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kicad/pcbnew/drc.cpp

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/*
* This program source code file is part of KICAD, a free EDA CAD application.
*
* Copyright (C) 2004-2007 Jean-Pierre Charras, jean-pierre.charras@inpg.fr
* Copyright (C) 2007 Dick Hollenbeck, dick@softplc.com
* Copyright (C) 2007 Kicad Developers, see change_log.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
*/
/****************************/
/* DRC control */
/****************************/
#include "fctsys.h"
#include "gr_basic.h"
#include "common.h"
#include "pcbnew.h"
#include "autorout.h"
#include "trigo.h"
#include "protos.h"
#include "drc_stuff.h"
#include "dialog_drc.cpp"
/******************************************************/
void WinEDA_PcbFrame::Install_Test_DRC_Frame( wxDC* DC )
/******************************************************/
{
m_drc->ShowDialog();
}
void DRC::ShowDialog()
{
if( !m_ui )
{
m_ui = new DrcDialog( this, m_mainWindow );
updatePointers();
// copy data retained in this DRC object into the m_ui DrcPanel:
PutValueInLocalUnits( *m_ui->m_SetClearance, g_DesignSettings.m_TrackClearence,
m_mainWindow->m_InternalUnits );;
m_ui->m_Pad2PadTestCtrl->SetValue( m_doPad2PadTest );
m_ui->m_ZonesTestCtrl->SetValue( m_doZonesTest );
m_ui->m_UnconnectedTestCtrl->SetValue( m_doUnconnectedTest );
m_ui->m_CreateRptCtrl->SetValue( m_doCreateRptFile );
m_ui->m_RptFilenameCtrl->SetValue( m_rptFilename );
}
else
updatePointers();
m_ui->Show(true);
}
void DRC::DestroyDialog( int aReason )
{
if( m_ui )
{
if( aReason == wxID_OK )
{
// if user clicked OK, save his choices in this DRC object.
m_doCreateRptFile = m_ui->m_CreateRptCtrl->GetValue();
m_doPad2PadTest = m_ui->m_Pad2PadTestCtrl->GetValue();
m_doZonesTest = m_ui->m_ZonesTestCtrl->GetValue();
m_doUnconnectedTest = m_ui->m_UnconnectedTestCtrl->GetValue();
m_rptFilename = m_ui->m_RptFilenameCtrl->GetValue();
}
m_ui->Destroy();
m_ui = 0;
}
}
DRC::DRC( WinEDA_PcbFrame* aPcbWindow )
{
m_mainWindow = aPcbWindow;
m_drawPanel = aPcbWindow->DrawPanel;
m_pcb = aPcbWindow->m_Pcb;
m_ui = 0;
// establish initial values for everything:
m_doPad2PadTest = true;
m_doUnconnectedTest = true;
m_doZonesTest = false;
m_doCreateRptFile = false;
// m_rptFilename set to empty by its constructor
m_currentMarker = 0;
m_spotcx = 0;
m_spotcy = 0;
m_finx = 0;
m_finy = 0;
m_segmAngle = 0;
m_segmLength = 0;
m_xcliplo = 0;
m_ycliplo = 0;
m_xcliphi = 0;
m_ycliphi = 0;
m_drawPanel = 0;
}
DRC::~DRC()
{
// maybe someday look at pointainer.h <- google for "pointainer.h"
for( unsigned i=0; i<m_unconnected.size(); ++i )
delete m_unconnected[i];
}
/***********************************************************************/
int DRC::Drc( TRACK* aRefSegm, TRACK* aList )
/***********************************************************************/
{
updatePointers();
if( !doTrackDrc( aRefSegm, aList ) )
{
wxASSERT( m_currentMarker );
m_currentMarker->Display_Infos( m_mainWindow );
return BAD_DRC;
}
return OK_DRC;
}
void DRC::RunTests()
{
// someone should have cleared the two lists before calling this.
