const EDA_RECT D_PAD::GetBoundingBox() const
{
EDA_RECT area;
wxPoint quadrant1, quadrant2, quadrant3, quadrant4;
int x, y, r, dx, dy;
wxPoint center = ShapePos();
wxPoint endPoint;
EDA_RECT endRect;
switch( GetShape() )
{
case PAD_SHAPE_CIRCLE:
area.SetOrigin( center );
area.Inflate( m_Size.x / 2 );
break;
case PAD_SHAPE_OVAL:
/* To get the BoundingBox of an oval pad:
* a) If the pad is ROUND, see method for PAD_SHAPE_CIRCLE above
* OTHERWISE:
* b) Construct EDA_RECT for portion between circular ends
* c) Rotate that EDA_RECT
* d) Add the circular ends to the EDA_RECT
*/
// Test if the shape is circular
if( m_Size.x == m_Size.y )
{
area.SetOrigin( center );
area.Inflate( m_Size.x / 2 );
break;
}
if( m_Size.x > m_Size.y )
{
// Pad is horizontal
dx = ( m_Size.x - m_Size.y ) / 2;
dy = m_Size.y / 2;
// Location of end-points
x = dx;
y = 0;
r = dy;
}
else
{
// Pad is vertical
dx = m_Size.x / 2;
dy = ( m_Size.y - m_Size.x ) / 2;
x = 0;
y = dy;
r = dx;
}
// Construct the center rectangle and rotate
area.SetOrigin( center );
area.Inflate( dx, dy );
area = area.GetBoundingBoxRotated( center, m_Orient );
endPoint = wxPoint( x, y );
RotatePoint( &endPoint, m_Orient );
// Add points at each quadrant of circular regions
endRect.SetOrigin( center + endPoint );
endRect.Inflate( r );
area.Merge( endRect );
endRect.SetSize( 0, 0 );
endRect.SetOrigin( center - endPoint );
endRect.Inflate( r );
area.Merge( endRect );
break;
case PAD_SHAPE_RECT:
case PAD_SHAPE_ROUNDRECT:
// Use two opposite corners and track their rotation
// (use symmetry for other points)
quadrant1.x = m_Size.x/2;
quadrant1.y = m_Size.y/2;
quadrant2.x = -m_Size.x/2;
quadrant2.y = m_Size.y/2;
RotatePoint( &quadrant1, m_Orient );
RotatePoint( &quadrant2, m_Orient );
dx = std::max( std::abs( quadrant1.x ) , std::abs( quadrant2.x ) );
dy = std::max( std::abs( quadrant1.y ) , std::abs( quadrant2.y ) );
// Set the bbox
area.SetOrigin( ShapePos() );
area.Inflate( dx, dy );
break;
case PAD_SHAPE_TRAPEZOID:
// Use the four corners and track their rotation
// (Trapezoids will not be symmetric)
quadrant1.x = (m_Size.x + m_DeltaSize.y)/2;
quadrant1.y = (m_Size.y - m_DeltaSize.x)/2;
quadrant2.x = -(m_Size.x + m_DeltaSize.y)/2;
quadrant2.y = (m_Size.y + m_DeltaSize.x)/2;
quadrant3.x = -(m_Size.x - m_DeltaSize.y)/2;
quadrant3.y = -(m_Size.y + m_DeltaSize.x)/2;
quadrant4.x = (m_Size.x - m_DeltaSize.y)/2;
quadrant4.y = -(m_Size.y - m_DeltaSize.x)/2;
RotatePoint( &quadrant1, m_Orient );
RotatePoint( &quadrant2, m_Orient );
RotatePoint( &quadrant3, m_Orient );
RotatePoint( &quadrant4, m_Orient );
x = std::min( quadrant1.x, std::min( quadrant2.x, std::min( quadrant3.x, quadrant4.x) ) );
y = std::min( quadrant1.y, std::min( quadrant2.y, std::min( quadrant3.y, quadrant4.y) ) );
dx = std::max( quadrant1.x, std::max( quadrant2.x, std::max( quadrant3.x, quadrant4.x) ) );
dy = std::max( quadrant1.y, std::max( quadrant2.y, std::max( quadrant3.y, quadrant4.y) ) );
area.SetOrigin( ShapePos().x + x, ShapePos().y + y );
area.SetSize( dx-x, dy-y );
break;
case PAD_SHAPE_CUSTOM:
{
SHAPE_POLY_SET polySet( m_customShapeAsPolygon );
// Move shape to actual position
CustomShapeAsPolygonToBoardPosition( &polySet, GetPosition(), GetOrientation() );
quadrant1 = m_Pos;
quadrant2 = m_Pos;
for( int cnt = 0; cnt < polySet.OutlineCount(); ++cnt )
{
const SHAPE_LINE_CHAIN& poly = polySet.COutline( cnt );
for( int ii = 0; ii < poly.PointCount(); ++ii )
{
quadrant1.x = std::min( quadrant1.x, poly.CPoint( ii ).x );
quadrant1.y = std::min( quadrant1.y, poly.CPoint( ii ).y );
quadrant2.x = std::max( quadrant2.x, poly.CPoint( ii ).x );
quadrant2.y = std::max( quadrant2.y, poly.CPoint( ii ).y );
}
}
area.SetOrigin( quadrant1 );
area.SetEnd( quadrant2 );
}
break;
default:
break;
}
return area;
}
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;
}
}
