Ensure appended arcs are valid arcs (start, mid, end cannot be collinear)

Fixes https://gitlab.com/kicad/code/kicad/-/issues/9380
This commit is contained in:
Roberto Fernandez Bautista 2021-10-13 18:58:21 +01:00
parent 4b8ca18bf7
commit 9e557d84c6
1 changed files with 17 additions and 6 deletions

View File

@ -1052,6 +1052,16 @@ void SHAPE_LINE_CHAIN::Append( const SHAPE_LINE_CHAIN& aOtherLine )
void SHAPE_LINE_CHAIN::Append( const SHAPE_ARC& aArc )
{
SEG startToEnd( aArc.GetP0(), aArc.GetP1() );
if( startToEnd.Distance( aArc.GetArcMid() ) < 1 )
{
// Not really a valid arc. Add as a straight line segment instead
Append( aArc.GetP0() );
Append( aArc.GetP1() );
}
else
{
SHAPE_LINE_CHAIN chain = aArc.ConvertToPolyline();
// @todo should the below 4 LOC be moved to SHAPE_ARC::ConvertToPolyline ?
@ -1061,6 +1071,7 @@ void SHAPE_LINE_CHAIN::Append( const SHAPE_ARC& aArc )
sh.first = 0;
Append( chain );
}
assert( m_shapes.size() == m_points.size() );
}