incremental force-directed layout.
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#include <vtkIncrementalForceLayout.h>
Inherits vtkObject.
incremental force-directed layout.
Performs an incremental force-directed layout of a graph. Set the graph then iteratively execute UpdatePositions() to update the vertex positions. Note that this directly modifies the vertex locations in the graph.
This layout is modeled after D3's force layout described at https://github.com/mbostock/d3/wiki/Force-Layout
- Tests:
- vtkIncrementalForceLayout (Tests)
Definition at line 41 of file vtkIncrementalForceLayout.h.
vtkIncrementalForceLayout::vtkIncrementalForceLayout |
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vtkIncrementalForceLayout::~vtkIncrementalForceLayout |
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static int vtkIncrementalForceLayout::IsTypeOf |
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const char * |
type | ) |
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virtual int vtkIncrementalForceLayout::IsA |
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const char * |
type | ) |
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virtual vtkObjectBase* vtkIncrementalForceLayout::NewInstanceInternal |
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virtual void vtkIncrementalForceLayout::PrintSelf |
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ostream & |
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vtkIndent |
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virtual void vtkIncrementalForceLayout::SetGraph |
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vtkGraph * |
g | ) |
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Set the graph to be positioned.
virtual vtkGraph* vtkIncrementalForceLayout::GetGraph |
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Set the graph to be positioned.
virtual void vtkIncrementalForceLayout::SetFixed |
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vtkIdType |
fixed | ) |
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Set the id of the vertex that will not move during the simulation. Set to -1 to allow all the vertices to move.
virtual vtkIdType vtkIncrementalForceLayout::GetFixed |
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Set the id of the vertex that will not move during the simulation. Set to -1 to allow all the vertices to move.
virtual void vtkIncrementalForceLayout::SetAlpha |
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float |
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Set the level of activity in the simulation. Default is 0.1.
virtual float vtkIncrementalForceLayout::GetAlpha |
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Set the level of activity in the simulation. Default is 0.1.
virtual void vtkIncrementalForceLayout::SetTheta |
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float |
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Set the Barnes-Hut threshold for the simulation. Higher values will speed the simulation at the expense of some accuracy. Default is 0.8.
virtual float vtkIncrementalForceLayout::GetTheta |
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Set the Barnes-Hut threshold for the simulation. Higher values will speed the simulation at the expense of some accuracy. Default is 0.8.
virtual void vtkIncrementalForceLayout::SetCharge |
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float |
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Set the charge of each vertex. Higher negative values will repel vertices from each other more strongly. Default is -30.
virtual float vtkIncrementalForceLayout::GetCharge |
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Set the charge of each vertex. Higher negative values will repel vertices from each other more strongly. Default is -30.
virtual void vtkIncrementalForceLayout::SetStrength |
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float |
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Set the rigitity of links in the simulation. Default is 2.
virtual float vtkIncrementalForceLayout::GetStrength |
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Set the rigitity of links in the simulation. Default is 2.
virtual void vtkIncrementalForceLayout::SetDistance |
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float |
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Set the resting distance of each link in scene units, which is equal to pixels when there is no scene scaling. Default is 20.
virtual float vtkIncrementalForceLayout::GetDistance |
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Set the resting distance of each link in scene units, which is equal to pixels when there is no scene scaling. Default is 20.
virtual void vtkIncrementalForceLayout::SetGravity |
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float |
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Set the amount of gravitational pull toward the gravity point. Default is 0.01.
virtual float vtkIncrementalForceLayout::GetGravity |
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Set the amount of gravitational pull toward the gravity point. Default is 0.01.
virtual void vtkIncrementalForceLayout::SetFriction |
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float |
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Set the multiplier for scaling down velocity in the simulation, where values closer to 1 are more frictionless. Default is 0.95.
virtual float vtkIncrementalForceLayout::GetFriction |
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Set the multiplier for scaling down velocity in the simulation, where values closer to 1 are more frictionless. Default is 0.95.
virtual void vtkIncrementalForceLayout::SetGravityPoint |
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const vtkVector2f & |
point | ) |
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Set the gravity point where all vertices will migrate. Generally this should be set to the location in the center of the scene. Default location is (200, 200).
Definition at line 113 of file vtkIncrementalForceLayout.h.
virtual vtkVector2f vtkIncrementalForceLayout::GetGravityPoint |
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Set the gravity point where all vertices will migrate. Generally this should be set to the location in the center of the scene. Default location is (200, 200).
Definition at line 115 of file vtkIncrementalForceLayout.h.
void vtkIncrementalForceLayout::UpdatePositions |
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Perform one iteration of the force-directed layout.
vtkGraph* vtkIncrementalForceLayout::Graph |
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Implementation* vtkIncrementalForceLayout::Impl |
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vtkIdType vtkIncrementalForceLayout::Fixed |
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vtkVector2f vtkIncrementalForceLayout::GravityPoint |
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float vtkIncrementalForceLayout::Alpha |
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float vtkIncrementalForceLayout::Theta |
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float vtkIncrementalForceLayout::Charge |
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float vtkIncrementalForceLayout::Strength |
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float vtkIncrementalForceLayout::Distance |
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float vtkIncrementalForceLayout::Gravity |
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float vtkIncrementalForceLayout::Friction |
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The documentation for this class was generated from the following file: