线性刻度的自动美化缩放器更多...

#include <qwt3d_autoscaler.h>

类 Qwt3D::LinearAutoScaler 继承关系图:

Protected 成员函数
	LinearAutoScaler ()
	Initializes with an {1,2,5} sequence of mantissas

	LinearAutoScaler (std::vector< double > &mantisses)
	Initialize with interval [0,1] and one requested interval

AutoScaler *	clone () const

int	execute (double &a, double &b, double start, double stop, int ivals)

友元
class	LinearScale

详细描述

线性刻度的自动美化缩放器

构造及析构函数说明

◆ LinearAutoScaler()

LinearAutoScaler::LinearAutoScaler ( std::vector< double > & mantisse )

explicitprotected

Initialize with interval [0,1] and one requested interval

val mantisse A increasing ordered vector of values representing mantisse values between 1 and 9.

成员函数说明

◆ clone()

AutoScaler * Qwt3D::LinearAutoScaler::clone ( ) const

inlineprotectedvirtual

实现了 Qwt3D::AutoScaler.

◆ execute()

int LinearAutoScaler::execute	(	double &	a,
		double &	b,
		double	start,
		double	stop,
		int	ivals
	)

protectedvirtual

  \brief Does the actual scaling
  \return Number of intervals after rescaling. This will in the most cases differ
  from the requested interval number!  Always >0.
  \param a Start value after scaling (always >= start)
  \param b Stop value after scaling  (always <= stop)

参数

start	Start value
stop	Stop value
ivals	Requested intervals

返回

Number of intervals after autoscaling

  If the given interval has zero length the function returns the current
  interval number and a and b remain unchanged.