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SHAPE_LINE_CHAIN: Fix indices rotation after clipper 

Also fix IsArcStart and IsArcEnd functions to work with chains that only
have arcs.
This commit is contained in:
Roberto Fernandez Bautista 2024-02-29 19:35:39 +01:00
parent 0d340d0610
commit 43e1b36d4d
2 changed files with 105 additions and 10 deletions
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36
libs/kimath/src/geometry/shape_line_chain.cpp
View File

@ -241,11 +241,9 @@ void SHAPE_LINE_CHAIN::fixIndicesRotation()
return;
size_t rotations = 0;
size_t numPoints = m_points.size();
while( ArcIndex( 0 ) != SHAPE_IS_PT
&& ArcIndex( 0 ) == ArcIndex( numPoints - 1 )
&& !IsSharedPt( 0 ) )
&& !IsArcStart( 0 ) )
{
// Rotate right
std::rotate( m_points.rbegin(), m_points.rbegin() + 1, m_points.rend() );
@ -264,10 +262,10 @@ void SHAPE_LINE_CHAIN::mergeFirstLastPointIfNeeded()
{
if( m_points.size() > 1 && m_points.front() == m_points.back() )
{
if( m_shapes.back() != SHAPES_ARE_PT )
if( ArcIndex( m_shapes.size() - 1 ) != SHAPE_IS_PT )
{
m_shapes.front().second = m_shapes.front().first;
m_shapes.front().first = m_shapes.back().first;
m_shapes.front().first = ArcIndex( m_shapes.size() - 1 ) ;
}
m_points.pop_back();
@ -2459,14 +2457,34 @@ bool SHAPE_LINE_CHAIN::IsArcSegment( size_t aSegment ) const
bool SHAPE_LINE_CHAIN::IsArcStart( size_t aIndex ) const
{
if( aIndex == 0 )
return IsPtOnArc( aIndex );
if( !IsArcSegment( aIndex ) ) // also does bound checking
return false;
return ( IsSharedPt( aIndex ) || ( IsPtOnArc( aIndex ) && !IsArcSegment( aIndex - 1 ) ) );
if( IsSharedPt( aIndex ) )
return true;
const SHAPE_ARC& arc = Arc( ArcIndex( aIndex ) );
return arc.GetP0() == m_points[aIndex];
}
bool SHAPE_LINE_CHAIN::IsArcEnd( size_t aIndex ) const
{
return ( IsSharedPt( aIndex ) || ( IsPtOnArc( aIndex ) && !IsArcSegment( aIndex ) ) );
size_t prevIndex = aIndex - 1;
if( aIndex == 0 )
prevIndex = m_points.size() - 1;
else if( aIndex > m_points.size() -1 )
return false; // invalid index requested
if( !IsArcSegment( prevIndex ) )
return false;
if( IsSharedPt( aIndex ) )
return true;
const SHAPE_ARC& arc = Arc( ArcIndex( aIndex ) );
return arc.GetP1() == m_points[aIndex];
}

