DGtal 1.4.2
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LibBoard::Transform Struct Referenceabstract

base class for transforms. More...

#include <Board/Transforms.h>

Inheritance diagram for LibBoard::Transform:
[legend]

Public Member Functions

 Transform ()
 
virtual ~Transform ()
 
virtual double mapX (double x) const
 
virtual double mapY (double y) const =0
 
virtual void apply (double &x, double &y) const
 
virtual double scale (double x) const
 
virtual double rounded (double x) const
 
virtual void setBoundingBox (const Rect &rect, const double pageWidth, const double pageHeight, const double margin)=0
 

Static Public Member Functions

static double round (const double &x)
 

Protected Attributes

double _scale
 
double _deltaX
 
double _deltaY
 
double _height
 

Detailed Description

base class for transforms.

The base class for transforms.

Definition at line 31 of file Transforms.h.

Constructor & Destructor Documentation

◆ Transform()

LibBoard::Transform::Transform ( )
inline

Definition at line 6 of file Transforms.h.

21 {
22
23struct Rect;
24struct Shape;
25struct ShapeList;
26
31struct Transform {
32public:
33 inline Transform();
34 virtual ~Transform() { };
35 virtual double mapX( double x ) const;
36 virtual double mapY( double y ) const = 0;
37 virtual void apply( double & x, double & y ) const;
38 virtual double scale( double x ) const;
39 virtual double rounded( double x ) const;
40 virtual void setBoundingBox( const Rect & rect,
41 const double pageWidth,
42 const double pageHeight,
43 const double margin ) = 0;
44
45 static inline double round( const double & x );
46
47protected:
48 double _scale;
49 double _deltaX;
50 double _deltaY;
51 double _height;
52};
53
59struct TransformEPS : public Transform {
60public:
61 double mapY( double y ) const;
62 void setBoundingBox( const Rect & rect,
63 const double pageWidth,
64 const double pageHeight,
65 const double margin );
66};
67
73struct TransformFIG : public Transform {
74public:
75 inline TransformFIG();
76 double rounded( double x ) const;
77 double mapY( double y ) const;
78 int mapWidth( double width ) const;
79 void setBoundingBox( const Rect & rect,
80 const double pageWidth,
81 const double pageHeight,
82 const double margin );
83 void setDepthRange( const ShapeList & shapes );
84 int mapDepth( int depth ) const;
85private:
86 int _maxDepth;
87 int _minDepth;
88};
89
95struct TransformSVG : public Transform {
96public:
97 double rounded( double x ) const;
98 double mapY( double y ) const;
99 double mapWidth( double width ) const;
100 void setBoundingBox( const Rect & rect,
101 const double pageWidth,
102 const double pageHeight,
103 const double margin );
104};
105
106#ifdef WITH_CAIRO
112struct TransformCairo : public Transform {
113public:
114 double rounded( double x ) const;
115 double mapY( double y ) const;
116 double mapWidth( double width ) const;
117 void setBoundingBox( const Rect & rect,
118 const double pageWidth,
119 const double pageHeight,
120 const double margin );
121};
122#endif
123
129struct TransformTikZ : public TransformSVG {
130};
131
132#include "Transforms.ih"
133
134} // namespace LibBoard
135
136#endif /* _TRANSFORMS_H_ */
virtual double mapX(double x) const
virtual void apply(double &x, double &y) const
virtual void setBoundingBox(const Rect &rect, const double pageWidth, const double pageHeight, const double margin)=0
static double round(const double &x)
Definition Transforms.h:15
virtual ~Transform()
Definition Transforms.h:34
virtual double mapY(double y) const =0
virtual double rounded(double x) const

◆ ~Transform()

virtual LibBoard::Transform::~Transform ( )
inlinevirtual

Definition at line 34 of file Transforms.h.

34{ };

Member Function Documentation

◆ apply()

void LibBoard::Transform::apply ( double & x,
double & y ) const
virtual

Definition at line 51 of file Transforms.cpp.

52{
53 x = mapX( x );
54 y = mapY( y );
55}

References mapX(), and mapY().

◆ mapX()

double LibBoard::Transform::mapX ( double x) const
virtual

Definition at line 39 of file Transforms.cpp.

40{
41 return rounded( x * _scale + _deltaX );
42}

References _deltaX, _scale, and rounded().

Referenced by apply().

◆ mapY()

virtual double LibBoard::Transform::mapY ( double y) const
pure virtual

◆ round()

◆ rounded()

double LibBoard::Transform::rounded ( double x) const
virtual

Reimplemented in LibBoard::TransformCairo, LibBoard::TransformFIG, and LibBoard::TransformSVG.

Definition at line 33 of file Transforms.cpp.

34{
35 return Transform::round( 1000000*x ) / 1000000;
36}

References round().

Referenced by mapX(), LibBoard::TransformEPS::mapY(), and scale().

◆ scale()

double LibBoard::Transform::scale ( double x) const
virtual

Definition at line 45 of file Transforms.cpp.

46{
47 return rounded( x * _scale );
48}

References _scale, and rounded().

◆ setBoundingBox()

virtual void LibBoard::Transform::setBoundingBox ( const Rect & rect,
const double pageWidth,
const double pageHeight,
const double margin )
pure virtual

Field Documentation

◆ _deltaX

◆ _deltaY

◆ _height

◆ _scale


The documentation for this struct was generated from the following files: