vgl_triangle_scan_iterator< T > Class Template Reference

#include <vgl_triangle_scan_iterator.h>

Inheritance diagram for vgl_triangle_scan_iterator< T >:

[legend]List of all members.

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Detailed Description

template<class T>
class vgl_triangle_scan_iterator< T >

Optimized polygon scan iterator for triangles.

Definition at line 19 of file vgl_triangle_scan_iterator.h.

Public Member Functions
void	reset ()
	Resets the scan iterator to before the first scan line.
bool	next ()
	Tries to move to the next scan line.
int	scany () const
	y-coordinate of the current scan line.
int	startx () const
	Returns starting x-value of the current scan line.
int	endx () const
	Returns ending x-value of the current scan line.
int	count ()
	Number of image points (= integer grid points) inside the region.
Public Attributes
vgl_triangle_scan_iterator::pt	a
	Vertices of triangle.
vgl_triangle_scan_iterator::pt	b
	Vertices of triangle.
vgl_triangle_scan_iterator::pt	c
	Vertices of triangle.
Private Attributes
int	scany_
int	startx_
int	endx_
int	y0
int	y1
int	x0
int	x1
pt	g
T	data [3][3]
Classes
struct	pt
	Vertices of triangle. More...

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Member Function Documentation

int vgl_region_scan_iterator::count (   )  [inline, inherited]

Number of image points (= integer grid points) inside the region. Definition at line 48 of file vgl_region_scan_iterator.h.

template<class T> int vgl_triangle_scan_iterator< T >::endx (   )  const [inline, virtual]

Returns ending x-value of the current scan line. endx() should be larger than startx(), unless the scan line is empty Implements vgl_region_scan_iterator. Definition at line 34 of file vgl_triangle_scan_iterator.h.

template<class T> bool vgl_triangle_scan_iterator< T >::next (   )  [virtual]

Tries to move to the next scan line. Returns false if there are no more scan lines. Implements vgl_region_scan_iterator. Definition at line 137 of file vgl_triangle_scan_iterator.txx.

template<class T> void vgl_triangle_scan_iterator< T >::reset (   )  [virtual]

Resets the scan iterator to before the first scan line. After calling this function, next() needs to be called before startx() and endx() form a valid scan line. Implements vgl_region_scan_iterator. Definition at line 69 of file vgl_triangle_scan_iterator.txx.

template<class T> int vgl_triangle_scan_iterator< T >::scany (   )  const [inline, virtual]

y-coordinate of the current scan line. The next scan line is *not* guaranteed to have scany()+1; use next() instead. Implements vgl_region_scan_iterator. Definition at line 32 of file vgl_triangle_scan_iterator.h.

template<class T> int vgl_triangle_scan_iterator< T >::startx (   )  const [inline, virtual]

Returns starting x-value of the current scan line. startx() should be smaller than endx(), unless the scan line is empty Implements vgl_region_scan_iterator. Definition at line 33 of file vgl_triangle_scan_iterator.h.

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Member Data Documentation

template<class T> struct vgl_triangle_scan_iterator::pt vgl_triangle_scan_iterator< T >::a

Vertices of triangle.

template<class T> struct vgl_triangle_scan_iterator::pt vgl_triangle_scan_iterator< T >::b

Vertices of triangle.

template<class T> struct vgl_triangle_scan_iterator::pt vgl_triangle_scan_iterator< T >::c

Vertices of triangle.

template<class T> T vgl_triangle_scan_iterator< T >::data[3][3] [private]

Definition at line 49 of file vgl_triangle_scan_iterator.h.

template<class T> int vgl_triangle_scan_iterator< T >::endx_ [private]

Definition at line 39 of file vgl_triangle_scan_iterator.h.

template<class T> pt vgl_triangle_scan_iterator< T >::g [private]

Definition at line 48 of file vgl_triangle_scan_iterator.h.

template<class T> int vgl_triangle_scan_iterator< T >::scany_ [private]

Definition at line 37 of file vgl_triangle_scan_iterator.h.

template<class T> int vgl_triangle_scan_iterator< T >::startx_ [private]

Definition at line 38 of file vgl_triangle_scan_iterator.h.

template<class T> int vgl_triangle_scan_iterator< T >::x0 [private]

Definition at line 46 of file vgl_triangle_scan_iterator.h.

template<class T> int vgl_triangle_scan_iterator< T >::x1 [private]

Definition at line 46 of file vgl_triangle_scan_iterator.h.

template<class T> int vgl_triangle_scan_iterator< T >::y0 [private]

Definition at line 45 of file vgl_triangle_scan_iterator.h.

template<class T> int vgl_triangle_scan_iterator< T >::y1 [private]

Definition at line 45 of file vgl_triangle_scan_iterator.h.

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The documentation for this class was generated from the following files:

• core/vgl/vgl_triangle_scan_iterator.h
• core/vgl/vgl_triangle_scan_iterator.txx

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