Open Inventor Release 2024.2.0
 
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SoTimeCounter Class Reference

Timed integer counter. More...

#include <Inventor/engines/SoTimeCounter.h>

+ Inheritance diagram for SoTimeCounter:

Public Member Functions

virtual SoType getTypeId () const
 Returns the type identifier for this specific instance.
 
 SoTimeCounter ()
 Constructor.
 
- Public Member Functions inherited from SoEngine
virtual int getOutputs (SoEngineOutputList &list) const
 Returns a list of outputs in this engine.
 
SoEngineOutputgetOutput (const SbName &outputName) const
 Returns a reference to the engine output with the given name.
 
SbBool getOutputName (const SoEngineOutput *output, SbName &outputName) const
 Returns (in outputName) the name of the engine output (output).
 
SoEnginecopy () const
 Creates and returns an exact copy of the engine.
 
- Public Member Functions inherited from SoFieldContainer
void setToDefaults ()
 Sets all fields in this object to their default values.
 
SbBool hasDefaultValues () const
 Returns TRUE if all of the object's fields have their default values.
 
SbBool fieldsAreEqual (const SoFieldContainer *fc) const
 Returns TRUE if this object's fields are exactly equal to fc's fields.
 
void copyFieldValues (const SoFieldContainer *fc, SbBool copyConnections=FALSE)
 Copies the contents of fc's fields into this object's fields.
 
SoNONUNICODE SbBool set (const char *fieldDataString)
 Sets one or more fields in this object to the values specified in the given string, which should be a string in the Open Inventor file format.
 
SbBool set (const SbString &fieldDataString)
 Sets one or more fields in this object to the values specified in the given string, which should be a string in the Open Inventor file format.
 
void get (SbString &fieldDataString)
 Returns the values of the fields of this object in the Open Inventor ASCII file format in the given string.
 
virtual int getFields (SoFieldList &list) const
 Appends references to all of this object's fields to resultList, and returns the number of fields appended.
 
virtual int getAllFields (SoFieldList &list) const
 Returns a list of fields, including the eventIn's and eventOut's.
 
virtual SoFieldgetField (const SbName &fieldName) const
 Returns a the field of this object whose name is fieldName.
 
virtual SoFieldgetEventIn (const SbName &fieldName) const
 Returns a the eventIn with the given name.
 
virtual SoFieldgetEventOut (const SbName &fieldName) const
 Returns the eventOut with the given name.
 
SbBool getFieldName (const SoField *field, SbName &fieldName) const
 Returns the name of the given field in the fieldName argument.
 
SbBool enableNotify (SbBool flag)
 Notification at this Field Container is enabled (if flag == TRUE) or disabled (if flag == FALSE).
 
SbBool isNotifyEnabled () const
 Notification is the process of telling interested objects that this object has changed.
 
virtual void setUserData (void *data)
 Sets application data.
 
void * getUserData (void) const
 Gets user application data.
 
- Public Member Functions inherited from SoBase
virtual void touch ()
 Marks an instance as modified, simulating a change to it.
 
virtual SbName getName () const
 Returns the name of an instance.
 
virtual void setName (const SbName &name)
 Sets the name of an instance.
 
void setSynchronizable (const bool b)
 Sets this to be a ScaleViz synchronizable object.
 
bool isSynchronizable () const
 Gets the ScaleViz synchronizable state of this object.
 
- Public Member Functions inherited from SoRefCounter
void ref () const
 Adds a reference to an instance.
 
void unref () const
 Removes a reference from an instance.
 
void unrefNoDelete () const
 unrefNoDelete() should be called when it is desired to decrement the reference count, but not delete the instance if this brings the reference count to zero.
 
int getRefCount () const
 Returns current reference count.
 
void lock () const
 lock this instance.
 
void unlock () const
 unlock this instance.
 
- Public Member Functions inherited from SoTypedObject
SbBool isOfType (const SoType &type) const
 Returns TRUE if this object is of the type specified in type or is derived from that type.
 
template<typename TypedObjectClass >
SbBool isOfType () const
 Returns TRUE if this object is of the type of class TypedObjectClass or is derived from that class.
 

Static Public Member Functions

static SoType getClassTypeId ()
 Returns the type identifier for this class.
 
- Static Public Member Functions inherited from SoEngine
static SoType getClassTypeId ()
 Returns the type identifier for the SoEngine class.
 
static SoEnginegetByName (const SbName &name)
 Looks up engine(s) by name.
 
static int getByName (const SbName &name, SoEngineList &list)
 Looks up engine(s) by name.
 
- Static Public Member Functions inherited from SoFieldContainer
static SoType getClassTypeId ()
 Returns the type of this class.
 
- Static Public Member Functions inherited from SoBase
static SoType getClassTypeId ()
 Returns type identifier for this class.
 
- Static Public Member Functions inherited from SoTypedObject
static SoType getClassTypeId ()
 Returns the type identifier for this class.
 

