Add code and dialog to create/add/remove teardrops, step 1

This commit is contained in:
jean-pierre charras 2021-11-02 10:18:58 +01:00
parent 6165fd2be5
commit d42514ad30
27 changed files with 6276 additions and 0 deletions

View File

@ -625,6 +625,9 @@ set( BMAPS_OTHER
stroke_dashdotdot
stroke_dot
stroke_solid
teardrop_sizes
teardrop_rect_sizes
teardrop_track_sizes
tune_diff_pair_length_legend
tune_diff_pair_skew_legend
tune_single_track_length_legend

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After

Width:  |  Height:  |  Size: 15 KiB

View File

@ -1045,6 +1045,9 @@ const std::vector<BITMAP_INFO> g_BitmapInfo = {
{ BITMAPS::stroke_dashdotdot, wxT( "stroke_dashdotdot.png" ), -1, wxT( "light" ) },
{ BITMAPS::stroke_dot, wxT( "stroke_dot.png" ), -1, wxT( "light" ) },
{ BITMAPS::stroke_solid, wxT( "stroke_solid.png" ), -1, wxT( "light" ) },
{ BITMAPS::teardrop_sizes, wxT( "teardrop_sizes.png" ), -1, wxT( "light" ) },
{ BITMAPS::teardrop_rect_sizes, wxT( "teardrop_rect_sizes.png" ), -1, wxT( "light" ) },
{ BITMAPS::teardrop_track_sizes, wxT( "teardrop_track_sizes.png" ), -1, wxT( "light" ) },
{ BITMAPS::tune_diff_pair_length_legend, wxT( "tune_diff_pair_length_legend.png" ), -1, wxT( "light" ) },
{ BITMAPS::tune_diff_pair_skew_legend, wxT( "tune_diff_pair_skew_legend.png" ), -1, wxT( "light" ) },
{ BITMAPS::tune_single_track_length_legend, wxT( "tune_single_track_length_legend.png" ), -1, wxT( "light" ) },
@ -1080,6 +1083,9 @@ const std::vector<BITMAP_INFO> g_BitmapInfo = {
{ BITMAPS::stroke_dashdotdot, wxT( "stroke_dashdotdot_dark.png" ), -1, wxT( "dark" ) },
{ BITMAPS::stroke_dot, wxT( "stroke_dot_dark.png" ), -1, wxT( "dark" ) },
{ BITMAPS::stroke_solid, wxT( "stroke_solid_dark.png" ), -1, wxT( "dark" ) },
{ BITMAPS::teardrop_sizes, wxT( "teardrop_sizes_dark.png" ), -1, wxT( "dark" ) },
{ BITMAPS::teardrop_rect_sizes, wxT( "teardrop_rect_sizes_dark.png" ), -1, wxT( "dark" ) },
{ BITMAPS::teardrop_track_sizes, wxT( "teardrop_track_sizes_dark.png" ), -1, wxT( "dark" ) },
{ BITMAPS::tune_diff_pair_length_legend, wxT( "tune_diff_pair_length_legend_dark.png" ), -1, wxT( "dark" ) },
{ BITMAPS::tune_diff_pair_skew_legend, wxT( "tune_diff_pair_skew_legend_dark.png" ), -1, wxT( "dark" ) },
{ BITMAPS::tune_single_track_length_legend, wxT( "tune_single_track_length_legend_dark.png" ), -1, wxT( "dark" ) },

View File

@ -529,6 +529,9 @@ enum class BITMAPS : unsigned int
stroke_solid,
swap_layer,
switch_corner_rounding_shape,
teardrop_sizes,
teardrop_rect_sizes,
teardrop_track_sizes,
text,
text_align_left,
text_align_center,

View File

@ -40,6 +40,8 @@ include_directories(
)
set( PCBNEW_DIALOGS
teardrop/dialog_teardrop_base.cpp
teardrop/dialog_teardrop.cpp
dialogs/dialog_filter_selection.cpp
dialogs/dialog_filter_selection_base.cpp
dialogs/dialog_board_setup.cpp
@ -349,6 +351,8 @@ set( PCBNEW_CLASS_SRCS
tools/tool_event_utils.cpp
tools/zone_create_helper.cpp
tools/zone_filler_tool.cpp
teardrop/teardrop.cpp
teardrop/teardrop_utils.cpp
footprint_preview_panel.cpp
footprint_tree_pane.cpp

View File

@ -402,6 +402,13 @@ void PCB_EDIT_FRAME::ReCreateMenuBar()
toolsMenu->Add( ACTIONS::showFootprintEditor );
toolsMenu->Add( PCB_ACTIONS::updateFootprints );
toolsMenu->AppendSeparator();
toolsMenu->Add( _( "Add Teardrops" ), "",
ID_RUN_TEARDROP_TOOL, BITMAPS::via );
toolsMenu->Add( _( "Remove Teardrops" ), "",
ID_REMOVE_TEARDROP_TOOL, BITMAPS::via );
toolsMenu->AppendSeparator();
toolsMenu->Add( PCB_ACTIONS::cleanupTracksAndVias );
toolsMenu->Add( PCB_ACTIONS::removeUnusedPads );