// test pad to pad clearances, nothing to do with tracks, vias or zones.
if( m_doPad2PadTest )
testPad2Pad();
// test track and via clearances to other tracks, pads, and vias
testTracks();
// test zone clearances to other zones, pads, tracks, and vias
if( m_doZonesTest )
testZones();
// find and gather unconnected pads.
if( m_doUnconnectedTest )
testUnconnected();
// update the m_ui listboxes
updatePointers();
}
/***************************************************************/
void DRC::ListUnconnectedPads()
/***************************************************************/
{
testUnconnected();
// update the m_ui listboxes
updatePointers();
}
void DRC::updatePointers()
{
// update my pointers, m_mainWindow is the only unchangable one
m_drawPanel = m_mainWindow->DrawPanel;
m_pcb = m_mainWindow->m_Pcb;
if ( m_ui ) // Use diag list boxes only in DRC dialog
{
m_ui->m_ClearanceListBox->SetList( new DRC_LIST_MARKERS( m_pcb ) );
m_ui->m_UnconnectedListBox->SetList( new DRC_LIST_UNCONNECTED( &m_unconnected ) );
}
}
void DRC::testTracks()
{
for( TRACK* segm = m_pcb->m_Track; segm && segm->Next(); segm=segm->Next() )
{
if( !doTrackDrc( segm, segm->Next() ) )
{
wxASSERT( m_currentMarker );
m_pcb->Add( m_currentMarker );
m_currentMarker = 0;
}
}
}
void DRC::testPad2Pad()
{
LISTE_PAD* pad_list_start = CreateSortedPadListByXCoord( m_pcb );
LISTE_PAD* pad_list_limit = &pad_list_start[m_pcb->m_NbPads];
LISTE_PAD* ppad;
// find the max size of the pads (used to stop the test)
int max_size = 0;
for( ppad = pad_list_start; ppad<pad_list_limit; ppad++ )
{
D_PAD* pad = *ppad;
if( pad->m_Rayon > max_size )
max_size = pad->m_Rayon;
}
// Test the pads
for( ppad = pad_list_start; ppad<pad_list_limit; ppad++ )
{
D_PAD* pad = *ppad;
if( !doPadToPadsDrc( pad, ppad, pad_list_limit, max_size ) )
{
wxASSERT( m_currentMarker );
m_pcb->Add( m_currentMarker );
m_currentMarker = 0;
}
}
free( pad_list_start );
}
void DRC::testUnconnected()
{
if( (m_pcb->m_Status_Pcb & LISTE_CHEVELU_OK) == 0 )
{
wxClientDC dc( m_mainWindow->DrawPanel );
m_mainWindow->Compile_Ratsnest( &dc, TRUE );
}
if( m_pcb->m_Ratsnest == NULL )
return;
CHEVELU* rat = m_pcb->m_Ratsnest;
for( int i=0; i<m_pcb->GetNumRatsnests(); ++i, ++rat )
{
if( (rat->status & CH_ACTIF) == 0 )
continue;
D_PAD* padStart = rat->pad_start;
D_PAD* padEnd = rat->pad_end;
DRC_ITEM* uncItem = new DRC_ITEM( DRCE_UNCONNECTED_PADS, padStart->GetPosition(),
padStart->MenuText(m_pcb), padEnd->MenuText(m_pcb),
padStart->GetPosition(), padEnd->GetPosition() );
m_unconnected.push_back( uncItem );
}
}
void DRC::testZones()
{
TRACK* zoneSeg;
/* this was for display purposes, don't know that we need it anymore
m_pcb->m_NbSegmZone = 0;
for( zoneSeg = m_pcb->m_Zone; zoneSeg; zoneSeg = zoneSeg->Next() )
++m_pcb->m_NbSegmZone;
*/
for( zoneSeg = m_pcb->m_Zone; zoneSeg && zoneSeg->Next(); zoneSeg=zoneSeg->Next() )
{
// Test zoneSeg with other zone segments and with all pads
if( !doTrackDrc( zoneSeg, zoneSeg->Next() ) )
{
wxASSERT( m_currentMarker );
m_pcb->Add( m_currentMarker );
m_currentMarker = 0;
}
// Test zoneSeg with all track segments
int tmp = m_pcb->m_NbPads;
m_pcb->m_NbPads = 0; // Pads already tested: disable pad test
bool rc = doTrackDrc( zoneSeg, m_pcb->m_Track );
m_pcb->m_NbPads = tmp;
if( !rc )
{
wxASSERT( m_currentMarker );
m_pcb->Add( m_currentMarker );
m_currentMarker = 0;
}
}
}
MARKER* DRC::fillMarker( TRACK* aTrack, BOARD_ITEM* aItem, int aErrorCode, MARKER* fillMe )
{
wxString textA = aTrack->MenuText( m_pcb );
wxString textB;
wxPoint position;
wxPoint posB;
if( aItem ) // aItem might be NULL
{
textB = aItem->MenuText( m_pcb );
posB = aItem->GetPosition();
if( aItem->Type() == TYPEPAD )
position = aItem->GetPosition();
else if( aItem->Type() == TYPEVIA )
position = aItem->GetPosition();
else if( aItem->Type() == TYPETRACK )
{
TRACK* track = (TRACK*) aItem;
wxPoint endPos = track->m_End;
// either of aItem's start or end will be used for the marker position
// first assume start, then switch at end if needed. decision made on
// distance from end of aTrack.
