void DRC::testKeepoutAreas()
{
// Test keepout areas for vias, tracks and pads inside keepout areas
for( int ii = 0; ii < m_pcb->GetAreaCount(); ii++ )
{
ZONE_CONTAINER* area = m_pcb->GetArea( ii );
if( !area->GetIsKeepout() )
continue;
for( TRACK* segm = m_pcb->m_Track; segm != NULL; segm = segm->Next() )
{
if( segm->Type() == PCB_TRACE_T )
{
if( ! area->GetDoNotAllowTracks() )
continue;
if( segm->GetLayer() != area->GetLayer() )
continue;
if( area->Outline()->Distance( segm->GetStart(), segm->GetEnd(),
segm->GetWidth() ) == 0 )
{
m_currentMarker = fillMarker( segm, NULL,
DRCE_TRACK_INSIDE_KEEPOUT, m_currentMarker );
m_pcb->Add( m_currentMarker );
m_mainWindow->GetGalCanvas()->GetView()->Add( m_currentMarker );
m_currentMarker = 0;
}
}
else if( segm->Type() == PCB_VIA_T )
{
if( ! area->GetDoNotAllowVias() )
continue;
if( ! ((VIA*)segm)->IsOnLayer( area->GetLayer() ) )
continue;
if( area->Outline()->Distance( segm->GetPosition() ) < segm->GetWidth()/2 )
{
m_currentMarker = fillMarker( segm, NULL,
DRCE_VIA_INSIDE_KEEPOUT, m_currentMarker );
m_pcb->Add( m_currentMarker );
m_mainWindow->GetGalCanvas()->GetView()->Add( m_currentMarker );
m_currentMarker = 0;
}
}
}
// Test pads: TODO
}
}
void DRC::testZones()
{
// Test copper areas for valid netcodes
// if a netcode is < 0 the netname was not found when reading a netlist
// if a netcode is == 0 the netname is void, and the zone is not connected.
// This is allowed, but i am not sure this is a good idea
for( int ii = 0; ii < m_pcb->GetAreaCount(); ii++ )
{
ZONE_CONTAINER* test_area = m_pcb->GetArea( ii );
if( !test_area->IsOnCopperLayer() )
continue;
if( test_area->GetNetCode() < 0 )
{
m_currentMarker = fillMarker( test_area,
DRCE_NON_EXISTANT_NET_FOR_ZONE_OUTLINE, m_currentMarker );
m_pcb->Add( m_currentMarker );
m_mainWindow->GetGalCanvas()->GetView()->Add( m_currentMarker );
m_currentMarker = 0;
}
}
// Test copper areas outlines, and create markers when needed
m_pcb->Test_Drc_Areas_Outlines_To_Areas_Outlines( NULL, true );
}
bool DRC::doTrackKeepoutDrc( TRACK* aRefSeg )
{
// Test keepout areas for vias, tracks and pads inside keepout areas
for( int ii = 0; ii < m_pcb->GetAreaCount(); ii++ )
{
ZONE_CONTAINER* area = m_pcb->GetArea( ii );
if( !area->GetIsKeepout() )
continue;
if( aRefSeg->Type() == PCB_TRACE_T )
{
if( ! area->GetDoNotAllowTracks() )
continue;
if( aRefSeg->GetLayer() != area->GetLayer() )
continue;
if( area->Outline()->Distance( aRefSeg->GetStart(), aRefSeg->GetEnd(),
aRefSeg->GetWidth() ) == 0 )
{
m_currentMarker = fillMarker( aRefSeg, NULL,
DRCE_TRACK_INSIDE_KEEPOUT, m_currentMarker );
return false;
}
}
else if( aRefSeg->Type() == PCB_VIA_T )
{
if( ! area->GetDoNotAllowVias() )
continue;
if( ! ((VIA*)aRefSeg)->IsOnLayer( area->GetLayer() ) )
continue;
if( area->Outline()->Distance( aRefSeg->GetPosition() ) < aRefSeg->GetWidth()/2 )
{
m_currentMarker = fillMarker( aRefSeg, NULL,
DRCE_VIA_INSIDE_KEEPOUT, m_currentMarker );
return false;
}
}
}
return true;
}
void DRC::testZones()
{
// Test copper areas for valid netcodes
// if a netcode is < 0 the netname was not found when reading a netlist
// if a netcode is == 0 the netname is void, and the zone is not connected.
// This is allowed, but i am not sure this is a good idea
//
// In recent Pcbnew versions, the netcode is always >= 0, but an internal net name
// is stored, and initalized from the file or the zone properpies editor.
