Engine Classes

Engines are scene based objects that convert between field values of various types or performs computations on them. More...

Classes
class	SoBoolOperation
	The SoBoolOperation engine evaluates expressions of boolean logic.The multivalue fields SoBoolOperation::a and SoBoolOperation::b are combined according to the operations set in SoBoolOperation::operation, with the resulting TRUE or FALSE value set on SoBoolOperation::output. More...
class	SoCalculator
	General purpose calculator for floats and 3D float vectors.The SoCalculator uses the values from the input fields (which are either single floating point values or vectors) as variables in the free-form engine expressions and places the results on the output fields. More...
class	SoComposeMatrix
	The SoComposeMatrix class is used to compose a matrix from miscellaneous transformations. More...
class	SoComposeRotation
	The SoComposeRotation class is used to compose rotations from angle and axis.Simple usage example: More...
class	SoComposeRotationFromTo
	The SoComposeRotationFromTo class is used to compose rotations based on from and to vectors. More...
class	SoComposeVec2f
	The SoComposeVec2f class is used to compose 2D vectors from two floats. More...
class	SoComposeVec3f
	The SoComposeVec3f class is used to compose 3D vectors from floats. More...
class	SoComposeVec4f
	The SoComposeVec4f class is used to compose 4D vectors from four floats. More...
class	SoComputeBoundingBox
	The SoComputeBoundingBox class is used to calculate a bounding box.This engine is simply a wrapper around the SoGetBoundingBoxAction, for a convenient way of having automatic updating of some data in the scene graph which is dependent on the bounding box of some other part of the scene. More...
class	SoConcatenate
	The SoConcatenate class is used to concatenate several inputs into one output.Takes all the values from the 10 input multivalue fields in turn and concatenates them into the multivalue output. More...
class	SoCounter
	The SoCounter class is an integer counter engine.The engine counts from its min value to its max value, adding the value of step each time trigger is touched. More...
class	SoDecomposeMatrix
	The SoDecomposeMatrix class is used to decompose a matrix into simple transformations. More...
class	SoDecomposeRotation
	The SoDecomposeRotation class is used to decompose a rotation into angle and axis. More...
class	SoDecomposeVec2f
	The SoDecomposeVec2f class is used to decompose 2D vectors into two floats. More...
class	SoDecomposeVec3f
	The SoDecomposeVec3f class is used to decompose 3D vectors into three floats. More...
class	SoDecomposeVec4f
	The SoDecomposeVec4f class is used to decompose 4D vectors into four floats. More...
class	SoElapsedTime
	The SoElapsedTime class is a controllable time source engine.The additional functionality provided by this engine versus just connecting to the realTime global field is the ability to control the speed of the time source plus logic to reset, stop and restart it. More...
class	SoEngine
	SoEngine is the base class for Coin engines.Engines enables the application programmers to make complex connections between fields. More...
class	SoEngineOutput
	The SoEngineOutput class is the output slots in SoEngine instances.SoEngineOutput has methods for convenient handling of the connections made from SoEngine objects to SoField objects. More...
class	SoFieldConverter
	The SoFieldConverter class is the abstract base class for field converters.When fields of different types are attempted connected, the Coin library tries to find a field converter class which can be inserted between them, acting as a filter converting values from the master field to values matching the type of the slave field. More...
class	SoGate
	The SoGate class is used to selectively copy values from input to output.This engine will forward values from the SoGate::input field to the SoGate::output field when the SoGate::enable field is TRUE. More...
class	SoInterpolate
	The SoInterpolate class is the base class for all interpolator engines.Interpolators are used to linearly interpolate between two values. More...
class	SoInterpolateFloat
	The SoInterpolateFloat class is used to interpolate two floating point values. More...
class	SoInterpolateRotation
	The SoInterpolateRotation class is used to interpolate between two rotations. More...
class	SoInterpolateVec2f
	The SoInterpolateVec2f class is used to interpolate between pairs of 2D vectors. More...
class	SoInterpolateVec3f
	The SoInterpolateVec3f class is used to interpolate between pairs of 3D vectors. More...
class	SoInterpolateVec4f
	The SoInterpolateVec4f class is used to interpolate between pairs of 4D vectors. More...
class	SoNodeEngine
	SoNodeEngine is the base class for Coin node engines.Node engines have the same functionality as normal engines, except that they inherit SoNode, which makes it possible to insert node engines in the scene graph. More...
class	SoOnOff
	The SoOnOff engine is a simple on/off switch. More...
class	SoOneShot
	The SoOneShot class is a timer that runs for a configurable time and then stops. More...
class	SoEngineOutputData
	The SoEngineOutputData class is a container for a prototype set of outputs.This class is instantiated once for each class of objects which use outputs, and which needs to be able to import and export them. More...
class	SoSelectOne
	The SoSelectOne class is used to select one value from a set of values.The output field will be the index'th value of the input multivalue field. More...
class	SoTimeCounter
	The SoTimeCounter class is an integer counter engine.The SoTimeCounter engine is by default connected to the realTime global field, and does stepwise updates on the SoTimeCounter::output field according to the field settings. More...
class	SoTransformVec3f
	The SoTransformVec3f class transforms 3D vectors by a matrix. More...
class	SoTriggerAny
	The SoTriggerAny class is a fan-in engine for triggers.When any one of the input triggers are "pulsed", any field connected as a slave to the engine output will be notified. More...
class	SoTexture2Convert
	Abstract base class for texture filtering engines. More...
class	SoHeightMapToNormalMap
	Engine for computing a normal map from a height map. More...
class	SoEngineList
	The SoEngineList class is a container for SoEngine objects.As this class inherits SoBaseList, referencing and dereferencing will default be done on the objects at append(), remove(), insert() etc. More...
class	SoEngineOutputList
	The SoEngineOutputList class is a container for SoEngineOutput objects. More...

Detailed Description

Engines are scene based objects that convert between field values of various types or performs computations on them.

The most versatile engine is the SoCalculator engine, which you can write your own mathematical expressions to to get it to do almost anything. The other engines are more custom-tailored for specific purposes.