kicad-source/pcbnew/zones_convert_to_polygons_aux_functions.cpp
jean-pierre charras 619125f9ab Changes for CvPcb to eeschema stuff file: the stuff file generation from CvPcb is removed. Eeschema now imports footprints names from the .cmp usual file created by CvPcb or by Pcbnew (Why to use 2 file formats for the same thing?) .
Pcbnew: in netlist dialog: The user now can choose between the netlist and the .cmp file to import footprints names.
Therfore no need to delete the .cmp file when exists to use only the netlist.
This is useful for users who use CvPcb only once to fill footprints fields in schematic, and after edit/modify the footprints fields in schematic outside CvPcb.
2013-02-02 18:39:59 +01:00

200 lines
8.6 KiB
C++

/**
* @file zones_convert_to_polygons_aux_functions.cpp
*/
/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2012 Jean-Pierre Charras, jean-pierre.charras@ujf-grenoble.fr
* Copyright (C) 1992-2012 KiCad Developers, see AUTHORS.txt for contributors.
*
* 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 <fctsys.h>
#include <polygons_defs.h>
#include <PolyLine.h>
#include <wxPcbStruct.h>
#include <trigo.h>
#include <class_board.h>
#include <class_module.h>
#include <class_zone.h>
#include <pcbnew.h>
#include <zones.h>
/**
* Function BuildUnconnectedThermalStubsPolygonList
* Creates a set of polygons corresponding to stubs created by thermal shapes on pads
* which are not connected to a zone (dangling bridges)
* @param aCornerBuffer = a std::vector<CPolyPt> where to store polygons
* @param aPcb = the board.
* @param aZone = a pointer to the ZONE_CONTAINER to examine.
* @param aArcCorrection = a pointer to the ZONE_CONTAINER to examine.
* @param aRoundPadThermalRotation = the rotation in 1.0 degree for thermal stubs in round pads
*/
void BuildUnconnectedThermalStubsPolygonList( std::vector<CPolyPt>& aCornerBuffer,
BOARD* aPcb,
ZONE_CONTAINER* aZone,
double aArcCorrection,
int aRoundPadThermalRotation )
{
std::vector<wxPoint> corners_buffer; // a local polygon buffer to store one stub
corners_buffer.reserve( 4 );
wxPoint ptTest[4];
int zone_clearance = aZone->m_ZoneClearance;
EDA_RECT item_boundingbox;
EDA_RECT zone_boundingbox = aZone->GetBoundingBox();
int biggest_clearance = aPcb->GetBiggestClearanceValue();
biggest_clearance = std::max( biggest_clearance, zone_clearance );
zone_boundingbox.Inflate( biggest_clearance );
// half size of the pen used to draw/plot zones outlines
int pen_radius = aZone->m_ZoneMinThickness / 2;
for( MODULE* module = aPcb->m_Modules; module; module = module->Next() )
{
for( D_PAD* pad = module->m_Pads; pad != NULL; pad = pad->Next() )
{
// Calculate thermal bridge half width
int thermalBridgeWidth = aZone->GetThermalReliefCopperBridge( pad ) / 2;
int thermalReliefGap = aZone->GetThermalReliefGap( pad );
// Rejects non-standard pads with tht-only thermal reliefs
if( aZone->GetPadConnection( pad ) == THT_THERMAL
&& pad->GetAttribute() != PAD_STANDARD )
continue;
if( aZone->GetPadConnection( pad ) != THERMAL_PAD
&& aZone->GetPadConnection( pad ) != THT_THERMAL )
continue;
// check
if( !pad->IsOnLayer( aZone->GetLayer() ) )
continue;
if( pad->GetNet() != aZone->GetNet() )
continue;
item_boundingbox = pad->GetBoundingBox();
item_boundingbox.Inflate( thermalReliefGap );
if( !( item_boundingbox.Intersects( zone_boundingbox ) ) )
continue;
// Thermal bridges are like a segment from a starting point inside the pad
// to an ending point outside the pad
wxPoint startpoint, endpoint;
endpoint.x = ( pad->GetSize().x / 2 ) + thermalReliefGap;
endpoint.y = ( pad->GetSize().y / 2 ) + thermalReliefGap;
int copperThickness = aZone->GetThermalReliefCopperBridge( pad ) - aZone->m_ZoneMinThickness;
if( copperThickness < 0 )
copperThickness = 0;
startpoint.x = std::min( pad->GetSize().x, copperThickness );
startpoint.y = std::min( pad->GetSize().y, copperThickness );
startpoint.x /= 2;
startpoint.y /= 2;
// This is a CIRCLE pad tweak
// for circle pads, the thermal stubs orientation is 45 deg
int fAngle = pad->GetOrientation();
if( pad->GetShape() == PAD_CIRCLE )
{
endpoint.x = (int) ( endpoint.x * aArcCorrection );
endpoint.y = endpoint.x;
fAngle = aRoundPadThermalRotation;
}
// contour line width has to be taken into calculation to avoid "thermal stub bleed"
endpoint.x += pen_radius;
endpoint.y += pen_radius;
// compute north, south, west and east points for zone connection.
