926 lines
36 KiB
C++
926 lines
36 KiB
C++
/*
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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) 2004-2019 Jean-Pierre Charras, jp.charras at wanadoo.fr
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* Copyright (C) 2007 Dick Hollenbeck, dick@softplc.com
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* Copyright (C) 2019 KiCad Developers, see AUTHORS.txt for contributors.
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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 <pcb_edit_frame.h>
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#include <trigo.h>
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#include <pcbnew.h>
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#include <drc/drc.h>
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#include <class_board.h>
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#include <class_module.h>
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#include <class_track.h>
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#include <class_zone.h>
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#include <class_drawsegment.h>
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#include <class_marker_pcb.h>
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#include <math_for_graphics.h>
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#include <geometry/polygon_test_point_inside.h>
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#include <convert_basic_shapes_to_polygon.h>
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#include <board_commit.h>
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#include <math/util.h> // for KiROUND
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#include <geometry/shape_rect.h>
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#include <macros.h>
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/**
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* compare 2 convex polygons and return true if distance > aDist (if no error DRC)
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* i.e if for each edge of the first polygon distance from each edge of the other polygon
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* is >= aDist
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*/
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bool poly2polyDRC( wxPoint* aTref, int aTrefCount, wxPoint* aTtest, int aTtestCount,
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int aAllowedDist, int* actualDist )
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{
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/* Test if one polygon is contained in the other and thus the polygon overlap.
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* This case is not covered by the following check if one polygone is
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* completely contained in the other (because edges don't intersect)!
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*/
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if( TestPointInsidePolygon( aTref, aTrefCount, aTtest[0] ) )
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{
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*actualDist = 0;
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return false;
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}
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if( TestPointInsidePolygon( aTtest, aTtestCount, aTref[0] ) )
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{
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*actualDist = 0;
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return false;
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}
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for( int ii = 0, jj = aTrefCount - 1; ii < aTrefCount; jj = ii, ii++ )
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{
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// for all edges in aTref
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for( int kk = 0, ll = aTtestCount - 1; kk < aTtestCount; ll = kk, kk++ )
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{
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// for all edges in aTtest
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double d;
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int intersect = TestForIntersectionOfStraightLineSegments(
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aTref[ii].x, aTref[ii].y, aTref[jj].x, aTref[jj].y,
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aTtest[kk].x, aTtest[kk].y, aTtest[ll].x, aTtest[ll].y,
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nullptr, nullptr, &d );
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if( intersect )
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{
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*actualDist = 0;
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return false;
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}
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if( d < aAllowedDist )
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{
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*actualDist = KiROUND( d );
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return false;
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}
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}
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}
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return true;
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}
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/*
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* compare a trapezoid (can be rectangle) and a segment and return true if distance > aDist
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*/
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bool poly2segmentDRC( wxPoint* aTref, int aTrefCount, wxPoint aSegStart, wxPoint aSegEnd,
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int aDist, int* aActual )
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{
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/* Test if the segment is contained in the polygon.
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* This case is not covered by the following check if the segment is
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* completely contained in the polygon (because edges don't intersect)!
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*/
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if( TestPointInsidePolygon( aTref, aTrefCount, aSegStart ) )
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{
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*aActual = 0;
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return false;
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}
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for( int ii = 0, jj = aTrefCount-1; ii < aTrefCount; jj = ii, ii++ )
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{ // for all edges in polygon
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double d;
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if( TestForIntersectionOfStraightLineSegments( aTref[ii].x, aTref[ii].y, aTref[jj].x,
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aTref[jj].y, aSegStart.x, aSegStart.y,
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aSegEnd.x, aSegEnd.y, NULL, NULL, &d ) )
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{
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*aActual = 0;
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return false;
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}
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if( d < aDist )
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{
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*aActual = KiROUND( d );
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return false;
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}
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}
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return true;
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}