Public Attributes

SoSFShort min
 Minimum value for the counter.
 
SoSFShort max
 Maximum value for the counter.
 
SoSFShort step
 Counter step value.
 
SoSFBool on
 Counter pauses if this is set to FALSE.
 
SoSFFloat frequency
 Number of min-to-max cycles per second.
 
SoMFFloat duty
 Duty cycle values.
 
SoSFTime timeIn
 Running time.
 
SoSFTrigger syncIn
 Restart at the beginning of the cycle.
 
SoSFShort reset
 Reset the counter to the specified value.
 
SoEngineOutput output
 ( SoSFShort ) Counts min-to-max, in step increments.
 
SoEngineOutput syncOut
 ( SoSFTrigger ) Triggers at cycle start.
 

Detailed Description

Timed integer counter.

This engine is a counter that outputs numbers, starting at a minimum value, increasing by a step value, and ending with a number that does not exceed the maximum value. When the maximum number is reached, it starts counting from the beginning again.

The difference between this engine and the SoCounter engine, is that this engine also has a timeIn input, which allows the counting cycles to be timed. This engine counts automatically over time; it does not need to be triggered to go to the next step. By default, the timeIn input is connected to the realTime global field. It can, however, be connected to any time source.

The frequency input field controls how many min-to-max cycles are performed per second. For example, a frequency value of 0.5 means that it will take 2 seconds to complete a single min-to-max cycle.

The steps in the count cycle do not necessarily all have the same duration. Using the duty input field, you can arbitrarily split the time period of the count cycle between the steps. For example, if there are 5 steps in the cycle, a duty input of (1., 2., 2., 2., 1.) will make the second, third, and fourth steps take twice as long as the first and last steps.

At any time the counter can be reset to a specific value. If you set the reset input field to a value, the engine will continue counting from there. Note that the counter will always output numbers based on the min, max and step values, and setting the reset value does not affect the those input fields. If the reset value is not a legal counter value, the counter will still behave as though it is:

  • If reset is greater than max, the counter is set to max.
  • If reset is less than min, the counter is set to min.
  • If reset is between step values, the counter is set to the lower step.

Each time a counting cycle is started, the syncOut output is triggered. This output can be used to synchronize some other event with the counting cycle. Other events can also synchronize the counter by triggering the syncIn input.

You can pause the engine, by setting the on input to FALSE, and it will stop updating the output field. When you turn off the pause, by setting on to TRUE, it will start counting again from where it left off.

FILE FORMAT/DEFAULT

    TimeCounter {
    min 0
    max 1
    step 1
    on TRUE
    frequency 1
    duty 1
    timeIn <current time>
    syncIn
    reset 0
    }

SEE ALSO

SoCounter, SoElapsedTime, SoEngineOutput

Definition at line 133 of file SoTimeCounter.h.

Constructor & Destructor Documentation

◆ SoTimeCounter()

SoTimeCounter::SoTimeCounter ( )

Constructor.

Member Function Documentation

◆ getClassTypeId()

static SoType SoTimeCounter::getClassTypeId ( )
static

Returns the type identifier for this class.


◆ getTypeId()

virtual SoType SoTimeCounter::getTypeId ( ) const
virtual

Returns the type identifier for this specific instance.

Implements SoTypedObject.

Member Data Documentation

◆ duty

SoMFFloat SoTimeCounter::duty

Duty cycle values.

Definition at line 161 of file SoTimeCounter.h.

◆ frequency

SoSFFloat SoTimeCounter::frequency

Number of min-to-max cycles per second.

Definition at line 157 of file SoTimeCounter.h.

◆ max

SoSFShort SoTimeCounter::max

Maximum value for the counter.

Definition at line 145 of file SoTimeCounter.h.

◆ min

SoSFShort SoTimeCounter::min

Minimum value for the counter.

Definition at line 141 of file SoTimeCounter.h.

◆ on

SoSFBool SoTimeCounter::on

Counter pauses if this is set to FALSE.

Definition at line 153 of file SoTimeCounter.h.

◆ output

SoEngineOutput SoTimeCounter::output

( SoSFShort ) Counts min-to-max, in step increments.

Definition at line 178 of file SoTimeCounter.h.

◆ reset

SoSFShort SoTimeCounter::reset

Reset the counter to the specified value.

Definition at line 173 of file SoTimeCounter.h.

◆ step

SoSFShort SoTimeCounter::step

Counter step value.

Definition at line 149 of file SoTimeCounter.h.

◆ syncIn

SoSFTrigger SoTimeCounter::syncIn

Restart at the beginning of the cycle.

Definition at line 169 of file SoTimeCounter.h.

◆ syncOut

SoEngineOutput SoTimeCounter::syncOut

( SoSFTrigger ) Triggers at cycle start.

Definition at line 182 of file SoTimeCounter.h.

◆ timeIn

SoSFTime SoTimeCounter::timeIn

Running time.

Definition at line 165 of file SoTimeCounter.h.


The documentation for this class was generated from the following file: