624 lines
22 KiB
C++
624 lines
22 KiB
C++
/**
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* @file zones_test_and_combine_areas.cpp
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* @brief Functions to test, merge and cut polygons used as copper areas outlines
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* some pieces of code come from FreePCB.
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*/
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/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2012 Jean-Pierre Charras, jean-pierre.charras@ujf-grenoble.fr
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* Copyright (C) 1992-2012 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* Some code comes from FreePCB.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <fctsys.h>
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#include <common.h>
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#include <confirm.h>
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#include <class_undoredo_container.h>
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#include <class_board.h>
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#include <class_zone.h>
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#include <class_marker_pcb.h>
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#include <pcbnew.h>
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#include <drc_stuff.h>
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#include <math_for_graphics.h>
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#define STRAIGHT 0 // To be remove after math_for_graphics code cleanup
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bool BOARD::OnAreaPolygonModified( PICKED_ITEMS_LIST* aModifiedZonesList,
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ZONE_CONTAINER* modified_area )
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{
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// clip polygon against itself
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bool modified = NormalizeAreaPolygon( aModifiedZonesList, modified_area );
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// now see if we need to clip against other areas
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LAYER_NUM layer = modified_area->GetLayer();
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bool bCheckAllAreas = TestAreaIntersections( modified_area );
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if( bCheckAllAreas )
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{
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modified = true;
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CombineAllAreasInNet( aModifiedZonesList, modified_area->GetNetCode(), true );
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}
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if( !IsCopperLayer( layer ) ) // Refill non copper zones on this layer
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{
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for( unsigned ia = 0; ia < m_ZoneDescriptorList.size(); ia++ )
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if( m_ZoneDescriptorList[ia]->GetLayer() == layer )
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m_ZoneDescriptorList[ia]->BuildFilledSolidAreasPolygons( this );
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}
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// Test for bad areas: all zones must have more than 2 corners:
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// Note: should not happen, but just in case.
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for( unsigned ii = 0; ii < m_ZoneDescriptorList.size(); )
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{
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ZONE_CONTAINER* zone = m_ZoneDescriptorList[ii];
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if( zone->GetNumCorners() >= 3 )
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ii++;
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else // Remove zone because it is incorrect:
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RemoveArea( aModifiedZonesList, zone );
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}
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return modified;
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}
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bool BOARD::CombineAllAreasInNet( PICKED_ITEMS_LIST* aDeletedList, int aNetCode,
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bool aUseLocalFlags )
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{
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if( m_ZoneDescriptorList.size() <= 1 )
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return false;
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bool modified = false;
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// Loop through all combinations
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for( unsigned ia1 = 0; ia1 < m_ZoneDescriptorList.size() - 1; ia1++ )
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{
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ZONE_CONTAINER* curr_area = m_ZoneDescriptorList[ia1];
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if( curr_area->GetNetCode() != aNetCode )
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continue;
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// legal polygon
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EDA_RECT b1 = curr_area->Outline()->GetBoundingBox();
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bool mod_ia1 = false;
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for( unsigned ia2 = m_ZoneDescriptorList.size() - 1; ia2 > ia1; ia2-- )
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{
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ZONE_CONTAINER* area2 = m_ZoneDescriptorList[ia2];
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if( area2->GetNetCode() != aNetCode )
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continue;
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if( curr_area->GetPriority() != area2->GetPriority() )
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continue;
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if( curr_area->GetIsKeepout() != area2->GetIsKeepout() )
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continue;
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if( curr_area->GetLayer() != area2->GetLayer() )
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continue;
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EDA_RECT b2 = area2->Outline()->GetBoundingBox();
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if( b1.Intersects( b2 ) )
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{
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// check area2 against curr_area
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if( curr_area->GetLocalFlags() || area2->GetLocalFlags()
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|| aUseLocalFlags == false )
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{
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bool ret = TestAreaIntersection( curr_area, area2 );
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if( ret )
