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Public Types | Static Public Member Functions | Public Attributes | Protected Member Functions | Friends
SoObliqueSlice Class Reference

Render a slice of the volume data, with any orientation. More...

#include <VolumeViz/nodes/SoObliqueSlice.h>

Inherits SoShape.

List of all members.

Public Types

enum  Interpolation { NEAREST, LINEAR }
enum  AlphaUse { ALPHA_AS_IS, ALPHA_OPAQUE, ALPHA_BINARY }

Static Public Member Functions

static void initClass (void)

Public Attributes

SoSFPlane plane
SoSFEnum interpolation
SoSFEnum alphaUse
SoSFNode alternateRep

Protected Member Functions

virtual void GLRender (SoGLRenderAction *action)
virtual void rayPick (SoRayPickAction *action)
virtual void generatePrimitives (SoAction *action)
virtual void computeBBox (SoAction *action, SbBox3f &box, SbVec3f &center)
virtual void write (SoWriteAction *action)
virtual SbBool readInstance (SoInput *in, unsigned short flags)

Friends

class SoObliqueSliceP

Detailed Description

Render a slice of the volume data, with any orientation.

Insert a node of this type after an SoVolumeData node in the scene graph to render a single slice from the full volume data set. The slice is specified as a plane with any orientation and position within the volume.

Note that this node will not work with OpenGL drivers too old to contain support for 3D-texturing. All OpenGL drivers of version 1.2 and onwards supports 3D-texturing, as does also older OpenGL drivers with the GL_EXT_texture3D extension. If none of these are available, and this node is still attempted used, a warning message will be output through Coin's SoDebugError::postWarning().

See also:
SoVolumeRender, SoOrthoSlice
SoVolumeTriangleStripSet, SoVolumeIndexedTriangleStripSet,
SoVolumeIndexedFaceSet, SoVolumeFaceSet
Since:
SIM Voleon 2.0

Member Enumeration Documentation

Enumeration of available types of voxel colors interpolation.

Enumerator:
NEAREST 

For "in between" pixels of the screen rasterization, pick the color of the nearest voxel. Will give sharp edges and a distinct blocky look.

LINEAR 

For "in between" pixels of the screen rasterization, interpolate by averaging the colors of several of the nearest voxels. Will give a smoother appearance, but sacrifies some "correctness" for appearance.

Enumerator:
ALPHA_AS_IS 

The alpha channel is rendered 'as-is'.

ALPHA_OPAQUE 

The alpha channel is ignored making the slice opaque.

ALPHA_BINARY 

All alpha values not equal to 0 is threated as value 1.0f.


Member Data Documentation

SoSFPlane SoObliqueSlice::plane

The plane defining the slice.

Default value is an XY plane.

SoSFEnum SoObliqueSlice::interpolation

How to interpolate color values when rendering "in between" voxels. See SoObliqueSlice::Interpolation.

Default value is SoObliqueSlice::LINEAR.

SoSFEnum SoObliqueSlice::alphaUse

How the alpha channel should be threated during rendering. See SoObliqueSlice::AlphaUse.

Default value is SoObliqueSlice::ALPHA_AS_IS

SoSFNode SoObliqueSlice::alternateRep

NOTE: support for this field not yet implemented in SIM Voleon.

Since:
SIM Voleon 2.0

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

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Generated on Wed Jul 18 2012 20:32:32 for SIMVoleon by Doxygen. 1.8.1.1