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92 lines
2.6 KiB
C++
92 lines
2.6 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkTreeOrbitLayoutStrategy.h
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=========================================================================*/
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/*----------------------------------------------------------------------------
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Copyright (c) Sandia Corporation
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See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
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----------------------------------------------------------------------------*/
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/**
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* @class vtkTreeOrbitLayoutStrategy
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* @brief hierarchical orbital layout
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*
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*
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* Assigns points to the nodes of a tree to an orbital layout. Each parent
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* is orbited by its children, recursively.
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*
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* @par Thanks:
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* Thanks to the galaxy for inspiring this layout strategy.
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*/
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#ifndef vtkTreeOrbitLayoutStrategy_h
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#define vtkTreeOrbitLayoutStrategy_h
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#include "vtkGraphLayoutStrategy.h"
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#include "vtkInfovisLayoutModule.h" // For export macro
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class vtkPoints;
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class vtkTree;
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class VTKINFOVISLAYOUT_EXPORT vtkTreeOrbitLayoutStrategy : public vtkGraphLayoutStrategy
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{
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public:
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static vtkTreeOrbitLayoutStrategy* New();
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vtkTypeMacro(vtkTreeOrbitLayoutStrategy, vtkGraphLayoutStrategy);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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/**
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* Perform the orbital layout.
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*/
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void Layout() override;
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//@{
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/**
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* The spacing of orbital levels. Levels near zero give more space
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* to levels near the root, while levels near one (the default)
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* create evenly-spaced levels. Levels above one give more space
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* to levels near the leaves.
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*/
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vtkSetMacro(LogSpacingValue, double);
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vtkGetMacro(LogSpacingValue, double);
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//@}
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//@{
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/**
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* The spacing of leaves. Levels near one evenly space leaves
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* with no gaps between subtrees. Levels near zero creates
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* large gaps between subtrees.
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*/
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vtkSetClampMacro(LeafSpacing, double, 0.0, 1.0);
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vtkGetMacro(LeafSpacing, double);
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//@}
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//@{
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/**
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* This is a magic number right now. Controls the radius
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* of the child layout, all of this should be fixed at
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* some point with a more logical layout. Defaults to .5 :)
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*/
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vtkSetMacro(ChildRadiusFactor, double);
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vtkGetMacro(ChildRadiusFactor, double);
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//@}
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protected:
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vtkTreeOrbitLayoutStrategy();
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~vtkTreeOrbitLayoutStrategy() override;
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void OrbitChildren(vtkTree* t, vtkPoints* p, vtkIdType parent, double radius);
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double LogSpacingValue;
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double LeafSpacing;
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double ChildRadiusFactor;
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private:
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vtkTreeOrbitLayoutStrategy(const vtkTreeOrbitLayoutStrategy&) = delete;
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void operator=(const vtkTreeOrbitLayoutStrategy&) = delete;
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};
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#endif
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