regionOverlap

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Name

regionOverlap - do two regions overlap?

Syntax

 #include <xite/region.h>

 int regionOverlap( region* r1, region* r2 );

Description

Returns TRUE if reg1 and reg2 overlap: if there is one or more pixels that are inside reg1 as well as reg2.

Return value

 TRUE  => reg1 and reg2 overlap
 FALSE => reg1 and reg2 do not overlap - or argument nil

See also

regionAnalyse(1), regionArea(3), regionConvexHull(3), regionCreate(3), regionDraw(3), regionFree(3), regionHisto(3), regionHistoUpdate(3), regionImoment(3), regionInsertYline(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), regionNeighbor(3), regionVolume(3), regionYline(3)

Diagnostics

 Warning 2 : region argument nil

Author

Tor L|nnestad, BLAB, ifi, UiO

Example

 region *reg1, *reg2;
 ..create reg1 and reg2..
 if (regionOverlap(reg1, reg2)) ....

Id

$Id: regionUnion.c,v 1.20 1997/01/29 10:45:15 svein Exp $