View File

@ -136,6 +136,9 @@ BEGIN_EVENT_TABLE( PCB_EDIT_FRAME, PCB_BASE_FRAME )
EVT_MENU( ID_GEN_EXPORT_FILE_STEP, PCB_EDIT_FRAME::OnExportSTEP )
EVT_MENU( ID_GEN_EXPORT_FILE_HYPERLYNX, PCB_EDIT_FRAME::OnExportHyperlynx )
EVT_MENU( ID_RUN_TEARDROP_TOOL, PCB_EDIT_FRAME::OnRunTeardropTool )
EVT_MENU( ID_REMOVE_TEARDROP_TOOL, OnRemoveTeardropTool )
EVT_MENU( ID_MENU_EXPORT_FOOTPRINTS_TO_LIBRARY, PCB_EDIT_FRAME::Process_Special_Functions )
EVT_MENU( ID_MENU_EXPORT_FOOTPRINTS_TO_NEW_LIBRARY, PCB_EDIT_FRAME::Process_Special_Functions )

View File

@ -114,6 +114,10 @@ enum pcbnew_ids
ID_ADD_FOOTPRINT_TO_BOARD,
ID_LOAD_FOOTPRINT_FROM_BOARD,
ID_RUN_TEARDROP_TOOL,
ID_REMOVE_TEARDROP_TOOL,
ID_PCB_UNUSED1,
ID_PCBNEW_END_LIST
};

View File

@ -5570,6 +5570,12 @@ ZONE* PCB_PARSER::parseZONE( BOARD_ITEM_CONTAINER* aParent )
case T_name:
NextTok();
zone->SetZoneName( FromUTF8() );
// TODO: remove this hack and replace it when a suitable token is added
// If a zone name is $teardrop$, set its teardrop property flag
if( zone->GetZoneName() == "$teardrop$" )
zone->SetIsTeardropArea( true );
NeedRIGHT();
break;

