| SoMFVec3f Class |
Multiple-value field containing any number of three-dimensional vectors.
Inheritance HierarchyOIV.InventorSoNetBase
OIV.Inventor.FieldsSoField
OIV.Inventor.FieldsSoMField
OIV.Inventor.FieldsSoMFVec3f
Namespace: OIV.Inventor.Fields
Assembly: OIV.Inventor (in OIV.Inventor.dll) Version: 2023.1.3.0 (2023.1.3)
SyntaxThe SoMFVec3f type exposes the following members.
ConstructorsMethods| Name | Description | |
|---|---|---|
 | AppendConnection(SoEngineOutput) | Appends this field to the list of connections from another engineOutput. |
| AppendConnection(SoField) | Appends this field to the list of connections from another field. |
| ConnectFrom(SoEngineOutput) | Connects this field from an engine output. |
| ConnectFrom(SoField) | Connects this field to another field. |
| CopyFrom | Copy from another field of same type. |
| DeleteValues(Int32) | Calls DeleteValues(start, -1). (Inherited from SoMField.) |
| DeleteValues(Int32, Int32) | Deletes num values beginning at index start (index start through start + num -1 will be deleted, and any leftover values will be moved down to fill in the gap created). |
| DisableDeleteValues | Temporary disable value deleting. |
| Disconnect | Disconnect the field from whatever it was connected to. |
| Disconnect(SoEngineOutput) | Disconnect the field from the requested engineOutput. |
| Disconnect(SoField) | Disconnect the field from the requested field. |
| EnableConnection | Field connections may be enabled and disabled. |
| Equals | (Overrides SoFieldEquals(Object).) |
| Find(SbVec3f) | Calls Find(targetValue, false). |
| Find(SbVec3f, Boolean) | Finds the given targetValue in the array and returns the index of that value. |
| FinishEditing | Indicates that batch edits have finished. |
| Get | Returns the value of the field in the Open Inventor file format, even if the field has its default value. |
| Get1 | This is equivalent to the OIV.Inventor.Fields.SoField.Get(System.String@) method of OIV.Inventor.Fields.SoField, but operates on only one value. |
| GetConnectedEngine | Returns true if this field is being written into by an engine, and returns the engine output it is connected to in engineOutput. |
| GetConnectedField | Returns true if this field is being written into by another field, and returns the field it is connected to in writingField. |
| GetConnections | Returns a list of the connections to this field. |
| GetContainer | Returns the object that contains this field. |
| GetForwardConnections | Adds references to all of the fields that this field is writing into (either fields in nodes, global fields or engine inputs) to the given field list, and returns the number of forward connections. |
| GetHashCode |
Overrides GetHashCode().
(Inherited from SoNetBase.) |
| GetNum | Obsolete. Returns the number of values currently in the field. |
| GetNumConnections | Returns the number of connections to this field. |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| GetValues | Returns a pointer into the array of values in the field, starting at index start. |
| GetValueSize | Gets the size of the value. |
| InsertSpace | Inserts space for num values at index start . |
| IsConnected | Returns true if the field is connected to anything. |
| IsConnectedFromEngine | Returns true if the field is connected to an engine's output. |
| IsConnectedFromField | Returns true if the field is connected to another field. |
| IsConnectedFromVRMLInterp | Returns true if the field is connected to a VRML interpOutput. |
| IsConnectionEnabled | Returns false if connections to this field are disabled. |
| IsDefault | Gets the state of default flag of the field. |
| IsIgnored | Gets the ignore flag for this field. |
| Set | Sets the field to the given value, which is an ASCII string in the Open Inventor file format. |
| Set1 | This is equivalent to the OIV.Inventor.Fields.SoField.Set(System.String) method of OIV.Inventor.Fields.SoField, but operates on only one value. |
| Set1Value(Int32, SbVec3d) | Sets one value from double precision vector. |
| Set1Value(Int32, SbVec3f) | Obsolete. Sets the index'th value in the array to newValue. |
| Set1Value(Int32, Single) | Sets one value from 3 floats in array. |
| Set1Value(Int32, Single, Single, Single) | Sets one value from 3 floats. |
| SetIgnored | Sets the ignore flag for this field. |
| SetNum | Obsolete. Forces this field to have exactly num values, inserting or deleting values as necessary. |
| SetValue(Single) | Sets to one value from 3 floats in array. |
| SetValue(SbVec3d) | Sets to one value from double precision vector. |
| SetValue(SbVec3f) | Sets the first value in the array to newValue, and deletes. |
| SetValue(Single, Single, Single) | Sets to one value from 3 floats. |
| SetValues(Int32, SbVec3d) | Sets values from array of double precision vectors. |
| SetValues(Int32, SbVec3f) | Sets num values starting at index start to the values. |
| SetValues(Int32, Int32, Single) | Sets values from array of arrays of 3 floats. |
| SetValuesBuffer(Single) | Sets the field to contain the values stored in userData. |
| SetValuesBuffer(SbVec3f) | Sets the field to contain the values stored in userData. |
| StartEditing | Returns a pointer to the internally maintained array that can be modified. |
| ToString |
Converts this SoMFField structure to a human readable string.
