Version 5.0 The LEDA User Manual

void
void
void
W.draw edge(double x 1 , double y 1 , double x 2 , double y 2 , color c = window :: fgcol)
draws an edge from (x 1 , y 1 ) to (x 2 , y 2 ).
W.draw edge(const point& p, const point& q, color c = window :: fgcol)
draws an edge from p to q.
W.draw edge(const segment& s, color c = window :: fgcol)
draws an edge from s.start() to s.end().
void W.draw edge arrow(double x 1 , double y 1 , double x 2 , double y 2 ,
color c = window :: fgcol)
draws a directed edge from (x 1 , y 1 ) to (x 2 , y 2 ).
void
void
W.draw edge arrow(const point& p, const point& q, color c = window :: fgcol)
draws a directed edge from p to q.
W.draw edge arrow(const segment& s, color c = window :: fgcol)
draws a directed edge from s.start() to s.end().
3.4.14 Bitmaps and Pixrects
char∗ W.create bitmap(int w, int h, unsigned char ∗ bm data)
char∗ W.create pixrect(const char ∗ ∗xpm str)
char∗ W.create pixrect(string xpm file)
creates a bitmap (monochrome pixrect) of width w, height
h, from the bits in data.
creates a pixrect from the xpm data string xpm str.
creates a pixrect from the xpm file xpm file.
char∗ W.create pixrect(int w, int h, unsigned char ∗ bm data, int fg = window :: fgcol,
int bg = window :: bgcol)
creates a pixrect of width w, height h, foreground color
fg, and background color bg from bitmap data.
char∗ W.get pixrect(double x 1 , double y 1 , double x 2 , double y 2 )
char∗ W.get window pixrect( )
creates a color pixrect of width w = x 2 − x 1 , height h =
y2 − y1, and copies all pixels from the rectangular area
(x 1 , x 2 , y 1 , y 2 ) of W into it.
creates a pixrect copy of the current window contents.
int
W.get width(char ∗ pr) returns the width (number of pixels in a row) of pixrect
pr.