--- name: "SoMFVec4f" section: "3iv" platform: "linux" package: "inventor-doc" version: "2.1.6+ds-2" release: "Debian 13 (Trixie)" platforms: ["linux"] url: "https://new.carta.tech/SoMFVec4f/3iv" --- # SoMFVec4f(3iv) multiple-value field containing any number of four-dimensional vectors ## NAME SoMFVec4f — multiple-value field containing any number of four-dimensional vectors ## INHERITS FROM SoField \> SoMField \> SoMFVec4f ## SYNOPSIS **#include \** Methods from class SoMFVec4f: **void** **setValues(int start, int num, const float xyzw\[\]\[4\])**\ **void** **set1Value(int index, float x, float y, float z, float w)**\ **void** **set1Value(int index, const float xyzw\[4\])**\ **void** **setValue(float x, float y, float z, float w)**\ **void** **setValue(const float xyzw\[4\])**\ **static SoType** **getClassTypeId()**\ **virtual void** **getTypeId() const**\ **const SbVec4f &** **operator \[\](int i) const**\ **const SbVec4f \*** **getValues(int start) const**\ **int** **find(const SbVec4f & targetValue, SbBool addIfNotFound = FALSE)**\ **void** **setValues(int start, int num, const SbVec4f \*newValues)**\ **void** **set1Value(int index, const SbVec4f & newValue)**\ **const SbVec4f &** **operator =(const SbVec4f & newValue)**\ **void** **setValue(const SbVec4f & newValue)**\ **int** **operator ==(const SoMFVec4f &f) const**\ **int** **operator !=(const SoMFVec4f &f) const**\ **SbVec4f \*** **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 four-dimensional vectors.** **SoMFVec4fs** are written to file as one or more triples 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 0, 1.2 3.4 5.6, 98.6 -4e1 212 ] ``` ## METHODS **void** **setValues(int start, int num, const float xyzw\[\]\[4\])**\ Sets **num** values starting at index **start** to the given floating point values. There must be **num**\*4 values in the passed array. **void** **set1Value(int index, float x, float y, float z, float w)**\ **void** **set1Value(int index, const float xyzw\[4\])**\ Set the **index**'th value to the given floating point values. **void** **setValue(float x, float y, float z, float w)**\ **void** **setValue(const float xyzw\[4\])**\ 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 SbVec4f &** **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 SbVec4f \*** **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 SbVec4f & 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 SbVec4f \*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 SbVec4f & newValue)**\ Sets the **index**'th value in the array to **newValue**. The array will be automatically expanded, if necessary. **const SbVec4f &** **operator =(const SbVec4f & newValue)**\ **void** **setValue(const SbVec4f & newValue)**\ Sets the first value in the array to **newValue**, and deletes the second and subsequent values. **int** **operator ==(const SoMFVec4f &f) const**\ **int** **operator !=(const SoMFVec4f &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). **SbVec4f \*** **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.