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ret = CombineAreas( aDeletedList, curr_area, area2 );
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if( ret )
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{
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mod_ia1 = true;
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modified = true;
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}
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}
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}
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}
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if( mod_ia1 )
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ia1--; // if modified, we need to check it again
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}
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return modified;
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}
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bool BOARD::TestAreaIntersections( ZONE_CONTAINER* area_to_test )
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{
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for( unsigned ia2 = 0; ia2 < m_ZoneDescriptorList.size(); ia2++ )
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{
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ZONE_CONTAINER* area2 = m_ZoneDescriptorList[ia2];
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if( area_to_test->GetNetCode() != area2->GetNetCode() )
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continue;
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if( area_to_test == area2 )
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continue;
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// see if areas are on same layer
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if( area_to_test->GetLayer() != area2->GetLayer() )
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continue;
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// test for different priorities
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if( area_to_test->GetPriority() != area2->GetPriority() )
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continue;
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// test for different types
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if( area_to_test->GetIsKeepout() != area2->GetIsKeepout() )
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continue;
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if( TestAreaIntersection( area_to_test, area2 ) )
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return true;
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}
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return false;
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}
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bool BOARD::TestAreaIntersection( ZONE_CONTAINER* area_ref, ZONE_CONTAINER* area_to_test )
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{
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// see if areas are on same layer
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if( area_ref->GetLayer() != area_to_test->GetLayer() )
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return false;
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CPolyLine* poly1 = area_ref->Outline();
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CPolyLine* poly2 = area_to_test->Outline();
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// test bounding rects
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EDA_RECT b1 = poly1->GetBoundingBox();
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EDA_RECT b2 = poly2->GetBoundingBox();
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if( ! b1.Intersects( b2 ) )
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return false;
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// now test for intersecting segments
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for( int icont1 = 0; icont1<poly1->GetContoursCount(); icont1++ )
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{
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int is1 = poly1->GetContourStart( icont1 );
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int ie1 = poly1->GetContourEnd( icont1 );
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for( int ic1 = is1; ic1<=ie1; ic1++ )
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{
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int xi1 = poly1->GetX( ic1 );
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int yi1 = poly1->GetY( ic1 );
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int xf1, yf1;
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if( ic1 < ie1 )
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{
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xf1 = poly1->GetX( ic1 + 1 );
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yf1 = poly1->GetY( ic1 + 1 );
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}
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else
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{
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xf1 = poly1->GetX( is1 );
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yf1 = poly1->GetY( is1 );
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}
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for( int icont2 = 0; icont2<poly2->GetContoursCount(); icont2++ )
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{
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int is2 = poly2->GetContourStart( icont2 );
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int ie2 = poly2->GetContourEnd( icont2 );
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for( int ic2 = is2; ic2<=ie2; ic2++ )
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{
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int xi2 = poly2->GetX( ic2 );
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int yi2 = poly2->GetY( ic2 );
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int xf2, yf2;
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if( ic2 < ie2 )
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{
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xf2 = poly2->GetX( ic2 + 1 );
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yf2 = poly2->GetY( ic2 + 1 );
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}
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else
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{
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xf2 = poly2->GetX( is2 );
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yf2 = poly2->GetY( is2 );
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}
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bool intersect = FindSegmentIntersections( xi1, yi1, xf1, yf1,
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xi2, yi2, xf2, yf2 );
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if( intersect )
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return true;
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}
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}
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}
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}
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// If a contour is inside an other contour, no segments intersects, but the zones