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void DRC::doTrackDrc( TRACK* aRefSeg, TRACKS::iterator aStartIt, TRACKS::iterator aEndIt,
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bool aTestZones )
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{
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BOARD_DESIGN_SETTINGS& dsnSettings = m_pcb->GetDesignSettings();
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wxString msg;
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SEG refSeg( aRefSeg->GetStart(), aRefSeg->GetEnd() );
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LSET layerMask = aRefSeg->GetLayerSet();
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EDA_RECT refSegBB = aRefSeg->GetBoundingBox();
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int refSegWidth = aRefSeg->GetWidth();
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/******************************************/
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/* Phase 0 : via DRC tests : */
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/******************************************/
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if( aRefSeg->Type() == PCB_VIA_T )
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{
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VIA *refvia = static_cast<VIA*>( aRefSeg );
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// test if the via size is smaller than minimum
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if( refvia->GetViaType() == VIATYPE::MICROVIA )
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{
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if( refvia->GetWidth() < dsnSettings.m_MicroViasMinSize )
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{
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DRC_ITEM* drcItem = new DRC_ITEM( DRCE_TOO_SMALL_MICROVIA );
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msg.Printf( drcItem->GetErrorText() + _( " (board minimum %s; actual %s)" ),
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MessageTextFromValue( userUnits(), dsnSettings.m_MicroViasMinSize, true ),
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MessageTextFromValue( userUnits(), refvia->GetWidth(), true ) );
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drcItem->SetErrorMessage( msg );
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drcItem->SetItems( refvia );
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MARKER_PCB* marker = new MARKER_PCB( drcItem, refvia->GetPosition() );
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addMarkerToPcb( marker );
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}
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if( refvia->GetDrillValue() < dsnSettings.m_MicroViasMinDrill )
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{
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DRC_ITEM* drcItem = new DRC_ITEM( DRCE_TOO_SMALL_MICROVIA_DRILL );
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msg.Printf( drcItem->GetErrorText() + _( " (board minimum %s; actual %s)" ),
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MessageTextFromValue( userUnits(), dsnSettings.m_MicroViasMinDrill, true ),
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MessageTextFromValue( userUnits(), refvia->GetDrillValue(), true ) );
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drcItem->SetErrorMessage( msg );
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drcItem->SetItems( refvia );
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MARKER_PCB* marker = new MARKER_PCB( drcItem, refvia->GetPosition() );
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addMarkerToPcb( marker );
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}
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}
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else
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{
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if( refvia->GetWidth() < dsnSettings.m_ViasMinSize )
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{
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DRC_ITEM* drcItem = new DRC_ITEM( DRCE_TOO_SMALL_VIA );
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msg.Printf( drcItem->GetErrorText() + _( " (board minimum %s; actual %s)" ),
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MessageTextFromValue( userUnits(), dsnSettings.m_ViasMinSize, true ),
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MessageTextFromValue( userUnits(), refvia->GetWidth(), true ) );
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drcItem->SetErrorMessage( msg );
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drcItem->SetItems( refvia );
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MARKER_PCB* marker = new MARKER_PCB( drcItem, refvia->GetPosition() );
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addMarkerToPcb( marker );
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}
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if( refvia->GetDrillValue() < dsnSettings.m_ViasMinDrill )
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{
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DRC_ITEM* drcItem = new DRC_ITEM( DRCE_TOO_SMALL_VIA_DRILL );
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msg.Printf( drcItem->GetErrorText() + _( " (board minimum %s; actual %s)" ),
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MessageTextFromValue( userUnits(), dsnSettings.m_ViasMinDrill, true ),
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MessageTextFromValue( userUnits(), refvia->GetDrillValue(), true ) );
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drcItem->SetErrorMessage( msg );
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drcItem->SetItems( refvia );
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MARKER_PCB* marker = new MARKER_PCB( drcItem, refvia->GetPosition() );
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addMarkerToPcb( marker );
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}
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}
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// test if via's hole is bigger than its diameter
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// This test is necessary since the via hole size and width can be modified
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// and a default via hole can be bigger than some vias sizes
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if( refvia->GetDrillValue() > refvia->GetWidth() )
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{
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DRC_ITEM* drcItem = new DRC_ITEM( DRCE_VIA_HOLE_BIGGER );
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msg.Printf( drcItem->GetErrorText() + _( " (diameter %s; drill %s)" ),
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MessageTextFromValue( userUnits(), refvia->GetWidth(), true ),
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MessageTextFromValue( userUnits(), refvia->GetDrillValue(), true ) );
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drcItem->SetErrorMessage( msg );
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drcItem->SetItems( refvia );
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MARKER_PCB* marker = new MARKER_PCB( drcItem, refvia->GetPosition() );
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addMarkerToPcb( marker );
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}
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// test if the type of via is allowed due to design rules
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if( refvia->GetViaType() == VIATYPE::MICROVIA && !dsnSettings.m_MicroViasAllowed )
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{
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DRC_ITEM* drcItem = new DRC_ITEM( DRCE_MICRO_VIA_NOT_ALLOWED );
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msg.Printf( drcItem->GetErrorText() + _( " (board design rule constraints)" ) );
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drcItem->SetErrorMessage( msg );
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drcItem->SetItems( refvia );
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MARKER_PCB* marker = new MARKER_PCB( drcItem, refvia->GetPosition() );
