regionDeleteYline
[ XITE Reference Manual | XITE home ]
Name
regionDeleteYline - delete yline from a region
Syntax
#include <xite/region.h>
yline *regionDeleteYline( region* reg, int y,
int xmin, int xmax );
Description
Delete an yline, the line xmin..xmax on line y,
in region reg. After all ylines have been deleteed
in the region, regionEndInsert should be called.
Restrictions
After removing the yline, the region must still be
4 or 8 connected.
See also
regionAnalyse(1), regionArea(3),
regionConvexHull(3), regionCreate(3), regionDraw(3),
regionFree(3), regionHisto(3), regionHistoUpdate(3),
regionImoment(3), regionInsertYline(3),
regionEndInsert(3), regionXmean(3), regionYmean(3),
regionMean(3), regionXmin(3), regionXmax(3), regionYmin(3),
regionYmax(3), regionMinMax(3), regionCMoment(3),
regionPMoment(3), regionMoment(3), regionPerform(3),
regionPerimeter(3), regionIsPoint(3), regionPoint(3),
regionSearch(3), regionSort(3), regionCopy(3), regionUnion(3),
regionOverlap(3), regionNeighbor(3), regionVolume(3),
regionYline(3)
Diagnostics
Warning 2: y less than ymin
Warning 3: y greater than ymax
Warning 4: object not connected.
Warning 5: no pixels in the given area.
Return value
The deleted or updated yline object if ok, nil otherwise.
Author
Tor L|nnestad, BLAB, ifi, UiO
Id
$Id: regionInsert.c,v 1.15 1997/01/29 10:45:10 svein Exp $