/* Build the filled solid areas data from real outlines (stored in m_Poly)
* The solid areas can be more than one on copper layers, and do not have holes
* ( holes are linked by overlapping segments to the main outline)
*/
bool ZONE_FILLER::fillSingleZone( const ZONE_CONTAINER* aZone, SHAPE_POLY_SET& aRawPolys,
SHAPE_POLY_SET& aFinalPolys ) const
{
SHAPE_POLY_SET smoothedPoly;
/* convert outlines + holes to outlines without holes (adding extra segments if necessary)
* m_Poly data is expected normalized, i.e. NormalizeAreaOutlines was used after building
* this zone
*/
if ( !aZone->BuildSmoothedPoly( smoothedPoly ) )
return false;
if( aZone->IsOnCopperLayer() )
{
computeRawFilledAreas( aZone, smoothedPoly, aRawPolys, aFinalPolys );
}
else
{
aRawPolys = smoothedPoly;
aFinalPolys = smoothedPoly;
aFinalPolys.Inflate( -aZone->GetMinThickness() / 2, 16 );
aFinalPolys.Fracture( SHAPE_POLY_SET::PM_FAST );
}
return true;
}
void GERBER_PLOTTER::FlashPadCustom( const wxPoint& aPadPos, const wxSize& aSize,
SHAPE_POLY_SET* aPolygons,
EDA_DRAW_MODE_T aTraceMode, void* aData )
{
// A Pad custom is plotted as polygon.
// A flashed circle @aPadPos is added (anchor pad)
// However, because the anchor pad can be circle or rect, we use only
// a circle not bigger than the rect.
// the main purpose is to print a flashed DCode as pad anchor
if( aTraceMode == FILLED )
FlashPadCircle( aPadPos, std::min( aSize.x, aSize.y ), aTraceMode, aData );
GBR_METADATA gbr_metadata;
if( aData )
{
gbr_metadata = *static_cast<GBR_METADATA*>( aData );
// If the pad is drawn on a copper layer,
// set attribute to GBR_APERTURE_ATTRIB_CONDUCTOR
if( gbr_metadata.IsCopper() )
gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_CONDUCTOR );
wxString attrname( ".P" );
gbr_metadata.m_NetlistMetadata.ClearAttribute( &attrname ); // not allowed on inner layers
}
SHAPE_POLY_SET polyshape = *aPolygons;
if( aTraceMode != FILLED )
{
SetCurrentLineWidth( USE_DEFAULT_LINE_WIDTH, &gbr_metadata );
polyshape.Inflate( -GetCurrentLineWidth()/2, 16 );
}
std::vector< wxPoint > cornerList;
for( int cnt = 0; cnt < polyshape.OutlineCount(); ++cnt )
{
SHAPE_LINE_CHAIN& poly = polyshape.Outline( cnt );
cornerList.clear();
for( int ii = 0; ii < poly.PointCount(); ++ii )
cornerList.push_back( wxPoint( poly.Point( ii ).x, poly.Point( ii ).y ) );
// Close polygon
cornerList.push_back( cornerList[0] );
PlotPoly( cornerList,
aTraceMode == FILLED ? FILLED_SHAPE : NO_FILL,
aTraceMode == FILLED ? 0 : GetCurrentLineWidth(), &gbr_metadata );
}
}
void GERBER_PLOTTER::FlashPadRoundRect( const wxPoint& aPadPos, const wxSize& aSize,
int aCornerRadius, double aOrient,
EDA_DRAW_MODE_T aTraceMode, void* aData )
{
GBR_METADATA gbr_metadata;
if( aData )
{
gbr_metadata = *static_cast<GBR_METADATA*>( aData );
// If the pad is drawn on a copper layer,
// set attribute to GBR_APERTURE_ATTRIB_CONDUCTOR
if( gbr_metadata.IsCopper() )
gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_CONDUCTOR );
wxString attrname( ".P" );
gbr_metadata.m_NetlistMetadata.ClearAttribute( &attrname ); // not allowed on inner layers
}
if( aTraceMode != FILLED )
SetCurrentLineWidth( USE_DEFAULT_LINE_WIDTH, &gbr_metadata );
// Currently, a Pad RoundRect is plotted as polygon.
// TODO: use Aperture macro and flash it
SHAPE_POLY_SET outline;
const int segmentToCircleCount = 64;
TransformRoundRectToPolygon( outline, aPadPos, aSize, aOrient,
aCornerRadius, segmentToCircleCount );
if( aTraceMode != FILLED )
outline.Inflate( -GetCurrentLineWidth()/2, 16 );
std::vector< wxPoint > cornerList;
// TransformRoundRectToPolygon creates only one convex polygon
SHAPE_LINE_CHAIN& poly = outline.Outline( 0 );
cornerList.reserve( poly.PointCount() + 1 );
for( int ii = 0; ii < poly.PointCount(); ++ii )
cornerList.push_back( wxPoint( poly.Point( ii ).x, poly.Point( ii ).y ) );
// Close polygon
cornerList.push_back( cornerList[0] );
PlotPoly( cornerList, aTraceMode == FILLED ? FILLED_SHAPE : NO_FILL,
aTraceMode == FILLED ? 0 : GetCurrentLineWidth(), &gbr_metadata );
// Now, flash a pad anchor, if a netlist attribute is set
// (remove me when a Aperture macro will be used)
if( aData && aTraceMode == FILLED )
{
int diameter = std::min( aSize.x, aSize.y );
FlashPadCircle( aPadPos, diameter, aTraceMode , aData );
}
}
/**
* Function TransformRoundRectToPolygon
* convert a rectangle with rounded corners to a polygon
* Convert arcs to multiple straight lines
* @param aCornerBuffer = a buffer to store the polygon
* @param aPosition = the coordinate of the center of the rectangle
* @param aSize = the size of the rectangle
* @param aRadius = radius of rounded corners
* @param aRotation = rotation in 0.1 degrees of the rectangle
* @param aCircleToSegmentsCount = the number of segments to approximate a circle
*/
void TransformRoundRectToPolygon( SHAPE_POLY_SET& aCornerBuffer,
const wxPoint& aPosition, const wxSize& aSize,
double aRotation, int aCornerRadius,
int aCircleToSegmentsCount )
{
wxPoint corners[4];
GetRoundRectCornerCenters( corners, aCornerRadius, aPosition, aSize, aRotation );
SHAPE_POLY_SET outline;
outline.NewOutline();
for( int ii = 0; ii < 4; ++ii )
outline.Append( corners[ii].x, corners[ii].y );
outline.Inflate( aCornerRadius, aCircleToSegmentsCount );
// Add the outline:
aCornerBuffer.Append( outline );
}
void ZONE_CONTAINER::AddClearanceAreasPolygonsToPolysList_NG( BOARD* aPcb )
{
int segsPerCircle;
double correctionFactor;
int outline_half_thickness = m_ZoneMinThickness / 2;
std::unique_ptr<SHAPE_FILE_IO> dumper( new SHAPE_FILE_IO(
g_DumpZonesWhenFilling ? "zones_dump.txt" : "", SHAPE_FILE_IO::IOM_APPEND ) );
// Set the number of segments in arc approximations
if( m_ArcToSegmentsCount == ARC_APPROX_SEGMENTS_COUNT_HIGHT_DEF )
segsPerCircle = ARC_APPROX_SEGMENTS_COUNT_HIGHT_DEF;
else
segsPerCircle = ARC_APPROX_SEGMENTS_COUNT_LOW_DEF;
/* calculates the coeff to compensate radius reduction of holes clearance
* due to the segment approx.