position = track->m_Start;
double dToEnd = hypot( endPos.x - aTrack->m_End.x,
endPos.y - aTrack->m_End.y );
double dToStart = hypot( position.x - aTrack->m_End.x,
position.y - aTrack->m_End.y );
if( dToEnd < dToStart )
position = endPos;
}
}
else
position = aTrack->GetPosition();
if( fillMe )
fillMe->SetData( aErrorCode, position,
textA, aTrack->GetPosition(),
textB, posB );
else
fillMe = new MARKER( aErrorCode, position,
textA, aTrack->GetPosition(),
textB, posB );
return fillMe;
}
MARKER* DRC::fillMarker( D_PAD* aPad, D_PAD* bPad, int aErrorCode, MARKER* fillMe )
{
wxString textA = aPad->MenuText( m_pcb );
wxString textB = bPad->MenuText( m_pcb );
wxPoint posA = aPad->GetPosition();
wxPoint posB = bPad->GetPosition();
if( fillMe )
fillMe->SetData( aErrorCode, posA, textA, posA, textB, posB );
else
fillMe = new MARKER( aErrorCode, posA, textA, posA, textB, posB );
return fillMe;
}
/***********************************************************************/
bool DRC::doTrackDrc( TRACK* aRefSeg, TRACK* aStart )
/***********************************************************************/
{
TRACK* track;
int dx, dy; // utilise pour calcul des dim x et dim y des segments
int w_dist;
int layerMask;
int net_code_ref;
int org_X, org_Y; // Origine sur le PCB des axes du repere centre sur
// l'origine du segment de reference
wxPoint shape_pos;
org_X = aRefSeg->m_Start.x;
org_Y = aRefSeg->m_Start.y;
m_finx = dx = aRefSeg->m_End.x - org_X;
m_finy = dy = aRefSeg->m_End.y - org_Y;
layerMask = aRefSeg->ReturnMaskLayer();
net_code_ref = aRefSeg->GetNet();
m_segmAngle = 0;
// @todo: is this necessary?
/**************************************************************/
/* Phase 0 : test if via's hole is bigger than its diameter : */
/**************************************************************/
if( aRefSeg->Type() == TYPEVIA )
{
// This test seems necessary since the dialog box that displays the
// desired via hole size and width does not enforce a hole size smaller
// than the via's diameter.
