/usr/include/qwtplot3d/qwt3d_autoscaler.h is in libqwtplot3d-qt5-dev 0.2.7+svn191-10.1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | #ifndef __qwt3d_autoscaler_2003_08_18_12_05__
#define __qwt3d_autoscaler_2003_08_18_12_05__
#include <vector>
#include "qwt3d_global.h"
#include "qwt3d_autoptr.h"
namespace Qwt3D
{
//! ABC for autoscaler
class QWT3D_EXPORT AutoScaler
{
friend class qwt3d_ptr<AutoScaler>;
protected:
//! Returns a new heap based object of the derived class.
virtual AutoScaler* clone() const = 0;
//! To implement from subclasses
virtual int execute(double& a, double& b, double start, double stop, int ivals) = 0;
virtual ~AutoScaler(){}
private:
void destroy() const {delete this;} //!< Used by qwt3d_ptr
};
//! Automatic beautifying of linear scales
class QWT3D_EXPORT LinearAutoScaler : public AutoScaler
{
friend class LinearScale;
protected:
LinearAutoScaler();
explicit LinearAutoScaler(std::vector<double>& mantisses);
//! Returns a new heap based object utilized from qwt3d_ptr
AutoScaler* clone() const {return new LinearAutoScaler(*this);}
int execute(double& a, double& b, double start, double stop, int ivals);
private:
double start_, stop_;
int intervals_;
void init(double start, double stop, int ivals);
double anchorvalue(double start, double mantisse, int exponent);
int segments(int& l_intervals, int& r_intervals, double start, double stop, double anchor, double mantissa, int exponent);
std::vector<double> mantissi_;
};
} // ns
#endif
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