ogdf::ForceLayoutModule Class Reference

Interface of general layout algorithms. More...

#include <ogdf/energybased/ForceLayoutModule.h>

Inheritance diagram for ogdf::ForceLayoutModule:

Public Member Functions
	ForceLayoutModule ()
	Initializes a force layout module.
virtual	~ForceLayoutModule ()
virtual void	call (GraphAttributes &GA) override=0
	Computes a layout of graph GA.
virtual void	call (MultilevelGraph &MLG)
	Computes a layout of graph MLG.
Public Member Functions inherited from ogdf::LayoutModule
	LayoutModule ()
	Initializes a layout module.
virtual	~LayoutModule ()
void	operator() (GraphAttributes &GA)
	Computes a layout of graph GA.

Private Attributes
int	m_currentLevel

Detailed Description

Interface of general layout algorithms.

Definition at line 45 of file ForceLayoutModule.h.

Constructor & Destructor Documentation

ForceLayoutModule()

ogdf::ForceLayoutModule::ForceLayoutModule ( )

inline

Initializes a force layout module.

Definition at line 51 of file ForceLayoutModule.h.

~ForceLayoutModule()

virtual ogdf::ForceLayoutModule::~ForceLayoutModule ( )

inlinevirtual

Definition at line 53 of file ForceLayoutModule.h.

Member Function Documentation

call() [1/2]

virtual void ogdf::ForceLayoutModule::call ( GraphAttributes &  GA )

overridepure virtual

Computes a layout of graph GA.

This method is the actual algorithm call and must be implemented by derived classes.

Parameters

GA	is the input graph and will also be assigned the layout information.

Implements ogdf::LayoutModule.

Implemented in ogdf::SpringEmbedderFRExact.

call() [2/2]

virtual void ogdf::ForceLayoutModule::call ( MultilevelGraph &  MLG )

inlinevirtual

Computes a layout of graph MLG.

This method can be implemented optionally to allow a LayoutModule to modify the Graph. This allows some Layout Algorithms to save Memory, compared to a normal call(GA) DO NOT implement this if you are not sure whether this would save you Memory! This Method only helps if the Graph is already in the MultiLevelGraph Format (or can be converted without creating a copy) AND the Layout would need a copy otherwise. All incremental Layouts (especially energy based) CAN be called by ModularMultilevelMixer. The standard implementation converts the MLG to GA and uses call(GA).

If implemented, the following Implementation of call(GA) is advised to ensure consistent behaviour of the two call Methods: void YourLayout::call(GraphAttributes &GA) { MultilevelGraph MLG(GA); call(MLG); MLG.exportAttributes(GA); }

Parameters

MLG	is the input graph and will also be assigned the layout information.

Definition at line 79 of file ForceLayoutModule.h.

Member Data Documentation

m_currentLevel

int ogdf::ForceLayoutModule::m_currentLevel

private

Definition at line 47 of file ForceLayoutModule.h.

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

• include/ogdf/energybased/ForceLayoutModule.h