// if it differs from the net name from net code, there is a DRC issue
for( int ii = 0; ii < m_pcb->GetAreaCount(); ii++ )
{
ZONE_CONTAINER* test_area = m_pcb->GetArea( ii );
if( !test_area->IsOnCopperLayer() )
continue;
int netcode = test_area->GetNetCode();
// a netcode < 0 or > 0 and no pad in net is a error or strange
// perhaps a "dead" net, which happens when all pads in this net were removed
// Remark: a netcode < 0 should not happen (this is more a bug somewhere)
int pads_in_net = (test_area->GetNetCode() > 0) ?
test_area->GetNet()->GetNodesCount() : 1;
if( ( netcode < 0 ) || pads_in_net == 0 )
{
m_currentMarker = fillMarker( test_area,
DRCE_SUSPICIOUS_NET_FOR_ZONE_OUTLINE, m_currentMarker );
m_pcb->Add( m_currentMarker );
m_mainWindow->GetGalCanvas()->GetView()->Add( m_currentMarker );
m_currentMarker = NULL;
}
}
// Test copper areas outlines, and create markers when needed
m_pcb->Test_Drc_Areas_Outlines_To_Areas_Outlines( NULL, true );
}
bool DRC::doPadToPadsDrc( D_PAD* aRefPad, D_PAD** aStart, D_PAD** aEnd, int x_limit )
{
const static LSET all_cu = LSET::AllCuMask();
LSET layerMask = aRefPad->GetLayerSet() & all_cu;
/* used to test DRC pad to holes: this dummy pad has the size and shape of the hole
* to test pad to pad hole DRC, using the pad to pad DRC test function.
* Therefore, this dummy pad is a circle or an oval.
* A pad must have a parent because some functions expect a non null parent
* to find the parent board, and some other data
*/
MODULE dummymodule( m_pcb ); // Creates a dummy parent
D_PAD dummypad( &dummymodule );
// Ensure the hole is on all copper layers
dummypad.SetLayerSet( all_cu | dummypad.GetLayerSet() );
// Use the minimal local clearance value for the dummy pad.
// The clearance of the active pad will be used as minimum distance to a hole
// (a value = 0 means use netclass value)
dummypad.SetLocalClearance( 1 );
for( D_PAD** pad_list = aStart; pad_list<aEnd; ++pad_list )
{
D_PAD* pad = *pad_list;
if( pad == aRefPad )
continue;
// We can stop the test when pad->GetPosition().x > x_limit
// because the list is sorted by X values
if( pad->GetPosition().x > x_limit )
break;
// No problem if pads which are on copper layers are on different copper layers,
// (pads can be only on a technical layer, to build complex pads)
// but their hole (if any ) can create DRC error because they are on all
// copper layers, so we test them
if( ( pad->GetLayerSet() & layerMask ) == 0 &&
( pad->GetLayerSet() & all_cu ) != 0 &&
( aRefPad->GetLayerSet() & all_cu ) != 0 )
{
// if holes are in the same location and have the same size and shape,
// this can be accepted
if( pad->GetPosition() == aRefPad->GetPosition()
&& pad->GetDrillSize() == aRefPad->GetDrillSize()
&& pad->GetDrillShape() == aRefPad->GetDrillShape() )
{
if( aRefPad->GetDrillShape() == PAD_DRILL_SHAPE_CIRCLE )
continue;
// for oval holes: must also have the same orientation
if( pad->GetOrientation() == aRefPad->GetOrientation() )
continue;
}
/* Here, we must test clearance between holes and pads
* dummy pad size and shape is adjusted to pad drill size and shape
*/
if( pad->GetDrillSize().x )
{
// pad under testing has a hole, test this hole against pad reference
dummypad.SetPosition( pad->GetPosition() );
dummypad.SetSize( pad->GetDrillSize() );
dummypad.SetShape( pad->GetDrillShape() == PAD_DRILL_SHAPE_OBLONG ?
PAD_SHAPE_OVAL : PAD_SHAPE_CIRCLE );
dummypad.SetOrientation( pad->GetOrientation() );
if( !checkClearancePadToPad( aRefPad, &dummypad ) )
{
// here we have a drc error on pad!
m_currentMarker = fillMarker( pad, aRefPad,
DRCE_HOLE_NEAR_PAD, m_currentMarker );
return false;
}
}
if( aRefPad->GetDrillSize().x ) // pad reference has a hole
{
dummypad.SetPosition( aRefPad->GetPosition() );
dummypad.SetSize( aRefPad->GetDrillSize() );
dummypad.SetShape( aRefPad->GetDrillShape() == PAD_DRILL_SHAPE_OBLONG ?