if( aRefSeg->m_Drill > aRefSeg->m_Width )
{
m_currentMarker = fillMarker( aRefSeg, NULL,
DRCE_VIA_HOLE_BIGGER, m_currentMarker );
return false;
}
}
// for a non horizontal or vertical segment Compute the segment angle
// in tenths of degrees and its length
if( dx || dy )
{
// Compute the segment angle in 0,1 degrees
m_segmAngle = ArcTangente( dy, dx );
// Compute the segment length: we build an equivalent rotated segment,
// this segment is horizontal, therefore dx = length
RotatePoint( &dx, &dy, m_segmAngle ); // dx = length, dy = 0
}
m_segmLength = dx;
/******************************************/
/* Phase 1 : test DRC track to pads : */
/******************************************/
D_PAD pseudo_pad( (MODULE*) NULL ); // construct this once outside following loop
// Compute the min distance to pads
w_dist = aRefSeg->m_Width >> 1;
for( int ii=0; ii<m_pcb->m_NbPads; ++ii )
{
D_PAD* pad = m_pcb->m_Pads[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->m_Masque_Layer & layerMask ) == 0 )
{
/* 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->m_Drill.x == 0 )
continue;
pseudo_pad.m_Size = pad->m_Drill;
pseudo_pad.SetPosition( pad->GetPosition() );
pseudo_pad.m_PadShape = pad->m_DrillShape;
pseudo_pad.m_Orient = pad->m_Orient;
pseudo_pad.ComputeRayon(); // compute the radius
m_spotcx = pseudo_pad.GetPosition().x - org_X;
m_spotcy = pseudo_pad.GetPosition().y - org_Y;
if( !checkClearanceSegmToPad( &pseudo_pad, w_dist,
g_DesignSettings.m_TrackClearence ) )
{
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->GetNet() && // the pad must be connected
net_code_ref == pad->GetNet() ) // the pad net is the same as current net -> Ok
continue;
// DRC for the pad
shape_pos = pad->ReturnShapePos();
m_spotcx = shape_pos.x - org_X;
m_spotcy = shape_pos.y - org_Y;
if( !checkClearanceSegmToPad( pad, w_dist, g_DesignSettings.m_TrackClearence ) )
{
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
for( track=aStart; track; track=track->Next() )
{
// coord des extremites du segment teste dans le repere modifie
int x0;
int y0;
int xf;
int yf;
// No problem if segments have the same net code:
if( net_code_ref == track->GetNet() )
continue;
// No problem if segment are on different layers :
if( ( layerMask & track->ReturnMaskLayer() ) == 0 )
continue;
// the minimum distance = clearance plus half the reference track
// width plus half the other track's width
w_dist = aRefSeg->m_Width >> 1;
w_dist += track->m_Width >> 1;
w_dist += g_DesignSettings.m_TrackClearence;
// If the reference segment is a via, we test it here
if( aRefSeg->Type() == TYPEVIA )
{
int orgx, orgy; // origine du repere d'axe X = segment a comparer
int angle = 0; // angle du segment a tester;
orgx = track->m_Start.x;
orgy = track->m_Start.y;
dx = track->m_End.x - orgx;
dy = track->m_End.y - orgy;
x0 = aRefSeg->m_Start.x - orgx;
y0 = aRefSeg->m_Start.y - orgy;
if( track->Type() == TYPEVIA )
{
// Test distance between two vias
if( (int) hypot( x0, y0 ) < w_dist )
{
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_VIA_NEAR_VIA, m_currentMarker );
return false;
}
}
else // test via to segment
{
// Compute l'angle
angle = ArcTangente( dy, dx );
// Compute new coordinates ( the segment become horizontal)
RotatePoint( &dx, &dy, angle );
RotatePoint( &x0, &y0, angle );
if( !checkMarginToCircle( x0, y0, w_dist, dx ) )
{
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_VIA_NEAR_TRACK, m_currentMarker );
return false;
}
}
continue;
}
/* We compute x0,y0, xf,yf = 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
*/
x0 = track->m_Start.x - org_X;
y0 = track->m_Start.y - org_Y;
xf = track->m_End.x - org_X;
yf = track->m_End.y - org_Y;
RotatePoint( &x0, &y0, m_segmAngle );
RotatePoint( &xf, &yf, m_segmAngle );
if( track->Type() == TYPEVIA )
{
if( checkMarginToCircle( x0, y0, 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( y0 == yf ) // parallel segments