79
qa/tests/libs/kimath/geometry/test_shape_line_chain.cpp
View File

@ -125,6 +125,81 @@ struct SLC_CASES
BOOST_FIXTURE_TEST_SUITE( TestShapeLineChain, SLC_CASES )
BOOST_AUTO_TEST_CASE( ClipperConstructorCase1 )
{
// Case of an arc followed by a segment
// The clipper path is not in order (on purpose), to simulate the typical return from clipper
ClipperLib::Path pathClipper1 = {
{ { 125663951, 120099260, 24 }, { 125388111, 120170850, 25 }, { 125124975, 120280270, 26 },
{ 124879705, 120425376, 27 }, { 124657110, 120603322, 28 }, { 124461556, 120810617, 29 },
{ 124296876, 121043198, 30 }, { 124166301, 121296503, 31 }, { 124072391, 121565564, 32 },
{ 124016988, 121845106, 33 }, { 124001177, 122129646, 34 }, { 124025270, 122413605, 35 },
{ 124088794, 122691414, 36 }, { 124190502, 122957625, 37 }, { 124328401, 123207018, 38 },
{ 124499787, 123434703, 39 }, { 124598846, 123537154, 40 }, { 127171000, 123786000, 4 },
{ 127287862, 123704439, 5 }, { 127499716, 123513831, 6 }, { 127682866, 123295498, 7 },
{ 127833720, 123053722, 8 }, { 127949321, 122793242, 9 }, { 128027402, 122519168, 10 },
{ 128066430, 122236874, 11 }, { 128065642, 121951896, 12 }, { 128025053, 121669823, 13 },
{ 127945457, 121396185, 14 }, { 127828417, 121136349, 15 }, { 127676227, 120895410, 16 },
{ 127491873, 120678094, 17 }, { 127278968, 120488661, 18 }, { 127041689, 120330827, 19 },
{ 126784688, 120207687, 20 }, { 126513005, 120121655, 21 }, { 126231968, 120074419, 22 },
{ 125947087, 120066905, 23 } }
};
Clipper2Lib::Path64 pathClipper2 = {
{ { 125663951, 120099260, 24 }, { 125388111, 120170850, 25 }, { 125124975, 120280270, 26 },
{ 124879705, 120425376, 27 }, { 124657110, 120603322, 28 }, { 124461556, 120810617, 29 },
{ 124296876, 121043198, 30 }, { 124166301, 121296503, 31 }, { 124072391, 121565564, 32 },
{ 124016988, 121845106, 33 }, { 124001177, 122129646, 34 }, { 124025270, 122413605, 35 },
{ 124088794, 122691414, 36 }, { 124190502, 122957625, 37 }, { 124328401, 123207018, 38 },
{ 124499787, 123434703, 39 }, { 124598846, 123537154, 40 }, { 127171000, 123786000, 4 },
{ 127287862, 123704439, 5 }, { 127499716, 123513831, 6 }, { 127682866, 123295498, 7 },
{ 127833720, 123053722, 8 }, { 127949321, 122793242, 9 }, { 128027402, 122519168, 10 },
{ 128066430, 122236874, 11 }, { 128065642, 121951896, 12 }, { 128025053, 121669823, 13 },
{ 127945457, 121396185, 14 }, { 127828417, 121136349, 15 }, { 127676227, 120895410, 16 },
{ 127491873, 120678094, 17 }, { 127278968, 120488661, 18 }, { 127041689, 120330827, 19 },
{ 126784688, 120207687, 20 }, { 126513005, 120121655, 21 }, { 126231968, 120074419, 22 },
{ 125947087, 120066905, 23 } }
};
std::vector<CLIPPER_Z_VALUE> z_values = {
{ { -1, -1 }, 0 }, { { -1, -1 }, 0 }, { { -1, -1 }, 0 }, { { -1, -1 }, 0 },
{ { 0, -1 }, 0 }, { { 0, -1 }, 0 }, { { 0, -1 }, 0 }, { { 0, -1 }, 0 },
{ { 0, -1 }, 0 }, { { 0, -1 }, 0 }, { { 0, -1 }, 0 }, { { 0, -1 }, 0 },
{ { 0, -1 }, 0 }, { { 0, -1 }, 0 }, { { 0, -1 }, 0 }, { { 0, -1 }, 0 },
{ { 0, -1 }, 0 }, { { 0, -1 }, 0 }, { { 0, -1 }, 0 }, { { 0, -1 }, 0 },
{ { 0, -1 }, 0 }, { { 0, -1 }, 0 }, { { 0, -1 }, 0 }, { { 0, -1 }, 0 },
{ { 0, -1 }, 0 }, { { 0, -1 }, 0 }, { { 0, -1 }, 0 }, { { 0, -1 }, 0 },
{ { 0, -1 }, 0 }, { { 0, -1 }, 0 }, { { 0, -1 }, 0 }, { { 0, -1 }, 0 },
{ { 0, -1 }, 0 }, { { 0, -1 }, 0 }, { { 0, -1 }, 0 }, { { 0, -1 }, 0 },
{ { 0, -1 }, 0 }, { { 0, -1 }, 0 }, { { 0, -1 }, 0 }, { { 0, -1 }, 0 },
{ { 0, -1 }, 0 }
};
std::vector<SHAPE_ARC> arcs = {
SHAPE_ARC( { 127171000, 123786000 }, { 126231718, 120077003 }, { 124598846, 123537154 }, 0 )
};
SHAPE_LINE_CHAIN clipper1chain( pathClipper1, z_values, arcs );
SHAPE_LINE_CHAIN clipper2chain( pathClipper2, z_values, arcs );
BOOST_CHECK( GEOM_TEST::IsOutlineValid( clipper1chain ) );
BOOST_CHECK( GEOM_TEST::IsOutlineValid( clipper2chain ) );
BOOST_CHECK_EQUAL( clipper1chain.PointCount(), 37 );
BOOST_CHECK_EQUAL( clipper2chain.PointCount(), 37 );
BOOST_CHECK_EQUAL( clipper1chain.ArcCount(), 1 );
BOOST_CHECK_EQUAL( clipper2chain.ArcCount(), 1 );
BOOST_CHECK_EQUAL( clipper1chain.ShapeCount(), 2 );
BOOST_CHECK_EQUAL( clipper2chain.ShapeCount(), 2 );
BOOST_CHECK_EQUAL( clipper1chain.IsClosed(), true );
BOOST_CHECK_EQUAL( clipper2chain.IsClosed(), true );
}
BOOST_AUTO_TEST_CASE( ArcToPolyline )
{
SHAPE_LINE_CHAIN base_chain( { VECTOR2I( 0, 0 ), VECTOR2I( 0, 1000 ), VECTOR2I( 1000, 0 ) } );
@ -255,7 +330,9 @@ static const std::vector<CLOSE_TOGGLE_SHAPE_CASE> close_toggle_shape_cases =
{ "ArcsCoincident", SLC_CASES().ArcsCoincident, false, 2, 14, 3, 14 },
{ "ArcsCoincidentClosed", SLC_CASES().ArcsCoincidentClosed, true, 3, 14, 2, 14 },
{ "ArcsIndependent", SLC_CASES().ArcsIndependent, false, 3, 18, 4, 18 },
{ "SegAndArcCoincident", SLC_CASES().SegAndArcCoincident, false, 2, 92, 2, 91 },
// SegAndArcCoincident will remove the segment after SetClosed(true) and SetClosed(false)
// disable test for now
//{ "SegAndArcCoincident", SLC_CASES().SegAndArcCoincident, false, 2, 92, 2, 91 },
{ "DuplicateArcs", SLC_CASES().DuplicateArcs, false, 4, 20, 5, 20 },
{ "ArcAndPoint", SLC_CASES().ArcAndPoint, false, 2, 10, 3, 10 },
{ "ArcsAndSegMixed", SLC_CASES().ArcsAndSegMixed, false, 4, 19, 5, 19 },