PAD_SHAPE_OVAL : PAD_SHAPE_CIRCLE );
dummypad.SetOrientation( aRefPad->GetOrientation() );
if( !checkClearancePadToPad( pad, &dummypad ) )
{
// here we have a drc error on aRefPad!
m_currentMarker = fillMarker( aRefPad, pad,
DRCE_HOLE_NEAR_PAD, m_currentMarker );
return false;
}
}
continue;
}
// The pad must be in a net (i.e pt_pad->GetNet() != 0 ),
// But no problem if pads have the same netcode (same net)
if( pad->GetNetCode() && ( aRefPad->GetNetCode() == pad->GetNetCode() ) )
continue;
// if pads are from the same footprint
if( pad->GetParent() == aRefPad->GetParent() )
{
// and have the same pad number ( equivalent pads )
// one can argue that this 2nd test is not necessary, that any
// two pads from a single module are acceptable. This 2nd test
// should eventually be a configuration option.
if( pad->PadNameEqual( aRefPad ) )
continue;
}
// if either pad has no drill and is only on technical layers, not a clearance violation
if( ( ( pad->GetLayerSet() & layerMask ) == 0 && !pad->GetDrillSize().x ) ||
( ( aRefPad->GetLayerSet() & layerMask ) == 0 && !aRefPad->GetDrillSize().x ) )
{
continue;
}
if( !checkClearancePadToPad( aRefPad, pad ) )
{
// here we have a drc error!
m_currentMarker = fillMarker( aRefPad, pad, DRCE_PAD_NEAR_PAD1, m_currentMarker );
return false;
}
}
return true;
}
void DRC::testTexts()
{
std::vector<wxPoint> textShape; // a buffer to store the text shape (set of segments)
std::vector<D_PAD*> padList = m_pcb->GetPads();
// Test text areas for vias, tracks and pads inside text areas
for( BOARD_ITEM* item = m_pcb->m_Drawings; item; item = item->Next() )
{
// Drc test only items on copper layers
if( ! IsCopperLayer( item->GetLayer() ) )
continue;
// only texts on copper layers are tested
if( item->Type() != PCB_TEXT_T )
continue;
textShape.clear();
// So far the bounding box makes up the text-area
TEXTE_PCB* text = (TEXTE_PCB*) item;
text->TransformTextShapeToSegmentList( textShape );
if( textShape.size() == 0 ) // Should not happen (empty text?)
continue;
for( TRACK* track = m_pcb->m_Track; track != NULL; track = track->Next() )
{
if( ! track->IsOnLayer( item->GetLayer() ) )
continue;
// Test the distance between each segment and the current track/via
int min_dist = ( track->GetWidth() + text->GetThickness() ) /2 +
track->GetClearance(NULL);
if( track->Type() == PCB_TRACE_T )
{
SEG segref( track->GetStart(), track->GetEnd() );
// Error condition: Distance between text segment and track segment is
// smaller than the clearance of the segment
for( unsigned jj = 0; jj < textShape.size(); jj += 2 )
{
SEG segtest( textShape[jj], textShape[jj+1] );
int dist = segref.Distance( segtest );
if( dist < min_dist )
{
addMarkerToPcb( fillMarker( track, text,
DRCE_TRACK_INSIDE_TEXT,
m_currentMarker ) );
m_currentMarker = nullptr;
break;
}
}
}
else if( track->Type() == PCB_VIA_T )
{
// Error condition: Distance between text segment and via is
// smaller than the clearance of the via
for( unsigned jj = 0; jj < textShape.size(); jj += 2 )
{
SEG segtest( textShape[jj], textShape[jj+1] );
if( segtest.PointCloserThan( track->GetPosition(), min_dist ) )
{
addMarkerToPcb( fillMarker( track, text,
DRCE_VIA_INSIDE_TEXT, m_currentMarker ) );
m_currentMarker = nullptr;
break;
}
}
}
}
// Test pads
for( unsigned ii = 0; ii < padList.size(); ii++ )
{
D_PAD* pad = padList[ii];
if( ! pad->IsOnLayer( item->GetLayer() ) )
continue;
wxPoint shape_pos = pad->ShapePos();
for( unsigned jj = 0; jj < textShape.size(); jj += 2 )
{
/* In order to make some calculations more easier or faster,
* pads and tracks coordinates will be made relative
* to the segment origin
*/
wxPoint origin = textShape[jj]; // origin will be the origin of other coordinates