{
if( abs( y0 ) >= w_dist )
continue;
if( x0 > xf )
EXCHG( x0, xf ); /* pour que x0 <= xf */
if( x0 > (-w_dist) && x0 < (m_segmLength + w_dist) ) /* possible error drc */
{
/* Fine test : we consider the rounded shape of the ends */
if( x0 >= 0 && x0 <= m_segmLength )
{
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_TRACK_ENDS1, m_currentMarker );
return false;
}
if( !checkMarginToCircle( x0, y0, w_dist, m_segmLength ) )
{
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_TRACK_ENDS2, m_currentMarker );
return false;
}
}
if( xf > (-w_dist) && xf < (m_segmLength + w_dist) )
{
/* Fine test : we consider the rounded shape of the ends */
if( xf >= 0 && xf <= m_segmLength )
{
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_TRACK_ENDS3, m_currentMarker );
return false;
}
if( !checkMarginToCircle( xf, yf, w_dist, m_segmLength ) )
{
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_TRACK_ENDS4, m_currentMarker );
return false;
}
}
if( x0 <=0 && xf >= 0 )
{
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_TRACK_UNKNOWN1, m_currentMarker );
return false;
}
}
else if( x0 == xf ) // perpendicular segments
{
if( ( x0 <= (-w_dist) ) || ( x0 >= (m_segmLength + w_dist) ) )
continue;
// Test if segments are crossing
if( y0 > yf )
EXCHG( y0, yf );
if( (y0 < 0) && (yf > 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( x0, y0, w_dist, m_segmLength ) )
{
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_ENDS_PROBLEM1, m_currentMarker );
return false;
}
if( !checkMarginToCircle( xf, yf, 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( x0, y0, xf, yf ) )
{
/* 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( x0, y0, xf, yf ) )
{
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
int angle, rx0, ry0, rxf, ryf;
x0 = track->m_Start.x;
y0 = track->m_Start.y;
xf = track->m_End.x;
yf = track->m_End.y;
dx = xf - x0;
dy = yf - y0;
/* Compute the segment orientation (angle) en 0,1 degre */
angle = ArcTangente( dy, dx );
/* Compute the segment lenght: dx = longueur */
RotatePoint( &dx, &dy, angle );
/* Comute the reference segment coordinates relatives to a
* X axis = current tested segment
*/
rx0 = aRefSeg->m_Start.x - x0;
ry0 = aRefSeg->m_Start.y - y0;
rxf = aRefSeg->m_End.x - x0;
ryf = aRefSeg->m_End.y - y0;
RotatePoint( &rx0, &ry0, angle );
RotatePoint( &rxf, &ryf, angle );
if( !checkMarginToCircle( rx0, ry0, w_dist, dx ) )
{
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_ENDS_PROBLEM4, m_currentMarker );
return false;
}
if( !checkMarginToCircle( rxf, ryf, w_dist, dx ) )
{
m_currentMarker = fillMarker( aRefSeg, track,
DRCE_ENDS_PROBLEM5, m_currentMarker );
return false;
}
}
}
}
}
return true;
}
/*****************************************************************************/
bool DRC::doPadToPadsDrc( D_PAD* aRefPad, LISTE_PAD* aStart, LISTE_PAD* aEnd,
int max_size )
/*****************************************************************************/
{
int layerMask = aRefPad->m_Masque_Layer & ALL_CU_LAYERS;
int x_limite = max_size + g_DesignSettings.m_TrackClearence +
aRefPad->m_Rayon + aRefPad->GetPosition().x;
for( LISTE_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->m_Pos.x > x_limite
* because the list is sorted by X values */
if( pad->m_Pos.x > x_limite )
break;
/* No probleme if pads are on different copper layers */
if( (pad->m_Masque_Layer & layerMask ) == 0 )
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->GetNet() && (aRefPad->GetNet() == pad->GetNet()) )
continue;
/* No problem if pads are from the same footprint
* and have the same pad number ( equivalent pads ) */
if( (pad->m_Parent == aRefPad->m_Parent) && (pad->m_NumPadName == aRefPad->m_NumPadName) )
continue;
if( !checkClearancePadToPad( aRefPad, pad, g_DesignSettings.m_TrackClearence ) )
{
// here we have a drc error!
