Camera Class Reference

Class responsible for the correct visualization of the elements on screen. More...

#include <Camera.h>

Public Member Functions
void	SetScale (wxPoint2DDouble screenPoint, double delta)
void	SetScale (double scale)
void	SetTranslation (wxPoint2DDouble screenPoint)
void	StartTranslation (wxPoint2DDouble startPoint)
void	UpdateMousePosition (wxPoint2DDouble mousePosition)
double	GetScale () const
wxPoint2DDouble	GetTranslation () const
wxPoint2DDouble	GetMousePosition (bool worldCoords=true) const
wxPoint2DDouble	ScreenToWorld (wxPoint2DDouble screenCoords) const
double	GetZoomMin () const
double	GetZoomMax () const

Protected Attributes
wxPoint2DDouble	m_translation
wxPoint2DDouble	m_translationStartPt
double	m_scale
wxPoint2DDouble	m_mousePosition
double	m_zoomMin = 0.01
double	m_zoomMax = 3.0

Detailed Description

Class responsible for the correct visualization of the elements on screen.

Author

Thales Lima Oliveira thale.nosp@m.s@uf.nosp@m.u.br

Date

05/10/2017

Definition at line 30 of file Camera.h.

Constructor & Destructor Documentation

Camera()

Camera::Camera

(

)

Definition at line 20 of file Camera.cpp.

{
    m_translation = wxPoint2DDouble(0, 0);
    m_scale = 1.0;
}

~Camera()

Camera::~Camera

(

)

Definition at line 26 of file Camera.cpp.

{}

Member Function Documentation

GetMousePosition()

wxPoint2DDouble Camera::GetMousePosition

(

bool

worldCoords = true

)

const

Definition at line 51 of file Camera.cpp.

{
    if(worldCoords) return ScreenToWorld(m_mousePosition);
    return m_mousePosition;
}

GetScale()

double Camera::GetScale ( ) const

inline

Definition at line 41 of file Camera.h.

{ return m_scale; }

GetTranslation()

wxPoint2DDouble Camera::GetTranslation ( ) const

inline

Definition at line 42 of file Camera.h.

{ return m_translation; }

GetZoomMax()

double Camera::GetZoomMax ( ) const

inline

Definition at line 46 of file Camera.h.

{ return m_zoomMax; }

GetZoomMin()

double Camera::GetZoomMin ( ) const

inline

Definition at line 45 of file Camera.h.

{ return m_zoomMin; }

ScreenToWorld()

wxPoint2DDouble Camera::ScreenToWorld

(

wxPoint2DDouble

screenCoords

)

const

Definition at line 27 of file Camera.cpp.

{
    return wxPoint2DDouble(screenCoords.m_x / m_scale - m_translation.m_x,
                           screenCoords.m_y / m_scale - m_translation.m_y);
}

SetScale() [1/2]

void Camera::SetScale ( double  scale )

inline

Definition at line 37 of file Camera.h.

{ m_scale = scale; }

SetScale() [2/2]

void Camera::SetScale	(	wxPoint2DDouble	screenPoint,
		double	delta
	)

Definition at line 38 of file Camera.cpp.

{
    m_translation -= screenPoint * (1.0 - m_scale) / m_scale;
 
    m_scale += delta;
 
    // Limits: 5% - 300%
    if(m_scale < m_zoomMin) m_scale = m_zoomMin;
    if(m_scale > m_zoomMax) m_scale = m_zoomMax;
 
    m_translation += screenPoint * (1.0 - m_scale) / m_scale;
}

SetTranslation()

void Camera::SetTranslation

(

wxPoint2DDouble

screenPoint

)

Definition at line 33 of file Camera.cpp.

{
    m_translation = screenPoint / m_scale - m_translationStartPt;
}

StartTranslation()

void Camera::StartTranslation ( wxPoint2DDouble  startPoint )

inline

Definition at line 39 of file Camera.h.

{ this->m_translationStartPt = startPoint; }

UpdateMousePosition()

void Camera::UpdateMousePosition ( wxPoint2DDouble  mousePosition )

inline

Definition at line 40 of file Camera.h.

{ this->m_mousePosition = mousePosition; }

Member Data Documentation

m_mousePosition

wxPoint2DDouble Camera::m_mousePosition

protected

Definition at line 52 of file Camera.h.

m_scale

double Camera::m_scale

protected

Definition at line 50 of file Camera.h.

m_translation

wxPoint2DDouble Camera::m_translation

protected

Definition at line 48 of file Camera.h.

m_translationStartPt

wxPoint2DDouble Camera::m_translationStartPt

protected

Definition at line 49 of file Camera.h.

m_zoomMax

double Camera::m_zoomMax = 3.0

protected

Definition at line 55 of file Camera.h.

m_zoomMin

double Camera::m_zoomMin = 0.01

protected

Definition at line 54 of file Camera.h.

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

• Project/utils/Camera.h
• Project/utils/Camera.cpp