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addMarkerToPcb( marker );
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}
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// test if the type of via is allowed due to design rules
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if( refvia->GetViaType() == VIATYPE::BLIND_BURIED && !dsnSettings.m_BlindBuriedViaAllowed )
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{
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DRC_ITEM* drcItem = new DRC_ITEM( DRCE_BURIED_VIA_NOT_ALLOWED );
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msg.Printf( drcItem->GetErrorText() + _( " (board design rule constraints)" ) );
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drcItem->SetErrorMessage( msg );
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drcItem->SetItems( refvia );
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MARKER_PCB* marker = new MARKER_PCB( drcItem, refvia->GetPosition() );
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addMarkerToPcb( marker );
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}
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// For microvias: test if they are blind vias and only between 2 layers
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// because they are used for very small drill size and are drill by laser
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// and **only one layer** can be drilled
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if( refvia->GetViaType() == VIATYPE::MICROVIA )
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{
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PCB_LAYER_ID layer1, layer2;
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bool err = true;
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refvia->LayerPair( &layer1, &layer2 );
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if( layer1 > layer2 )
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std::swap( layer1, layer2 );
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if( layer2 == B_Cu && layer1 == dsnSettings.GetCopperLayerCount() - 2 )
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err = false;
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else if( layer1 == F_Cu && layer2 == In1_Cu )
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err = false;
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if( err )
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{
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DRC_ITEM* drcItem = new DRC_ITEM( DRCE_MICRO_VIA_INCORRECT_LAYER_PAIR );
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msg.Printf( drcItem->GetErrorText() + _( " (%s and %s not adjacent)" ),
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m_pcb->GetLayerName( layer1 ),
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m_pcb->GetLayerName( layer2 ) );
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drcItem->SetErrorMessage( msg );
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drcItem->SetItems( refvia );
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MARKER_PCB* marker = new MARKER_PCB( drcItem, refvia->GetPosition() );
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addMarkerToPcb( marker );
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}
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}
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}
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else // This is a track segment
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{
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if( refSegWidth < dsnSettings.m_TrackMinWidth )
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{
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wxPoint refsegMiddle = ( aRefSeg->GetStart() + aRefSeg->GetEnd() ) / 2;
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DRC_ITEM* drcItem = new DRC_ITEM( DRCE_TOO_SMALL_TRACK_WIDTH );
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msg.Printf( drcItem->GetErrorText() + _( " (board minimum %s; actual %s)" ),
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MessageTextFromValue( userUnits(), dsnSettings.m_TrackMinWidth, true ),
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MessageTextFromValue( userUnits(), refSegWidth, true ) );
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drcItem->SetErrorMessage( msg );
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drcItem->SetItems( aRefSeg );
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MARKER_PCB* marker = new MARKER_PCB( drcItem, refsegMiddle );
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addMarkerToPcb( marker );
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}
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}
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/******************************************/
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/* Phase 1 : test DRC track to pads : */
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/******************************************/
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// Compute the min distance to pads
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for( MODULE* mod : m_pcb->Modules() )
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{
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// Don't preflight at the module level. Getting a module's bounding box goes
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// through all its pads anyway (so it's no faster), and also all its drawings
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// (so it's in fact slower).
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for( D_PAD* pad : mod->Pads() )
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{
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// Preflight based on bounding boxes.
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EDA_RECT inflatedBB = refSegBB;
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inflatedBB.Inflate( pad->GetBoundingRadius() + aRefSeg->GetClearance( pad, nullptr ) );
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if( !inflatedBB.Contains( pad->GetPosition() ) )
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continue;
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if( !( pad->GetLayerSet() & layerMask ).any() )
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continue;
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// No need to check pads with the same net as the refSeg.
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if( pad->GetNetCode() && aRefSeg->GetNetCode() == pad->GetNetCode() )
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continue;
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if( pad->GetDrillSize().x > 0 )
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{
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wxString clearanceSource;
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int minClearance = aRefSeg->GetClearance( nullptr, &clearanceSource );
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/* Treat an oval hole as a line segment along the hole's major axis,
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* shortened by half its minor axis.
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* A circular hole is just a degenerate case of an oval hole.
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*/
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wxPoint slotStart, slotEnd;
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int slotWidth;
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pad->GetOblongGeometry( pad->GetDrillSize(), &slotStart, &slotEnd, &slotWidth );
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slotStart += pad->GetPosition();
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slotEnd += pad->GetPosition();
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SEG slotSeg( slotStart, slotEnd );
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int widths = ( slotWidth + refSegWidth ) / 2;
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int center2centerAllowed = minClearance + widths;
