kicad/pcbnew/drc/drc_test_provider_zone_conn...

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2021 KiCad Developers.
*
* 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 <board.h>
#include <board_design_settings.h>
#include <connectivity/connectivity_data.h>
#include <zone.h>
#include <footprint.h>
#include <pad.h>
#include <pcb_track.h>
#include <geometry/shape_line_chain.h>
#include <geometry/shape_poly_set.h>
#include <drc/drc_rule.h>
#include <drc/drc_test_provider.h>
/*
This loads some rule resolvers for the ZONE_FILLER, and checks that pad thermal relief
connections have at least the required number of spokes.
Errors generated:
- DRCE_STARVED_THERMAL
*/
class DRC_TEST_PROVIDER_ZONE_CONNECTIONS : public DRC_TEST_PROVIDER
{
public:
DRC_TEST_PROVIDER_ZONE_CONNECTIONS()
{
}
virtual ~DRC_TEST_PROVIDER_ZONE_CONNECTIONS()
{
}
virtual bool Run() override;
virtual const wxString GetName() const override
{
return "zone connections";
};
virtual const wxString GetDescription() const override
{
return "Checks thermal reliefs for a sufficient number of connecting spokes";
}
virtual std::set<DRC_CONSTRAINT_T> GetConstraintTypes() const override
{
return { ZONE_CONNECTION_CONSTRAINT, THERMAL_RELIEF_GAP_CONSTRAINT,
THERMAL_SPOKE_WIDTH_CONSTRAINT, MIN_RESOLVED_SPOKES_CONSTRAINT };
}
};
bool DRC_TEST_PROVIDER_ZONE_CONNECTIONS::Run()
{
const int delta = 5; // This is the number of tests between 2 calls to the progress bar
int ii = 0;
BOARD* board = m_drcEngine->GetBoard();
BOARD_DESIGN_SETTINGS& bds = board->GetDesignSettings();
std::shared_ptr<CONNECTIVITY_DATA> connectivity = board->GetConnectivity();
DRC_CONSTRAINT constraint;
std::vector<ZONE*> zones;
if( !reportPhase( _( "Checking thermal reliefs..." ) ) )
return false; // DRC cancelled
for( ZONE* zone : board->Zones() )
zones.push_back( zone );
for( FOOTPRINT* footprint : board->Footprints() )
{
for( ZONE* zone : footprint->Zones() )
zones.push_back( zone );
}
for( ZONE* zone : zones )
{
if( !reportProgress( ii++, zones.size(), delta ) )
return false;
for( PCB_LAYER_ID layer : zone->GetLayerSet().Seq() )
{
const SHAPE_POLY_SET& zoneFill = zone->GetFilledPolysList( layer );
for( FOOTPRINT* footprint : board->Footprints() )
{
for( PAD* pad : footprint->Pads() )
{
if( m_drcEngine->IsErrorLimitExceeded( DRCE_STARVED_THERMAL ) )
return true;
if( !pad->FlashLayer( layer ) )
continue;
if( pad->GetNetCode() != zone->GetNetCode() || pad->GetNetCode() <= 0 )
continue;
EDA_RECT item_boundingbox = pad->GetBoundingBox();
if( !item_boundingbox.Intersects( zone->GetCachedBoundingBox() ) )
continue;
constraint = bds.m_DRCEngine->EvalZoneConnection( pad, zone, layer );
ZONE_CONNECTION conn = constraint.m_ZoneConnection;
if( conn != ZONE_CONNECTION::THERMAL )
continue;
constraint = bds.m_DRCEngine->EvalRules( MIN_RESOLVED_SPOKES_CONSTRAINT,
pad, zone, layer );
int minCount = constraint.m_Value.Min();
if( minCount <= 0 )
continue;
SHAPE_POLY_SET padPoly;
pad->TransformShapeWithClearanceToPolygon( padPoly, layer, 0, ARC_LOW_DEF,
ERROR_OUTSIDE );
SHAPE_LINE_CHAIN& padOutline = padPoly.Outline( 0 );
std::vector<SHAPE_LINE_CHAIN::INTERSECTION> intersections;
int spokes = 0;
for( int jj = 0; jj < zoneFill.OutlineCount(); ++jj )
padOutline.Intersect( zoneFill.Outline( jj ), intersections, true );
spokes += intersections.size() / 2;
for( PCB_TRACK* track : connectivity->GetConnectedTracks( pad ) )
{
if( padOutline.PointInside( track->GetStart() ) )
{
if( zone->GetFilledPolysList( layer ).Collide( track->GetEnd() ) )
spokes++;
}
else if( padOutline.PointInside( track->GetEnd() ) )
{
if( zone->GetFilledPolysList( layer ).Collide( track->GetStart() ) )
spokes++;
}
}
if( spokes < minCount )
{
std::shared_ptr<DRC_ITEM> drce = DRC_ITEM::Create( DRCE_STARVED_THERMAL );
m_msg.Printf( _( "(%s min spoke count %d; actual %d)" ),
constraint.GetName(),
minCount,
spokes );
drce->SetErrorMessage( drce->GetErrorText() + wxS( " " ) + m_msg );
drce->SetItems( zone, pad );
drce->SetViolatingRule( constraint.GetParentRule() );
reportViolation( drce, pad->GetPosition() );
}
}
}
}
}
return true;
}
namespace detail
{
static DRC_REGISTER_TEST_PROVIDER<DRC_TEST_PROVIDER_ZONE_CONNECTIONS> dummy;
}