m_currentMarker = fillMarker( aRefPad, pad,
DRCE_PAD_NEAR_PAD1, m_currentMarker );
return false;
}
}
return true;
}
/**************************************************************************************/
bool DRC::checkClearancePadToPad( D_PAD* aRefPad, D_PAD* aPad, const int dist_min )
/***************************************************************************************/
{
wxPoint rel_pos;
int dist;;
wxPoint shape_pos;
int pad_angle;
rel_pos = aPad->ReturnShapePos();
shape_pos = aRefPad->ReturnShapePos();
// rel_pos is pad position relative to the aRefPad position
rel_pos.x -= shape_pos.x;
rel_pos.y -= shape_pos.y;
dist = (int) hypot( rel_pos.x, rel_pos.y );
bool diag = true;
/* tst rapide: si les cercles exinscrits sont distants de dist_min au moins,
* il n'y a pas de risque: */
if( (dist - aRefPad->m_Rayon - aPad->m_Rayon) >= dist_min )
goto exit;
/* Ici les pads sont proches et les cercles exinxcrits sont trop proches
* Selon les formes relatives il peut y avoir ou non erreur */
bool swap_pads;
swap_pads = false;
if( (aRefPad->m_PadShape != PAD_CIRCLE) && (aPad->m_PadShape == PAD_CIRCLE) )
swap_pads = true;
else if( (aRefPad->m_PadShape != PAD_OVAL) && (aPad->m_PadShape == PAD_OVAL) )
swap_pads = true;
if( swap_pads )
{
EXCHG( aRefPad, aPad );
rel_pos.x = -rel_pos.x;
rel_pos.y = -rel_pos.y;
}
switch( aRefPad->m_PadShape )
{
case PAD_CIRCLE: // aRefPad is like a track segment with a null lenght
m_segmLength = 0;
m_segmAngle = 0;
m_finx = m_finy = 0;
m_spotcx = rel_pos.x;
m_spotcy = rel_pos.y;
diag = checkClearanceSegmToPad( aPad, aRefPad->m_Rayon, dist_min );
break;
case PAD_RECT:
RotatePoint( &rel_pos.x, &rel_pos.y, aRefPad->m_Orient );
pad_angle = aRefPad->m_Orient + aPad->m_Orient; // pad_angle = pad orient relative to the aRefPad orient
NORMALIZE_ANGLE_POS( pad_angle );
if( aPad->m_PadShape == PAD_RECT )
{
wxSize size = aPad->m_Size;
if( (pad_angle == 0) || (pad_angle == 900) || (pad_angle == 1800) ||
(pad_angle == 2700) )
{
if( (pad_angle == 900) || (pad_angle == 2700) )
{
EXCHG( size.x, size.y );
}
// Test DRC:
diag = false;
rel_pos.x = ABS( rel_pos.x );
rel_pos.y = ABS( rel_pos.y );
if( ( rel_pos.x - ( (size.x + aRefPad->m_Size.x) / 2 ) ) >= dist_min )
diag = true;
if( ( rel_pos.y - ( (size.y + aRefPad->m_Size.y) / 2 ) ) >= dist_min )
diag = true;
}
else // Any other orient
{
/* TODO : any orient ... */
}
}
break;
case PAD_OVAL: /* an oval pad is like a track segment */
{
/* Create and test a track segment with same dimensions */
int segm_width;
m_segmAngle = aRefPad->m_Orient; // Segment orient.
if( aRefPad->m_Size.y < aRefPad->m_Size.x ) /* We suppose the pad is an horizontal oval */
{
segm_width = aRefPad->m_Size.y;
m_segmLength = aRefPad->m_Size.x - aRefPad->m_Size.y;
}
else // it was a vertical oval, change to a rotated horizontal one
{
segm_width = aRefPad->m_Size.x;
m_segmLength = aRefPad->m_Size.y - aRefPad->m_Size.x;
m_segmAngle += 900;
}
/* the start point must be 0,0 and currently rel_pos is relative the center of pad coordinate */
int sx = -m_segmLength / 2, sy = 0; // Start point coordinate of the horizontal equivalent segment
RotatePoint( &sx, &sy, m_segmAngle ); // True start point coordinate of the equivalent segment
m_spotcx = rel_pos.x + sx;
m_spotcy = rel_pos.y + sy; // pad position / segment origin