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// Avoid square-roots if possible (for performance)
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SEG::ecoord center2center_squared = refSeg.SquaredDistance( slotSeg );
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if( center2center_squared < SEG::Square( center2centerAllowed ) )
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{
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int actual = std::max( 0.0, sqrt( center2center_squared ) - widths );
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DRC_ITEM* drcItem = new DRC_ITEM( DRCE_TRACK_NEAR_THROUGH_HOLE );
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msg.Printf( drcItem->GetErrorText() + _( " (%s %s; actual %s)" ),
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clearanceSource,
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MessageTextFromValue( userUnits(), minClearance, true ),
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MessageTextFromValue( userUnits(), actual, true ) );
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drcItem->SetErrorMessage( msg );
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drcItem->SetItems( aRefSeg, pad );
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MARKER_PCB* marker = new MARKER_PCB( drcItem, getLocation( aRefSeg, slotSeg ) );
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addMarkerToPcb( marker );
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if( !m_reportAllTrackErrors )
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return;
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}
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}
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wxString clearanceSource;
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int minClearance = aRefSeg->GetClearance( pad, &clearanceSource );
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int actual;
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if( !checkClearanceSegmToPad( refSeg, refSegWidth, pad, minClearance, &actual ) )
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{
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SEG padSeg( pad->GetPosition(), pad->GetPosition() );
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DRC_ITEM* drcItem = new DRC_ITEM( DRCE_TRACK_NEAR_PAD );
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msg.Printf( drcItem->GetErrorText() + _( " (%s %s; actual %s)" ),
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clearanceSource,
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MessageTextFromValue( userUnits(), minClearance, true ),
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MessageTextFromValue( userUnits(), actual, true ) );
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drcItem->SetErrorMessage( msg );
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drcItem->SetItems( aRefSeg, pad );
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MARKER_PCB* marker = new MARKER_PCB( drcItem, getLocation( aRefSeg, padSeg ) );
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addMarkerToPcb( marker );
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if( !m_reportAllTrackErrors )
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return;
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}
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}
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}
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/***********************************************/
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/* Phase 2: test DRC with other track segments */
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/***********************************************/
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// Test the reference segment with other track segments
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for( auto it = aStartIt; it != aEndIt; it++ )
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{
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TRACK* track = *it;
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// No problem if segments have the same net code:
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if( aRefSeg->GetNetCode() == track->GetNetCode() )
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continue;
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// No problem if tracks are on different layers:
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if( !( layerMask & track->GetLayerSet() ).any() )
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continue;
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// Preflight based on inflated bounding boxes:
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EDA_RECT trackBB = track->GetBoundingBox();
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trackBB.Inflate( aRefSeg->GetClearance( track, nullptr ) );
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if( !trackBB.Intersects( refSegBB ) )
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continue;
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wxString clearanceSource;
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int minClearance = aRefSeg->GetClearance( track, &clearanceSource );
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SEG trackSeg( track->GetStart(), track->GetEnd() );
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int widths = ( refSegWidth + track->GetWidth() ) / 2;
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int center2centerAllowed = minClearance + widths;
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// Avoid square-roots if possible (for performance)
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SEG::ecoord center2center_squared = refSeg.SquaredDistance( trackSeg );
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OPT_VECTOR2I intersection = refSeg.Intersect( trackSeg );
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// Check two tracks crossing first as it reports a DRCE without distances
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if( intersection )
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{
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DRC_ITEM* drcItem = new DRC_ITEM( DRCE_TRACKS_CROSSING );
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drcItem->SetErrorMessage( msg );
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drcItem->SetItems( aRefSeg, track );
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MARKER_PCB* marker = new MARKER_PCB( drcItem, (wxPoint) intersection.get() );
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addMarkerToPcb( marker );
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if( !m_reportAllTrackErrors )
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return;
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}
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else if( center2center_squared < SEG::Square( center2centerAllowed ) )
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{
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int errorCode = DRCE_TRACK_ENDS;
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if( aRefSeg->Type() == PCB_VIA_T && track->Type() == PCB_VIA_T )
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errorCode = DRCE_VIA_NEAR_VIA;
|
|
else if( aRefSeg->Type() == PCB_VIA_T || track->Type() == PCB_VIA_T )
|
|
errorCode = DRCE_VIA_NEAR_TRACK;
|
|
else if( refSeg.ApproxParallel( trackSeg ) )
|
|
errorCode = DRCE_TRACK_SEGMENTS_TOO_CLOSE;
|
|
|
|
int actual = std::max( 0.0, sqrt( center2center_squared ) - widths );
|
|
DRC_ITEM* drcItem = new DRC_ITEM( errorCode );
|
|
|
|
msg.Printf( drcItem->GetErrorText() + _( " (%s %s; actual %s)" ),
|
|
clearanceSource,
|
|
MessageTextFromValue( userUnits(), minClearance, true ),
|
|
MessageTextFromValue( userUnits(), actual, true ) );
|
|
|
|
drcItem->SetErrorMessage( msg );
|
|
drcItem->SetItems( aRefSeg, track );
|
|
|
|
MARKER_PCB* marker = new MARKER_PCB( drcItem, getLocation( aRefSeg, trackSeg ) );
|
|
addMarkerToPcb( marker );
|
|
|
|
if( !m_reportAllTrackErrors )
|
|
return;
|
|
}
|
|
}
|
|
|
|
/***************************************/
|
|
/* Phase 3: test DRC with copper zones */
|
|
/***************************************/
|
|
// Can be *very* time consumming.
