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117 lines
4.0 KiB
C++
117 lines
4.0 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkPlotArea.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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// .NAME vtkPlotArea - draws an area plot.
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// .SECTION Description
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// vtkPlotArea is used to render an area plot. An area plot (sometimes called a
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// range plot) renders a filled region between the selected ymin and ymax
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// arrays.
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// To specify the x array and ymin/ymax arrays, use the SetInputArray method
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// with array index as 0, 1, or 2, respectively.
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#ifndef vtkPlotArea_h
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#define vtkPlotArea_h
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#include "vtkPlot.h"
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class VTKCHARTSCORE_EXPORT vtkPlotArea : public vtkPlot
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{
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public:
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static vtkPlotArea* New();
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vtkTypeMacro(vtkPlotArea, vtkPlot);
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void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// Convenience method to set the input arrays. vtkPlotArea supports the
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// following indices:
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// \li 0: x-axis,
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// \li 1: y-axis,
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// \li 2: y-axis.
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using Superclass::SetInputArray;
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// Description:
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// Overridden to set the brush color.
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virtual void SetColor(unsigned char r, unsigned char g, unsigned char b,
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unsigned char a);
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virtual void SetColor(double r, double g, double b);
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// Description:
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// Get/set the valid point mask array name.
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vtkGetMacro(ValidPointMaskName, vtkStdString)
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vtkSetMacro(ValidPointMaskName, vtkStdString)
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// Description:
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// Perform any updates to the item that may be necessary before rendering.
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virtual void Update();
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// Description:
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// Get the bounds for this plot as (Xmin, Xmax, Ymin, Ymax).
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virtual void GetBounds(double bounds[4]);
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// Description:
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// Subclasses that build data caches to speed up painting should override this
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// method to update such caches. This is called on each Paint, hence
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// subclasses must add checks to avoid rebuilding of cache, unless necessary.
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virtual void UpdateCache();
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// Description:
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// Paint event for the XY plot, called whenever the chart needs to be drawn
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virtual bool Paint(vtkContext2D *painter);
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// Description:
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// Paint legend event for the plot, called whenever the legend needs the
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// plot items symbol/mark/line drawn. A rect is supplied with the lower left
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// corner of the rect (elements 0 and 1) and with width x height (elements 2
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// and 3). The plot can choose how to fill the space supplied. The index is used
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// by Plots that return more than one label.
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virtual bool PaintLegend(vtkContext2D *painter, const vtkRectf& rect,
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int legendIndex);
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//BTX
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// Description:
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// Function to query a plot for the nearest point to the specified coordinate.
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// Returns the index of the data series with which the point is associated, or
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// -1 if no point was found.
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virtual vtkIdType GetNearestPoint(const vtkVector2f& point,
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const vtkVector2f& tolerance,
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vtkVector2f* location);
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// Description:
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// Generate and return the tooltip label string for this plot
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// The segmentIndex parameter is ignored, except for vtkPlotBar
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virtual vtkStdString GetTooltipLabel(const vtkVector2d &plotPos,
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vtkIdType seriesIndex,
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vtkIdType segmentIndex);
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protected:
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vtkPlotArea();
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~vtkPlotArea();
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// Description:
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// Name of the valid point mask array.
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vtkStdString ValidPointMaskName;
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private:
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vtkPlotArea(const vtkPlotArea&); // Not implemented.
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void operator=(const vtkPlotArea&); // Not implemented.
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class vtkTableCache;
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vtkTableCache* TableCache;
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vtkTimeStamp UpdateTime;
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//ETX
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};
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#endif
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