SoScale - Online Linux Manual PageSection : 3
Updated : Mon Jan 25 2021
Source : Version 3.1.3
Note : Coin
NAMESoScale − The SoScale class is a node type for scaling scene graph geometry.
SYNOPSIS
#include <Inventor/nodes/SoScale.h> Inherits SoTransformation.
Public Member Functionsvirtual SoType getTypeId (void) const
SoScale (void)
virtual void doAction (SoAction *action)
virtual void callback (SoCallbackAction *action)
virtual void GLRender (SoGLRenderAction *action)
virtual void getBoundingBox (SoGetBoundingBoxAction *action)
virtual void getMatrix (SoGetMatrixAction *action)
virtual void pick (SoPickAction *action)
virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)
Static Public Member Functionsstatic SoType getClassTypeId (void)
static void initClass (void)
Public AttributesSoSFVec3f scaleFactor
Protected Member Functionsvirtual const SoFieldData * getFieldData (void) const
virtual ~SoScale ()
Static Protected Member Functionsstatic const SoFieldData ** getFieldDataPtr (void)
Additional Inherited Members
Detailed DescriptionThe SoScale class is a node type for scaling scene graph geometry. Use nodes of this type to apply scaling operations during scenegraph traversals for e.g. rendering. Scale values are specified in a triple-value vector, with one scale factor for each of the 3 principal axes. FILE FORMAT/DEFAULTS: Scale {
scaleFactor 1 1 1
}
Constructor & Destructor Documentation
SoScale::SoScale (void)Constructor.
SoScale::~SoScale () [protected], [virtual]Destructor.
Member Function Documentation
SoType SoScale::getTypeId (void) const [virtual]Returns the type identification of an object derived from a class inheriting SoBase. This is used for run-time type checking and 'downward' casting. Usage example: void foo(SoNode * node)
{
if (node->getTypeId() == SoFile::getClassTypeId()) {
SoFile * filenode = (SoFile *)node; // safe downward cast, knows the type
}
}For application programmers wanting to extend the library with new nodes, engines, nodekits, draggers or others: this method needs to be overridden in all subclasses. This is typically done as part of setting up the full type system for extension classes, which is usually accomplished by using the pre-defined macros available through for instance Inventor/nodes/SoSubNode.h (SO_NODE_INIT_CLASS and SO_NODE_CONSTRUCTOR for node classes), Inventor/engines/SoSubEngine.h (for engine classes) and so on. For more information on writing Coin extensions, see the class documentation of the toplevel superclasses for the various class groups. Reimplemented from SoTransformation.
const SoFieldData * SoScale::getFieldData (void) const [protected], [virtual]Returns a pointer to the class-wide field data storage object for this instance. If no fields are present, returns NULL. Reimplemented from SoTransformation.
void SoScale::doAction (SoAction * action) [virtual]This function performs the typical operation of a node for any action. Reimplemented from SoNode.
void SoScale::callback (SoCallbackAction * action) [virtual]Action method for SoCallbackAction. Simply updates the state according to how the node behaves for the render action, so the application programmer can use the SoCallbackAction for extracting information about the scene graph. Reimplemented from SoNode.
void SoScale::GLRender (SoGLRenderAction * action) [virtual]Action method for the SoGLRenderAction. This is called during rendering traversals. Nodes influencing the rendering state in any way or who wants to throw geometry primitives at OpenGL overrides this method. Reimplemented from SoNode.
void SoScale::getBoundingBox (SoGetBoundingBoxAction * action) [virtual]Action method for the SoGetBoundingBoxAction. Calculates bounding box and center coordinates for node and modifies the values of the action to encompass the bounding box for this node and to shift the center point for the scene more towards the one for this node. Nodes influencing how geometry nodes calculates their bounding box also overrides this method to change the relevant state variables. Reimplemented from SoNode.
void SoScale::getMatrix (SoGetMatrixAction * action) [virtual]Action method for SoGetMatrixAction. Updates action by accumulating with the transformation matrix of this node (if any). Reimplemented from SoNode.
void SoScale::pick (SoPickAction * action) [virtual]Action method for SoPickAction. Does common processing for SoPickAction action instances. Reimplemented from SoNode.
void SoScale::getPrimitiveCount (SoGetPrimitiveCountAction * action) [virtual]Action method for the SoGetPrimitiveCountAction. Calculates the number of triangle, line segment and point primitives for the node and adds these to the counters of the action. Nodes influencing how geometry nodes calculates their primitive count also overrides this method to change the relevant state variables. Reimplemented from SoNode.
Member Data Documentation
SoSFVec3f SoScale::scaleFactorSpecifies scaling along the 3 axes. To get a uniform scale applied to the affected shapes, set the scaleFactor field to a vector with the same value for all components. A common error when doing non-uniform scaling in a single direction is to set the value for the other two components of the scaleFactor vector to 0. This is obviously wrong, they should be set to 1 to not scale the shape(s) in the other two directions. Be careful with setting scaleFactor component values to 0 or to negative values. Most shapes should handle those cases somehow, but the results are undefined unless otherwise specified. The default value of this vector field is [1.0, 1.0, 1.0].
AuthorGenerated automatically by Doxygen for Coin from the source code. 0
Johanes Gumabo
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