* For a circle the min radius is radius * cos( 2PI / s_CircleToSegmentsCount / 2)
* s_Correction is 1 /cos( PI/s_CircleToSegmentsCount )
*/
correctionFactor = 1.0 / cos( M_PI / (double) segsPerCircle );
CPOLYGONS_LIST tmp;
if(g_DumpZonesWhenFilling)
dumper->BeginGroup("clipper-zone");
SHAPE_POLY_SET solidAreas = ConvertPolyListToPolySet( m_smoothedPoly->m_CornersList );
solidAreas.Inflate( -outline_half_thickness, segsPerCircle );
solidAreas.Simplify( POLY_CALC_MODE );
SHAPE_POLY_SET holes;
if(g_DumpZonesWhenFilling)
dumper->Write( &solidAreas, "solid-areas" );
tmp.RemoveAllContours();
buildFeatureHoleList( aPcb, holes );
if(g_DumpZonesWhenFilling)
dumper->Write( &holes, "feature-holes" );
holes.Simplify( POLY_CALC_MODE );
if (g_DumpZonesWhenFilling)
dumper->Write( &holes, "feature-holes-postsimplify" );
solidAreas.BooleanSubtract( holes, POLY_CALC_MODE );
if (g_DumpZonesWhenFilling)
dumper->Write( &solidAreas, "solid-areas-minus-holes" );
SHAPE_POLY_SET areas_fractured = solidAreas;
areas_fractured.Fracture( POLY_CALC_MODE );
if (g_DumpZonesWhenFilling)
dumper->Write( &areas_fractured, "areas_fractured" );
m_FilledPolysList = areas_fractured;
// Remove insulated islands:
if( GetNetCode() > 0 )
TestForCopperIslandAndRemoveInsulatedIslands( aPcb );
SHAPE_POLY_SET thermalHoles;
// Test thermal stubs connections and add polygons to remove unconnected stubs.
// (this is a refinement for thermal relief shapes)
if( GetNetCode() > 0 )
BuildUnconnectedThermalStubsPolygonList( thermalHoles, aPcb, this,
correctionFactor, s_thermalRot );
// remove copper areas corresponding to not connected stubs
if( !thermalHoles.IsEmpty() )
{
thermalHoles.Simplify( POLY_CALC_MODE );
// Remove unconnected stubs
solidAreas.BooleanSubtract( thermalHoles, POLY_CALC_MODE );
if( g_DumpZonesWhenFilling )
dumper->Write( &thermalHoles, "thermal-holes" );
// put these areas in m_FilledPolysList
SHAPE_POLY_SET th_fractured = solidAreas;
th_fractured.Fracture( POLY_CALC_MODE );
if( g_DumpZonesWhenFilling )
dumper->Write ( &th_fractured, "th_fractured" );
m_FilledPolysList = th_fractured;
if( GetNetCode() > 0 )
TestForCopperIslandAndRemoveInsulatedIslands( aPcb );
}
if(g_DumpZonesWhenFilling)
dumper->EndGroup();
}
void D_PAD::TransformShapeWithClearanceToPolygon(
SHAPE_POLY_SET& aCornerBuffer, int aClearanceValue, int aError, bool ignoreLineWidth ) const
{
wxASSERT_MSG( !ignoreLineWidth, "IgnoreLineWidth has no meaning for pads." );
double angle = m_Orient;
int dx = (m_Size.x / 2) + aClearanceValue;
int dy = (m_Size.y / 2) + aClearanceValue;
wxPoint padShapePos = ShapePos(); /* Note: for pad having a shape offset,
* the pad position is NOT the shape position */
switch( GetShape() )
{
case PAD_SHAPE_CIRCLE:
{
TransformCircleToPolygon( aCornerBuffer, padShapePos, dx, aError );
}
break;
case PAD_SHAPE_OVAL:
// An oval pad has the same shape as a segment with rounded ends
{
int width;
wxPoint shape_offset;
if( dy > dx ) // Oval pad X/Y ratio for choosing translation axis
{
shape_offset.y = dy - dx;
width = dx * 2;
}
else //if( dy <= dx )
{
shape_offset.x = dy - dx;
width = dy * 2;
}
RotatePoint( &shape_offset, angle );
wxPoint start = padShapePos - shape_offset;
wxPoint end = padShapePos + shape_offset;
TransformOvalClearanceToPolygon( aCornerBuffer, start, end, width, aError );
}
break;
case PAD_SHAPE_TRAPEZOID:
case PAD_SHAPE_RECT:
{
wxPoint corners[4];
BuildPadPolygon( corners, wxSize( 0, 0 ), angle );
SHAPE_POLY_SET outline;
outline.NewOutline();
for( int ii = 0; ii < 4; ii++ )
{
corners[ii] += padShapePos;
outline.Append( corners[ii].x, corners[ii].y );
}
int numSegs = std::max( GetArcToSegmentCount( aClearanceValue, aError, 360.0 ), 6 );
double correction = GetCircletoPolyCorrectionFactor( numSegs );
int rounding_radius = KiROUND( aClearanceValue * correction );
outline.Inflate( rounding_radius, numSegs );
aCornerBuffer.Append( outline );
}
break;
case PAD_SHAPE_CHAMFERED_RECT:
case PAD_SHAPE_ROUNDRECT:
{
SHAPE_POLY_SET outline;
int radius = GetRoundRectCornerRadius() + aClearanceValue;
int numSegs = std::max( GetArcToSegmentCount( radius, aError, 360.0 ), 6 );
double correction = GetCircletoPolyCorrectionFactor( numSegs );