m_finx = -sx;
m_finy = -sy; // end of segment coordinate
diag = checkClearanceSegmToPad( aPad, segm_width / 2, dist_min );
break;
}
default:
/* TODO...*/
break;
}
exit: // the only way out (hopefully) for simpler debugging
return diag;
}
bool DRC::checkClearanceSegmToPad( const D_PAD* pad_to_test, int w_segm, int dist_min )
{
int p_dimx;
int p_dimy; // half the dimension of the pad
int orient;
int x0, y0, xf, yf;
int seuil;
int deltay;
seuil = w_segm + dist_min;
p_dimx = pad_to_test->m_Size.x >> 1;
p_dimy = pad_to_test->m_Size.y >> 1;
if( pad_to_test->m_PadShape == PAD_CIRCLE )
{
/* calcul des coord centre du pad dans le repere axe X confondu
* avec le segment en tst */
RotatePoint( &m_spotcx, &m_spotcy, m_segmAngle );
return checkMarginToCircle( m_spotcx, m_spotcy, seuil + p_dimx, m_segmLength );
}
else
{
/* calcul de la "surface de securite" du pad de reference */
m_xcliplo = m_spotcx - seuil - p_dimx;
m_ycliplo = m_spotcy - seuil - p_dimy;
m_xcliphi = m_spotcx + seuil + p_dimx;
m_ycliphi = m_spotcy + seuil + p_dimy;
x0 = y0 = 0;
xf = m_finx;
yf = m_finy;
orient = pad_to_test->m_Orient;
RotatePoint( &x0, &y0, m_spotcx, m_spotcy, -orient );
RotatePoint( &xf, &yf, m_spotcx, m_spotcy, -orient );
if( checkLine( x0, y0, xf, yf ) )
return true;
/* Erreur DRC : analyse fine de la forme de la pastille */
switch( pad_to_test->m_PadShape )
{
default:
return false;
case PAD_OVAL:
/* test de la pastille ovale ramenee au type ovale vertical */
if( p_dimx > p_dimy )
{
EXCHG( p_dimx, p_dimy );
orient += 900;
if( orient >= 3600 )
orient -= 3600;
}
deltay = p_dimy - p_dimx;
/* ici: p_dimx = rayon,
* delta = dist centre cercles a centre pad */
/* Test du rectangle separant les 2 demi cercles */
m_xcliplo = m_spotcx - seuil - p_dimx;
m_ycliplo = m_spotcy - w_segm - deltay;
m_xcliphi = m_spotcx + seuil + p_dimx;
m_ycliphi = m_spotcy + w_segm + deltay;
if( !checkLine( x0, y0, xf, yf ) )
return false;
/* test des 2 cercles */
x0 = m_spotcx; /* x0,y0 = centre du cercle superieur du pad ovale */
y0 = m_spotcy + deltay;
RotatePoint( &x0, &y0, m_spotcx, m_spotcy, orient );
RotatePoint( &x0, &y0, m_segmAngle );
if( !checkMarginToCircle( x0, y0, p_dimx + seuil, m_segmLength ) )
return false;
x0 = m_spotcx; /* x0,y0 = centre du cercle inferieur du pad ovale */
y0 = m_spotcy - deltay;
RotatePoint( &x0, &y0, m_spotcx, m_spotcy, orient );
RotatePoint( &x0, &y0, m_segmAngle );
if( !checkMarginToCircle( x0, y0, p_dimx + seuil, m_segmLength ) )
return false;
break;
case PAD_RECT: /* 2 rectangle + 4 1/4 cercles a tester */
/* Test du rectangle dimx + seuil, dimy */
m_xcliplo = m_spotcx - p_dimx - seuil;
m_ycliplo = m_spotcy - p_dimy;
m_xcliphi = m_spotcx + p_dimx + seuil;
m_ycliphi = m_spotcy + p_dimy;
if( !checkLine( x0, y0, xf, yf ) )
{
return false;
}
/* Test du rectangle dimx , dimy + seuil */
m_xcliplo = m_spotcx - p_dimx;
m_ycliplo = m_spotcy - p_dimy - seuil;
m_xcliphi = m_spotcx + p_dimx;
m_ycliphi = m_spotcy + p_dimy + seuil;
if( !checkLine( x0, y0, xf, yf ) )
{
return false;
}
/* test des 4 cercles ( surface d'solation autour des sommets */
/* test du coin sup. gauche du pad */
x0 = m_spotcx - p_dimx;
y0 = m_spotcy - p_dimy;
RotatePoint( &x0, &y0, m_spotcx, m_spotcy, orient );
RotatePoint( &x0, &y0, m_segmAngle );
if( !checkMarginToCircle( x0, y0, seuil, m_segmLength ) )
