From adc93f6097615f16d57e8a24a256302f2144ec4e Mon Sep 17 00:00:00 2001 From: rsc Date: Fri, 14 Jan 2005 17:37:50 +0000 Subject: cut out the html - they're going to cause diffing problems. --- man/man3/addpt.html | 174 ---------------------------------------------------- 1 file changed, 174 deletions(-) delete mode 100644 man/man3/addpt.html (limited to 'man/man3/addpt.html') diff --git a/man/man3/addpt.html b/man/man3/addpt.html deleted file mode 100644 index 1c327aaa..00000000 --- a/man/man3/addpt.html +++ /dev/null @@ -1,174 +0,0 @@ - -addpt(3) - Plan 9 from User Space - - - - -
-
-
ADDPT(3)ADDPT(3) -
-
-

NAME
- -
- - addpt, subpt, mulpt, divpt, rectaddpt, rectsubpt, insetrect, canonrect, - eqpt, eqrect, ptinrect, rectinrect, rectXrect, rectclip, combinerect, - Dx, Dy, Pt, Rect, Rpt – arithmetic on points and rectangles
- -
-

SYNOPSIS
- -
- - #include <u.h>
- #include <libc.h>
- #include <draw.h> -
- - Point       addpt(Point p, Point q) -
- - Point       subpt(Point p, Point q) -
- - Point       mulpt(Point p, int a) -
- - Point       divpt(Point p, int a) -
- - Rectangle rectaddpt(Rectangle r, Point p) -
- - Rectangle rectsubpt(Rectangle r, Point p) -
- - Rectangle insetrect(Rectangle r, int n) -
- - Rectangle canonrect(Rectangle r) -
- - int         eqpt(Point p, Point q) -
- - int         eqrect(Rectangle r, Rectangle s) -
- - int         ptinrect(Point p, Rectangle r) -
- - int         rectinrect(Rectangle r, Rectangle s) -
- - int         rectXrect(Rectangle r, Rectangle s) -
- - int         rectclip(Rectangle *rp, Rectangle b) -
- - void        combinerect(Rectangle *rp, Rectangle b) -
- - int         Dx(Rectangle r) -
- - int         Dy(Rectangle r) -
- - Point       Pt(int x, int y) -
- - Rectangle Rect(int x0, int y0, int x1, int y1) -
- - Rectangle Rpt(Point p, Point q)
- -
-

DESCRIPTION
- -
- - The functions Pt, Rect and Rpt construct geometrical data types - from their components. -
- - Addpt returns the Point sum of its arguments: Pt(p.x+q.x, p.y+q.y). - Subpt returns the Point difference of its arguments: Pt(p.x−q.x, - p.y−q.y). Mulpt returns the Point Pt(p.x*a, p.y*a). Divpt returns - the Point Pt(p.x/a, p.y/a). -
- - Rectaddpt returns the Rectangle Rect(add(r.min, p), add(r.max, - p)); rectsubpt returns the Rectangle Rpt(sub(r.min, p), sub(r.max, - p)). -
- - Insetrect returns the Rectangle Rect(r.min.x+n, r.min.y+n, r.max.x−n, - r.max.y−n). -
- - Canonrect returns a rectangle with the same extent as r, canonicalized - so that min.x ≤ max.x, and min.y ≤ max.y. -
- - Eqpt compares its argument Points and returns 0 if unequal, 1 - if equal. Eqrect does the same for its argument Rectangles. -
- - Ptinrect returns 1 if p is a point within r, and 0 otherwise. - -
- - Rectinrect returns 1 if all the pixels in r are also in s, and - 0 otherwise. -
- - RectXrect returns 1 if r and s share any point, and 0 otherwise. - -
- - Rectclip clips in place the Rectangle pointed to by rp so that - it is completely contained within b. The return value is 1 if - any part of *rp is within b. Otherwise, the return value is 0 - and *rp is unchanged. -
- - Combinerect overwrites *rp with the smallest rectangle sufficient - to cover all the pixels of *rp and b. -
- - The functions Dx and Dy give the width (Δx) and height (Δy) of - a Rectangle. They are implemented as macros.
- -
-

SOURCE
- -
- - /usr/local/plan9/src/libdraw
- -
-

SEE ALSO
- -
- - graphics(3)
- -
- -

 -
-
- - -
-
-
-Space Glenda -
-
- - -- cgit v1.2.3