int clearance = KiROUND( aClearanceValue * correction );
int rounding_radius = GetRoundRectCornerRadius() + clearance;
wxSize shapesize( m_Size );
shapesize.x += clearance * 2;
shapesize.y += clearance * 2;
bool doChamfer = GetShape() == PAD_SHAPE_CHAMFERED_RECT;
TransformRoundChamferedRectToPolygon( outline, padShapePos, shapesize, angle,
rounding_radius, doChamfer ? GetChamferRectRatio() : 0.0,
doChamfer ? GetChamferPositions() : 0, aError );
aCornerBuffer.Append( outline );
}
break;
case PAD_SHAPE_CUSTOM:
{
int numSegs = std::max( GetArcToSegmentCount( aClearanceValue, aError, 360.0 ), 6 );
double correction = GetCircletoPolyCorrectionFactor( numSegs );
int clearance = KiROUND( aClearanceValue * correction );
SHAPE_POLY_SET outline; // Will contain the corners in board coordinates
outline.Append( m_customShapeAsPolygon );
CustomShapeAsPolygonToBoardPosition( &outline, GetPosition(), GetOrientation() );
outline.Simplify( SHAPE_POLY_SET::PM_FAST );
outline.Inflate( clearance, numSegs );
outline.Fracture( SHAPE_POLY_SET::PM_FAST );
aCornerBuffer.Append( outline );
}
break;
}
}
/**
* Function ComputeRawFilledAreas
* Supports a min thickness area constraint.
* Add non copper areas polygons (pads and tracks with clearance)
* to the filled copper area found
* in BuildFilledPolysListData after calculating filled areas in a zone
* Non filled copper areas are pads and track and their clearance areas
* The filled copper area must be computed just before.
* BuildFilledPolysListData() call this function just after creating the
* filled copper area polygon (without clearance areas)
* to do that this function:
* 1 - Creates the main outline (zone outline) using a correction to shrink the resulting area
* with m_ZoneMinThickness/2 value.
* The result is areas with a margin of m_ZoneMinThickness/2
* When drawing outline with segments having a thickness of m_ZoneMinThickness, the
* outlines will match exactly the initial outlines
* 3 - Add all non filled areas (pads, tracks) in group B with a clearance of m_Clearance +
* m_ZoneMinThickness/2
* in a buffer
* - If Thermal shapes are wanted, add non filled area, in order to create these thermal shapes
* 4 - calculates the polygon A - B
* 5 - put resulting list of polygons (filled areas) in m_FilledPolysList
* This zone contains pads with the same net.
* 6 - Remove insulated copper islands
* 7 - If Thermal shapes are wanted, remove unconnected stubs in thermal shapes:
* creates a buffer of polygons corresponding to stubs to remove
* sub them to the filled areas.
* Remove new insulated copper islands
*/
void ZONE_FILLER::computeRawFilledAreas( const ZONE_CONTAINER* aZone,
const SHAPE_POLY_SET& aSmoothedOutline,
SHAPE_POLY_SET& aRawPolys,
SHAPE_POLY_SET& aFinalPolys ) const
{
int segsPerCircle;
double correctionFactor;
int outline_half_thickness = aZone->GetMinThickness() / 2;
std::unique_ptr<SHAPE_FILE_IO> dumper( new SHAPE_FILE_IO(
s_DumpZonesWhenFilling ? "zones_dump.txt" : "", SHAPE_FILE_IO::IOM_APPEND ) );
// Set the number of segments in arc approximations
if( aZone->GetArcSegmentCount() == ARC_APPROX_SEGMENTS_COUNT_HIGHT_DEF )
segsPerCircle = ARC_APPROX_SEGMENTS_COUNT_HIGHT_DEF;
else
segsPerCircle = ARC_APPROX_SEGMENTS_COUNT_LOW_DEF;
/* calculates the coeff to compensate radius reduction of holes clearance
* due to the segment approx.
* For a circle the min radius is radius * cos( 2PI / s_CircleToSegmentsCount / 2)
* s_Correction is 1 /cos( PI/s_CircleToSegmentsCount )
*/
correctionFactor = 1.0 / cos( M_PI / (double) segsPerCircle );
if( s_DumpZonesWhenFilling )
dumper->BeginGroup( "clipper-zone" );
SHAPE_POLY_SET solidAreas = aSmoothedOutline;
solidAreas.Inflate( -outline_half_thickness, segsPerCircle );
solidAreas.Simplify( SHAPE_POLY_SET::PM_FAST );
SHAPE_POLY_SET holes;
if( s_DumpZonesWhenFilling )
dumper->Write( &solidAreas, "solid-areas" );
buildZoneFeatureHoleList( aZone, holes );
if( s_DumpZonesWhenFilling )
dumper->Write( &holes, "feature-holes" );
holes.Simplify( SHAPE_POLY_SET::PM_FAST );
if( s_DumpZonesWhenFilling )
dumper->Write( &holes, "feature-holes-postsimplify" );
// Generate the filled areas (currently, without thermal shapes, which will
// be created later).