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// can be combined if a corner is inside an outline (only one corner is enought)
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for( int ic2 = 0; ic2 < poly2->GetCornersCount(); ic2++ )
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{
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int x = poly2->GetX( ic2 );
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int y = poly2->GetY( ic2 );
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if( poly1->TestPointInside( x, y ) )
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{
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return true;
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}
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}
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for( int ic1 = 0; ic1 < poly1->GetCornersCount(); ic1++ )
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{
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int x = poly1->GetX( ic1 );
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int y = poly1->GetY( ic1 );
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if( poly2->TestPointInside( x, y ) )
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{
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return true;
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}
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}
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return false;
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}
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bool BOARD::CombineAreas( PICKED_ITEMS_LIST* aDeletedList, ZONE_CONTAINER* area_ref,
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ZONE_CONTAINER* area_to_combine )
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{
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if( area_ref == area_to_combine )
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{
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wxASSERT( 0 );
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return false;
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}
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SHAPE_POLY_SET mergedOutlines = ConvertPolyListToPolySet( area_ref->Outline()->m_CornersList );
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SHAPE_POLY_SET areaToMergePoly = ConvertPolyListToPolySet( area_to_combine->Outline()->m_CornersList );
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mergedOutlines.BooleanAdd( areaToMergePoly );
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mergedOutlines.Simplify();
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// We should have one polygon with hole
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// We can have 2 polygons with hole, if the 2 initial polygons have only one common corner
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// and therefore cannot be merged (they are dectected as intersecting)
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// but we should never have more than 2 polys
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if( mergedOutlines.OutlineCount() > 2 )
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{
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wxLogMessage(wxT("BOARD::CombineAreas error: more than 2 polys after merging") );
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return false;
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}
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if( mergedOutlines.OutlineCount() > 1 )
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return false;
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area_ref->Outline()->m_CornersList = ConvertPolySetToPolyList( mergedOutlines );
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RemoveArea( aDeletedList, area_to_combine );
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area_ref->SetLocalFlags( 1 );
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area_ref->Outline()->Hatch();
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return true;
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}
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int BOARD::Test_Drc_Areas_Outlines_To_Areas_Outlines( ZONE_CONTAINER* aArea_To_Examine,
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bool aCreate_Markers )
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{
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int nerrors = 0;
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// iterate through all areas
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for( int ia = 0; ia < GetAreaCount(); ia++ )
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{
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ZONE_CONTAINER* Area_Ref = GetArea( ia );
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CPolyLine* refSmoothedPoly = Area_Ref->GetSmoothedPoly();
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if( !Area_Ref->IsOnCopperLayer() )
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continue;
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// When testing only a single area, skip all others
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if( aArea_To_Examine && (aArea_To_Examine != Area_Ref) )
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continue;
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for( int ia2 = 0; ia2 < GetAreaCount(); ia2++ )
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{
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ZONE_CONTAINER* area_to_test = GetArea( ia2 );
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CPolyLine* testSmoothedPoly = area_to_test->GetSmoothedPoly();
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if( Area_Ref == area_to_test )
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continue;
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// test for same layer
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if( Area_Ref->GetLayer() != area_to_test->GetLayer() )
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continue;
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// Test for same net
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if( Area_Ref->GetNetCode() == area_to_test->GetNetCode() && Area_Ref->GetNetCode() >= 0 )
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continue;
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// test for different priorities
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if( Area_Ref->GetPriority() != area_to_test->GetPriority() )
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continue;
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// test for different types
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if( Area_Ref->GetIsKeepout() != area_to_test->GetIsKeepout() )
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continue;
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// Examine a candidate zone: compare area_to_test to Area_Ref
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// Get clearance used in zone to zone test. The policy used to
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// obtain that value is now part of the zone object itself by way of
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// ZONE_CONTAINER::GetClearance().