|
|
if( aTestZones )
|
|
{
|
|
SEG testSeg( aRefSeg->GetStart(), aRefSeg->GetEnd() );
|
|
|
|
for( ZONE_CONTAINER* zone : m_pcb->Zones() )
|
|
{
|
|
if( zone->GetFilledPolysList().IsEmpty() || zone->GetIsKeepout() )
|
|
continue;
|
|
|
|
if( !( layerMask & zone->GetLayerSet() ).any() )
|
|
continue;
|
|
|
|
if( zone->GetNetCode() && zone->GetNetCode() == aRefSeg->GetNetCode() )
|
|
continue;
|
|
|
|
wxString clearanceSource;
|
|
int minClearance = aRefSeg->GetClearance( zone, &clearanceSource );
|
|
int widths = refSegWidth / 2;
|
|
int center2centerAllowed = minClearance + widths;
|
|
SHAPE_POLY_SET* outline = const_cast<SHAPE_POLY_SET*>( &zone->GetFilledPolysList() );
|
|
|
|
SEG::ecoord center2center_squared = outline->SquaredDistance( testSeg );
|
|
|
|
// to avoid false positive, due to rounding issues and approxiamtions
|
|
// in distance and clearance calculations, use a small threshold for distance
|
|
// (1 micron)
|
|
#define THRESHOLD_DIST Millimeter2iu( 0.001 )
|
|
|
|
if( center2center_squared + THRESHOLD_DIST < SEG::Square( center2centerAllowed ) )
|
|
{
|
|
int actual = std::max( 0.0, sqrt( center2center_squared ) - widths );
|
|
DRC_ITEM* drcItem = new DRC_ITEM( DRCE_TRACK_NEAR_ZONE );
|
|
|
|
msg.Printf( drcItem->GetErrorText() + _( " (%s %s; actual %s)" ),
|
|
clearanceSource,
|
|
MessageTextFromValue( userUnits(), minClearance, true ),
|
|
MessageTextFromValue( userUnits(), actual, true ) );
|
|
|
|
drcItem->SetErrorMessage( msg );
|
|
drcItem->SetItems( aRefSeg, zone );
|
|
|
|
MARKER_PCB* marker = new MARKER_PCB( drcItem, getLocation( aRefSeg, zone ) );
|
|
addMarkerToPcb( marker );
|
|
}
|
|
}
|
|
}
|
|
|
|
/***********************************************/
|
|
/* Phase 4: test DRC with to board edge */
|
|
/***********************************************/
|
|
{
|
|
SEG testSeg( aRefSeg->GetStart(), aRefSeg->GetEnd() );
|
|
|
|
wxString clearanceSource;
|
|
int minClearance = aRefSeg->GetClearance( nullptr, &clearanceSource );
|
|
|
|
if( dsnSettings.m_CopperEdgeClearance > minClearance )
|
|
{
|
|
minClearance = dsnSettings.m_CopperEdgeClearance;
|
|
clearanceSource = _( "board edge clearance" );
|
|
}
|
|
|
|
int halfWidth = refSegWidth / 2;
|
|
int center2centerAllowed = minClearance + halfWidth;
|
|
|
|
for( auto it = m_board_outlines.IterateSegmentsWithHoles(); it; it++ )
|
|
{
|
|
SEG::ecoord center2center_squared = testSeg.SquaredDistance( *it );
|
|
|
|
if( center2center_squared < SEG::Square( center2centerAllowed ) )
|
|
{
|
|
VECTOR2I pt = testSeg.NearestPoint( *it );
|
|
|
|
KICAD_T types[] = { PCB_LINE_T, EOT };
|
|
DRAWSEGMENT* edge = nullptr;
|
|
INSPECTOR_FUNC inspector =
|
|
[&] ( EDA_ITEM* item, void* testData )
|
|
{
|
|
DRAWSEGMENT* test_edge = dynamic_cast<DRAWSEGMENT*>( item );
|
|
|
|
if( !test_edge || test_edge->GetLayer() != Edge_Cuts )
|
|
return SEARCH_RESULT::CONTINUE;
|
|
|
|
if( test_edge->HitTest( (wxPoint) pt, minClearance + halfWidth ) )
|
|
{
|
|
edge = test_edge;
|
|
return SEARCH_RESULT::QUIT;
|
|
}
|
|
|
|
return SEARCH_RESULT::CONTINUE;
|
|
};
|
|
|
|
// Best-efforts search for edge segment
|
|
BOARD::IterateForward<BOARD_ITEM*>( m_pcb->Drawings(), inspector, nullptr, types );
|
|
|
|
int actual = std::max( 0.0, sqrt( center2center_squared ) - halfWidth );
|
|
DRC_ITEM* drcItem = new DRC_ITEM( DRCE_TRACK_NEAR_EDGE );
|
|
|
|
msg.Printf( drcItem->GetErrorText() + _( " (%s %s; actual %s)" ),
|
|
clearanceSource,
|
|
MessageTextFromValue( userUnits(), minClearance, true ),
|
|
MessageTextFromValue( userUnits(), actual, true ) );
|
|
|
|
drcItem->SetErrorMessage( msg );
|
|
drcItem->SetItems( aRefSeg, edge );
|
|
|
|
MARKER_PCB* marker = new MARKER_PCB( drcItem, (wxPoint) pt );
|
|
addMarkerToPcb( marker );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
bool DRC::checkClearancePadToPad( D_PAD* aRefPad, D_PAD* aPad, int aMinClearance, int* aActual )
|
|
{
|
|
// relativePadPos is the aPad shape position relative to the aRefPad shape position
|
|
wxPoint relativePadPos = aPad->ShapePos() - aRefPad->ShapePos();
|
|
|
|
int center2center = KiROUND( EuclideanNorm( relativePadPos ) );
|
|
|
|
// Quick test: Clearance is OK if the bounding circles are further away than aMinClearance
|
|
if( center2center - aRefPad->GetBoundingRadius() - aPad->GetBoundingRadius() >= aMinClearance )
|
|
return true;
|
|
|
|
/* Here, pads are near and DRC depends on the pad shapes. We must compare distance using
|
|
* a fine shape analysis.