// Use SHAPE_POLY_SET::PM_STRICTLY_SIMPLE to generate strictly simple polygons
// needed by Gerber files and Fracture()
solidAreas.BooleanSubtract( holes, SHAPE_POLY_SET::PM_STRICTLY_SIMPLE );
if( s_DumpZonesWhenFilling )
dumper->Write( &solidAreas, "solid-areas-minus-holes" );
SHAPE_POLY_SET areas_fractured = solidAreas;
areas_fractured.Fracture( SHAPE_POLY_SET::PM_FAST );
if( s_DumpZonesWhenFilling )
dumper->Write( &areas_fractured, "areas_fractured" );
aFinalPolys = areas_fractured;
SHAPE_POLY_SET thermalHoles;
// Test thermal stubs connections and add polygons to remove unconnected stubs.
// (this is a refinement for thermal relief shapes)
if( aZone->GetNetCode() > 0 )
{
buildUnconnectedThermalStubsPolygonList( thermalHoles, aZone, aFinalPolys,
correctionFactor, s_thermalRot );
}
// remove copper areas corresponding to not connected stubs
if( !thermalHoles.IsEmpty() )
{
thermalHoles.Simplify( SHAPE_POLY_SET::PM_FAST );
// Remove unconnected stubs. Use SHAPE_POLY_SET::PM_STRICTLY_SIMPLE to
// generate strictly simple polygons
// needed by Gerber files and Fracture()
solidAreas.BooleanSubtract( thermalHoles, SHAPE_POLY_SET::PM_STRICTLY_SIMPLE );
if( s_DumpZonesWhenFilling )
dumper->Write( &thermalHoles, "thermal-holes" );
// put these areas in m_FilledPolysList
SHAPE_POLY_SET th_fractured = solidAreas;
th_fractured.Fracture( SHAPE_POLY_SET::PM_FAST );
if( s_DumpZonesWhenFilling )
dumper->Write( &th_fractured, "th_fractured" );
aFinalPolys = th_fractured;
}
aRawPolys = aFinalPolys;
if( s_DumpZonesWhenFilling )
dumper->EndGroup();
}
bool D_PAD::buildCustomPadPolygon( SHAPE_POLY_SET* aMergedPolygon, int aError )
{
SHAPE_POLY_SET aux_polyset;
for( unsigned cnt = 0; cnt < m_basicShapes.size(); ++cnt )
{
const PAD_CS_PRIMITIVE& bshape = m_basicShapes[cnt];
switch( bshape.m_Shape )
{
case S_CURVE:
{
std::vector<wxPoint> ctrlPoints = { bshape.m_Start, bshape.m_Ctrl1, bshape.m_Ctrl2, bshape.m_End };
BEZIER_POLY converter( ctrlPoints );
std::vector< wxPoint> poly;
converter.GetPoly( poly, bshape.m_Thickness );
for( unsigned ii = 1; ii < poly.size(); ii++ )
{
TransformRoundedEndsSegmentToPolygon(
aux_polyset, poly[ii - 1], poly[ii], aError, bshape.m_Thickness );
}
break;
}
case S_SEGMENT: // usual segment : line with rounded ends
{
TransformRoundedEndsSegmentToPolygon(
aux_polyset, bshape.m_Start, bshape.m_End, aError, bshape.m_Thickness );
break;
}
case S_ARC: // Arc with rounded ends
{
TransformArcToPolygon( aux_polyset, bshape.m_Start, bshape.m_End, bshape.m_ArcAngle,
aError, bshape.m_Thickness );
break;
}
case S_CIRCLE: // ring or circle
{
if( bshape.m_Thickness ) // ring
TransformRingToPolygon(
aux_polyset, bshape.m_Start, bshape.m_Radius, aError, bshape.m_Thickness );
else // Filled circle
TransformCircleToPolygon( aux_polyset, bshape.m_Start, bshape.m_Radius, aError );
break;
}
case S_POLYGON: // polygon
if( bshape.m_Poly.size() < 2 )
break; // Malformed polygon.
{
// Insert the polygon:
const std::vector< wxPoint>& poly = bshape.m_Poly;
aux_polyset.NewOutline();
if( bshape.m_Thickness )
{
SHAPE_POLY_SET polyset;
polyset.NewOutline();
for( unsigned ii = 0; ii < poly.size(); ii++ )
{
polyset.Append( poly[ii].x, poly[ii].y );
}
int numSegs = std::max(
GetArcToSegmentCount( bshape.m_Thickness / 2, aError, 360.0 ), 6 );
polyset.Inflate( bshape.m_Thickness / 2, numSegs );
aux_polyset.Append( polyset );
}
else
for( unsigned ii = 0; ii < poly.size(); ii++ )
aux_polyset.Append( poly[ii].x, poly[ii].y );
}
break;
default:
break;
}
}
aux_polyset.Simplify( SHAPE_POLY_SET::PM_FAST );
// Merge all polygons with the initial pad anchor shape
if( aux_polyset.OutlineCount() )
{
aMergedPolygon->BooleanAdd( aux_polyset, SHAPE_POLY_SET::PM_STRICTLY_SIMPLE );
aMergedPolygon->Fracture( SHAPE_POLY_SET::PM_STRICTLY_SIMPLE );
}
return aMergedPolygon->OutlineCount() <= 1;
}
void PCB_PAINTER::draw( const D_PAD* aPad, int aLayer )
{
PAD_SHAPE_T shape;
double m, n;
double orientation = aPad->GetOrientation();
// Draw description layer
if( IsNetnameLayer( aLayer ) )
{
VECTOR2D position( aPad->ShapePos() );
// Is anything that we can display enabled?
