasing\fP ()"
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.br
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.RI "Destructor\&. "
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.ti -1c
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.RI "virtual uint \fBlocality\fP () const override"
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.br
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.ti -1c
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.RI "virtual QPainterPath \fBpainterPath\fP (const QPolygonF &) const override"
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.br
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.RI "Interpolate a curve with Bezier curves\&. "
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.ti -1c
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.RI "virtual \fBQVector\fP< QLineF > \fBbezierControlLines\fP (const QPolygonF &) const override"
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.br
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.RI "Interpolate a curve with Bezier curves\&. "
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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 spline with G1 continuity\&.
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\fBQwtSplinePleasing\fP is some sort of cardinal spline, with non C1 continuous extra rules for narrow angles\&. It has a locality of 2\&.
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.PP
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\fBNote\fP
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.RS 4
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The algorithm is the one offered by a popular office package\&.
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.RE
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.PP
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.PP
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Definition at line 23 of file qwt_spline_pleasing\&.h\&.
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.SH "Constructor & Destructor Documentation"
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.PP
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.SS "QwtSplinePleasing::QwtSplinePleasing ()"
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.PP
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Constructor\&. The default setting is a non closing spline with uniform parametrization\&. ( \fBQwtSplineParametrization::ParameterUniform\fP )\&.
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.PP
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\fBSee also\fP
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.RS 4
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\fBQwtSpline::setParametrization()\fP, \fBQwtSpline::setBoundaryType()\fP
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.RE
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.PP
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.PP
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Definition at line 265 of file qwt_spline_pleasing\&.cpp\&.
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.SH "Member Function Documentation"
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.PP
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.SS "\fBQVector\fP< QLineF > QwtSplinePleasing::bezierControlLines (const QPolygonF & points) const\fC [override]\fP, \fC [virtual]\fP"
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.PP
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Interpolate a curve with Bezier curves\&. Interpolates a polygon piecewise with cubic Bezier curves and returns the 2 control points of each curve as QLineF\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIpoints\fP Control points
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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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Control points of the interpolating Bezier curves
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.RE
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.PP
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.PP
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Implements \fBQwtSplineInterpolating\fP\&.
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.PP
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Definition at line 327 of file qwt_spline_pleasing\&.cpp\&.
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.SS "uint QwtSplinePleasing::locality () const\fC [override]\fP, \fC [virtual]\fP"
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.PP
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\fBReturns\fP
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.RS 4
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2
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.RE
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.PP
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.PP
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Reimplemented from \fBQwtSpline\fP\&.
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.PP
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Definition at line 276 of file qwt_spline_pleasing\&.cpp\&.
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.SS "QPainterPath QwtSplinePleasing::painterPath (const QPolygonF & points) const\fC [override]\fP, \fC [virtual]\fP"
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.PP
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Interpolate a curve with Bezier curves\&. Interpolates a polygon piecewise with cubic Bezier curves and returns them as QPainterPath\&.
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.PP
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\fBParameters\fP
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.RS 4
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\fIpoints\fP Control points
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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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QPainterPath Painter path, that can be rendered by QPainter
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.RE
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.PP
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.PP
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Reimplemented from \fBQwtSplineInterpolating\fP\&.
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.PP
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Definition at line 290 of file qwt_spline_pleasing\&.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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