|
|
* Because a circle or oval shape is the easier shape to test, swap pads to have aRefPad be
|
|
* a PAD_SHAPE_CIRCLE or PAD_SHAPE_OVAL. If aRefPad = TRAPEZOID and aPad = RECT, also swap.
|
|
*/
|
|
bool swap_pads;
|
|
swap_pads = false;
|
|
|
|
// swap pads to make comparisons easier
|
|
// Note also a ROUNDRECT pad with a corner radius = r can be considered as
|
|
// a smaller RECT (size - 2*r) with a clearance increased by r
|
|
// priority is aRefPad = ROUND then OVAL then RECT/ROUNDRECT then other
|
|
if( aRefPad->GetShape() != aPad->GetShape() && aRefPad->GetShape() != PAD_SHAPE_CIRCLE )
|
|
{
|
|
// pad ref shape is here oval, rect, roundrect, chamfered rect, trapezoid or custom
|
|
switch( aPad->GetShape() )
|
|
{
|
|
case PAD_SHAPE_CIRCLE:
|
|
swap_pads = true;
|
|
break;
|
|
|
|
case PAD_SHAPE_OVAL:
|
|
swap_pads = true;
|
|
break;
|
|
|
|
case PAD_SHAPE_RECT:
|
|
case PAD_SHAPE_ROUNDRECT:
|
|
if( aRefPad->GetShape() != PAD_SHAPE_OVAL )
|
|
swap_pads = true;
|
|
break;
|
|
|
|
case PAD_SHAPE_TRAPEZOID:
|
|
case PAD_SHAPE_CHAMFERED_RECT:
|
|
case PAD_SHAPE_CUSTOM:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if( swap_pads )
|
|
{
|
|
std::swap( aRefPad, aPad );
|
|
relativePadPos = -relativePadPos;
|
|
}
|
|
|
|
bool diag = true;
|
|
|
|
if( ( aRefPad->GetShape() == PAD_SHAPE_CIRCLE || aRefPad->GetShape() == PAD_SHAPE_OVAL ) )
|
|
{
|
|
/* Treat an oval pad as a line segment along the hole's major axis,
|
|
* shortened by half its minor axis.
|
|
* A circular pad is just a degenerate case of an oval hole.
|
|
*/
|
|
wxPoint refPadStart, refPadEnd;
|
|
int refPadWidth;
|
|
|
|
aRefPad->GetOblongGeometry( aRefPad->GetSize(), &refPadStart, &refPadEnd, &refPadWidth );
|
|
refPadStart += aRefPad->ShapePos();
|
|
refPadEnd += aRefPad->ShapePos();
|
|
|
|
SEG refPadSeg( refPadStart, refPadEnd );
|
|
diag = checkClearanceSegmToPad( refPadSeg, refPadWidth, aPad, aMinClearance, aActual );
|
|
}
|
|
else
|
|
{
|
|
int dist_extra = 0;
|
|
|
|
// corners of aRefPad (used only for rect/roundrect/trap pad)
|
|
wxPoint polyref[4];
|
|
// corners of aRefPad (used only for custom pad)
|
|
SHAPE_POLY_SET polysetref;
|
|
|
|
if( aRefPad->GetShape() == PAD_SHAPE_ROUNDRECT )
|
|
{
|
|
int padRadius = aRefPad->GetRoundRectCornerRadius();
|
|
dist_extra = padRadius;
|
|
GetRoundRectCornerCenters( polyref, padRadius, wxPoint( 0, 0 ), aRefPad->GetSize(),
|
|
aRefPad->GetOrientation() );
|
|
}
|
|
else if( aRefPad->GetShape() == PAD_SHAPE_CHAMFERED_RECT )
|
|
{
|
|
BOARD* board = aRefPad->GetBoard();
|
|
int maxError = board ? board->GetDesignSettings().m_MaxError : ARC_HIGH_DEF;
|
|
|
|
// The reference pad can be rotated. Calculate the rotated coordinates.