if( m_pcbSettings.m_netNamesOnPads || m_pcbSettings.m_padNumbers )
{
bool displayNetname = ( m_pcbSettings.m_netNamesOnPads && !aPad->GetNetname().empty() );
VECTOR2D padsize = VECTOR2D( aPad->GetSize() );
double maxSize = PCB_RENDER_SETTINGS::MAX_FONT_SIZE;
double size = padsize.y;
// Keep the size ratio for the font, but make it smaller
if( padsize.x < padsize.y )
{
orientation += 900.0;
size = padsize.x;
std::swap( padsize.x, padsize.y );
}
else if( padsize.x == padsize.y )
{
// If the text is displayed on a symmetrical pad, do not rotate it
orientation = 0.0;
}
// Font size limits
if( size > maxSize )
size = maxSize;
m_gal->Save();
m_gal->Translate( position );
// do not display descriptions upside down
NORMALIZE_ANGLE_90( orientation );
m_gal->Rotate( DECIDEG2RAD( -orientation ) );
// Default font settings
m_gal->SetHorizontalJustify( GR_TEXT_HJUSTIFY_CENTER );
m_gal->SetVerticalJustify( GR_TEXT_VJUSTIFY_CENTER );
m_gal->SetFontBold( false );
m_gal->SetFontItalic( false );
m_gal->SetTextMirrored( false );
m_gal->SetStrokeColor( m_pcbSettings.GetColor( NULL, aLayer ) );
m_gal->SetIsStroke( true );
m_gal->SetIsFill( false );
// Set the text position to the pad shape position (the pad position is not the best place)
VECTOR2D textpos( 0.0, 0.0 );
// Divide the space, to display both pad numbers and netnames
// and set the Y text position to display 2 lines
if( displayNetname && m_pcbSettings.m_padNumbers )
{
size = size / 2.0;
textpos.y = size / 2.0;
}
if( displayNetname )
{
// calculate the size of net name text:
double tsize = 1.5 * padsize.x / aPad->GetShortNetname().Length();
tsize = std::min( tsize, size );
// Use a smaller text size to handle interline, pen size..
tsize *= 0.7;
VECTOR2D namesize( tsize, tsize );
m_gal->SetGlyphSize( namesize );
m_gal->SetLineWidth( namesize.x / 12.0 );
m_gal->BitmapText( aPad->GetShortNetname(), textpos, 0.0 );
}
if( m_pcbSettings.m_padNumbers )
{
const wxString& padName = aPad->GetName();
textpos.y = -textpos.y;
double tsize = 1.5 * padsize.x / padName.Length();
tsize = std::min( tsize, size );
// Use a smaller text size to handle interline, pen size..
tsize *= 0.7;
tsize = std::min( tsize, size );
VECTOR2D numsize( tsize, tsize );
m_gal->SetGlyphSize( numsize );
m_gal->SetLineWidth( numsize.x / 12.0 );
m_gal->BitmapText( padName, textpos, 0.0 );
}
m_gal->Restore();
}
return;
}
// Pad drawing
COLOR4D color;
// Pad holes color is type specific
if( aLayer == LAYER_PADS_PLATEDHOLES || aLayer == LAYER_NON_PLATEDHOLES )
{
// Hole color is the background color for plated holes, but a specific color
// for not plated holes (LAYER_NON_PLATEDHOLES color layer )
if( aPad->GetAttribute() == PAD_ATTRIB_HOLE_NOT_PLATED )
color = m_pcbSettings.GetColor( nullptr, LAYER_NON_PLATEDHOLES );
// Don't let pads that *should* be NPTH get lost
else if( aPad->PadShouldBeNPTH() )
color = m_pcbSettings.GetColor( aPad, aLayer );
else
color = m_pcbSettings.GetBackgroundColor();
}
else
{
color = m_pcbSettings.GetColor( aPad, aLayer );
}
VECTOR2D size;
if( m_pcbSettings.m_sketchMode[LAYER_PADS_TH] )
{
// Outline mode
m_gal->SetIsFill( false );
m_gal->SetIsStroke( true );
m_gal->SetLineWidth( m_pcbSettings.m_outlineWidth );
m_gal->SetStrokeColor( color );
}
else
{
// Filled mode
m_gal->SetIsFill( true );
m_gal->SetIsStroke( false );
m_gal->SetFillColor( color );
}
m_gal->Save();
m_gal->Translate( VECTOR2D( aPad->GetPosition() ) );
m_gal->Rotate( -aPad->GetOrientationRadians() );
int custom_margin = 0; // a clearance/margin for custom shape, for solder paste/mask
// Choose drawing settings depending on if we are drawing a pad itself or a hole
if( aLayer == LAYER_PADS_PLATEDHOLES || aLayer == LAYER_NON_PLATEDHOLES )
{
// Drawing hole: has same shape as PAD_CIRCLE or PAD_OVAL
size = getDrillSize( aPad ) / 2.0;
shape = getDrillShape( aPad ) == PAD_DRILL_SHAPE_OBLONG ? PAD_SHAPE_OVAL : PAD_SHAPE_CIRCLE;
}
else if( aLayer == F_Mask || aLayer == B_Mask )
{
// Drawing soldermask
int soldermaskMargin = aPad->GetSolderMaskMargin();
custom_margin = soldermaskMargin;
m_gal->Translate( VECTOR2D( aPad->GetOffset() ) );
size = VECTOR2D( aPad->GetSize().x / 2.0 + soldermaskMargin,
aPad->GetSize().y / 2.0 + soldermaskMargin );
shape = aPad->GetShape();
}
else if( aLayer == F_Paste || aLayer == B_Paste )
{
// Drawing solderpaste
wxSize solderpasteMargin = aPad->GetSolderPasteMargin();
// try to find a clearance which can be used for custom shapes
custom_margin = solderpasteMargin.x;
m_gal->Translate( VECTOR2D( aPad->GetOffset() ) );
size = VECTOR2D( aPad->GetSize().x / 2.0 + solderpasteMargin.x,
aPad->GetSize().y / 2.0 + solderpasteMargin.y );
shape = aPad->GetShape();
}
else
{
// Drawing every kind of pad
m_gal->Translate( VECTOR2D( aPad->GetOffset() ) );
