PointSourceNode Class Reference

#include <pointsourcenode.h>

Inheritance diagram for PointSourceNode:

Public Member Functions
	PointSourceNode (SkyObject *skyObject, RootNode *parentNode, LabelsItem::label_t labelType=LabelsItem::label_t::STAR_LABEL, char spType='A', float size=1, short trixel=-1)
virtual void	changePos (QPointF pos) override
virtual void	hide () override
float	starWidth (float mag) const
virtual void	update () override
void	updatePoint ()
void	updatePos (QPointF pos, bool drawLabel)
Public Member Functions inherited from SkyNode
	SkyNode (SkyObject *skyObject)
void	addChildNode (QSGNode *node)
int	hideCount ()
SkyMapLite *	map () const
const Projector *	projector ()
virtual void	show ()
SkyObject *	skyObject () const
void	update (bool drawLabel)
bool	visible ()
Public Member Functions inherited from QSGTransformNode
const QMatrix4x4 &	matrix () const const
void	setMatrix (const QMatrix4x4 &matrix)
Public Member Functions inherited from QSGNode
void	appendChildNode (QSGNode *node)
QSGNode *	childAtIndex (int i) const const
int	childCount () const const
QSGNode *	firstChild () const const
Flags	flags () const const
void	insertChildNodeAfter (QSGNode *node, QSGNode *after)
void	insertChildNodeBefore (QSGNode *node, QSGNode *before)
virtual bool	isSubtreeBlocked () const const
QSGNode *	lastChild () const const
void	markDirty (DirtyState bits)
QSGNode *	nextSibling () const const
QSGNode *	parent () const const
void	prependChildNode (QSGNode *node)
virtual void	preprocess ()
QSGNode *	previousSibling () const const
void	removeAllChildNodes ()
void	removeChildNode (QSGNode *node)
void	setFlag (Flag f, bool enabled)
void	setFlags (Flags f, bool enabled)
NodeType	type () const const

Additional Inherited Members
Public Types inherited from QSGNode
typedef	DirtyState
enum	DirtyStateBit
enum	Flag
typedef	Flags
enum	NodeType
Public Attributes inherited from SkyNode
SkyOpacityNode *	m_opacity { nullptr }
Public Attributes inherited from QSGNode
	BasicNodeType
	ClipNodeType
	DirtyForceUpdate
	DirtyGeometry
	DirtyMaterial
	DirtyMatrix
	DirtyNodeAdded
	DirtyNodeRemoved
	DirtyOpacity
	DirtyPropagationMask
	DirtySubtreeBlocked
	DirtyUsePreprocess
	GeometryNodeType
	InternalReserved
	IsVisitableNode
	OpacityNodeType
	OwnedByParent
	OwnsGeometry
	OwnsMaterial
	OwnsOpaqueMaterial
	RenderNodeType
	RootNodeType
	TransformNodeType
	UsePreprocess
Protected Attributes inherited from SkyNode
bool	m_drawLabel { false }
int	m_hideCount { 0 }
SkyObject *	m_skyObject { nullptr }

Detailed Description

A SkyNode derived class used for displaying PointNode with coordinates provided by SkyObject.

A SkyNode derived class that represents stars and objects that are drawn as stars

Author

Artem Fedoskin

Version

1.0

Definition at line 26 of file pointsourcenode.h.

Constructor & Destructor Documentation

PointSourceNode()

PointSourceNode::PointSourceNode	(	SkyObject *	skyObject,
		RootNode *	parentNode,
		LabelsItem::label_t	labelType = LabelsItem::label_t::STAR_LABEL,
		char	spType = 'A',
		float	size = 1,
		short	trixel = -1 )

Constructor.

Parameters

skyObject	pointer to SkyObject that has to be displayed on SkyMapLite
parentNode	pointer to the top parent node, which holds texture cache
labelType	label type of PointNode
spType	spectral class of PointNode
size	initial size of PointNode
trixel	trixelID, with which this node is indexed

Definition at line 18 of file pointsourcenode.cpp.

~PointSourceNode()

PointSourceNode::~PointSourceNode ( )

virtual

Definition at line 47 of file pointsourcenode.cpp.

Member Function Documentation

changePos()

void PointSourceNode::changePos ( QPointF pos )

overridevirtual

changePos changes the position m_point

Parameters

pos	new position

Reimplemented from SkyNode.

Definition at line 67 of file pointsourcenode.cpp.

hide()

void PointSourceNode::hide ( )

overridevirtual

hides this node and its label.

m_point is hided without explicitly doing this because it is a child node of m_opacity inherited from SkyNode

Reimplemented from SkyNode.

Definition at line 128 of file pointsourcenode.cpp.

starWidth()

float PointSourceNode::starWidth

(

float

mag

)

const

Get the width of a star of magnitude mag.

Definition at line 25 of file pointsourcenode.cpp.

update()

void PointSourceNode::update ( )

overridevirtual

update updates coordinates of this node based on the visibility of its SkyObject

Reimplemented from SkyNode.

Definition at line 77 of file pointsourcenode.cpp.

updatePoint()

void PointSourceNode::updatePoint

(

)

updatePoint initializes PointNode if not done that yet.

Makes it visible and updates its size. By using this function we can save some memory because m_point is created only when this PointSourceNode becomes visible.

Definition at line 56 of file pointsourcenode.cpp.

updatePos()

void PointSourceNode::updatePos	(	QPointF	pos,
		bool	drawLabel )

updatePos updates position of this node and its label.

Initializes label if needed The reason behind this function is that in StarItem we are already checking the visibility of star to decide whether we need to create this node or no. So to avoid calculating the same thing twice we set position of object directly. Also through this function StarItem sets the visibility of label

Parameters

pos	position of this node on SkyMapLite
drawLabel	true if label has to be drawn

Definition at line 99 of file pointsourcenode.cpp.

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

• pointsourcenode.h
• pointsourcenode.cpp