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Classes
Engine Classes

## 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 | SoHeightMapToNormalMap
| Engine for computing a normal map from a height map. 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 | SoTexture2Convert
| Abstract base class for texture filtering engines. 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 | 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.

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