/* generate shapes of graphic items (outlines) on layer aLayer as polygons,
* and adds these polygons to aCornerBuffer
* aCornerBuffer = the buffer to store polygons
* aInflateValue = a value to inflate shapes
* aCircleToSegmentsCount = number of segments to approximate a circle
* aCorrectionFactor = the correction to apply to the circle radius
* to generate the polygon.
* if aCorrectionFactor = 1.0, the polygon is inside the circle
* the radius of circle approximated by segments is
* initial radius * aCorrectionFactor
*/
void MODULE::TransformGraphicShapesWithClearanceToPolygonSet(
LAYER_NUM aLayer,
CPOLYGONS_LIST& aCornerBuffer,
int aInflateValue,
int aCircleToSegmentsCount,
double aCorrectionFactor )
{
std::vector<TEXTE_MODULE *> texts; // List of TEXTE_MODULE to convert
EDGE_MODULE* outline;
for( EDA_ITEM* item = GraphicalItems(); item != NULL; item = item->Next() )
{
switch( item->Type() )
{
case PCB_MODULE_TEXT_T:
if( ((TEXTE_MODULE*)item)->GetLayer() == aLayer )
texts.push_back( (TEXTE_MODULE *) item );
break;
case PCB_MODULE_EDGE_T:
outline = (EDGE_MODULE*) item;
if( outline->GetLayer() != aLayer )
break;
switch( outline->GetShape() )
{
case S_SEGMENT:
TransformRoundedEndsSegmentToPolygon( aCornerBuffer,
outline->GetStart(),
outline->GetEnd(),
aCircleToSegmentsCount,
outline->GetWidth() );
break;
case S_CIRCLE:
TransformRingToPolygon( aCornerBuffer, outline->GetCenter(),
outline->GetRadius(), aCircleToSegmentsCount,
outline->GetWidth() );
break;
case S_ARC:
TransformArcToPolygon( aCornerBuffer,
outline->GetCenter(), outline->GetArcStart(),
outline->GetAngle(),
aCircleToSegmentsCount, outline->GetWidth() );
break;
case S_POLYGON:
// for outline shape = S_POLYGON:
// We must compute true coordinates from m_PolyPoints
// which are relative to module position and module orientation = 0
for( unsigned ii = 0; ii < outline->GetPolyPoints().size(); ii++ )
{
CPolyPt corner( outline->GetPolyPoints()[ii] );
RotatePoint( &corner.x, &corner.y, GetOrientation() );
corner.x += GetPosition().x;
corner.y += GetPosition().y;
aCornerBuffer.Append( corner );
}
aCornerBuffer.CloseLastContour();
break;
default:
DBG( printf( "Error: Shape %d not implemented!\n",
outline->GetShape() ); )
break;
}
break;
default:
break;
}
}
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;
}
/**
* Function TransformShapeWithClearanceToPolygon
* Convert the track shape to a closed polygon
* Used in filling zones calculations
* Circles and arcs are approximated by segments
* @param aCornerBuffer = a buffer to store the polygon
* @param aClearanceValue = the clearance around the pad
* @param aCircleToSegmentsCount = the number of segments to approximate a circle
* @param aCorrectionFactor = the correction to apply to circles radius to keep
* clearance when the circle is approxiamted by segment bigger or equal
* to the real clearance value (usually near from 1.0)
*/
void DRAWSEGMENT::TransformShapeWithClearanceToPolygon( SHAPE_POLY_SET& aCornerBuffer,
int aClearanceValue,
int aCircleToSegmentsCount,
double aCorrectionFactor ) const
{
// The full width of the lines to create:
int linewidth = m_Width + (2 * aClearanceValue);
switch( m_Shape )
{
case S_CIRCLE:
TransformRingToPolygon( aCornerBuffer, GetCenter(), GetRadius(),
aCircleToSegmentsCount, linewidth ) ;
break;
case S_ARC:
TransformArcToPolygon( aCornerBuffer, GetCenter(),
GetArcStart(), m_Angle,
aCircleToSegmentsCount, linewidth );
break;
case S_SEGMENT:
TransformRoundedEndsSegmentToPolygon( aCornerBuffer, m_Start, m_End,
aCircleToSegmentsCount, linewidth );
break;
case S_POLYGON:
if ( GetPolyPoints().size() < 2 )
break; // Malformed polygon.
{
// The polygon is expected to be a simple polygon
// not self intersecting, no hole.
MODULE* module = GetParentModule(); // NULL for items not in footprints
double orientation = module ? module->GetOrientation() : 0.0;
// Build the polygon with the actual position and orientation:
std::vector< wxPoint> poly;
poly = GetPolyPoints();
for( unsigned ii = 0; ii < poly.size(); ii++ )
{
RotatePoint( &poly[ii], orientation );
poly[ii] += GetPosition();
}
// Generate polygons for the outline + clearance
// This code is compatible with a polygon with holes linked to external outline
// by overlapping segments.
// Insert the initial polygon:
aCornerBuffer.NewOutline();
for( unsigned ii = 0; ii < poly.size(); ii++ )
aCornerBuffer.Append( poly[ii].x, poly[ii].y );
if( linewidth ) // Add thick outlines
{
CPolyPt corner1( poly[poly.size()-1] );
for( unsigned ii = 0; ii < poly.size(); ii++ )
{
CPolyPt corner2( poly[ii] );
if( corner2 != corner1 )
{
TransformRoundedEndsSegmentToPolygon( aCornerBuffer,
corner1, corner2, aCircleToSegmentsCount, linewidth );
}
corner1 = corner2;
}
}
}
break;
case S_CURVE: // Bezier curve (TODO: not yet in use)
break;
default:
break;
}
}