vtkQuadricLODActor Class Reference

a specific level-of-detail strategy using the quadric clustering decimation algorithm More...

#include <vtkQuadricLODActor.h>

Detailed Description

a specific level-of-detail strategy using the quadric clustering decimation algorithm

vtkQuadricLODActor implements a specific strategy for level-of-detail using the vtkQuadricClustering decimation algorithm. It supports only two levels of detail: full resolution and a decimated version. The decimated LOD is generated using a tuned strategy to produce output consistent with the requested interactive frame rate (i.e., the vtkRenderWindowInteractor's DesiredUpdateRate). It also makes use of display lists for performance, and adjusts the vtkQuadricClustering algorithm to take into account the dimensionality of the data (e.g., 2D, x-y surfaces may be binned into n x n x 1 to reduce extra polygons in the z-direction). Finally, the filter may optionally be set in "Static" mode (this works with the vtkMapper::SetStatic() method). `Enabling Static results in a one time execution of the Mapper's pipeline. After that, the pipeline no longer updated (unless manually forced to do so).

Warning

By default the algorithm is set up to pre-compute the LODs. That is, on the first render (whether a full resolution render or interactive render) the LOD is computed. This behavior can be changed so that the LOD construction is deferred until the first interactive render. Either way, when the LOD is constructed, the user may notice a short pause.

This class can be used as a direct replacement for vtkActor. It may also be used as a replacement for vtkFollower's (the ability to track a camera is provided).

See also

vtkLODActor vtkQuadricClustering

Tests:

vtkQuadricLODActor (Tests) */

For export macro

class vtkQuadricClustering; class vtkPolyDataMapper; class vtkCamera; class vtkPolyData;

class VTKRENDERINGLOD_EXPORT vtkQuadricLODActor : public vtkActor { public: /** Creates a vtkQuadricLODActor.

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

• Rendering/LOD/vtkQuadricLODActor.h