kicad/pcbnew/drc/drc_test_provider_clearance...

92 lines
3.1 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2019-2020 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 <class_board.h>
#include <class_track.h>
#include <geometry/seg.h>
#include <drc/drc_test_provider_clearance_base.h>
const int UI_EPSILON = Mils2iu( 5 );
wxPoint DRC_TEST_PROVIDER_CLEARANCE_BASE::getLocation( PCB_LAYER_ID aLayer, TRACK* aTrack,
ZONE_CONTAINER* aZone )
{
SHAPE_POLY_SET* zonePoly = nullptr;
if( aZone->IsFilled() && aZone->HasFilledPolysForLayer( aLayer ) )
zonePoly = const_cast<SHAPE_POLY_SET*>( &aZone->GetFilledPolysList( aLayer ) );
if( !zonePoly || zonePoly->IsEmpty() )
zonePoly = aZone->Outline();
SEG trackSeg( aTrack->GetStart(), aTrack->GetEnd() );
SEG::ecoord closestDist_sq = VECTOR2I::ECOORD_MAX;
SEG closestSeg;
for( auto it = zonePoly->CIterateSegments( 0, -1, true ); it; it++ )
{
SEG::ecoord dist_sq = trackSeg.SquaredDistance( *it );
if( dist_sq < closestDist_sq )
{
closestDist_sq = dist_sq;
closestSeg = *it;
}
}
VECTOR2I pt1 = closestSeg.A;
VECTOR2I pt2 = closestSeg.B;
// Do a binary search for a "good enough" marker location
while( GetLineLength( (wxPoint) pt1, (wxPoint) pt2 ) > UI_EPSILON )
{
if( trackSeg.SquaredDistance( pt1 ) < trackSeg.SquaredDistance( pt2 ) )
pt2 = ( pt1 + pt2 ) / 2;
else
pt1 = ( pt1 + pt2 ) / 2;
}
// Once we're within UI_EPSILON pt1 and pt2 are "equivalent"
return (wxPoint) pt1;
}
wxPoint DRC_TEST_PROVIDER_CLEARANCE_BASE::getLocation( TRACK* aTrack, const SEG& aConflictSeg )
{
wxPoint pt1 = aTrack->GetPosition();
wxPoint pt2 = aTrack->GetEnd();
// Do a binary search along the track for a "good enough" marker location
while( GetLineLength( pt1, pt2 ) > UI_EPSILON )
{
if( aConflictSeg.SquaredDistance( pt1 ) < aConflictSeg.SquaredDistance( pt2 ) )
pt2 = ( pt1 + pt2 ) / 2;
else
pt1 = ( pt1 + pt2 ) / 2;
}
// Once we're within UI_EPSILON pt1 and pt2 are "equivalent"
return pt1;
}