{
return false;
}
/* test du coin sup. droit du pad */
x0 = m_spotcx + p_dimx;
y0 = m_spotcy - p_dimy;
RotatePoint( &x0, &y0, m_spotcx, m_spotcy, orient );
RotatePoint( &x0, &y0, m_segmAngle );
if( !checkMarginToCircle( x0, y0, seuil, m_segmLength ) )
{
return false;
}
/* test du coin inf. gauche du pad */
x0 = m_spotcx - p_dimx;
y0 = m_spotcy + p_dimy;
RotatePoint( &x0, &y0, m_spotcx, m_spotcy, orient );
RotatePoint( &x0, &y0, m_segmAngle );
if( !checkMarginToCircle( x0, y0, seuil, m_segmLength ) )
{
return false;
}
/* test du coin inf. droit du pad */
x0 = m_spotcx + p_dimx;
y0 = m_spotcy + p_dimy;
RotatePoint( &x0, &y0, m_spotcx, m_spotcy, orient );
RotatePoint( &x0, &y0, m_segmAngle );
if( !checkMarginToCircle( x0, y0, seuil, m_segmLength ) )
{
return false;
}
break;
}
}
return true;
}
/**********************************************************************/
bool DRC::checkMarginToCircle( int cx, int cy, int radius, int longueur )
/**********************************************************************/
{
if( abs( cy ) > radius )
return true;
if( (cx >= -radius ) && ( cx <= (longueur + radius) ) )
{
if( (cx >= 0) && (cx <= longueur) )
return false;
if( cx > longueur )
cx -= longueur;
if( hypot( cx, cy ) < radius )
return false;
}
return true;
}
/**********************************************/
/* int Tst_Ligne(int x1,int y1,int x2,int y2) */
/**********************************************/
static inline int USCALE( unsigned arg, unsigned num, unsigned den )
{
int ii;
ii = (int) ( ( (double) arg * num ) / den );
return ii;
}
#define WHEN_OUTSIDE return true
#define WHEN_INSIDE
bool DRC::checkLine( int x1, int y1, int x2, int y2 )
{
int temp;
if( x1 > x2 )
{
EXCHG( x1, x2 );
EXCHG( y1, y2 );
}
if( (x2 < m_xcliplo) || (x1 > m_xcliphi) )
{
WHEN_OUTSIDE;
}
if( y1 < y2 )
{
if( (y2 < m_ycliplo) || (y1 > m_ycliphi) )
{
WHEN_OUTSIDE;
}
if( y1 < m_ycliplo )
{
temp = USCALE( (x2 - x1), (m_ycliplo - y1), (y2 - y1) );
if( (x1 += temp) > m_xcliphi )
{
WHEN_OUTSIDE;
}
y1 = m_ycliplo;
WHEN_INSIDE;
}
if( y2 > m_ycliphi )
{
temp = USCALE( (x2 - x1), (y2 - m_ycliphi), (y2 - y1) );
if( (x2 -= temp) < m_xcliplo )
{
WHEN_OUTSIDE;
}
y2 = m_ycliphi;
WHEN_INSIDE;
}
if( x1 < m_xcliplo )
{
temp = USCALE( (y2 - y1), (m_xcliplo - x1), (x2 - x1) );
y1 += temp;
x1 = m_xcliplo;
WHEN_INSIDE;
}
if( x2 > m_xcliphi )
{
temp = USCALE( (y2 - y1), (x2 - m_xcliphi), (x2 - x1) );
y2 -= temp;
x2 = m_xcliphi;
WHEN_INSIDE;
}
}
else
{
if( (y1 < m_ycliplo) || (y2 > m_ycliphi) )
{
WHEN_OUTSIDE;
}
if( y1 > m_ycliphi )
{
temp = USCALE( (x2 - x1), (y1 - m_ycliphi), (y1 - y2) );
if( (x1 += temp) > m_xcliphi )
{
WHEN_OUTSIDE;
}
y1 = m_ycliphi;
WHEN_INSIDE;
}
if( y2 < m_ycliplo )
{
temp = USCALE( (x2 - x1), (m_ycliplo - y2), (y1 - y2) );
if( (x2 -= temp) < m_xcliplo )
{
WHEN_OUTSIDE;
}
y2 = m_ycliplo;
WHEN_INSIDE;
}
if( x1 < m_xcliplo )
{
temp = USCALE( (y1 - y2), (m_xcliplo - x1), (x2 - x1) );
y1 -= temp;
x1 = m_xcliplo;
WHEN_INSIDE;
}
if( x2 > m_xcliphi )
{
temp = USCALE( (y1 - y2), (x2 - m_xcliphi), (x2 - x1) );
y2 += temp;
x2 = m_xcliphi;
WHEN_INSIDE;
}
}
if( ( (x2 + x1)/2 <= m_xcliphi ) && ( (x2 + x1)/2 >= m_xcliplo ) \
&& ( (y2 + y1)/2 <= m_ycliphi ) && ( (y2 + y1)/2 >= m_ycliplo ) )
{
return false;
}
else
return true;
}
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