1SoMFEngine(3IV)()                                            SoMFEngine(3IV)()
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NAME

6       SoMFEngine  — multiple-value field containing any number of pointers to
7       engines
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INHERITS FROM

10       SoField > SoMField > SoMFEngine
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SYNOPSIS

13       #include <Inventor/fields/SoMFEngine.h>
14
15          Methods from class SoMFEngine:
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17     static SoType       getClassTypeId()
18     virtual void        getTypeId() const
19     SoEngine *          operator [](int i) const
20     const SoEngine * *  getValues(int start) const
21     int                 find(SoEngine * targetValue, SbBool  addIfNotFound  =
22                              FALSE)
23     void                setValues(int  start, int num, const SoEngine * *new‐
24                              Values)
25     void                set1Value(int index, SoEngine * newValue)
26     SoEngine *          operator =(SoEngine * newValue)
27     void                setValue(SoEngine * newValue)
28     int                 operator ==(const SoMFEngine &f) const
29     int                 operator !=(const SoMFEngine &f) const
30     SoEngine * *        startEditing()
31     void                finishEditing()
32
33          Methods from class SoMField:
34
35     int                 getNum() const
36     void                setNum(int num)
37     virtual void        deleteValues(int start, int num = -1)
38     virtual void        insertSpace(int start, int num)
39     SbBool              set1(int index, const char *valueString)
40     void                get1(int index, SbString &valueString)
41
42          Methods from class SoField:
43
44     void                setIgnored(SbBool ignore)
45     SbBool              isIgnored() const
46     SbBool              isDefault() const
47     virtual SbBool      isOfType(SoType type) const
48     SbBool              set(const char *valueString)
49     void                get(SbString &valueString)
50     void                touch()
51     SbBool              connectFrom(SoField *fromField)
52     SbBool              connectFrom(SoEngineOutput *fromEngine)
53     void                disconnect()
54     SbBool              isConnected() const
55     SbBool              isConnectedFromField() const
56     SbBool              getConnectedField(SoField *&writingField) const
57     SbBool              isConnectedFromEngine() const
58     SbBool              getConnectedEngine(SoEngineOutput     *&engineOutput)
59                              const
60     void                enableConnection(SbBool flag)
61     SbBool              isConnectionEnabled() const
62     int                 getForwardConnections(SoFieldList &list) const
63     SoFieldContainer *  getContainer() const
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65

DESCRIPTION

67       This field maintains a set of pointers to SoEngine instances, correctly
68       maintaining their reference counts.
69
70       SoMFEngines are written to file as one or more engines. When more  than
71       one value is present, all of the values are enclosed in square brackets
72       and separated by commas; for example:
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74          [ ElapsedTime { }, OneShot { duration 2.0 }, USE myCalculator ]
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METHODS

79     static SoType       getClassTypeId()
80     virtual void        getTypeId() const
81          Returns the type for this class  or  a  particular  object  of  this
82          class.
83
84     SoEngine *          operator [](int i) const
85          Returns  the  i'th  value of the field. Indexing past the end of the
86          field (passing in i greater than getNum()) will return garbage.
87
88     const SoEngine * *  getValues(int start) const
89          Returns a pointer into the array of values in the field, starting at
90          index  start.  The values are read-only; see the startEditing()/fin‐
91          ishEditing() methods for a way of modifying values in place.
92
93     int                 find(SoEngine * targetValue, SbBool  addIfNotFound  =
94                              FALSE)
95          Finds  the  given  value  in the array and returns the index of that
96          value in the array. If the value is not found, -1  is  returned.  If
97          addIfNotFound  is  set,  then targetValue is added to the end of the
98          array (but -1 is still returned).
99
100     void                setValues(int start, int num, const SoEngine *  *new‐
101                              Values)
102          Sets  num values starting at index start to the values in newValues.
103          The array will be automatically be made larger to accomodate the new
104          values, if necessary.
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106     void                set1Value(int index, SoEngine * newValue)
107          Sets  the index'th value in the array to newValue. The array will be
108          automatically expanded, if necessary.
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110     SoEngine *          operator =(SoEngine * newValue)
111     void                setValue(SoEngine * newValue)
112          Sets the first value in the array to newValue, and deletes the  sec‐
113          ond and subsequent values.
114
115     int                 operator ==(const SoMFEngine &f) const
116     int                 operator !=(const SoMFEngine &f) const
117          Returns TRUE if all of the values of this field equal (do not equal)
118          those of the given field. If the fields are  different  types  FALSE
119          will  always be returned (even if one field is an SoMFFloat with one
120          value of 1.0 and the other is an SoMFInt with  a  value  of  1,  for
121          example).
122
123     SoEngine * *        startEditing()
124     void                finishEditing()
125          startEditing()  returns a pointer to the internally-maintained array
126          that can be modified. The values in the array may  be  changed,  but
127          values  cannot  be added or removed. It is illegal to call any other
128          editing methods between  startEditing()  and  finishEditing()  (e.g.
129          set1Value(), setValue(), etc).
130
131          Fields,  engines  or sensors connected to this field and sensors are
132          not notified that this field has changed  until  finishEditing()  is
133          called.  Calling finishEditing() always sets the isDefault() flag to
134          FALSE and informs engines and sensors that the field  changed,  even
135          if none of the values actually were changed.
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140                                                             SoMFEngine(3IV)()
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