#include <randomwipe.hxx>
Public Member Functions | |
| RandomWipe (sal_Int32 nElements, bool randomBars) | |
| virtual ::basegfx::B2DPolyPolygon | operator() (double t) override |
| Retrieve the poly-polygon for value t. More... | |
 Public Member Functions inherited from slideshow::internal::ParametricPolyPolygon | |
| virtual | ~ParametricPolyPolygon () |
| virtual ::basegfx::B2DPolyPolygon | operator() (double t)=0 |
| Retrieve the poly-polygon for value t. More... | |
Private Attributes | |
| ::std::unique_ptr<::basegfx::B2DPoint[]> | m_positions |
| sal_Int32 | m_nElements |
| ::basegfx::B2DPolygon | m_rect |
Detailed Description
Definition at line 31 of file randomwipe.hxx.
Constructor & Destructor Documentation
◆ RandomWipe()
| slideshow::internal::RandomWipe::RandomWipe | ( | sal_Int32 | nElements, |
| bool | randomBars | ||
| ) |
Definition at line 31 of file randomwipe.cxx.
References slideshow::internal::getRandomOrdinal(), m_positions, m_rect, nElements, pos, basegfx::B2DHomMatrix::scale(), and basegfx::B2DPolygon::transform().
Member Function Documentation
◆ operator()()
|
overridevirtual |
Retrieve the poly-polygon for value t.
- Parameters
-
t Current parameter value to retrieve the corresponding poly-polygon for. Permissible values for t must be in the range [0,1].
- Returns
- a poly-polygon corresponding to the given parameter value. The poly-polygon is interpreted as living in the unit rectangle (i.e. [0,1]x[0,1]), but is not necessarily constrained to completely lie in this area (this very much depends on the actual effect to be generated). Although, from a performance perspective, it currently is advantageous to try to keep the poly-polygon within these bounds (at least if there are no hard reasons not to do so), because then reversion or out transformations are potentially faster to compute (see the TransitionInfo::meReverseMethod member in transitionfactory.cxx). Furthermore, if one of the polygon modifications involve subtraction (also see TransitionInfo::meReverseMethod), all generated polygons should be oriented clock-wise (i.e. traversing the polygon vertices with increasing vertex index should generate a clock-wise movement).
Implements slideshow::internal::ParametricPolyPolygon.
Definition at line 67 of file randomwipe.cxx.
References basegfx::B2DPolyPolygon::append(), basegfx::utils::createTranslateB2DHomMatrix(), m_nElements, m_positions, m_rect, point(), pos, t, and basegfx::B2DPolygon::transform().
Member Data Documentation
◆ m_nElements
|
private |
Definition at line 40 of file randomwipe.hxx.
Referenced by operator()().
◆ m_positions
|
private |
Definition at line 39 of file randomwipe.hxx.
Referenced by operator()(), and RandomWipe().
◆ m_rect
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private |
Definition at line 41 of file randomwipe.hxx.
Referenced by operator()(), and RandomWipe().
The documentation for this class was generated from the following files:
