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Very minor cleanup of no-op code.

This commit is contained in:
Thomas G. Lockhart 1998-10-29 18:11:28 +00:00
parent 9b24e7fa40
commit 396571d79c
1 changed files with 9 additions and 66 deletions
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75
src/backend/utils/adt/geo_ops.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/geo_ops.c,v 1.38 1998/10/26 01:01:33 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/geo_ops.c,v 1.39 1998/10/29 18:11:28 thomas Exp $
*
*-------------------------------------------------------------------------
*/
@ -2733,18 +2733,6 @@ on_pb(Point *pt, BOX *box)
bool
on_ppath(Point *pt, PATH *path)
{
#if FALSE
int above,
next, /* is the seg above the ray? */
inter, /* # of times path crosses ray */
hi; /* index inc of higher seg (0,1) */
double x,
yh,
yl,
xh,
xl;
#endif
int i,
n;
double a,
@ -2753,8 +2741,9 @@ on_ppath(Point *pt, PATH *path)
if (!PointerIsValid(pt) || !PointerIsValid(path))
return FALSE;
/*-- OPEN --*/
if (!path->closed)
{ /*-- OPEN --*/
{
n = path->npts - 1;
a = point_dt(pt, &path->p[0]);
for (i = 0; i < n; i++)
@ -2768,58 +2757,8 @@ on_ppath(Point *pt, PATH *path)
return FALSE;
}
/*-- CLOSED --*/
return point_inside(pt, path->npts, path->p);
#if FALSE
inter = 0; /*-- CLOSED --*/
above = FPgt(path->p[0].y, pt->y) ? ABOVE :
FPlt(path->p[0].y, pt->y) ? BELOW : UNDEF;
for (i = 0; i < path->npts; i++)
{
hi = path->p[i].y < path->p[NEXT(i)].y;
/*
* must take care of wrap around to original vertex for closed
* paths
*/
yh = (i + hi < path->npts) ? path->p[i + hi].y : path->p[0].y;
yl = (i + !hi < path->npts) ? path->p[i + !hi].y : path->p[0].y;
hi = path->p[i].x < path->p[NEXT(i)].x;
xh = (i + hi < path->npts) ? path->p[i + hi].x : path->p[0].x;
xl = (i + !hi < path->npts) ? path->p[i + !hi].x : path->p[0].x;
/* skip seg if it doesn't touch the ray */
if (FPeq(yh, yl)) /* horizontal seg? */
if (FPge(pt->x, xl) && FPle(pt->x, xh) &&
FPeq(pt->y, yh))
return TRUE; /* pt lies on seg */
else
continue; /* skip other hz segs */
if (FPlt(yh, pt->y) || /* pt is strictly below seg */
FPgt(yl, pt->y)) /* strictly above */
continue;
/* seg touches the ray, find out where */
x = FPeq(xh, xl) /* vertical seg? */
? path->p[i].x
: (pt->y - path->p[i].y) /
point_sl(&path->p[i],
&path->p[NEXT(i)]) +
path->p[i].x;
if (FPeq(x, pt->x)) /* pt lies on this seg */
return TRUE;
/* does the seg actually cross the ray? */
next = FPgt(path->p[NEXT(i)].y, pt->y) ? ABOVE :
FPlt(path->p[NEXT(i)].y, pt->y) ? BELOW : above;
inter += FPge(x, pt->x) && next != above;
above = next;
}
return (above == UNDEF || /* path is horizontal */
inter % 2); /* odd # of intersections */
#endif
} /* on_ppath() */
@ -3577,9 +3516,13 @@ path_contain_pt(PATH *path, Point *p)
if (!PointerIsValid(path) || !PointerIsValid(p))
return FALSE;
return (path->closed ? (point_inside(p, path->npts, &(path->p[0])) != 0) : FALSE);
return (on_ppath(p, path));
} /* path_contain_pt() */
/* pt_contained_path
* Point in or on path? This is the same as on_ppath.
* - thomas 1998-10-29
*/
bool
pt_contained_path(Point *p, PATH *path)
{