NAME
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.
SYNOPSIS
#include <Inventor/engines/SoBoolOperation.h>
Inherits SoEngine.
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 Member Functions
SoBoolOperation ()
Static Public Member Functions
static void initClass ()
Public Attributes
SoMFBool a
SoMFBool b
SoMFEnum operation
SoEngineOutput output
SoEngineOutput inverse
Protected Member Functions
virtual ~SoBoolOperation (void)
Detailed Description
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.
Member Enumeration Documentation
enum SoBoolOperation::Operation Enumeration of available boolean logic
operators.
Enumerator:
CLEAR Always set SoBoolOperation::output to FALSE, no matter the input
values.
SET Always set SoBoolOperation::output to TRUE, no matter the input
values.
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
Constructor & Destructor Documentation
SoBoolOperation::SoBoolOperation (void) Default constructor.
SoBoolOperation::~SoBoolOperation (void) [protected, virtual] Destructor.
Member Function Documentation
void SoBoolOperation::initClass (void) [static] Sets up initialization for
data common to all instances of this class, like submitting necessary
information to the Coin type system.
Reimplemented from SoEngine.
Member Data Documentation
SoMFBool SoBoolOperation::a First set of boolean input ’signal’ values.
SoMFBool SoBoolOperation::b Second set of boolean input ’signal’ values.
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.
SoEngineOutput SoBoolOperation::output (SoMFBool) The result of each (a[i]
operation[i] b[i]) expression.
SoEngineOutput SoBoolOperation::inverse (SoMFBool) The set of inverse
results.
Author
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