NAME

       SoMFVec2f — multiple-value field containing any number of two-dimensional vectors

INHERITS FROM

       SoField > SoMField > SoMFVec2f

SYNOPSIS

       #include <Inventor/fields/SoMFVec2f.h>

          Methods from class SoMFVec2f:

     void                setValues(int start, int num, const float xy[][2])
     void                set1Value(int index, float x, float y)
     void                set1Value(int index, const float xy[2])
     void                setValue(float x, float y)
     void                setValue(const float xy[2])
     static SoType       getClassTypeId()
     virtual void        getTypeId() const
     const SbVec2f &     operator [](int i) const
     const SbVec2f *     getValues(int start) const
     int                 find(const SbVec2f & targetValue, SbBool addIfNotFound = FALSE)
     void                setValues(int start, int num, const SbVec2f *newValues)
     void                set1Value(int index, const SbVec2f & newValue)
     const SbVec2f &     operator =(const SbVec2f & newValue)
     void                setValue(const SbVec2f & newValue)
     int                 operator ==(const SoMFVec2f &f) const
     int                 operator !=(const SoMFVec2f &f) const
     SbVec2f *           startEditing()
     void                finishEditing()

          Methods from class SoMField:

     int                 getNum() const
     void                setNum(int num)
     virtual void        deleteValues(int start, int num = -1)
     virtual void        insertSpace(int start, int num)
     SbBool              set1(int index, const char *valueString)
     void                get1(int index, SbString &valueString)

          Methods from class SoField:

     void                setIgnored(SbBool ignore)
     SbBool              isIgnored() const
     SbBool              isDefault() const
     virtual SbBool      isOfType(SoType type) const
     SbBool              set(const char *valueString)
     void                get(SbString &valueString)
     void                touch()
     SbBool              connectFrom(SoField *fromField)
     SbBool              connectFrom(SoEngineOutput *fromEngine)
     void                disconnect()
     SbBool              isConnected() const
     SbBool              isConnectedFromField() const
     SbBool              getConnectedField(SoField *&writingField) const
     SbBool              isConnectedFromEngine() const
     SbBool              getConnectedEngine(SoEngineOutput *&engineOutput) const
     void                enableConnection(SbBool flag)
     SbBool              isConnectionEnabled() const
     int                 getForwardConnections(SoFieldList &list) const
     SoFieldContainer *  getContainer() const

DESCRIPTION

       A multiple-value field that contains any number of two-dimensional vectors.

       SoMFVec2fs  are  written  to  file as one or more pairs of floating point values separated by whitespace.
       When more than one value is present, all of the values are enclosed in square brackets and  separated  by
       commas; for example:

          [ 0 0, 1.2 3.4, 98.6 -4e1 ]

METHODS

     void                setValues(int start, int num, const float xy[][2])
          Sets num values starting at index start to the given floating point values. There must be num*2 values
          in the passed array.

     void                set1Value(int index, float x, float y)
     void                set1Value(int index, const float xy[2])
          Set the index'th value to the given floating point values.

     void                setValue(float x, float y)
     void                setValue(const float xy[2])
          Sets the field to contain the given value and only the given value (if the array had  multiple  values
          before, they are deleted).

     static SoType       getClassTypeId()
     virtual void        getTypeId() const
          Returns the type for this class or a particular object of this class.

     const SbVec2f &     operator [](int i) const
          Returns  the  i'th  value  of the field. Indexing past the end of the field (passing in i greater than
          getNum()) will return garbage.

     const SbVec2f *     getValues(int start) const
          Returns a pointer into the array of values in the field, starting at index start. The values are read-
          only; see the startEditing()/finishEditing() methods for a way of modifying values in place.

     int                 find(const SbVec2f & targetValue, SbBool addIfNotFound = FALSE)
          Finds  the  given value in the array and returns the index of that value in the array. If the value is
          not found, -1 is returned. If addIfNotFound is set, then targetValue is added to the end of the  array
          (but -1 is still returned).

     void                setValues(int start, int num, const SbVec2f *newValues)
          Sets num values starting at index start to the values in newValues. The array will be automatically be
          made larger to accomodate the new values, if necessary.

     void                set1Value(int index, const SbVec2f & newValue)
          Sets the index'th value in the array to  newValue.  The  array  will  be  automatically  expanded,  if
          necessary.

     const SbVec2f &     operator =(const SbVec2f & newValue)
     void                setValue(const SbVec2f & newValue)
          Sets the first value in the array to newValue, and deletes the second and subsequent values.

     int                 operator ==(const SoMFVec2f &f) const
     int                 operator !=(const SoMFVec2f &f) const
          Returns  TRUE if all of the values of this field equal (do not equal) those of the given field. If the
          fields are different types FALSE will always be returned (even if one field is an SoMFFloat  with  one
          value of 1.0 and the other is an SoMFInt with a value of 1, for example).

     SbVec2f *           startEditing()
     void                finishEditing()
          startEditing()  returns  a pointer to the internally-maintained array that can be modified. The values
          in the array may be changed, but values cannot be added or removed. It is illegal to  call  any  other
          editing methods between startEditing() and finishEditing() (e.g. set1Value(), setValue(), etc).

          Fields,  engines  or  sensors connected to this field and sensors are not notified that this field has
          changed until finishEditing() is called. Calling finishEditing() always sets the isDefault()  flag  to
          FALSE and informs engines and sensors that the field changed, even if none of the values actually were
          changed.

                                                                                                SoMFVec2f(3IV)()