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Add SHAPE_LINE_CHAIN tests for arcs with shared points

This commit is contained in:
Roberto Fernandez Bautista 2021-11-20 15:57:58 +00:00
parent 17407b850c
commit 389cb7d4bc
1 changed files with 58 additions and 0 deletions
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58
qa/libs/kimath/geometry/test_shape_line_chain.cpp
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@ -112,6 +112,64 @@ BOOST_AUTO_TEST_CASE( ArcToPolylineLargeCoords )
} }
// Test special case where the last arc in the chain has a shared point with the first arc
BOOST_AUTO_TEST_CASE( ArcWrappingToStart )
{
// represent a circle with two semicircular arcs
SHAPE_ARC arc1( VECTOR2I( 100000, 0 ), VECTOR2I( 0, 100000 ), VECTOR2I( -100000, 0 ), 0 );
SHAPE_ARC arc2( VECTOR2I( -100000, 0 ), VECTOR2I( 0, -100000 ), VECTOR2I( 100000, 0 ), 0 );
// Start a chain with the two arcs
SHAPE_LINE_CHAIN chain;
chain.Append( arc1 );
chain.Append( arc2 );
BOOST_CHECK_EQUAL( chain.PointCount(), 13 );
//BOOST_CHECK( GEOM_TEST::IsOutlineValid( chain ) );
// OPEN CHAIN
// Start of the chain is not yet a shared point, so can't be an arc end either
BOOST_CHECK_EQUAL( chain.IsSharedPt( 0 ), false );
BOOST_CHECK_EQUAL( chain.IsArcEnd( 0 ), false );
BOOST_CHECK_EQUAL( chain.IsArcStart( 0 ), true );
// Index 6 is the shared point between the two arcs in the middle of the chain
BOOST_CHECK_EQUAL( chain.IsSharedPt( 6 ), true );
BOOST_CHECK_EQUAL( chain.IsArcEnd( 6 ), true );
BOOST_CHECK_EQUAL( chain.IsArcStart( 6 ), true );
// End index is not yet a shared point
int endIndex = chain.PointCount() - 1;
BOOST_CHECK_EQUAL( chain.IsSharedPt( endIndex ), false );
BOOST_CHECK_EQUAL( chain.IsArcEnd( endIndex ), true );
BOOST_CHECK_EQUAL( chain.IsArcStart( endIndex ), false );
for( int i = 0; i < chain.PointCount(); i++ )
{
BOOST_CHECK_EQUAL( chain.IsPtOnArc( i ), true ); // all points in the chain are arcs
}
// CLOSED CHAIN
chain.SetClosed( true );
BOOST_CHECK_EQUAL( chain.PointCount(), 12 ); // (-1) should have removed coincident points
//BOOST_CHECK( GEOM_TEST::IsOutlineValid( chain ) );
// Start of the chain should be a shared point now, so can't be an arc end either
BOOST_CHECK_EQUAL( chain.IsSharedPt( 0 ), true );
BOOST_CHECK_EQUAL( chain.IsArcEnd( 0 ), true );
BOOST_CHECK_EQUAL( chain.IsArcStart( 0 ), true );
// Index 6 is the shared point between the two arcs in the middle of the chain
BOOST_CHECK_EQUAL( chain.IsSharedPt( 6 ), true );
BOOST_CHECK_EQUAL( chain.IsArcEnd( 6 ), true );
BOOST_CHECK_EQUAL( chain.IsArcStart( 6 ), true );
// End index is in the middle of an arc, so not an end point or shared point
endIndex = chain.PointCount() - 1;
BOOST_CHECK_EQUAL( chain.IsSharedPt( endIndex ), false );
BOOST_CHECK_EQUAL( chain.IsArcEnd( endIndex ), false );
BOOST_CHECK_EQUAL( chain.IsArcStart( endIndex ), false );
}
// Test SHAPE_LINE_CHAIN::Split() // Test SHAPE_LINE_CHAIN::Split()
BOOST_AUTO_TEST_CASE( Split ) BOOST_AUTO_TEST_CASE( Split )
{ {