FreeMat
vtkSignedCharArray

Section: Visualization Toolkit Common Classes

Usage

vtkSignedCharArray is an array of values of type signed char. It provides methods for insertion and retrieval of values and will automatically resize itself to hold new data.

To create an instance of class vtkSignedCharArray, simply invoke its constructor as follows

  obj = vtkSignedCharArray

Methods

The class vtkSignedCharArray has several methods that can be used. They are listed below. Note that the documentation is translated automatically from the VTK sources, and may not be completely intelligible. When in doubt, consult the VTK website. In the methods listed below, obj is an instance of the vtkSignedCharArray class.

  • string = obj.GetClassName ()
  • int = obj.IsA (string name)
  • vtkSignedCharArray = obj.NewInstance ()
  • vtkSignedCharArray = obj.SafeDownCast (vtkObject o)
  • int = obj.GetDataType () - Copy the tuple value into a user-provided array.
  • signed = obj.char GetValue (vtkIdType id) - Set the data at a particular index. Does not do range checking. Make sure you use the method SetNumberOfValues() before inserting data.
  • obj.SetValue (vtkIdType id, signed char value) - Specify the number of values for this object to hold. Does an allocation as well as setting the MaxId ivar. Used in conjunction with SetValue() method for fast insertion.
  • obj.SetNumberOfValues (vtkIdType number) - Insert data at a specified position in the array.
  • obj.InsertValue (vtkIdType id, signed char f) - Insert data at the end of the array. Return its location in the array.
  • vtkIdType = obj.InsertNextValue (signed char f) - Get the address of a particular data index. Make sure data is allocated for the number of items requested. Set MaxId according to the number of data values requested.
  • signed = obj.string WritePointer (vtkIdType id, vtkIdType number) - Get the address of a particular data index. Performs no checks to verify that the memory has been allocated etc.
  • signed = obj.string GetPointer (vtkIdType id) - This method lets the user specify data to be held by the array. The array argument is a pointer to the data. size is the size of the array supplied by the user. Set save to 1 to keep the class from deleting the array when it cleans up or reallocates memory. The class uses the actual array provided; it does not copy the data from the suppled array.