(Inherited from SoMField.) |
| Touch | Simulates a change to the field, causing attached sensors to fire, connected fields and engines to be marked as needing evaluation, and so forth. |
Operators| Name | Description | |
|---|---|---|
  | Equality | |
| Inequality |
Properties| Name | Description | |
|---|---|---|
 | Count | Returns the number of values currently in the field. |
| IsUserDefinedBuffer | (Inherited from SoMField.) |
| Item | Returns the i'th value of the field. |
RemarksA multiple-value field that contains any number of three-dimensional vectors.
SoMFVec3fs 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 ]
Using the OIV.Inventor.Fields.SoMFVec3f.SetValues(System.Int32, OIV.Inventor.SbVec3f[]) method:
Note: If you use the OIV.Inventor.Fields.SoMFVec3f.SetValues(System.Int32, OIV.Inventor.SbVec3f[]) method to set a larger number of values than the field currently contains, Open Inventor will automatically allocate more memory. The total number of values in the field is increased as expected. However the converse is not true. If you use OIV.Inventor.Fields.SoMFVec3f.SetValues(System.Int32, OIV.Inventor.SbVec3f[]) to set a smaller number of values than the field currently contains, you are simply overriding some of the values in the field. The total number of values in the field does not change. If you want to replace the current contents of the field with a smaller number of values, first call setNum( 0 ), then call OIV.Inventor.Fields.SoMFVec3f.SetValues(System.Int32, OIV.Inventor.SbVec3f[]).
Using an Application-Supplied Array
The SetValuesBuffer()methods allow Open Inventor to directly use an array of values supplied by the application. The application data is not copied.
When using application data directly the values may be modified by changing the application memory and calling OIV.Inventor.Fields.SoField.Touch() to notify Open Inventor of the change. The values may also be modified using the usual methods ((), etc.)
However, note that some methods ((), OIV.Inventor.Fields.SoMField.DeleteValues(System.Int32, System.Int32), OIV.Inventor.Fields.SoMField.InsertSpace(System.Int32, System.Int32), OIV.Inventor.Fields.SoMFVec3f.SetValues(System.Int32, OIV.Inventor.SbVec3f[]), (), OIV.Inventor.Fields.SoMFVec3f.SetValue(OIV.Inventor.SbVec3f)) may force Open Inventor to allocate a larger block of memory to hold all the values. In this case, Open Inventor will allocate memory internally and copy the data. Modifying values in the application memory will not affect the field if Open Inventor has allocated new memory.
Example:
SbVec3f[] vertices = new SbVec3f[NUM_VERTICES]; SoVertexProperty vertexProperty = new SoVertexProperty(); vertexProperty.vertex.SetValuesBuffer( vertices ); vertices[5].SetValue( 0, 1, 2 ); vertexProperty.vertex.Touch();
See Also