You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
135 lines
4.7 KiB
C++
135 lines
4.7 KiB
C++
/*=========================================================================
|
|
|
|
Program: Visualization Toolkit
|
|
Module: vtkProgrammableSource.h
|
|
|
|
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
|
|
All rights reserved.
|
|
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
|
|
|
|
This software is distributed WITHOUT ANY WARRANTY; without even
|
|
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
PURPOSE. See the above copyright notice for more information.
|
|
|
|
=========================================================================*/
|
|
/**
|
|
* @class vtkProgrammableSource
|
|
* @brief generate source dataset via a user-specified function
|
|
*
|
|
* vtkProgrammableSource is a source object that is programmable by the
|
|
* user. To use this object, you must specify a function that creates the
|
|
* output. It is possible to generate an output dataset of any (concrete)
|
|
* type; it is up to the function to properly initialize and define the
|
|
* output. Typically, you use one of the methods to get a concrete output
|
|
* type (e.g., GetPolyDataOutput() or GetStructuredPointsOutput()), and
|
|
* then manipulate the output in the user-specified function.
|
|
*
|
|
* Example use of this include writing a function to read a data file or
|
|
* interface to another system. (You might want to do this in favor of
|
|
* deriving a new class.) Another important use of this class is that it
|
|
* allows users of interpreters (e.g., Tcl or Java) the ability to write
|
|
* source objects without having to recompile C++ code or generate new
|
|
* libraries.
|
|
* @sa
|
|
* vtkProgrammableFilter vtkProgrammableAttributeDataFilter
|
|
* vtkProgrammableDataObjectSource
|
|
*/
|
|
|
|
#ifndef vtkProgrammableSource_h
|
|
#define vtkProgrammableSource_h
|
|
|
|
#include "vtkFiltersSourcesModule.h" // For export macro
|
|
#include "vtkDataSetAlgorithm.h"
|
|
|
|
class vtkPolyData;
|
|
class vtkStructuredPoints;
|
|
class vtkStructuredGrid;
|
|
class vtkUnstructuredGrid;
|
|
class vtkRectilinearGrid;
|
|
|
|
class VTKFILTERSSOURCES_EXPORT vtkProgrammableSource : public vtkDataSetAlgorithm
|
|
{
|
|
public:
|
|
static vtkProgrammableSource *New();
|
|
vtkTypeMacro(vtkProgrammableSource,vtkDataSetAlgorithm);
|
|
|
|
/**
|
|
* Signature definition for programmable method callbacks. Methods passed
|
|
* to SetExecuteMethod, SetExecuteMethodArgDelete or
|
|
* SetRequestInformationMethod must conform to this signature.
|
|
* The presence of this typedef is useful for reference and for external
|
|
* analysis tools, but it cannot be used in the method signatures in these
|
|
* header files themselves because it prevents the internal VTK wrapper
|
|
* generators from wrapping these methods.
|
|
*/
|
|
typedef void (*ProgrammableMethodCallbackType)(void *arg);
|
|
|
|
/**
|
|
* Specify the function to use to generate the source data. Note
|
|
* that the function takes a single (void *) argument.
|
|
*/
|
|
void SetExecuteMethod(void (*f)(void *), void *arg);
|
|
|
|
/**
|
|
* Set the arg delete method. This is used to free user memory.
|
|
*/
|
|
void SetExecuteMethodArgDelete(void (*f)(void *));
|
|
|
|
/**
|
|
* Specify the function to use to fill in information about the source data.
|
|
*/
|
|
void SetRequestInformationMethod(void (*f)(void *));
|
|
|
|
/**
|
|
* Get the output as a concrete type. This method is typically used by the
|
|
* writer of the source function to get the output as a particular type
|
|
* (i.e., it essentially does type casting). It is the users responsibility
|
|
* to know the correct type of the output data.
|
|
*/
|
|
vtkPolyData *GetPolyDataOutput();
|
|
|
|
/**
|
|
* Get the output as a concrete type.
|
|
*/
|
|
vtkStructuredPoints *GetStructuredPointsOutput();
|
|
|
|
/**
|
|
* Get the output as a concrete type.
|
|
*/
|
|
vtkStructuredGrid *GetStructuredGridOutput();
|
|
|
|
/**
|
|
* Get the output as a concrete type.
|
|
*/
|
|
vtkUnstructuredGrid *GetUnstructuredGridOutput();
|
|
|
|
/**
|
|
* Get the output as a concrete type.
|
|
*/
|
|
vtkRectilinearGrid *GetRectilinearGridOutput();
|
|
|
|
protected:
|
|
vtkProgrammableSource();
|
|
~vtkProgrammableSource() VTK_OVERRIDE;
|
|
|
|
int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *) VTK_OVERRIDE;
|
|
int RequestDataObject(vtkInformation *, vtkInformationVector **, vtkInformationVector *) VTK_OVERRIDE;
|
|
int RequestInformation(vtkInformation *, vtkInformationVector **, vtkInformationVector *) VTK_OVERRIDE;
|
|
|
|
ProgrammableMethodCallbackType ExecuteMethod; //function to invoke
|
|
ProgrammableMethodCallbackType ExecuteMethodArgDelete;
|
|
void *ExecuteMethodArg;
|
|
ProgrammableMethodCallbackType RequestInformationMethod; // function to invoke
|
|
|
|
vtkTimeStamp ExecuteTime;
|
|
int RequestedDataType;
|
|
|
|
private:
|
|
vtkProgrammableSource(const vtkProgrammableSource&) VTK_DELETE_FUNCTION;
|
|
void operator=(const vtkProgrammableSource&) VTK_DELETE_FUNCTION;
|
|
};
|
|
|
|
#endif
|
|
|
|
// VTK-HeaderTest-Exclude: vtkProgrammableSource.h
|