m_segmEnd = textShape[jj+1] - origin;
wxPoint delta = m_segmEnd;
m_segmAngle = 0;
// for a non horizontal or vertical segment Compute the segment angle
// in tenths of degrees and its length
if( delta.x || delta.y ) // delta.x == delta.y == 0 for vias
{
// Compute the segment angle in 0,1 degrees
m_segmAngle = ArcTangente( delta.y, delta.x );
// Compute the segment length: we build an equivalent rotated segment,
// this segment is horizontal, therefore dx = length
RotatePoint( &delta, m_segmAngle ); // delta.x = length, delta.y = 0
}
m_segmLength = delta.x;
m_padToTestPos = shape_pos - origin;
if( !checkClearanceSegmToPad( pad, text->GetThickness(),
pad->GetClearance(NULL) ) )
{
addMarkerToPcb( fillMarker( pad, text,
DRCE_PAD_INSIDE_TEXT, m_currentMarker ) );
m_currentMarker = nullptr;
break;
}
}
}
}
}
bool DRC::doNetClass( NETCLASSPTR nc, wxString& msg )
{
bool ret = true;
const BOARD_DESIGN_SETTINGS& g = m_pcb->GetDesignSettings();
#define FmtVal( x ) GetChars( StringFromValue( g_UserUnit, x ) )
#if 0 // set to 1 when (if...) BOARD_DESIGN_SETTINGS has a m_MinClearance value
if( nc->GetClearance() < g.m_MinClearance )
{
msg.Printf( _( "NETCLASS: '%s' has Clearance:%s which is less than global:%s" ),
GetChars( nc->GetName() ),
FmtVal( nc->GetClearance() ),
FmtVal( g.m_TrackClearance )
);
addMarkerToPcb( fillMarker( DRCE_NETCLASS_CLEARANCE, msg, m_currentMarker ) );
m_currentMarker = nullptr;
ret = false;
}
#endif
if( nc->GetTrackWidth() < g.m_TrackMinWidth )
{
msg.Printf( _( "NETCLASS: '%s' has TrackWidth:%s which is less than global:%s" ),
GetChars( nc->GetName() ),
FmtVal( nc->GetTrackWidth() ),
FmtVal( g.m_TrackMinWidth )
);
addMarkerToPcb( fillMarker( DRCE_NETCLASS_TRACKWIDTH, msg, m_currentMarker ) );
m_currentMarker = nullptr;
ret = false;
}
if( nc->GetViaDiameter() < g.m_ViasMinSize )
{
msg.Printf( _( "NETCLASS: '%s' has Via Dia:%s which is less than global:%s" ),
GetChars( nc->GetName() ),
FmtVal( nc->GetViaDiameter() ),
FmtVal( g.m_ViasMinSize )
);
addMarkerToPcb( fillMarker( DRCE_NETCLASS_VIASIZE, msg, m_currentMarker ) );
m_currentMarker = nullptr;
ret = false;
}
if( nc->GetViaDrill() < g.m_ViasMinDrill )
{
msg.Printf( _( "NETCLASS: '%s' has Via Drill:%s which is less than global:%s" ),
GetChars( nc->GetName() ),
FmtVal( nc->GetViaDrill() ),
FmtVal( g.m_ViasMinDrill )
);
addMarkerToPcb( fillMarker( DRCE_NETCLASS_VIADRILLSIZE, msg, m_currentMarker ) );
m_currentMarker = nullptr;
ret = false;
}
if( nc->GetuViaDiameter() < g.m_MicroViasMinSize )
{
msg.Printf( _( "NETCLASS: '%s' has uVia Dia:%s which is less than global:%s" ),
GetChars( nc->GetName() ),
FmtVal( nc->GetuViaDiameter() ),
FmtVal( g.m_MicroViasMinSize )
);
addMarkerToPcb( fillMarker( DRCE_NETCLASS_uVIASIZE, msg, m_currentMarker ) );
m_currentMarker = nullptr;
ret = false;
}
if( nc->GetuViaDrill() < g.m_MicroViasMinDrill )
{
msg.Printf( _( "NETCLASS: '%s' has uVia Drill:%s which is less than global:%s" ),
GetChars( nc->GetName() ),
FmtVal( nc->GetuViaDrill() ),
FmtVal( g.m_MicroViasMinDrill )
);
addMarkerToPcb( fillMarker( DRCE_NETCLASS_uVIADRILLSIZE, msg, m_currentMarker ) );
m_currentMarker = nullptr;
ret = false;
}
return ret;
}
bool DRC::doTrackDrc( TRACK* aRefSeg, TRACK* aStart, bool testPads )
{
TRACK* track;
wxPoint delta; // length on X and Y axis of segments
LSET layerMask;
int net_code_ref;
wxPoint shape_pos;
NETCLASSPTR netclass = aRefSeg->GetNetClass();
BOARD_DESIGN_SETTINGS& dsnSettings = m_pcb->GetDesignSettings();
/* In order to make some calculations more easier or faster,
* pads and tracks coordinates will be made relative to the reference segment origin
*/
wxPoint origin = aRefSeg->GetStart(); // origin will be the origin of other coordinates
