SoTransformProjection Class Reference
[Properties]
Scale/recenter projection node
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#include <Inventor/nodes/SoTransformProjection.h>
Public Member Functions | |
| virtual SoType | getTypeId () const |
| SoTransformProjection () | |
Static Public Member Functions | |
| static SoType | getClassTypeId () |
Public Attributes | |
| SoSFFloat | scaleFactor |
| SoSFVec3f | centerPosition |
Detailed Description
Scale/recenter projection node
This property node is a specific SoProjection which applies a scale and recenter to a geometry.
The computation is done on the CPU before the transfer to OpenGL. The main purpose of this feature is to transform the vertex coordinates before sending them to OpenGL in order to avoid single precision issues, especially with the depth buffer.
Essentially this is a convenience node that automatically creates an SbTransformProjection and calls the setProjection() method for you.
The result of a bounding box action is the coordinates of the bounding box after the projection because we need this version of the bounding box for rendering/clipping.
See SoProjection for important limitations of projection nodes.
FILE FORMAT/DEFAULT
- TransformProjection {
| parameters | "" |
| matrix | identity |
| isOn | TRUE |
| floatParameters | 1 |
| projTypeId | 0 |
| scaleFactor | 1.0 |
| centerPosition | 0.0 0.0 0.0 |
SEE ALSO
SbTransformProjection, SoProjection, SoGeoProjection
Constructor & Destructor Documentation
| SoTransformProjection::SoTransformProjection | ( | ) |
Constructor.
Member Function Documentation
| static SoType SoTransformProjection::getClassTypeId | ( | ) | [static] |
Returns the type identifier for this class.
Reimplemented from SoProjection.
| virtual SoType SoTransformProjection::getTypeId | ( | ) | const [virtual] |
Returns the type identifier for this specific instance.
Reimplemented from SoProjection.
Member Data Documentation
Translation applied to the geometry.
Note: This value is subtracted from each coordinate.
Scale factor applied to the geometry.
Note: Each coordinate is multiplied by this value.
The documentation for this class was generated from the following file:
- Inventor/nodes/SoTransformProjection.h