|
|
// (note, the ref pad position is the origin of coordinates for this drc test)
|
|
int padRadius = aRefPad->GetRoundRectCornerRadius();
|
|
|
|
TransformRoundChamferedRectToPolygon( polysetref, wxPoint( 0, 0 ), aRefPad->GetSize(),
|
|
aRefPad->GetOrientation(),
|
|
padRadius, aRefPad->GetChamferRectRatio(),
|
|
aRefPad->GetChamferPositions(), maxError );
|
|
}
|
|
else if( aRefPad->GetShape() == PAD_SHAPE_CUSTOM )
|
|
{
|
|
polysetref.Append( aRefPad->GetCustomShapeAsPolygon() );
|
|
|
|
// The reference pad can be rotated. Calculate the rotated coordinates.
|
|
// (note, the ref pad position is the origin of coordinates for this drc test)
|
|
aRefPad->CustomShapeAsPolygonToBoardPosition( &polysetref, wxPoint( 0, 0 ),
|
|
aRefPad->GetOrientation() );
|
|
}
|
|
else
|
|
{
|
|
// BuildPadPolygon has meaning for rect a trapeziod shapes and returns the 4 corners.
|
|
aRefPad->BuildPadPolygon( polyref, wxSize( 0, 0 ), aRefPad->GetOrientation() );
|
|
}
|
|
|
|
// corners of aPad (used only for rect/roundrect/trap pad)
|
|
wxPoint polycompare[4];
|
|
// corners of aPad (used only custom pad)
|
|
SHAPE_POLY_SET polysetcompare;
|
|
|
|
switch( aPad->GetShape() )
|
|
{
|
|
case PAD_SHAPE_ROUNDRECT:
|
|
case PAD_SHAPE_RECT:
|
|
case PAD_SHAPE_CHAMFERED_RECT:
|
|
case PAD_SHAPE_TRAPEZOID:
|
|
case PAD_SHAPE_CUSTOM:
|
|
if( aPad->GetShape() == PAD_SHAPE_ROUNDRECT )
|
|
{
|
|
int padRadius = aPad->GetRoundRectCornerRadius();
|
|
dist_extra = padRadius;
|
|
GetRoundRectCornerCenters( polycompare, padRadius, relativePadPos, aPad->GetSize(),
|
|
aPad->GetOrientation() );
|
|
}
|
|
else if( aPad->GetShape() == PAD_SHAPE_CHAMFERED_RECT )
|
|
{
|
|
BOARD* board = aRefPad->GetBoard();
|
|
int maxError = board ? board->GetDesignSettings().m_MaxError : ARC_HIGH_DEF;
|
|
|
|
// The pad to compare can be rotated. Calculate the rotated coordinates.
|
|
// ( note, the pad to compare position is the relativePadPos for this drc test)
|
|
int padRadius = aPad->GetRoundRectCornerRadius();
|
|
|
|
TransformRoundChamferedRectToPolygon( polysetcompare, relativePadPos,
|
|
aPad->GetSize(), aPad->GetOrientation(),
|
|
padRadius, aPad->GetChamferRectRatio(),
|
|
aPad->GetChamferPositions(), maxError );
|
|
}
|
|
else if( aPad->GetShape() == PAD_SHAPE_CUSTOM )
|
|
{
|
|
polysetcompare.Append( aPad->GetCustomShapeAsPolygon() );
|
|
|
|
// The pad to compare can be rotated. Calculate the rotated coordinates.
|
|
// ( note, the pad to compare position is the relativePadPos for this drc test)
|
|
aPad->CustomShapeAsPolygonToBoardPosition( &polysetcompare, relativePadPos,
|
|
aPad->GetOrientation() );
|
|
}
|
|
else
|
|
{
|
|
aPad->BuildPadPolygon( polycompare, wxSize( 0, 0 ), aPad->GetOrientation() );
|
|
|
|
// Move aPad shape to relativePadPos
|
|
for( int ii = 0; ii < 4; ii++ )
|
|
polycompare[ii] += relativePadPos;
|
|
}
|
|
|
|
// And now test polygons: We have 3 cases:
|
|
// one poly is complex and the other is basic (has only 4 corners)
|
|
// both polys are complex
|
|
// both polys are basic (have only 4 corners) the most usual case
|
|
if( polysetref.OutlineCount() && polysetcompare.OutlineCount() == 0)
|
|
{
|
|
const SHAPE_LINE_CHAIN& refpoly = polysetref.COutline( 0 );
|
|
// And now test polygons:
|
|
if( !poly2polyDRC( (wxPoint*) &refpoly.CPoint( 0 ), refpoly.PointCount(),
|
|
polycompare, 4, aMinClearance + dist_extra, aActual ) )
|
|
{
|
|
*aActual = std::max( 0, *aActual - dist_extra );
|
|
diag = false;
|
|
}
|
|
}
|
|
else if( polysetref.OutlineCount() == 0 && polysetcompare.OutlineCount())
|
|
{
|
|
const SHAPE_LINE_CHAIN& cmppoly = polysetcompare.COutline( 0 );
|
|
// And now test polygons:
|
|
if( !poly2polyDRC((wxPoint*) &cmppoly.CPoint( 0 ), cmppoly.PointCount(),