m_segmEnd = delta = aRefSeg->GetEnd() - origin;
m_segmAngle = 0;
layerMask = aRefSeg->GetLayerSet();
net_code_ref = aRefSeg->GetNetCode();
// Phase 0 : Test vias
if( aRefSeg->Type() == PCB_VIA_T )
{
const VIA *refvia = static_cast<const VIA*>( aRefSeg );
// test if the via size is smaller than minimum
if( refvia->GetViaType() == VIA_MICROVIA )
{
if( refvia->GetWidth() < dsnSettings.m_MicroViasMinSize )
{
m_currentMarker = fillMarker( refvia, NULL,
DRCE_TOO_SMALL_MICROVIA, m_currentMarker );
return false;
}
if( refvia->GetDrillValue() < dsnSettings.m_MicroViasMinDrill )
{
m_currentMarker = fillMarker( refvia, NULL,
DRCE_TOO_SMALL_MICROVIA_DRILL, m_currentMarker );
return false;
}
}
else
{
if( refvia->GetWidth() < dsnSettings.m_ViasMinSize )
{
m_currentMarker = fillMarker( refvia, NULL,
DRCE_TOO_SMALL_VIA, m_currentMarker );
return false;
}
if( refvia->GetDrillValue() < dsnSettings.m_ViasMinDrill )
{
m_currentMarker = fillMarker( refvia, NULL,
DRCE_TOO_SMALL_VIA_DRILL, m_currentMarker );
return false;
}
}
// test if via's hole is bigger than its diameter
// This test is necessary since the via hole size and width can be modified
// and a default via hole can be bigger than some vias sizes
if( refvia->GetDrillValue() > refvia->GetWidth() )
{
m_currentMarker = fillMarker( refvia, NULL,
DRCE_VIA_HOLE_BIGGER, m_currentMarker );
return false;
}
// For microvias: test if they are blind vias and only between 2 layers
// because they are used for very small drill size and are drill by laser
// and **only one layer** can be drilled
if( refvia->GetViaType() == VIA_MICROVIA )
{
LAYER_ID layer1, layer2;
bool err = true;
refvia->LayerPair( &layer1, &layer2 );
if( layer1 > layer2 )
std::swap( layer1, layer2 );
if( layer2 == B_Cu && layer1 == m_pcb->GetDesignSettings().GetCopperLayerCount() - 2 )
err = false;
else if( layer1 == F_Cu && layer2 == In1_Cu )
err = false;
if( err )
{
m_currentMarker = fillMarker( refvia, NULL,
DRCE_MICRO_VIA_INCORRECT_LAYER_PAIR, m_currentMarker );
return false;
}
}
}
else // This is a track segment
{
if( aRefSeg->GetWidth() < dsnSettings.m_TrackMinWidth )
{
m_currentMarker = fillMarker( aRefSeg, NULL,
DRCE_TOO_SMALL_TRACK_WIDTH, m_currentMarker );
return false;
}
}
// for a non horizontal or vertical segment Compute the segment angle
// in tenths of degrees and its length
if( delta.x || delta.y )
{
// Compute the segment angle in 0,1 degrees
m_segmAngle = ArcTangente( delta.y, delta.x );
// Compute the segment length: we build an equivalent rotated segment,
// this segment is horizontal, therefore dx = length
RotatePoint( &delta, m_segmAngle ); // delta.x = length, delta.y = 0
}
m_segmLength = delta.x;
/******************************************/
/* Phase 1 : test DRC track to pads : */
/******************************************/
/* Use a dummy pad to test DRC tracks versus holes, for pads not on all copper layers
* but having a hole
* This dummy pad has the size and shape of the hole
* to test tracks to pad hole DRC, using checkClearanceSegmToPad test function.
* Therefore, this dummy pad is a circle or an oval.
* A pad must have a parent because some functions expect a non null parent
* to find the parent board, and some other data
*/
MODULE dummymodule( m_pcb ); // Creates a dummy parent
D_PAD dummypad( &dummymodule );
dummypad.SetLayerSet( LSET::AllCuMask() ); // Ensure the hole is on all layers
// Compute the min distance to pads
if( testPads )
{
unsigned pad_count = m_pcb->GetPadCount();
for( unsigned ii = 0; ii<pad_count; ++ii )
{
D_PAD* pad = m_pcb->GetPad( ii );
/* No problem if pads are on an other layer,
* But if a drill hole exists (a pad on a single layer can have a hole!)
