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The SoBoolOperation engine evaluates expressions of boolean logic. More...
#include <Inventor/engines/SoBoolOperation.h>
Public Types | |
enum | Operation { CLEAR , SET , A , NOT_A , B , NOT_B , A_OR_B , NOT_A_OR_B , A_OR_NOT_B , NOT_A_OR_NOT_B , A_AND_B , NOT_A_AND_B , A_AND_NOT_B , NOT_A_AND_NOT_B , A_EQUALS_B , A_NOT_EQUALS_B } |
Public Attributes | |
SoMFBool | a |
SoMFBool | b |
SoMFEnum | operation |
SoEngineOutput | output |
SoEngineOutput | inverse |
Protected Member Functions | |
~SoBoolOperation () | |
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SoEngine (void) | |
virtual | ~SoEngine () |
virtual SbBool | readInstance (SoInput *in, unsigned short flags) |
virtual void | inputChanged (SoField *which) |
void | writeOutputTypes (SoOutput *out) |
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SoFieldContainer (void) | |
~SoFieldContainer () | |
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SoBase (void) | |
virtual | ~SoBase () |
SbBool | hasMultipleWriteRefs (void) const |
SbBool | writeHeader (SoOutput *out, SbBool isgroup, SbBool isengine) const |
void | writeFooter (SoOutput *out) const |
virtual const char * | getFileFormatName (void) const |
Static Protected Member Functions | |
static const SoFieldData ** | getInputDataPtr (void) |
static const SoEngineOutputData ** | getOutputDataPtr (void) |
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static const SoFieldData ** | getInputDataPtr (void) |
static const SoEngineOutputData ** | getOutputDataPtr (void) |
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static uint32_t | getCurrentWriteCounter (void) |
static void | staticDataLock (void) |
static void | staticDataUnlock (void) |
Additional Inherited Members | |
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enum | BaseFlags { IS_ENGINE = 0x01 , IS_GROUP = 0x02 } |
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SbBool | isBuiltIn |
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.
Enumeration of available boolean logic operators.
Enumerator | |
---|---|
CLEAR | Always set SoBoolOperation::output to |
SET | Always set SoBoolOperation::output to |
A | Output result = SoBoolOperation::a |
NOT_A | Output result = ! SoBoolOperation::a |
B | Output result = SoBoolOperation::b |
NOT_B | Output result = ! SoBoolOperation::b |
A_OR_B | r = a || b |
NOT_A_OR_B | r = !a || b |
A_OR_NOT_B | r = a || !b |
NOT_A_OR_NOT_B | r = !a || !b |
A_AND_B | r = a && b |
NOT_A_AND_B | r = !a && b |
A_AND_NOT_B | r = a && !b |
NOT_A_AND_NOT_B | r = !a && !b |
A_EQUALS_B | r = a==b |
A_NOT_EQUALS_B | r = ! a==b |
SoBoolOperation::SoBoolOperation | ( | void | ) |
Default constructor.
References A, a, A_AND_B, A_AND_NOT_B, A_EQUALS_B, A_NOT_EQUALS_B, A_OR_B, A_OR_NOT_B, B, b, CLEAR, inverse, NOT_A, NOT_A_AND_B, NOT_A_AND_NOT_B, NOT_A_OR_B, NOT_A_OR_NOT_B, NOT_B, operation, output, and SET.
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protected |
Destructor.
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:
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.
Implements SoBase.
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virtual |
Returns a pointer to the class-wide field data storage object for this instance. If no fields are present, returns NULL
.
Reimplemented from SoFieldContainer.
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virtual |
This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.
Implements SoEngine.
SoMFBool SoBoolOperation::a |
First set of boolean input "signal" values.
Referenced by SoBoolOperation().
SoMFBool SoBoolOperation::b |
Second set of boolean input "signal" values.
Referenced by SoBoolOperation().
SoMFEnum SoBoolOperation::operation |
Set of boolean logic expressions. Each of these are used to combine SoBoolOperation::a with SoBoolOperation::b (for each index value from 0 to the last value) to produce the results on the SoBoolOperation::output field.
Referenced by SoBoolOperation().
SoEngineOutput SoBoolOperation::output |
(SoMFBool) The result of each (a[i] operation[i] b[i]) expression.
Referenced by SoBoolOperation().
SoEngineOutput SoBoolOperation::inverse |
(SoMFBool) The set of inverse results.
Referenced by SoBoolOperation().
Copyright © 1998-2007 by Systems in Motion AS. All rights reserved.
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