Provided by: libcoin80-doc_3.1.4~abc9f50-4ubuntu2_all 
NAME
SoUnits -
The SoUnits class is a node for setting unit types.
Even though Coin doesn't care what units you are using in your scene graph per se, there's an advantage
to using SoUnits nodes: you have a way to split your scene graph into different 'conceptual' parts.
SYNOPSIS
#include <Inventor/nodes/SoUnits.h>
Inherits SoTransformation.
Public Types
enum Units { METERS, CENTIMETERS, MILLIMETERS, MICROMETERS, MICRONS, NANOMETERS, ANGSTROMS, KILOMETERS,
FEET, INCHES, POINTS, YARDS, MILES, NAUTICAL_MILES }
Public Member Functions
virtual SoType getTypeId (void) const
Returns the type identification of an object derived from a class inheriting SoBase. This is used for
run-time type checking and 'downward' casting.
SoUnits (void)
virtual void doAction (SoAction *action)
virtual void callback (SoCallbackAction *action)
virtual void getBoundingBox (SoGetBoundingBoxAction *action)
virtual void getMatrix (SoGetMatrixAction *action)
virtual void GLRender (SoGLRenderAction *action)
virtual void pick (SoPickAction *action)
virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)
Static Public Member Functions
static SoType getClassTypeId (void)
static void initClass (void)
Public Attributes
SoSFEnum units
Protected Member Functions
virtual const SoFieldData * getFieldData (void) const
virtual ~SoUnits ()
Static Protected Member Functions
static const SoFieldData ** getFieldDataPtr (void)
Additional Inherited Members
Detailed Description
The SoUnits class is a node for setting unit types.
Even though Coin doesn't care what units you are using in your scene graph per se, there's an advantage
to using SoUnits nodes: you have a way to split your scene graph into different 'conceptual' parts.
When encountering SoUnit nodes, the traversal actions methods makes sure the following geometry is scaled
accordingly.
FILE FORMAT/DEFAULTS:
Units {
units METERS
}
Member Enumeration Documentation
enum SoUnits::Units
Enumerates the available unit settings.
Constructor & Destructor Documentation
SoUnits::SoUnits (void)
Constructor.
SoUnits::~SoUnits () [protected], [virtual]
Destructor.
Member Function Documentation
SoType SoUnits::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 * SoUnits::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 SoUnits::doAction (SoAction *action) [virtual]
This function performs the typical operation of a node for any action.
Reimplemented from SoNode.
void SoUnits::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 SoUnits::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 SoUnits::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 SoUnits::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 SoUnits::pick (SoPickAction *action) [virtual]
Action method for SoPickAction.
Does common processing for SoPickAction action instances.
Reimplemented from SoNode.
void SoUnits::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
SoSFEnum SoUnits::units
The units which will be used for nodes following this node in the traversal (until the next SoUnit node,
if any). Default value of the field is SoUnits::METERS.
Author
Generated automatically by Doxygen for Coin from the source code.