ptTest[0] = wxPoint( 0, endpoint.y ); // lower point
ptTest[1] = wxPoint( 0, -endpoint.y ); // upper point
ptTest[2] = wxPoint( endpoint.x, 0 ); // right point
ptTest[3] = wxPoint( -endpoint.x, 0 ); // left point
// Test all sides
for( int i = 0; i < 4; i++ )
{
// rotate point
RotatePoint( &ptTest[i], fAngle );
// translate point
ptTest[i] += pad->ReturnShapePos();
if( aZone->HitTestFilledArea( ptTest[i] ) )
continue;
corners_buffer.clear();
// polygons are rectangles with width of copper bridge value
switch( i )
{
case 0: // lower stub
corners_buffer.push_back( wxPoint( -thermalBridgeWidth, endpoint.y ) );
corners_buffer.push_back( wxPoint( +thermalBridgeWidth, endpoint.y ) );
corners_buffer.push_back( wxPoint( +thermalBridgeWidth, startpoint.y ) );
corners_buffer.push_back( wxPoint( -thermalBridgeWidth, startpoint.y ) );
break;
case 1: // upper stub
corners_buffer.push_back( wxPoint( -thermalBridgeWidth, -endpoint.y ) );
corners_buffer.push_back( wxPoint( +thermalBridgeWidth, -endpoint.y ) );
corners_buffer.push_back( wxPoint( +thermalBridgeWidth, -startpoint.y ) );
corners_buffer.push_back( wxPoint( -thermalBridgeWidth, -startpoint.y ) );
break;
case 2: // right stub
corners_buffer.push_back( wxPoint( endpoint.x, -thermalBridgeWidth ) );
corners_buffer.push_back( wxPoint( endpoint.x, thermalBridgeWidth ) );
corners_buffer.push_back( wxPoint( +startpoint.x, thermalBridgeWidth ) );
corners_buffer.push_back( wxPoint( +startpoint.x, -thermalBridgeWidth ) );
break;
case 3: // left stub
corners_buffer.push_back( wxPoint( -endpoint.x, -thermalBridgeWidth ) );
corners_buffer.push_back( wxPoint( -endpoint.x, thermalBridgeWidth ) );
corners_buffer.push_back( wxPoint( -startpoint.x, thermalBridgeWidth ) );
corners_buffer.push_back( wxPoint( -startpoint.x, -thermalBridgeWidth ) );
break;
}
// add computed polygon to list
for( unsigned ic = 0; ic < corners_buffer.size(); ic++ )
{
wxPoint cpos = corners_buffer[ic];
RotatePoint( &cpos, fAngle ); // Rotate according to module orientation
cpos += pad->ReturnShapePos(); // Shift origin to position
CPolyPt corner;
corner.x = cpos.x;
corner.y = cpos.y;
corner.end_contour = ( ic < (corners_buffer.size() - 1) ) ? 0 : 1;
aCornerBuffer.push_back( corner );
}
}
}
}
}