|
|
polyref, 4, aMinClearance + dist_extra, aActual ) )
|
|
{
|
|
*aActual = std::max( 0, *aActual - dist_extra );
|
|
diag = false;
|
|
}
|
|
}
|
|
else if( polysetref.OutlineCount() && polysetcompare.OutlineCount() )
|
|
{
|
|
const SHAPE_LINE_CHAIN& refpoly = polysetref.COutline( 0 );
|
|
const SHAPE_LINE_CHAIN& cmppoly = polysetcompare.COutline( 0 );
|
|
|
|
// And now test polygons:
|
|
if( !poly2polyDRC((wxPoint*) &refpoly.CPoint( 0 ), refpoly.PointCount(),
|
|
(wxPoint*) &cmppoly.CPoint( 0 ), cmppoly.PointCount(),
|
|
aMinClearance + dist_extra, aActual ) )
|
|
{
|
|
*aActual = std::max( 0, *aActual - dist_extra );
|
|
diag = false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if( !poly2polyDRC( polyref, 4, polycompare, 4, aMinClearance + dist_extra, aActual ) )
|
|
{
|
|
*aActual = std::max( 0, *aActual - dist_extra );
|
|
diag = false;
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
wxLogDebug( wxT( "DRC::checkClearancePadToPad: unexpected pad shape %d" ), aPad->GetShape() );
|
|
break;
|
|
}
|
|
}
|
|
|
|
return diag;
|
|
}
|
|
|
|
|
|
/*
|
|
* Test if distance between a segment and a pad is > minClearance. Return the actual
|
|
* distance if it is less.
|
|
*/
|
|
bool DRC::checkClearanceSegmToPad( const SEG& refSeg, int refSegWidth, const D_PAD* pad,
|
|
int minClearance, int* aActualDist )
|
|
{
|
|
if( ( pad->GetShape() == PAD_SHAPE_CIRCLE || pad->GetShape() == PAD_SHAPE_OVAL ) )
|
|
{
|
|
/* Treat an oval pad as a line segment along the hole's major axis,
|
|
* shortened by half its minor axis.
|
|
* A circular pad is just a degenerate case of an oval hole.
|
|
*/
|
|
wxPoint padStart, padEnd;
|
|
int padWidth;
|
|
|
|
pad->GetOblongGeometry( pad->GetSize(), &padStart, &padEnd, &padWidth );
|
|
padStart += pad->ShapePos();
|
|
padEnd += pad->ShapePos();
|
|
|
|
SEG padSeg( padStart, padEnd );
|
|
int widths = ( padWidth + refSegWidth ) / 2;
|
|
int center2centerAllowed = minClearance + widths;
|
|
|
|
// Avoid square-roots if possible (for performance)
|
|
SEG::ecoord center2center_squared = refSeg.SquaredDistance( padSeg );
|
|
|
|
if( center2center_squared < SEG::Square( center2centerAllowed ) )
|
|
{
|
|
*aActualDist = std::max( 0.0, sqrt( center2center_squared ) - widths );
|
|
return false;
|
|
}
|
|
}
|
|
else if( pad->GetShape() == PAD_SHAPE_RECT || pad->GetShape() == PAD_SHAPE_ROUNDRECT )
|
|
{
|
|
EDA_RECT padBBox = pad->GetBoundingBox();
|
|
int widths = refSegWidth / 2;
|
|
|
|
// Note a ROUNDRECT pad with a corner radius = r can be treated as a smaller
|
|
// RECT (size - 2*r) with a clearance increased by r
|
|
if( pad->GetShape() == PAD_SHAPE_ROUNDRECT )
|
|
{
|
|
padBBox.Inflate( - pad->GetRoundRectCornerRadius() );
|
|
widths += pad->GetRoundRectCornerRadius();
|
|
}
|
|
|
|
SHAPE_RECT padShape( padBBox.GetPosition(), padBBox.GetWidth(), padBBox.GetHeight() );
|
|
int actual;
|
|
|
|
if( padShape.DoCollide( refSeg, minClearance + widths, &actual ) )
|
|
{
|
|
*aActualDist = actual - widths;
|
|
return false;
|
|
}
|
|
}
|
|
else // Convert the rest to polygons
|
|
{
|
|
SHAPE_POLY_SET polyset;
|
|
|
|
BOARD* board = pad->GetBoard();
|
|
int maxError = board ? board->GetDesignSettings().m_MaxError : ARC_HIGH_DEF;
|
|
|
|
pad->TransformShapeWithClearanceToPolygon( polyset, 0, maxError );
|
|
|
|
const SHAPE_LINE_CHAIN& refpoly = polyset.COutline( 0 );
|
|
int widths = refSegWidth / 2;
|
|
int actual;
|
|
|
|
if( !poly2segmentDRC( (wxPoint*) &refpoly.CPoint( 0 ), refpoly.PointCount(),
|
|
(wxPoint) refSeg.A, (wxPoint) refSeg.B,
|
|
minClearance + widths, &actual ) )
|
|
{
|
|
*aActualDist = actual - widths;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|