size = VECTOR2D( aPad->GetSize() ) / 2.0;
shape = aPad->GetShape();
}
switch( shape )
{
case PAD_SHAPE_OVAL:
if( size.y >= size.x )
{
m = ( size.y - size.x );
n = size.x;
m_gal->DrawArc( VECTOR2D( 0, -m ), n, -M_PI, 0 );
m_gal->DrawArc( VECTOR2D( 0, m ), n, M_PI, 0 );
if( m_pcbSettings.m_sketchMode[LAYER_PADS_TH] )
{
m_gal->DrawLine( VECTOR2D( -n, -m ), VECTOR2D( -n, m ) );
m_gal->DrawLine( VECTOR2D( n, -m ), VECTOR2D( n, m ) );
}
else
{
m_gal->DrawRectangle( VECTOR2D( -n, -m ), VECTOR2D( n, m ) );
}
}
else
{
m = ( size.x - size.y );
n = size.y;
m_gal->DrawArc( VECTOR2D( -m, 0 ), n, M_PI / 2, 3 * M_PI / 2 );
m_gal->DrawArc( VECTOR2D( m, 0 ), n, M_PI / 2, -M_PI / 2 );
if( m_pcbSettings.m_sketchMode[LAYER_PADS_TH] )
{
m_gal->DrawLine( VECTOR2D( -m, -n ), VECTOR2D( m, -n ) );
m_gal->DrawLine( VECTOR2D( -m, n ), VECTOR2D( m, n ) );
}
else
{
m_gal->DrawRectangle( VECTOR2D( -m, -n ), VECTOR2D( m, n ) );
}
}
break;
case PAD_SHAPE_RECT:
m_gal->DrawRectangle( VECTOR2D( -size.x, -size.y ), VECTOR2D( size.x, size.y ) );
break;
case PAD_SHAPE_ROUNDRECT:
{
SHAPE_POLY_SET polySet;
wxSize prsize( size.x * 2, size.y * 2 );
const int segmentToCircleCount = 64;
const int corner_radius = aPad->GetRoundRectCornerRadius( prsize );
TransformRoundRectToPolygon( polySet, wxPoint( 0, 0 ), prsize,
0.0, corner_radius, segmentToCircleCount );
m_gal->DrawPolygon( polySet );
break;
}
case PAD_SHAPE_CUSTOM:
{ // Draw the complex custom shape
// Use solder[Paste/Mask]size or pad size to build pad shape
// however, solder[Paste/Mask] size has no actual meaning for a
// custom shape, because it is a set of basic shapes
// We use the custom_margin (good for solder mask, but approximative
// for solder paste).
if( custom_margin )
{
SHAPE_POLY_SET outline;
outline.Append( aPad->GetCustomShapeAsPolygon() );
const int segmentToCircleCount = ARC_APPROX_SEGMENTS_COUNT_HIGH_DEF;
outline.Inflate( custom_margin, segmentToCircleCount );
m_gal->DrawPolygon( outline );
}
else
{
// Draw the polygon: only one polygon is expected
// However we provide a multi polygon shape drawing
// ( for the future or to show even an incorrect shape
m_gal->DrawPolygon( aPad->GetCustomShapeAsPolygon() );
}
}
break;
case PAD_SHAPE_TRAPEZOID:
{
std::deque<VECTOR2D> pointList;
wxPoint corners[4];
VECTOR2D padSize = VECTOR2D( aPad->GetSize().x, aPad->GetSize().y ) / 2;
VECTOR2D deltaPadSize = size - padSize; // = solder[Paste/Mask]Margin or 0
aPad->BuildPadPolygon( corners, wxSize( deltaPadSize.x, deltaPadSize.y ), 0.0 );
SHAPE_POLY_SET polySet;
polySet.NewOutline();
polySet.Append( VECTOR2I( corners[0] ) );
polySet.Append( VECTOR2I( corners[1] ) );
polySet.Append( VECTOR2I( corners[2] ) );
polySet.Append( VECTOR2I( corners[3] ) );
m_gal->DrawPolygon( polySet );
}
break;
case PAD_SHAPE_CIRCLE:
m_gal->DrawCircle( VECTOR2D( 0.0, 0.0 ), size.x );
break;
}
m_gal->Restore();
// Clearance lines
// It has to be called after GAL::Restore() as TransformShapeWithClearanceToPolygon()
// returns already transformed coordinates
constexpr int clearanceFlags = /*PCB_RENDER_SETTINGS::CL_EXISTING |*/ PCB_RENDER_SETTINGS::CL_PADS;
if( ( m_pcbSettings.m_clearance & clearanceFlags ) == clearanceFlags
&& ( aLayer == LAYER_PAD_FR
|| aLayer == LAYER_PAD_BK
|| aLayer == LAYER_PADS_TH ) )
{
SHAPE_POLY_SET polySet;
constexpr int SEGCOUNT = 64;
aPad->TransformShapeWithClearanceToPolygon( polySet, aPad->GetClearance(), SEGCOUNT, 1.0 );
m_gal->SetLineWidth( m_pcbSettings.m_outlineWidth );
m_gal->SetIsStroke( true );
m_gal->SetIsFill( false );
m_gal->SetStrokeColor( color );
m_gal->DrawPolygon( polySet );
}
}
/* Function TransformShapeWithClearanceToPolygon
* Convert the pad shape to a closed polygon
* Used in filling zones calculations and 3D view generation
* Circles and arcs are approximated by segments
* aCornerBuffer = a SHAPE_POLY_SET to store the polygon corners
* aClearanceValue = the clearance around the pad
* aCircleToSegmentsCount = the number of segments to approximate a circle
* aCorrectionFactor = the correction to apply to circles radius to keep
* clearance when the circle is approximated by segment bigger or equal
* to the real clearance value (usually near from 1.0)
*/
void D_PAD:: TransformShapeWithClearanceToPolygon( SHAPE_POLY_SET& aCornerBuffer,
int aClearanceValue,
int aCircleToSegmentsCount,
double aCorrectionFactor ) const
{
double angle = m_Orient;
int dx = (m_Size.x / 2) + aClearanceValue;
int dy = (m_Size.y / 2) + aClearanceValue;
wxPoint PadShapePos = ShapePos(); /* Note: for pad having a shape offset,
* the pad position is NOT the shape position */
switch( GetShape() )
{
case PAD_SHAPE_CIRCLE:
dx = KiROUND( dx * aCorrectionFactor );
TransformCircleToPolygon( aCornerBuffer, PadShapePos, dx,
aCircleToSegmentsCount );
break;
