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.