QGIS API Documentation 3.27.0-Master (a46f227e17)
Bezier3D.h
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1/***************************************************************************
2 Bezier3D.h - description
3 -------------------
4 copyright : (C) 2004 by Marco Hugentobler
6 ***************************************************************************/
7
8/***************************************************************************
9 * *
10 * This program is free software; you can redistribute it and/or modify *
11 * it under the terms of the GNU General Public License as published by *
12 * the Free Software Foundation; either version 2 of the License, or *
13 * (at your option) any later version. *
14 * *
15 ***************************************************************************/
16
17#ifndef BEZIER3D_H
18#define BEZIER3D_H
19
20#include "ParametricLine.h"
21#include "qgslogger.h"
22#include "qgis_analysis.h"
23
24#define SIP_NO_FILE
25
33class ANALYSIS_EXPORT Bezier3D: public ParametricLine
34{
35 protected:
36
37 public:
39 Bezier3D() = default;
41 Bezier3D( ParametricLine *par, QVector<QgsPoint *> *controlpoly );
42
44 void add( ParametricLine *pl SIP_TRANSFER ) override;
46 void calcFirstDer( float t, Vector3D *v SIP_OUT ) override;
48 void calcSecDer( float t, Vector3D *v SIP_OUT ) override;
49 //virtual QgsPoint calcPoint(float t);
51 void calcPoint( float t, QgsPoint *p SIP_OUT ) override;
53 void changeDirection() override;
54 //virtual void draw(QPainter* p);
55 //virtual bool intersects(ParametricLine* pal);
57 void remove( int i ) override;
59 const QgsPoint *getControlPoint( int number ) const override;
61 const QVector<QgsPoint *> *getControlPoly() const override;
63 int getDegree() const override;
65 ParametricLine *getParent() const override;
67 void setParent( ParametricLine *par ) override;
69 void setControlPoly( QVector<QgsPoint *> *cp ) override;
70
71};
72
73#ifndef SIP_RUN
74
75//-----------------------------------------------constructors, destructor and assignment operator------------------------------
76
77inline Bezier3D::Bezier3D( ParametricLine *parent, QVector<QgsPoint *> *controlpoly ) : ParametricLine( parent, controlpoly )
78{
79 mDegree = mControlPoly->count() - 1;
80}
81
82//----------------------------------------------invalid methods add and remove (because of inheritance from ParametricLine)
83
84inline void Bezier3D::add( ParametricLine *pl )
85{
86 Q_UNUSED( pl )
87 QgsDebugMsg( QStringLiteral( "Error!!!!! A Bezier-curve can not be parent of a ParametricLine." ) );
88}
89
90inline void Bezier3D::remove( int i )
91{
92 Q_UNUSED( i )
93 QgsDebugMsg( QStringLiteral( "Error!!!!! A Bezier-curve has no children to remove." ) );
94}
95
96//-----------------------------------------------setters and getters---------------------------------------------------------------
97
98inline const QgsPoint *Bezier3D::getControlPoint( int number ) const
99{
100 return ( *mControlPoly )[number - 1];
101}
102
103inline const QVector<QgsPoint *> *Bezier3D::getControlPoly() const
104{
105 return mControlPoly;
106}
107
108inline int Bezier3D::getDegree() const
109{
110 return mDegree;
111}
112
114{
115 return mParent;
116}
117
119{
120 mParent = par;
121}
122
123inline void Bezier3D::setControlPoly( QVector<QgsPoint *> *cp )
124{
125 mControlPoly = cp;
126 mDegree = mControlPoly->count() - 1;
127}
128
129#endif
130
131#endif
132
Class Bezier3D represents a bezier curve, represented by control points.
Definition: Bezier3D.h:34
void remove(int i) override
Do not use this method, since a Bezier curve does not consist of other curves.
Definition: Bezier3D.h:90
void add(ParametricLine *pl) override
Do not use this method, since a Bezier curve does not consist of other curves.
Definition: Bezier3D.h:84
const QgsPoint * getControlPoint(int number) const override
Returns a control point.
Definition: Bezier3D.h:98
Bezier3D()=default
Default constructor.
const QVector< QgsPoint * > * getControlPoly() const override
Returns a pointer to the control polygon.
Definition: Bezier3D.h:103
ParametricLine * getParent() const override
Returns the parent.
Definition: Bezier3D.h:113
void setParent(ParametricLine *par) override
Sets the parent.
Definition: Bezier3D.h:118
int getDegree() const override
Returns the degree of the curve.
Definition: Bezier3D.h:108
void setControlPoly(QVector< QgsPoint * > *cp) override
Sets the control polygon.
Definition: Bezier3D.h:123
ParametricLine is an Interface for parametric lines.
virtual const QVector< QgsPoint * > * getControlPoly() const =0
virtual void setParent(ParametricLine *paral)=0
virtual void remove(int i)=0
int mDegree
Degree of the parametric Line.
virtual void changeDirection()=0
virtual int getDegree() const =0
virtual void calcSecDer(float t, Vector3D *v)=0
virtual void add(ParametricLine *pl)=0
virtual const QgsPoint * getControlPoint(int number) const =0
ParametricLine * mParent
Pointer to the parent object. If there isn't one, mParent is 0.
virtual void calcFirstDer(float t, Vector3D *v)=0
virtual void setControlPoly(QVector< QgsPoint * > *cp)=0
QVector< QgsPoint * > * mControlPoly
MControlPoly stores the points of the control polygon.
virtual ParametricLine * getParent() const =0
virtual void calcPoint(float t, QgsPoint *p)=0
Point geometry type, with support for z-dimension and m-values.
Definition: qgspoint.h:49
Class Vector3D represents a 3D-Vector, capable to store x-,y- and z-coordinates in double values.
Definition: Vector3D.h:36
#define SIP_TRANSFER
Definition: qgis_sip.h:36
#define SIP_OUT
Definition: qgis_sip.h:58
#define QgsDebugMsg(str)
Definition: qgslogger.h:38