disti::GlsMapView Class Reference

#include <gls_map_view.h>

Inheritance diagram for disti::GlsMapView:

Public Member Functions
	GlsMapView (bool generateInstance=false)
virtual	~GlsMapView ()
virtual void	SetAvailableAttributes (unsigned int value)
virtual DisplayObject *	CloneObject (bool generateNames=false)
virtual void	CopyProperties (DisplayObject *src)
virtual InterfaceListType *	GetCppInterfaceDescription (InterfaceListType *addToThisList=NULL)
virtual void	GetCppInterfaceDescriptionFree (InterfaceListType *array)
virtual void	PreDraw (const OpenGLMatrices &parentMatrices, Culler &culler)
virtual void	Draw (void)
virtual DisplayObject *	Pick3D (const Vector &winLoc, const Vector &logicalCoords, float scale, const Vector &directionVector, Vector &collisionWinLoc, const OpenGLMatrices &drawnMatrices)
virtual DisplayObject *	handle (DisplayEvent *ev)
virtual void	SetValue (int spec, va_list &args)
void	SetProjectionType (ProjectionType value)
ProjectionType	GetProjectionType () const
void	MapCenterOffset (const Vector &value)
Vector	MapCenterOffset ()
void	ViewLocation (const GeoCoord &value)
GeoCoord	ViewLocation ()
void	SetProjectionOffset (const GeoCoord &value)
GeoCoord	GetProjectionOffset ()
void	ViewHeading (const float &value)
float	ViewHeading ()
void	ViewHeight (const double &value)
double	ViewHeight ()
void	ClipMap (const bool &value)
bool	ClipMap ()
DisplayObject *	GetBackgroundObject ()
const GeoRect &	GetVisibleRegion () const
void	LonLatToLogical (double lon, double lat, Vector *logical_out) const
void	GeoCoordToLogical (const GeoCoord &geo, Vector *logical) const
void	LogicalToGeoCoord (const Vector &logical, GeoCoord *geo) const
const GlsMatrixAffineD &	GetGeoToLogicalMatrix () const
double	ViewLogicalHeight (void) const
void	CalcGeoToLogicalMatrix () const
void	CalcVisibleRegion () const

Static Public Member Functions
static DisplayObject *	CreateInstance ()

Protected Member Functions
void	VisibleRegionCheckVert (const Vector &v, GeoRect &rect) const

Protected Attributes
ProjectionType	_projectionType
GeoCoord	_projectionOffset
Vector	_mapCenterOffset
GeoCoord	_viewLocation
float	_viewHeading
double	_viewHeight
double	_viewLogicalHeight
bool	_clipMapView
bool	_geoToLogicalMatricesValid
GlsMatrixAffineD	_geoToLogicalMatrix
GlsMatrixAffineD	_logicalToGeoMatrix
GeoRect	_visibleRegion

Friends
class	GlsMapViewEditor

Detailed Description

A GLPolygon must be included as the first child under the GlsMapView. This defines a clipping area for the map display.

Constructor & Destructor Documentation

disti::GlsMapView::GlsMapView

(

bool

generateInstance = false

)

Create a new GlsMapView.

Parameters

generateInstance

Whether or not to generate an instance name for this inputdevice

disti::GlsMapView::~GlsMapView ( )

virtual

Destructs a GlsMapView object

Member Function Documentation

void disti::GlsMapView::CalcGeoToLogicalMatrix

(

)

const

This method not normally called by user. It may change in future versions of GlsMapView.

void disti::GlsMapView::CalcVisibleRegion

(

)

const

This method not normally called by user. It may change in future versions of GlsMapView.

void disti::GlsMapView::ClipMap

(

const bool &

value

)

When true, the contents of the map will be clipped to draw only within the GlsMapView. You may want to disable this if you are using another method to clip/occlude the map.

void disti::GlsMapView::GeoCoordToLogical ( const GeoCoord &  geo, Vector *  logical  ) const

inline

Transform a GeoCoord coordinate to the GlsMapView logical coordinates

Parameters

geo	The GeoCoord to transform
logical	Pointer to a Vector to receive the transformed logical coordinate

DisplayObject* disti::GlsMapView::GetBackgroundObject ( )

inline

Returns

Pointer to the object that defines the plane of the map or NULL if the object is not found.

const GlsMatrixAffineD& disti::GlsMapView::GetGeoToLogicalMatrix ( ) const

inline

Returns

The matrix used by the GlsMapView to transform lon/lat coordinates to logical coordinates. This matrix may be used to transform Vectors or applied to the OpenGL modelview matrix to allow drawing by passing lon/lat coordinates directly to OpenGL. This matrix is recalculated whenever the GlsMapView is drawn.

GeoCoord disti::GlsMapView::GetProjectionOffset ( )

inline

Get the projection offset that the map is viewing.

Returns

GeoCoord current projection offset for the map being viewed

const GeoRect& disti::GlsMapView::GetVisibleRegion ( ) const

inline

Return a GeoRect that encompasses the visible region. If an object is outside of the visible region, it will not be drawn.

void disti::GlsMapView::LogicalToGeoCoord	(	const Vector &	logical,
		GeoCoord *	geo
	)		const

Determine the GeoCoord for a given logical coordinate.

Parameters

geo	Vector containing the logical coordinate to transform
logical	Pointer to a GeoCoord to receive the transformed coordinate

void disti::GlsMapView::LonLatToLogical	(	double	lon,
		double	lat,
		Vector *	logical_out
	)		const

Transform a lon/lat coordinate to the GlsMapView logical coordinates

Parameters

lon	longitude in degrees
lat	latitude in degrees
logical_out	Pointer to a Vector to receive the transformed logical coordinate

void disti::GlsMapView::MapCenterOffset

(

const Vector &

value

)

Offset that is applied to the center of the map (in logical coordinates) This does not change the geographical location being displayed by the map, but rather moves the screen position that that map center is placed at. This is the point that the map rotates around when the ViewHeading changes.

void disti::GlsMapView::SetProjectionOffset

(

const GeoCoord &

value

)

Set the projection offset for this map. This does not change the geographical location being displayed by the map, but it does affect how each cell is projected.

Parameters

value

the new offset to be used for projection

void disti::GlsMapView::SetProjectionType

(

ProjectionType

value

)

Selects the projection type for the map. Legacy behavior (unprojected / equirectangular / plate carree) is the default.

void disti::GlsMapView::ViewHeading

(

const float &

value

)

Set the rotation of the map in degrees (true north).

Parameters

value

desired map rotation

float disti::GlsMapView::ViewHeading ( )

inline

Get the rotation of the map in degrees (true north).

Returns

float current rotation for the map being viewed

void disti::GlsMapView::ViewHeight

(

const double &

value

)

Set the height of the region that the map should display in degrees latitude. The width is determined from the height based on the aspect ratio of the view. Use this to control the the zoom level of the map Useful conversion factors: 1 degree latitude = 60 nautical miles = 111120 meters

void disti::GlsMapView::ViewLocation

(

const GeoCoord &

value

)

Set the geographical location that the map is viewing.

Parameters

value

new geographic location for the map being viewed

GeoCoord disti::GlsMapView::ViewLocation ( )

inline

Get the geographical location that the map is viewing.

Returns

GeoCoord current geographic location for the map being viewed

double disti::GlsMapView::ViewLogicalHeight ( void  ) const

inline

Get the height in logical units of the background object that defines the plane of the map

Returns

height in logical units of the background object that defines the plane of the map

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

• gls_map_view.h
• gls_map_view.cpp