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Finish fixing SHAPE_LINE_CHAIN::Slice

This commit is contained in:
Roberto Fernandez Bautista 2024-01-30 21:54:29 +01:00 committed by Alex Shvartzkop
parent 79aba50c23
commit 7276486756
2 changed files with 35 additions and 6 deletions
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17
libs/kimath/src/geometry/shape_line_chain.cpp
View File

@ -1162,8 +1162,14 @@ const SHAPE_LINE_CHAIN SHAPE_LINE_CHAIN::Slice( int aStartIndex, int aEndIndex )
if( aStartIndex < 0 )
aStartIndex += PointCount();
int numPoints = static_cast<int>( m_points.size() );
// Bad programmer checks
wxCHECK( aStartIndex >= 0, SHAPE_LINE_CHAIN() );
wxCHECK( aEndIndex >= 0, SHAPE_LINE_CHAIN() );
wxCHECK( aStartIndex < PointCount(), SHAPE_LINE_CHAIN() );
wxCHECK( aEndIndex < PointCount(), SHAPE_LINE_CHAIN() );
wxCHECK( aEndIndex >= aStartIndex, SHAPE_LINE_CHAIN() );
int numPoints = static_cast<int>( m_points.size() );
if( IsArcSegment( aStartIndex ) && !IsArcStart( aStartIndex ) )
{
@ -1200,11 +1206,10 @@ const SHAPE_LINE_CHAIN SHAPE_LINE_CHAIN::Slice( int aStartIndex, int aEndIndex )
return rv; // NextShape reached the end
int nextShape = NextShape( i );
bool isLastShape = nextShape < 0;
if( IsArcStart( i ) )
{
bool isLastShape = nextShape < 0;
if( ( isLastShape && aEndIndex != ( numPoints - 1 ) )
|| ( nextShape > aEndIndex ) )
{
@ -1260,9 +1265,11 @@ const SHAPE_LINE_CHAIN SHAPE_LINE_CHAIN::Slice( int aStartIndex, int aEndIndex )
wxT( "Still on an arc segment, we missed something..." ) );
if( i == aStartIndex )
rv.Append( GetSegment( i ).A );
rv.Append( m_points[i] );
if( !IsArcStart( nextShape ) && nextShape <= aEndIndex )
bool nextPointIsArc = isLastShape ? false : IsArcSegment( nextShape );
if( !nextPointIsArc && i < SegmentCount() && i < aEndIndex )
rv.Append( GetSegment( i ).B );
}

22
qa/tests/libs/kimath/geometry/test_shape_line_chain.cpp
View File

@ -881,8 +881,30 @@ BOOST_AUTO_TEST_CASE( Slice )
chainCopy.Append( VECTOR2I( 400000, 400000 ) );
SHAPE_LINE_CHAIN sliceResult = chainCopy.Slice( 11, -1 );
BOOST_CHECK( GEOM_TEST::IsOutlineValid( sliceResult ) );
BOOST_CHECK_EQUAL( sliceResult.GetPoint( -1 ), VECTOR2I( 400000, 400000 ) );
}
BOOST_TEST_CONTEXT( "Case 6: Start to end, chain with one point" )
{
SHAPE_LINE_CHAIN chainCopy = SLC_CASES().OnePoint;
SHAPE_LINE_CHAIN sliceResult = chainCopy.Slice( 0, -1 );
BOOST_CHECK_EQUAL( sliceResult.PointCount(), 1 );
BOOST_CHECK_EQUAL( sliceResult.GetPoint( 0 ), VECTOR2I( 233450000, 228360000 ) );
BOOST_CHECK_EQUAL( sliceResult.GetPoint( -1 ), VECTOR2I( 233450000, 228360000 ) ); // Same as index 0
}
BOOST_TEST_CONTEXT( "Case 7: Start to end, chain with two points" )
{
SHAPE_LINE_CHAIN chainCopy = SLC_CASES().TwoPoints;
SHAPE_LINE_CHAIN sliceResult = chainCopy.Slice( 0, -1 );
BOOST_CHECK_EQUAL( sliceResult.PointCount(), 2 );
BOOST_CHECK_EQUAL( sliceResult.GetPoint( 0 ), VECTOR2I( 233450000, 228360000 ) );
BOOST_CHECK_EQUAL( sliceResult.GetPoint( 1 ), VECTOR2I( 263450000, 258360000 ) );
BOOST_CHECK_EQUAL( sliceResult.GetPoint( -1 ), VECTOR2I( 263450000, 258360000 ) ); // Same as index 1
}
}