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nmWTAI-Platform/3rd/VTK7.1/include/vtkPlotFunctionalBag.h

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C++

/*=========================================================================
Program: Visualization Toolkit
Module: vtkPlotFunctionalBag.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 vtkPlotFunctionalBag
* @brief Class for drawing an XY line plot or bag
* given two columns from a vtkTable.
*
*
* Depending on the number of components, this class will draw either
* a line plot (for 1 component column) or, for two components columns,
* a filled polygonal band (the bag) going from the first to the second
* component on the Y-axis along the X-axis. The filter
* vtkExtractFunctionalBagPlot is intended to create such "bag" columns.
*
* @sa
* vtkExtractFunctionalBagPlot
*/
#ifndef vtkPlotFunctionalBag_h
#define vtkPlotFunctionalBag_h
#include "vtkChartsCoreModule.h" // For export macro
#include "vtkPlot.h"
#include "vtkNew.h" // Needed to hold SP ivars
class vtkDataArray;
class vtkPlotFuntionalBagInternal;
class vtkPlotLine;
class vtkPoints2D;
class vtkScalarsToColors;
class VTKCHARTSCORE_EXPORT vtkPlotFunctionalBag : public vtkPlot
{
public:
vtkTypeMacro(vtkPlotFunctionalBag, vtkPlot);
virtual void PrintSelf(ostream &os, vtkIndent indent);
/**
* Creates a functional bag plot object.
*/
static vtkPlotFunctionalBag *New();
/**
* Returns true if the plot is a functional bag, false if it is a simple
* line.
*/
virtual bool IsBag();
/**
* Reimplemented to enforce visibility when selected.
*/
virtual bool GetVisible();
/**
* Perform any updates to the item that may be necessary before rendering.
* The scene should take care of calling this on all items before their
* Paint function is invoked.
*/
virtual void Update();
/**
* Paint event for the plot, called whenever the chart needs to be drawn.
*/
virtual bool Paint(vtkContext2D *painter);
/**
* Paint legend event for the plot, called whenever the legend needs the
* plot items symbol/mark/line drawn. A rect is supplied with the lower left
* corner of the rect (elements 0 and 1) and with width x height (elements 2
* and 3). The plot can choose how to fill the space supplied.
*/
virtual bool PaintLegend(vtkContext2D *painter, const vtkRectf& rect,
int legendIndex);
/**
* Get the bounds for this plot as (Xmin, Xmax, Ymin, Ymax).
*/
virtual void GetBounds(double bounds[4]);
/**
* Get the non-log-scaled bounds on chart inputs for this plot as
* (Xmin, Xmax, Ymin, Ymax).
*/
virtual void GetUnscaledInputBounds(double bounds[4]);
//@{
/**
* Specify a lookup table for the mapper to use.
*/
void SetLookupTable(vtkScalarsToColors *lut);
vtkScalarsToColors *GetLookupTable();
//@}
/**
* Create default lookup table. Generally used to create one when none
* is available with the scalar data.
*/
virtual void CreateDefaultLookupTable();
/**
* Function to query a plot for the nearest point to the specified coordinate.
* Returns the index of the data series with which the point is associated or
* -1.
*/
virtual vtkIdType GetNearestPoint(const vtkVector2f& point,
const vtkVector2f& tolerance,
vtkVector2f* location);
/**
* Select all points in the specified rectangle.
*/
virtual bool SelectPoints(const vtkVector2f& min, const vtkVector2f& max);
/**
* Select all points in the specified polygon.
*/
virtual bool SelectPointsInPolygon(const vtkContextPolygon &polygon);
protected:
vtkPlotFunctionalBag();
~vtkPlotFunctionalBag();
/**
* Populate the data arrays ready to operate on input data.
*/
bool GetDataArrays(vtkTable *table, vtkDataArray *array[2]);
/**
* Update the table cache.
*/
bool UpdateTableCache(vtkTable*);
/**
* The cache is marked dirty until it has been initialized.
*/
vtkTimeStamp BuildTime;
/**
* Lookup Table for coloring points by scalar value
*/
vtkScalarsToColors *LookupTable;
/**
* The plot line delegate for line series
*/
vtkNew<vtkPlotLine> Line;
/**
* The bag points ordered in quadstrip fashion
*/
vtkNew<vtkPoints2D> BagPoints;
bool LogX, LogY;
private:
vtkPlotFunctionalBag(const vtkPlotFunctionalBag &) VTK_DELETE_FUNCTION;
void operator=(const vtkPlotFunctionalBag &) VTK_DELETE_FUNCTION;
};
#endif //vtkPlotFunctionalBag_h