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126 lines
4.1 KiB
C++
126 lines
4.1 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkCellLocator.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 vtkAxisExtended - octree-based spatial search object to quickly locate cells
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// .SECTION Description
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// This implements the optimization based tick position calculating algorithm in the paper "An Extension of Wilkinson's Algorithm
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// for Positioning Tick Labels on Axes" by Junstin Talbot, Sharon Lin and Pat Hanrahan
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// .SECTION Caveats
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// .SECTION See Also
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// vtkAxis
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#ifndef vtkAxisExtended_h
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#define vtkAxisExtended_h
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#endif
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#include "vtkChartsCoreModule.h" // For export macro
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#include "vtkObject.h"
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#include "vtkVector.h" // Needed for vtkVector
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class VTKCHARTSCORE_EXPORT vtkAxisExtended : public vtkObject
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{
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public:
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vtkTypeMacro(vtkAxisExtended, vtkObject);
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static vtkAxisExtended *New();
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virtual void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// This method return a value to make step sizes corresponding to low q
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// and j values more preferable
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static double Simplicity(int qIndex, int qLength, int j, double lmin,
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double lmax, double lstep);
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// Description:
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// This method returns the maximum possible value of simplicity value given
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// q and j
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static double SimplicityMax(int qIndex, int qLength, int j);
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// Description:
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// This method makes the data range approximately same as the labeling
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// range more preferable
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static double Coverage(double dmin, double dmax, double lmin, double lmax);
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// Description:
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//This gives the maximum possible value of coverage given the step size
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static double CoverageMax(double dmin, double dmax, double span);
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// Description:
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// This method return a value to make the density of the labels close to
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// the user given value
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static double Density(int k, double m, double dmin, double dmax,
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double lmin, double lmax);
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// Description:
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// Derives the maximum values for density given k (number of ticks) and
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// m (user given)
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static double DensityMax(int k, double m);
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// Description:
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// This methods return the legibility score of different formats
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static double FormatLegibilityScore(double n, int format);
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// Description:
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// This method returns the string length of different format notations.
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static int FormatStringLength(int format, double n, int precision);
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// Description:
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// This method implements the algorithm given in the paper
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// The method return the minimum tick position, maximum tick position and
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// the tick spacing
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vtkVector3d GenerateExtendedTickLabels(double dmin, double dmax, double m,
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double scaling);
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// Description:
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// Set/Get methods for variables
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vtkGetMacro(FontSize, int);
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vtkSetMacro(FontSize, int);
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vtkGetMacro(DesiredFontSize, int);
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vtkSetMacro(DesiredFontSize, int);
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vtkGetMacro(Precision, int);
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vtkSetMacro(Precision, int);
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vtkGetMacro(LabelFormat, int);
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vtkSetMacro(LabelFormat, int);
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vtkGetMacro(Orientation, int);
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vtkSetMacro(Orientation, int);
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vtkGetMacro(IsAxisVertical, bool);
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vtkSetMacro(IsAxisVertical, bool);
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protected:
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vtkAxisExtended();
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~vtkAxisExtended();
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// Description:
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// This method implements an exhaustive search of the legibilty parameters.
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double Legibility(double lmin, double lmax, double lstep, double scaling,
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vtkVector<int, 3>& parameters);
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int Orientation;
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int FontSize;
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int DesiredFontSize;
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int Precision;
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int LabelFormat;
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bool LabelLegibilityChanged;
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bool IsAxisVertical;
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private:
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vtkAxisExtended(const vtkAxisExtended&); // Not implemented.
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void operator=(const vtkAxisExtended&); // Not implemented.
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};
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