case PAD_SHAPE_OVAL:
// An oval pad has the same shape as a segment with rounded ends
{
int width;
wxPoint shape_offset;
if( dy > dx ) // Oval pad X/Y ratio for choosing translation axis
{
dy = KiROUND( dy * aCorrectionFactor );
shape_offset.y = dy - dx;
width = dx * 2;
}
else //if( dy <= dx )
{
dx = KiROUND( dx * aCorrectionFactor );
shape_offset.x = dy - dx;
width = dy * 2;
}
RotatePoint( &shape_offset, angle );
wxPoint start = PadShapePos - shape_offset;
wxPoint end = PadShapePos + shape_offset;
TransformRoundedEndsSegmentToPolygon( aCornerBuffer, start, end,
aCircleToSegmentsCount, width );
}
break;
case PAD_SHAPE_TRAPEZOID:
case PAD_SHAPE_RECT:
{
wxPoint corners[4];
BuildPadPolygon( corners, wxSize( 0, 0 ), angle );
SHAPE_POLY_SET outline;
outline.NewOutline();
for( int ii = 0; ii < 4; ii++ )
{
corners[ii] += PadShapePos;
outline.Append( corners[ii].x, corners[ii].y );
}
double rounding_radius = aClearanceValue * aCorrectionFactor;
outline.Inflate( (int) rounding_radius, aCircleToSegmentsCount );
aCornerBuffer.Append( outline );
}
break;
}
}
/* Plot a solder mask layer.
* Solder mask layers have a minimum thickness value and cannot be drawn like standard layers,
* unless the minimum thickness is 0.
* Currently the algo is:
* 1 - build all pad shapes as polygons with a size inflated by
* mask clearance + (min width solder mask /2)
* 2 - Merge shapes
* 3 - deflate result by (min width solder mask /2)
* 4 - oring result by all pad shapes as polygons with a size inflated by
* mask clearance only (because deflate sometimes creates shape artifacts)
* 5 - draw result as polygons
*
* TODO:
* make this calculation only for shapes with clearance near than (min width solder mask)
* (using DRC algo)
* plot all other shapes by flashing the basing shape
* (shapes will be better, and calculations faster)
*/
void PlotSolderMaskLayer( BOARD *aBoard, PLOTTER* aPlotter,
LSET aLayerMask, const PCB_PLOT_PARAMS& aPlotOpt,
int aMinThickness )
{
LAYER_ID layer = aLayerMask[B_Mask] ? B_Mask : F_Mask;
int inflate = aMinThickness/2;
BRDITEMS_PLOTTER itemplotter( aPlotter, aBoard, aPlotOpt );
itemplotter.SetLayerSet( aLayerMask );
// Plot edge layer and graphic items
// They do not have a solder Mask margin, because they are only graphic items
// on this layer (like logos), not actually areas around pads.
itemplotter.PlotBoardGraphicItems();
for( MODULE* module = aBoard->m_Modules; module; module = module->Next() )
{
for( BOARD_ITEM* item = module->GraphicalItems(); item; item = item->Next() )
{
if( layer != item->GetLayer() )
continue;
switch( item->Type() )
{
case PCB_MODULE_EDGE_T:
itemplotter.Plot_1_EdgeModule( (EDGE_MODULE*) item );
break;
default:
break;
}
}
}
// Build polygons for each pad shape.
// the size of the shape on solder mask should be:
// size of pad + clearance around the pad.
// clearance = solder mask clearance + extra margin
// extra margin is half the min width for solder mask
// This extra margin is used to merge too close shapes
// (distance < aMinThickness), and will be removed when creating
// the actual shapes
SHAPE_POLY_SET areas; // Contains shapes to plot
SHAPE_POLY_SET initialPolys; // Contains exact shapes to plot
/* calculates the coeff to compensate radius reduction of holes clearance
* due to the segment approx ( 1 /cos( PI/circleToSegmentsCount )
*/
int circleToSegmentsCount = 32;
double correction = 1.0 / cos( M_PI / circleToSegmentsCount );
// Plot pads
for( MODULE* module = aBoard->m_Modules; module; module = module->Next() )
{
// add shapes with exact size
module->TransformPadsShapesWithClearanceToPolygon( layer,
initialPolys, 0,
circleToSegmentsCount, correction );
// add shapes inflated by aMinThickness/2
module->TransformPadsShapesWithClearanceToPolygon( layer,
areas, inflate,
circleToSegmentsCount, correction );
}
// Plot vias on solder masks, if aPlotOpt.GetPlotViaOnMaskLayer() is true,
if( aPlotOpt.GetPlotViaOnMaskLayer() )
{
// The current layer is a solder mask,
// use the global mask clearance for vias
int via_clearance = aBoard->GetDesignSettings().m_SolderMaskMargin;
int via_margin = via_clearance + inflate;
for( TRACK* track = aBoard->m_Track; track; track = track->Next() )
{
const VIA* via = dyn_cast<const VIA*>( track );
if( !via )
continue;
// vias are plotted only if they are on the corresponding
// external copper layer
LSET via_set = via->GetLayerSet();
if( via_set[B_Cu] )
via_set.set( B_Mask );
if( via_set[F_Cu] )
via_set.set( F_Mask );
if( !( via_set & aLayerMask ).any() )
continue;
via->TransformShapeWithClearanceToPolygon( areas, via_margin,
circleToSegmentsCount,
correction );
via->TransformShapeWithClearanceToPolygon( initialPolys, via_clearance,
circleToSegmentsCount,
correction );
}
}
// Add filled zone areas.
