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Fix a logical bug in the routine which strips out holes from a multi-contour

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polygon.
This commit is contained in:
curt 2004-11-11 15:07:14 +00:00
parent fb71b5876c
commit 06978b3cc4
1 changed files with 4 additions and 2 deletions
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6
src/Lib/Polygon/polygon.cxx
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@ -558,7 +558,7 @@ TGPolygon tgPolygonSplitLongEdges( const TGPolygon &poly, double max_len ) {
}
// Traverse a polygon and toss all the internal holes
// Traverse a polygon and return the union of all the non-hole contours
TGPolygon tgPolygonStripHoles( const TGPolygon &poly ) {
TGPolygon result; result.erase();
@ -568,7 +568,9 @@ TGPolygon tgPolygonStripHoles( const TGPolygon &poly ) {
// SG_LOG(SG_GENERAL, SG_DEBUG, "contour = " << i);
point_list contour = poly.get_contour( i );
if ( ! poly.get_hole_flag(i) ) {
result.add_contour( contour, poly.get_hole_flag(i) );
TGPolygon tmp;
tmp.add_contour( contour, poly.get_hole_flag(i) );
result = tgPolygonUnion( tmp, result );
}
}