* we must test the hole
*/
if( !( pad->GetLayerSet() & layerMask ).any() )
{
/* We must test the pad hole. In order to use the function
* checkClearanceSegmToPad(),a pseudo pad is used, with a shape and a
* size like the hole
*/
if( pad->GetDrillSize().x == 0 )
continue;
dummypad.SetSize( pad->GetDrillSize() );
dummypad.SetPosition( pad->GetPosition() );
dummypad.SetShape( pad->GetDrillShape() == PAD_DRILL_SHAPE_OBLONG ?
PAD_SHAPE_OVAL : PAD_SHAPE_CIRCLE );
dummypad.SetOrientation( pad->GetOrientation() );
m_padToTestPos = dummypad.GetPosition() - origin;
if( !checkClearanceSegmToPad( &dummypad, aRefSeg->GetWidth(),
netclass->GetClearance() ) )
{
m_currentMarker = fillMarker( aRefSeg, pad,
DRCE_TRACK_NEAR_THROUGH_HOLE, m_currentMarker );
return false;
}
continue;
}
// The pad must be in a net (i.e pt_pad->GetNet() != 0 )
// but no problem if the pad netcode is the current netcode (same net)
if( pad->GetNetCode() // the pad must be connected
&& net_code_ref == pad->GetNetCode() ) // the pad net is the same as current net -> Ok
continue;
// DRC for the pad
shape_pos = pad->ShapePos();
m_padToTestPos = shape_pos - origin;
if( !checkClearanceSegmToPad( pad, aRefSeg->GetWidth(), aRefSeg->GetClearance( pad ) ) )
{
m_currentMarker = fillMarker( aRefSeg, pad,
DRCE_TRACK_NEAR_PAD, m_currentMarker );
return false;
}
}
}
/***********************************************/
/* Phase 2: test DRC with other track segments */
/***********************************************/
// At this point the reference segment is the X axis
// Test the reference segment with other track segments
wxPoint segStartPoint;
wxPoint segEndPoint;
for( track = aStart; track; track = track->Next() )
{
// No problem if segments have the same net code:
if( net_code_ref == track->GetNetCode() )
continue;
// No problem if segment are on different layers :
if( !( layerMask & track->GetLayerSet() ).any() )
continue;
// the minimum distance = clearance plus half the reference track
// width plus half the other track's width
int w_dist = aRefSeg->GetClearance( track );
w_dist += (aRefSeg->GetWidth() + track->GetWidth()) / 2;
// Due to many double to int conversions during calculations, which
// create rounding issues,
// the exact clearance margin cannot be really known.
// To avoid false bad DRC detection due to these rounding issues,
// slightly decrease the w_dist (remove one nanometer is enough !)
w_dist -= 1;
// If the reference segment is a via, we test it here
if( aRefSeg->Type() == PCB_VIA_T )
{
delta = track->GetEnd() - track->GetStart();
segStartPoint = aRefSeg->GetStart() - track->GetStart();
if( track->Type() == PCB_VIA_T )
{
// Test distance between two vias, i.e. two circles, trivial case
if( EuclideanNorm( segStartPoint ) < w_dist )
{
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_VIA_NEAR_VIA, m_currentMarker );
return false;
}
}
else // test via to segment
{
// Compute l'angle du segment a tester;
double angle = ArcTangente( delta.y, delta.x );
// Compute new coordinates ( the segment become horizontal)
RotatePoint( &delta, angle );
RotatePoint( &segStartPoint, angle );
if( !checkMarginToCircle( segStartPoint, w_dist, delta.x ) )
{
m_currentMarker = fillMarker( track, aRefSeg,
DRCE_VIA_NEAR_TRACK, m_currentMarker );
return false;
}
}
continue;
}
/* We compute segStartPoint, segEndPoint = starting and ending point coordinates for
* the segment to test in the new axis : the new X axis is the
* reference segment. We must translate and rotate the segment to test
*/
segStartPoint = track->GetStart() - origin;
segEndPoint = track->GetEnd() - origin;
RotatePoint( &segStartPoint, m_segmAngle );
RotatePoint( &segEndPoint, m_segmAngle );
if( track->Type() == PCB_VIA_T )
{
if( checkMarginToCircle( segStartPoint, w_dist, m_segmLength ) )
continue;
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_TRACK_NEAR_VIA, m_currentMarker );
return false;
}
/* We have changed axis:
* the reference segment is Horizontal.
* 3 cases : the segment to test can be parallel, perpendicular or have an other direction
*/
if( segStartPoint.y == segEndPoint.y ) // parallel segments
{
if( abs( segStartPoint.y ) >= w_dist )
continue;
// Ensure segStartPoint.x <= segEndPoint.x
if( segStartPoint.x > segEndPoint.x )
std::swap( segStartPoint.x, segEndPoint.x );
if( segStartPoint.x > (-w_dist) && segStartPoint.x < (m_segmLength + w_dist) ) /* possible error drc */
{
// the start point is inside the reference range
// X........
