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REGIONINSERTYLINE

Section: C Library Functions (3)
Updated: 16 Mar 1998
Index

NAME

regionInsertYline - insert yline into newly created region

SYNTAX

#include <xite/region.h>

yline *regionInsertYline( region* reg, int y,
int xmin, int xmax );

DESCRIPTION

Insert an yline, the line xmin..xmax on line y,into region reg. After all ylines have been insertedinto the region, regionEndInsert should be called.

Notice that if the new yline segment overlaps with twoor more existing ylines, the superfluous yline objectswill be freed.

RESTRICTIONS

The new yline must be connected to the existing region,with the neighborhod connectedness of the region(4 or 8). The new yline must lie within the ymin..ymaxinterval of the region object.

regionAnalyse(1), regionArea(3),regionConvexHull(3), regionCreate(3), regionDraw(3),regionFree(3), regionHisto(3), regionHistoUpdate(3),regionImoment(3), regionDeleteYline(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

RETURN VALUE

The inserted 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 $

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