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SIMVoleon
2.1.0
Coin3D volume rendering library
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Render a slice of the volume data, with any orientation. More...
#include <VolumeViz/nodes/SoObliqueSlice.h>
Public Types | |
enum | AlphaUse { ALPHA_AS_IS , ALPHA_OPAQUE , ALPHA_BINARY } |
enum | Interpolation { NEAREST , LINEAR } |
Static Public Member Functions | |
static void | initClass (void) |
Public Attributes | |
SoSFEnum | alphaUse |
SoSFNode | alternateRep |
SoSFEnum | interpolation |
SoSFPlane | plane |
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 an orientation and position within the volume.
Here is a simple example, in the form of an iv-file:
#Inventor V2.1 ascii SoVolumeData { fileName "ENGINE.VOL" } Separator { SoTransferFunction { } DEF clipper ClipPlaneManip { } SoVolumeRender { } } Separator { SoTransferFunction { predefColorMap GLOW } SoObliqueSlice { interpolation LINEAR alphaUse ALPHA_AS_IS plane = USE clipper . plane } }
Please note that SoObliqueSlice will not work with older OpenGL drivers as they usually lack 3D-texture support. OpenGL drivers of version 1.2 and onwards supports 3D-texturing, as does older OpenGL drivers with the GL_EXT_texture3D
extension. If none of these are available, a warning message will be printed using Coin's SoDebugError::postWarning().
Enumeration of available types of voxel color interpolation.
SoSFEnum SoObliqueSlice::alphaUse |
How the alpha channel should be treated 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.
SoSFEnum SoObliqueSlice::interpolation |
How to interpolate color values when rendering "in between" voxels. See SoObliqueSlice::Interpolation.
Default value is SoObliqueSlice::LINEAR.
SoSFPlane SoObliqueSlice::plane |
The plane defining the slice.
Default value is an XY plane.