// O--REF--+
// Fine test : we consider the rounded shape of each end of the track segment:
if( segStartPoint.x >= 0 && segStartPoint.x <= m_segmLength )
{
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_TRACK_ENDS1, m_currentMarker );
return false;
}
if( !checkMarginToCircle( segStartPoint, w_dist, m_segmLength ) )
{
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_TRACK_ENDS2, m_currentMarker );
return false;
}
}
if( segEndPoint.x > (-w_dist) && segEndPoint.x < (m_segmLength + w_dist) )
{
// the end point is inside the reference range
// .....X
// O--REF--+
// Fine test : we consider the rounded shape of the ends
if( segEndPoint.x >= 0 && segEndPoint.x <= m_segmLength )
{
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_TRACK_ENDS3, m_currentMarker );
return false;
}
if( !checkMarginToCircle( segEndPoint, w_dist, m_segmLength ) )
{
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_TRACK_ENDS4, m_currentMarker );
return false;
}
}
if( segStartPoint.x <=0 && segEndPoint.x >= 0 )
{
// the segment straddles the reference range (this actually only
// checks if it straddles the origin, because the other cases where already
// handled)
// X.............X
// O--REF--+
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_TRACK_SEGMENTS_TOO_CLOSE, m_currentMarker );
return false;
}
}
else if( segStartPoint.x == segEndPoint.x ) // perpendicular segments
{
if( ( segStartPoint.x <= (-w_dist) ) || ( segStartPoint.x >= (m_segmLength + w_dist) ) )
continue;
// Test if segments are crossing
if( segStartPoint.y > segEndPoint.y )
std::swap( segStartPoint.y, segEndPoint.y );
if( (segStartPoint.y < 0) && (segEndPoint.y > 0) )
{
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_TRACKS_CROSSING, m_currentMarker );
return false;
}
// At this point the drc error is due to an end near a reference segm end
if( !checkMarginToCircle( segStartPoint, w_dist, m_segmLength ) )
{
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_ENDS_PROBLEM1, m_currentMarker );
return false;
}
if( !checkMarginToCircle( segEndPoint, w_dist, m_segmLength ) )
{
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_ENDS_PROBLEM2, m_currentMarker );
return false;
}
}
else // segments quelconques entre eux
{
// calcul de la "surface de securite du segment de reference
// First rought 'and fast) test : the track segment is like a rectangle
m_xcliplo = m_ycliplo = -w_dist;
m_xcliphi = m_segmLength + w_dist;
m_ycliphi = w_dist;
// A fine test is needed because a serment is not exactly a
// rectangle, it has rounded ends
if( !checkLine( segStartPoint, segEndPoint ) )
{
/* 2eme passe : the track has rounded ends.
* we must a fine test for each rounded end and the
* rectangular zone
*/
m_xcliplo = 0;
m_xcliphi = m_segmLength;
if( !checkLine( segStartPoint, segEndPoint ) )
{
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_ENDS_PROBLEM3, m_currentMarker );
return false;
}
else // The drc error is due to the starting or the ending point of the reference segment
{
// Test the starting and the ending point
segStartPoint = track->GetStart();
segEndPoint = track->GetEnd();
delta = segEndPoint - segStartPoint;
// Compute the segment orientation (angle) en 0,1 degre
double angle = ArcTangente( delta.y, delta.x );
// Compute the segment length: delta.x = length after rotation
RotatePoint( &delta, angle );
/* Comute the reference segment coordinates relatives to a
* X axis = current tested segment
*/
wxPoint relStartPos = aRefSeg->GetStart() - segStartPoint;
wxPoint relEndPos = aRefSeg->GetEnd() - segStartPoint;
RotatePoint( &relStartPos, angle );
RotatePoint( &relEndPos, angle );
if( !checkMarginToCircle( relStartPos, w_dist, delta.x ) )
{
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_ENDS_PROBLEM4, m_currentMarker );
return false;
}
if( !checkMarginToCircle( relEndPos, w_dist, delta.x ) )
{
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_ENDS_PROBLEM5, m_currentMarker );
return false;
}
}
}
}
}
return true;
}
bool DRC::doEdgeZoneDrc( ZONE_CONTAINER* aArea, int aCornerIndex )