#if 0 // Set to 1 if a solder mask margin must be applied to zones on solder mask
int zone_margin = aBoard->GetDesignSettings().m_SolderMaskMargin;
#else
int zone_margin = 0;
#endif
for( int ii = 0; ii < aBoard->GetAreaCount(); ii++ )
{
ZONE_CONTAINER* zone = aBoard->GetArea( ii );
if( zone->GetLayer() != layer )
continue;
zone->TransformOutlinesShapeWithClearanceToPolygon( areas,
inflate+zone_margin, false );
zone->TransformOutlinesShapeWithClearanceToPolygon( initialPolys,
zone_margin, false );
}
// To avoid a lot of code, use a ZONE_CONTAINER
// to handle and plot polygons, because our polygons look exactly like
// filled areas in zones
// Note, also this code is not optimized: it creates a lot of copy/duplicate data
// However it is not complex, and fast enough for plot purposes (copy/convert data
// is only a very small calculation time for these calculations)
ZONE_CONTAINER zone( aBoard );
zone.SetArcSegmentCount( 32 );
zone.SetMinThickness( 0 ); // trace polygons only
zone.SetLayer ( layer );
areas.BooleanAdd( initialPolys );
areas.Inflate( -inflate, circleToSegmentsCount );
// Combine the current areas to initial areas. This is mandatory because
// inflate/deflate transform is not perfect, and we want the initial areas perfectly kept
areas.BooleanAdd( initialPolys );
areas.Fracture();
zone.AddFilledPolysList( areas );
itemplotter.PlotFilledAreas( &zone );
}
void TransformRoundChamferedRectToPolygon( SHAPE_POLY_SET& aCornerBuffer,
const wxPoint& aPosition, const wxSize& aSize,
double aRotation, int aCornerRadius,
double aChamferRatio, int aChamferCorners,
int aCircleToSegmentsCount )
{
// Build the basic shape in orientation 0.0, position 0,0 for chamfered corners
// or in actual position/orientation for round rect only
wxPoint corners[4];
GetRoundRectCornerCenters( corners, aCornerRadius,
aChamferCorners ? wxPoint( 0, 0 ) : aPosition,
aSize, aChamferCorners ? 0.0 : aRotation );
SHAPE_POLY_SET outline;
outline.NewOutline();
for( int ii = 0; ii < 4; ++ii )
outline.Append( corners[ii].x, corners[ii].y );
outline.Inflate( aCornerRadius, aCircleToSegmentsCount );
if( aChamferCorners == RECT_NO_CHAMFER ) // no chamfer
{
// Add the outline:
aCornerBuffer.Append( outline );
return;
}
// Now we have the round rect outline, in position 0,0 orientation 0.0.
// Chamfer the corner(s).
int chamfer_value = aChamferRatio * std::min( aSize.x, aSize.y );
SHAPE_POLY_SET chamfered_corner; // corner shape for the current corner to chamfer
int corner_id[4] =
{
RECT_CHAMFER_TOP_LEFT, RECT_CHAMFER_TOP_RIGHT,
RECT_CHAMFER_BOTTOM_LEFT, RECT_CHAMFER_BOTTOM_RIGHT
};
// Depending on the corner position, signX[] and signY[] give the sign of chamfer
// coordinates relative to the corner position
// The first corner is the top left corner, then top right, bottom left and bottom right
int signX[4] = {1, -1, 1,-1 };
int signY[4] = {1, 1, -1,-1 };
for( int ii = 0; ii < 4; ii++ )
{
if( (corner_id[ii] & aChamferCorners) == 0 )
continue;
VECTOR2I corner_pos( -signX[ii]*aSize.x/2, -signY[ii]*aSize.y/2 );
if( aCornerRadius )
{
// We recreate a rectangular area covering the full rounded corner (max size = aSize/2)
// to rebuild the corner before chamfering, to be sure the rounded corner shape does not
// overlap the chamfered corner shape:
chamfered_corner.RemoveAllContours();
chamfered_corner.NewOutline();
chamfered_corner.Append( 0, 0 );
chamfered_corner.Append( 0, signY[ii]*aSize.y/2 );
chamfered_corner.Append( signX[ii]*aSize.x/2, signY[ii]*aSize.y/2 );
chamfered_corner.Append( signX[ii]*aSize.x/2, 0 );
chamfered_corner.Move( corner_pos );
outline.BooleanAdd( chamfered_corner, SHAPE_POLY_SET::PM_STRICTLY_SIMPLE );
}
// Now chamfer this corner
chamfered_corner.RemoveAllContours();
chamfered_corner.NewOutline();
chamfered_corner.Append( 0, 0 );
chamfered_corner.Append( 0, signY[ii]*chamfer_value );
chamfered_corner.Append( signX[ii]*chamfer_value, 0 );
chamfered_corner.Move( corner_pos );
outline.BooleanSubtract( chamfered_corner, SHAPE_POLY_SET::PM_STRICTLY_SIMPLE );
}
// Rotate and move the outline:
if( aRotation != 0.0 )
outline.Rotate( DECIDEG2RAD( -aRotation ), VECTOR2I( 0, 0 ) );
outline.Move( VECTOR2I( aPosition ) );
// Add the outline:
aCornerBuffer.Append( outline );
}