Definition at line 19 of file qwt_scale_map.h.
Public Types | |
enum | Type { RubberBand, Text, Linear, Log10, Other } |
Public Member Functions | |
QwtScaleTransformation (Type type) | |
virtual | ~QwtScaleTransformation () |
virtual double | xForm (double x, double s1, double s2, double p1, double p2) const |
virtual double | invXForm (double x, double s1, double s2, double p1, double p2) const |
Type | type () const |
virtual QwtScaleTransformation * | copy () const |
QwtScaleTransformation::QwtScaleTransformation | ( | Type | type | ) |
Constructor for a linear transformation.
Definition at line 16 of file qwt_scale_map.cpp.
References QwtScaleTransformation().
Referenced by QwtScaleTransformation().
double QwtScaleTransformation::xForm | ( | double | s, | |
double | s1, | |||
double | s2, | |||
double | p1, | |||
double | p2 | |||
) | const [virtual] |
Transform a value between 2 linear intervals.
x | value related to the interval [x1, x2] | |
x1 | first border of source interval | |
x2 | first border of source interval | |
y1 | first border of target interval | |
y2 | first border of target interval |
Definition at line 47 of file qwt_scale_map.cpp.
Referenced by QwtScaleMap::xTransform().
double QwtScaleTransformation::invXForm | ( | double | p, | |
double | p1, | |||
double | p2, | |||
double | s1, | |||
double | s2 | |||
) | const [virtual] |
Transform a value from a linear to a logarithmic interval.
x | value related to the linear interval [p1, p2] | |
p1 | first border of linear interval | |
p2 | first border of linear interval | |
s1 | first border of logarithmic interval | |
s2 | first border of logarithmic interval |
Definition at line 70 of file qwt_scale_map.cpp.
Referenced by QwtScaleMap::invTransform().