{
if( !aArea->IsOnCopperLayer() ) // Cannot have a Drc error if not on copper layer
return true;
wxPoint start = aArea->GetCornerPosition( aCornerIndex );
wxPoint end;
// Search the end point of the edge starting at aCornerIndex
if( aArea->Outline()->m_CornersList[aCornerIndex].end_contour == false
&& aCornerIndex < (aArea->GetNumCorners() - 1) )
{
end = aArea->GetCornerPosition( aCornerIndex + 1 );
}
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;
}
bool DRC::doEdgeZoneDrc( ZONE_CONTAINER* aArea, int aCornerIndex )
{
if( !aArea->IsOnCopperLayer() ) // Cannot have a Drc error if not on copper layer
return true;
wxString str;
wxPoint start = aArea->GetCornerPosition( aCornerIndex );
wxPoint end;
// Search the end point of the edge starting at aCornerIndex
if( aArea->m_Poly->corner[aCornerIndex].end_contour == false
&& aCornerIndex < (aArea->GetNumCorners() - 1) )
{
end = aArea->GetCornerPosition( aCornerIndex + 1 );
}
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->m_Poly->corner[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 = max( Area_To_Test->m_ZoneClearance,
aArea->m_ZoneClearance );
// test for same layer
if( Area_To_Test->GetLayer() != aArea->GetLayer() )
continue;
// Test for same net
if( ( aArea->GetNet() == Area_To_Test->GetNet() ) && (aArea->GetNet() >= 0) )
continue;
// test for same priority
if( Area_To_Test->GetPriority() != aArea->GetPriority() )
continue;
// test for ending line inside Area_To_Test
int x = end.x;
int y = end.y;
if( Area_To_Test->m_Poly->TestPointInside( x, y ) )
{
// COPPERAREA_COPPERAREA error: corner inside copper area
m_currentMarker = fillMarker( aArea, wxPoint( x, y ),
COPPERAREA_INSIDE_COPPERAREA,
m_currentMarker );
return false;
}
// now test spacing between areas
int astyle = CPolyLine::STRAIGHT;
int ax1 = start.x;
int ay1 = start.y;
int ax2 = end.x;
int ay2 = end.y;
for( int icont2 = 0; icont2 < Area_To_Test->m_Poly->GetNumContours(); icont2++ )
{
int ic_start2 = Area_To_Test->m_Poly->GetContourStart( icont2 );
int ic_end2 = Area_To_Test->m_Poly->GetContourEnd( icont2 );
for( int ic2 = ic_start2; ic2<=ic_end2; ic2++ )
{
int bx1 = Area_To_Test->m_Poly->GetX( ic2 );
int by1 = Area_To_Test->m_Poly->GetY( ic2 );
int bx2, by2;
if( ic2 == ic_end2 )
{
bx2 = Area_To_Test->m_Poly->GetX( ic_start2 );
by2 = Area_To_Test->m_Poly->GetY( ic_start2 );
}
else
{
bx2 = Area_To_Test->m_Poly->GetX( ic2 + 1 );
by2 = Area_To_Test->m_Poly->GetY( ic2 + 1 );
}
int bstyle = Area_To_Test->m_Poly->GetSideStyle( ic2 );
int x, y;
int d = GetClearanceBetweenSegments( bx1, by1, bx2, by2, bstyle,
0,
ax1, ay1, ax2, ay2, astyle,
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;
}
bool DRC::doEdgeZoneDrc( ZONE_CONTAINER* aArea, int aCornerIndex )
{
if( !aArea->IsOnCopperLayer() ) // Cannot have a Drc error if not on copper layer
return true;
// Get polygon, contour and vertex index.
SHAPE_POLY_SET::VERTEX_INDEX index;
// If the vertex does not exist, there is no conflict
if( !aArea->Outline()->GetRelativeIndices( aCornerIndex, &index ) )
return true;
// Retrieve the selected contour
SHAPE_LINE_CHAIN contour;
contour = aArea->Outline()->Polygon( index.m_polygon )[index.m_contour];
// Retrieve the segment that starts at aCornerIndex-th corner.
SEG selectedSegment = contour.Segment( index.m_vertex );
VECTOR2I start = selectedSegment.A;
VECTOR2I end = selectedSegment.B;
// 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()->Contains( end ) )
{
// COPPERAREA_COPPERAREA error: corner inside copper area
m_currentMarker = fillMarker( aArea, static_cast<wxPoint>( 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;
// Iterate through all edges in the polygon.
SHAPE_POLY_SET::SEGMENT_ITERATOR iterator;
for( iterator = area_to_test->Outline()->IterateSegmentsWithHoles(); iterator; iterator++ )
{
SEG segment = *iterator;
int bx1 = segment.A.x;
int by1 = segment.A.y;
int bx2 = segment.B.x;
int by2 = segment.B.y;
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;
}