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int zone2zoneClearance = Area_Ref->GetClearance( area_to_test );
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// Keepout areas have no clearance, so set zone2zoneClearance to 1
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// ( zone2zoneClearance = 0 can create problems in test functions)
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if( Area_Ref->GetIsKeepout() )
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zone2zoneClearance = 1;
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// test for some corners of Area_Ref inside area_to_test
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for( int ic = 0; ic < refSmoothedPoly->GetCornersCount(); ic++ )
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{
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int x = refSmoothedPoly->GetX( ic );
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int y = refSmoothedPoly->GetY( ic );
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if( testSmoothedPoly->TestPointInside( x, y ) )
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{
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// COPPERAREA_COPPERAREA error: copper area ref corner inside copper area
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if( aCreate_Markers )
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{
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wxString msg1 = Area_Ref->GetSelectMenuText();
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wxString msg2 = area_to_test->GetSelectMenuText();
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MARKER_PCB* marker = new MARKER_PCB( COPPERAREA_INSIDE_COPPERAREA,
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wxPoint( x, y ),
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msg1, wxPoint( x, y ),
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msg2, wxPoint( x, y ) );
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Add( marker );
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}
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nerrors++;
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}
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}
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// test for some corners of area_to_test inside Area_Ref
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for( int ic2 = 0; ic2 < testSmoothedPoly->GetCornersCount(); ic2++ )
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{
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int x = testSmoothedPoly->GetX( ic2 );
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int y = testSmoothedPoly->GetY( ic2 );
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if( refSmoothedPoly->TestPointInside( x, y ) )
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{
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// COPPERAREA_COPPERAREA error: copper area corner inside copper area ref
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if( aCreate_Markers )
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{
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wxString msg1 = area_to_test->GetSelectMenuText();
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wxString msg2 = Area_Ref->GetSelectMenuText();
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MARKER_PCB* marker = new MARKER_PCB( COPPERAREA_INSIDE_COPPERAREA,
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wxPoint( x, y ),
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msg1, wxPoint( x, y ),
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msg2, wxPoint( x, y ) );
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Add( marker );
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}
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nerrors++;
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}
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}
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// now test spacing between areas
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for( int icont = 0; icont < refSmoothedPoly->GetContoursCount(); icont++ )
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{
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int ic_start = refSmoothedPoly->GetContourStart( icont );
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int ic_end = refSmoothedPoly->GetContourEnd( icont );
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for( int ic = ic_start; ic<=ic_end; ic++ )
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{
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int ax1 = refSmoothedPoly->GetX( ic );
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int ay1 = refSmoothedPoly->GetY( ic );
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int ax2, ay2;
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if( ic == ic_end )
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{
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ax2 = refSmoothedPoly->GetX( ic_start );
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ay2 = refSmoothedPoly->GetY( ic_start );
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}
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else
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{
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ax2 = refSmoothedPoly->GetX( ic + 1 );
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ay2 = refSmoothedPoly->GetY( ic + 1 );
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}
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for( int icont2 = 0; icont2 < testSmoothedPoly->GetContoursCount(); icont2++ )
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{
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int ic_start2 = testSmoothedPoly->GetContourStart( icont2 );
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int ic_end2 = testSmoothedPoly->GetContourEnd( icont2 );
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for( int ic2 = ic_start2; ic2<=ic_end2; ic2++ )
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{
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int bx1 = testSmoothedPoly->GetX( ic2 );
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int by1 = testSmoothedPoly->GetY( ic2 );
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int bx2, by2;
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if( ic2 == ic_end2 )
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{
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bx2 = testSmoothedPoly->GetX( ic_start2 );
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by2 = testSmoothedPoly->GetY( ic_start2 );
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}
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else
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{
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bx2 = testSmoothedPoly->GetX( ic2 + 1 );
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by2 = testSmoothedPoly->GetY( ic2 + 1 );
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}
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int x, y;
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int d = GetClearanceBetweenSegments( bx1, by1, bx2, by2,
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0,
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ax1, ay1, ax2, ay2,
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0,
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zone2zoneClearance,
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&x, &y );
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if( d < zone2zoneClearance )
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{
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// COPPERAREA_COPPERAREA error : intersect or too close
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if( aCreate_Markers )
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{
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wxString msg1 = Area_Ref->GetSelectMenuText();
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wxString msg2 = area_to_test->GetSelectMenuText();
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MARKER_PCB* marker = new MARKER_PCB( COPPERAREA_CLOSE_TO_COPPERAREA,
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wxPoint( x, y ),
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msg1, wxPoint( x, y ),
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msg2, wxPoint( x, y ) );
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Add( marker );
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}
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nerrors++;
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}
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}
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}
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}
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}
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}
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}
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return nerrors;
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}
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bool DRC::doEdgeZoneDrc( ZONE_CONTAINER* aArea, int aCornerIndex )
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{
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if( !aArea->IsOnCopperLayer() ) // Cannot have a Drc error if not on copper layer
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return true;
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wxPoint start = aArea->GetCornerPosition( aCornerIndex );
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wxPoint end;
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// Search the end point of the edge starting at aCornerIndex
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if( aArea->Outline()->m_CornersList[aCornerIndex].end_contour == false
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&& aCornerIndex < (aArea->GetNumCorners() - 1) )
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{
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end = aArea->GetCornerPosition( aCornerIndex + 1 );
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}
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|
else // aCornerIndex is the last corner of an outline.
