test_triangulation.cpp

Go to the documentation of this file.

/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2021 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */
 
#include <qa_utils/wx_utils/unit_test_utils.h>
#include <pcbnew_utils/board_test_utils.h>
#include <board.h>
#include <board_design_settings.h>
#include <pad.h>
#include <pcb_track.h>
#include <footprint.h>
#include <zone.h>
#include <drc/drc_item.h>
#include <settings/settings_manager.h>
 
 
struct TRIANGULATE_TEST_FIXTURE
{
 TRIANGULATE_TEST_FIXTURE() :
 m_settingsManager( true /* headless */ )
 { }
 
 SETTINGS_MANAGER m_settingsManager;
 std::unique_ptr<BOARD> m_board;
};
 
 
BOOST_FIXTURE_TEST_CASE( RegressionTriangulationTests, TRIANGULATE_TEST_FIXTURE )
{
 std::vector<wxString> tests = {
 "issue2568",
 "issue5313",
 "issue5320",
 "issue5567",
 "issue5830",
 "issue6039",
 "issue6260",
 "issue7086",
 "issue14294",
 "issue17559",
 "bad_triangulation_case"
 };
 
 
 for( const wxString& relPath : tests )
 {
 KI_TEST::LoadBoard( m_settingsManager, relPath, m_board );
 
 BOARD_DESIGN_SETTINGS& bds = m_board->GetDesignSettings();
 
 for( ZONE* zone : m_board->Zones() )
 {
 if( zone->GetIsRuleArea() )
 continue;
 
 for( PCB_LAYER_ID layer : zone->GetLayerSet().Seq())
 {
 auto poly = zone->GetFilledPolysList( layer );
 
 if( poly->OutlineCount() == 0 )
 continue;
 
 BOOST_CHECK_MESSAGE(
 poly->IsTriangulationUpToDate(),
 "Triangulation invalid for " + relPath + " layer " + LayerName( layer )
 + " zone " + zone->GetFriendlyName() + " net '" + zone->GetNetname()
 + "' with " + std::to_string( poly->OutlineCount() )
 + " polygons at position " + std::to_string( poly->BBox().Centre().x )
 + ", " + std::to_string( poly->BBox().Centre().y ) );
 
 double area = poly->Area();
 double tri_area = 0.0;
 
 for( int ii = 0; ii < poly->TriangulatedPolyCount(); ii++ )
 {
 const auto tri_poly = poly->TriangulatedPolygon( ii );
 
 for( const auto& tri : tri_poly->Triangles() )
 tri_area += tri.Area();
 }
 
 double diff = std::abs( area - tri_area );
 
 // The difference should be less than 1e-3 square mm
 BOOST_CHECK_MESSAGE( diff < 1e9,
 "Triangulation area mismatch in " + relPath + " layer "
 + LayerName( layer )
 + " difference: " + std::to_string( diff ) );
 }
 }
 }
}