DeepSkyItem
DeepSkyItem Class Reference
#include <deepskyitem.h>
Inheritance diagram for DeepSkyItem:
Public Member Functions | |
DeepSkyItem (DeepSkyComponent *dsoComp, RootNode *rootNode) | |
virtual void | update () |
void | updateDeepSkyNode (DSOIndexNode *node, bool drawObject, MeshIterator *region, bool drawImage=false) |
Public Member Functions inherited from SkyItem | |
SkyItem (LabelsItem::label_t labelType, RootNode *rootNode=nullptr) | |
virtual | ~SkyItem () |
virtual void | hide () override |
void | hideLabels () |
LabelsItem::label_t | labelType () |
RootNode * | rootNode () |
virtual void | show () override |
Public Member Functions inherited from SkyOpacityNode | |
bool | visible () |
Public Member Functions inherited from QSGOpacityNode | |
qreal | opacity () const const |
void | setOpacity (qreal opacity) |
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 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 | |
Detailed Description
Class that handles representation of Deep Sky Objects.
- Version
- 1.0
Definition at line 65 of file deepskyitem.h.
Constructor & Destructor Documentation
◆ DeepSkyItem()
DeepSkyItem::DeepSkyItem | ( | DeepSkyComponent * | dsoComp, |
RootNode * | rootNode ) |
Constructor.
Instantiates DSOIndexNodes for catalogs
- Parameters
-
dsoComp pointer to DeepSkyComponent that handles data rootNode parent RootNode that instantiated this object
Definition at line 62 of file deepskyitem.cpp.
Member Function Documentation
◆ update()
|
virtual |
Call update on all DSOIndexNodes (catalogs)
Implements SkyItem.
Definition at line 112 of file deepskyitem.cpp.
◆ updateDeepSkyNode()
void DeepSkyItem::updateDeepSkyNode | ( | DSOIndexNode * | node, |
bool | drawObject, | ||
MeshIterator * | region, | ||
bool | drawImage = false ) |
update all nodes needed to represent DSO in the given DSOIndexNode In this function we perform some tricks to reduce memory consumption:
- Each TrixelNode has hideCount() function that returns the number of updates, during which this TrixelNode was hidden. Whenever TrixelNode becomes visible this counter is set to 0 and is not being incremented.
- Based on the zoom level we calculate the limit for hideCount. If hideCount() of particular TrixelNode is larger than the limit, we delete all nodes of this TrixelNode.
- If DSOTrixelNode is visible, we iterate over its DeepSkyObjects and DeepSkyNodes. If hideCount of DeepSkyNode is larger than the limit we delete it. If DeepSkyObject is visible but no DeepSkyNode to represent this object is created, we instantiate a new one.
- Parameters
-
node - DSOIndexNode(catalog) that should be updated drawObject - true if objects from this catalog should be drawn, false otherwise region - MeshIterator that should be used to iterate over visible trixels drawImage - true if images for objects should be drawn, false otherwise
Definition at line 130 of file deepskyitem.cpp.
The documentation for this class was generated from the following files:
This file is part of the KDE documentation.
Documentation copyright © 1996-2024 The KDE developers.
Generated on Mon Nov 4 2024 16:38:44 by doxygen 1.12.0 written by Dimitri van Heesch, © 1997-2006
Documentation copyright © 1996-2024 The KDE developers.
Generated on Mon Nov 4 2024 16:38:44 by doxygen 1.12.0 written by Dimitri van Heesch, © 1997-2006
KDE's Doxygen guidelines are available online.