|
|
// the corresponding end point of the segment is the first corner of the outline
|
|
{
|
|
int ii = aCornerIndex - 1;
|
|
end = aArea->GetCornerPosition( ii );
|
|
|
|
while( ii >= 0 )
|
|
{
|
|
if( aArea->Outline()->m_CornersList[ii].end_contour )
|
|
break;
|
|
|
|
end = aArea->GetCornerPosition( ii );
|
|
ii--;
|
|
}
|
|
}
|
|
|
|
// iterate through all areas
|
|
for( int ia2 = 0; ia2 < m_pcb->GetAreaCount(); ia2++ )
|
|
{
|
|
ZONE_CONTAINER* area_to_test = m_pcb->GetArea( ia2 );
|
|
int zone_clearance = std::max( area_to_test->GetZoneClearance(),
|
|
aArea->GetZoneClearance() );
|
|
|
|
// test for same layer
|
|
if( area_to_test->GetLayer() != aArea->GetLayer() )
|
|
continue;
|
|
|
|
// Test for same net
|
|
if( ( aArea->GetNetCode() == area_to_test->GetNetCode() ) && (aArea->GetNetCode() >= 0) )
|
|
continue;
|
|
|
|
// test for same priority
|
|
if( area_to_test->GetPriority() != aArea->GetPriority() )
|
|
continue;
|
|
|
|
// test for same type
|
|
if( area_to_test->GetIsKeepout() != aArea->GetIsKeepout() )
|
|
continue;
|
|
|
|
// For keepout, there is no clearance, so use a minimal value for it
|
|
// use 1, not 0 as value to avoid some issues in tests
|
|
if( area_to_test->GetIsKeepout() )
|
|
zone_clearance = 1;
|
|
|
|
// test for ending line inside area_to_test
|
|
if( area_to_test->Outline()->TestPointInside( end.x, end.y ) )
|
|
{
|
|
// COPPERAREA_COPPERAREA error: corner inside copper area
|
|
m_currentMarker = fillMarker( aArea, end,
|
|
COPPERAREA_INSIDE_COPPERAREA,
|
|
m_currentMarker );
|
|
return false;
|
|
}
|
|
|
|
// now test spacing between areas
|
|
int ax1 = start.x;
|
|
int ay1 = start.y;
|
|
int ax2 = end.x;
|
|
int ay2 = end.y;
|
|
|
|
for( int icont2 = 0; icont2 < area_to_test->Outline()->GetContoursCount(); icont2++ )
|
|
{
|
|
int ic_start2 = area_to_test->Outline()->GetContourStart( icont2 );
|
|
int ic_end2 = area_to_test->Outline()->GetContourEnd( icont2 );
|
|
|
|
for( int ic2 = ic_start2; ic2<=ic_end2; ic2++ )
|
|
{
|
|
int bx1 = area_to_test->Outline()->GetX( ic2 );
|
|
int by1 = area_to_test->Outline()->GetY( ic2 );
|
|
int bx2, by2;
|
|
|
|
if( ic2 == ic_end2 )
|
|
{
|
|
bx2 = area_to_test->Outline()->GetX( ic_start2 );
|
|
by2 = area_to_test->Outline()->GetY( ic_start2 );
|
|
}
|
|
else
|
|
{
|
|
bx2 = area_to_test->Outline()->GetX( ic2 + 1 );
|
|
by2 = area_to_test->Outline()->GetY( ic2 + 1 );
|
|
}
|
|
|
|
int x, y; // variables containing the intersecting point coordinates
|
|
int d = GetClearanceBetweenSegments( bx1, by1, bx2, by2,
|
|
0,
|
|
ax1, ay1, ax2, ay2,
|
|
0,
|
|
zone_clearance,
|
|
&x, &y );
|
|
|
|
if( d < zone_clearance )
|
|
{
|
|
// COPPERAREA_COPPERAREA error : edge intersect or too close
|
|
m_currentMarker = fillMarker( aArea, wxPoint( x, y ),
|
|
COPPERAREA_CLOSE_TO_COPPERAREA,
|
|
m_currentMarker );
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|