Qwt User's Guide 5.2.2
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Some clipping algos. More...
#include <qwt_clipper.h>
Static Public Member Functions | |
static QwtArray < QwtDoubleInterval > | clipCircle (const QwtDoubleRect &, const QwtDoublePoint &, double radius) |
static QwtPolygon | clipPolygon (const QRect &, const QwtPolygon &) |
static QwtPolygonF | clipPolygonF (const QwtDoubleRect &, const QwtPolygonF &) |
Some clipping algos.
QwtArray< QwtDoubleInterval > QwtClipper::clipCircle | ( | const QwtDoubleRect & | clipRect, |
const QwtDoublePoint & | center, | ||
double | radius | ||
) | [static] |
Circle clipping
clipCircle() devides a circle into intervals of angles representing arcs of the circle. When the circle is completely inside the clip rectangle an interval [0.0, 2 * M_PI] is returned.
clipRect | Clip rectangle |
center | Center of the circle |
radius | Radius of the circle |
QwtPolygon QwtClipper::clipPolygon | ( | const QRect & | clipRect, |
const QwtPolygon & | polygon | ||
) | [static] |
Sutherland-Hodgman polygon clipping
clipRect | Clip rectangle |
polygon | Polygon |
QwtPolygonF QwtClipper::clipPolygonF | ( | const QwtDoubleRect & | clipRect, |
const QwtPolygonF & | polygon | ||
) | [static] |
Sutherland-Hodgman polygon clipping
clipRect | Clip rectangle |
polygon | Polygon |