View File

@ -0,0 +1,188 @@
/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2021 Jean-Pierre Charras, jp.charras at wanadoo.fr
* Copyright (C) 2021 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 <board_design_settings.h>
#include <board_commit.h>
#include <bitmaps.h>
#include "teardrop.h"
#include "dialog_teardrop_base.h"
#include <widgets/unit_binder.h>
class TEARDROP_DIALOG: public TEARDROP_DIALOG_BASE
{
public:
TEARDROP_DIALOG( PCB_EDIT_FRAME* aParent ):
TEARDROP_DIALOG_BASE( aParent ),
m_frame( aParent ),
m_teardropMaxLenSetting( aParent,m_stMaxLen, m_tcTdMaxLen, m_stLenUnit ),
m_teardropMaxHeightSetting( aParent, m_stTdMaxSize, m_tcMaxSize, m_stSizeUnit )
{
// Setup actual bitmaps that cannot be set inside wxFormBuilder:
m_bitmapTdCircularInfo->SetBitmap( KiBitmap( BITMAPS::teardrop_sizes ) );
m_bitmapTdRectangularInfo->SetBitmap( KiBitmap( BITMAPS::teardrop_rect_sizes ) );
m_bitmapTdTrackInfo->SetBitmap( KiBitmap( BITMAPS::teardrop_track_sizes ) );
m_spTeardropLenPercent->SetValue( m_teardropLenPrm );
m_spTeardropSizePercent->SetValue( m_teardropSizePrm );
m_cbSmdSimilarPads->SetValue( m_includeNotPTH );
m_cbRoundShapesOnly->SetValue( m_roundShapesOnly );
m_rbShape->SetSelection( m_curveOption );
m_cbOptUseNextTrack->SetValue( m_canUseTwoTracks );
m_spPointCount->SetValue( m_curveSegCount );
m_cbTrack2Track->SetValue( m_track2Track );
m_cbPadVia->SetValue( m_includeViasAndPTH );
m_teardropMaxLenSetting.SetValue( m_teardropMaxLenPrm );
m_teardropMaxHeightSetting.SetValue( m_teardropMaxSizePrm );
// recalculate sizers, now the bitmap is initialized
finishDialogSettings();
}
~TEARDROP_DIALOG()
{
m_teardropLenPrm = m_spTeardropLenPercent->GetValue();
m_teardropSizePrm = m_spTeardropSizePercent->GetValue();
m_teardropMaxLenPrm = m_teardropMaxLenSetting.GetValue();
m_teardropMaxSizePrm = m_teardropMaxHeightSetting.GetValue();
m_roundShapesOnly = m_cbRoundShapesOnly->GetValue();
m_includeNotPTH = m_cbSmdSimilarPads->GetValue();
m_curveOption = m_rbShape->GetSelection();
m_canUseTwoTracks = m_cbOptUseNextTrack->GetValue();
m_curveSegCount = m_spPointCount->GetValue();
m_track2Track = m_cbTrack2Track->GetValue();
m_includeViasAndPTH = m_cbPadVia->GetValue();
}
CURVED_OPTION CurvedShapeOption()
{
return (CURVED_OPTION) m_rbShape->GetSelection();
}
// Options for curved shapes
int GetCurvePointCount() { return m_spPointCount->GetValue(); }
double GetTeardropLenPercent() { return m_spTeardropLenPercent->GetValue()/100.0; }
double GetTeardropSizePercent() { return m_spTeardropSizePercent->GetValue()/100.0; }
int GetTeardropMaxLen() { return m_teardropMaxLenSetting.GetValue(); }
int GetTeardropMaxHeight() { return m_teardropMaxHeightSetting.GetValue(); }
// Optins to filter pads
bool TeardropOnPadVia() { return m_cbPadVia->GetValue(); }
bool IncludeNotPTH() { return m_cbSmdSimilarPads->GetValue(); }
bool RoundShapesOnly() { return m_cbRoundShapesOnly->GetValue(); }
bool CanUseTwoTracks() { return m_cbOptUseNextTrack->GetValue(); }
bool TeardropOnTracks() { return m_cbTrack2Track->GetValue(); }
private:
PCB_EDIT_FRAME* m_frame;
UNIT_BINDER m_teardropMaxLenSetting;
UNIT_BINDER m_teardropMaxHeightSetting;
// Used to store settings during a session:
static double m_teardropLenPrm;
static double m_teardropSizePrm;
static int m_teardropMaxLenPrm;
static int m_teardropMaxSizePrm;
static bool m_includeNotPTH;
static bool m_roundShapesOnly;
static int m_curveOption;
static bool m_canUseTwoTracks;
static int m_curveSegCount;
static bool m_track2Track;
static bool m_includeViasAndPTH;
};
// Store settings during a session:
double TEARDROP_DIALOG::m_teardropLenPrm = 50;
double TEARDROP_DIALOG::m_teardropSizePrm = 100;
int TEARDROP_DIALOG::m_teardropMaxLenPrm = Millimeter2iu( 1.0 );
int TEARDROP_DIALOG::m_teardropMaxSizePrm = Millimeter2iu( 2.0 );
bool TEARDROP_DIALOG::m_includeNotPTH = true;
bool TEARDROP_DIALOG::m_roundShapesOnly = false;
int TEARDROP_DIALOG::m_curveOption = 0;
bool TEARDROP_DIALOG::m_canUseTwoTracks = true;
int TEARDROP_DIALOG::m_curveSegCount = 5;
bool TEARDROP_DIALOG::m_track2Track = true;
bool TEARDROP_DIALOG::m_includeViasAndPTH = true;
void PCB_EDIT_FRAME::OnRunTeardropTool( wxCommandEvent& event )
{
TEARDROP_DIALOG dlg( this );
if( dlg.ShowModal() != wxID_OK )
return;
wxBusyCursor dummy;
BOARD_COMMIT committer( this );
TEARDROP_MANAGER trdm( GetBoard(), this );
int shape_seg_count;
if( dlg.CurvedShapeOption() != CURVED_OPTION::OPTION_NONE )
shape_seg_count = dlg.GetCurvePointCount();
else
shape_seg_count = 1;
trdm.SetTeardropMaxSize( dlg.GetTeardropMaxLen(), dlg.GetTeardropMaxHeight() );
trdm.SetTeardropSizeRatio( dlg.GetTeardropLenPercent(), dlg.GetTeardropSizePercent() );
trdm.SetTeardropCurvedPrms( dlg.CurvedShapeOption(), shape_seg_count );
const bool discardTeardropInSameZone = true;
trdm.SetTargets( dlg.TeardropOnPadVia(), dlg.RoundShapesOnly(),
dlg.IncludeNotPTH(), dlg.TeardropOnTracks() );
int added_count = trdm.SetTeardrops( &committer,
discardTeardropInSameZone,
dlg.CanUseTwoTracks() );
m_infoBar->RemoveAllButtons();
m_infoBar->AddCloseButton();
m_infoBar->ShowMessageFor( wxString::Format( _( "%d Teardrops created" ),
added_count ),
1000, wxICON_EXCLAMATION );
}
void PCB_EDIT_FRAME::OnRemoveTeardropTool( wxCommandEvent& event )
{
BOARD_COMMIT committer( this );
TEARDROP_MANAGER trdm( GetBoard(), this );
int count = trdm.RemoveTeardrops( &committer, true );
m_infoBar->RemoveAllButtons();
m_infoBar->AddCloseButton();
m_infoBar->ShowMessageFor( wxString::Format( _( "%d Teardrops removed." ), count ),
1000, wxICON_EXCLAMATION );
}

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///////////////////////////////////////////////////////////////////////////
// C++ code generated with wxFormBuilder (version 3.10.0-39-g3487c3cb)
// http://www.wxformbuilder.org/
//
// PLEASE DO *NOT* EDIT THIS FILE!
///////////////////////////////////////////////////////////////////////////
#include "dialog_teardrop_base.h"
///////////////////////////////////////////////////////////////////////////
TEARDROP_DIALOG_BASE::TEARDROP_DIALOG_BASE( wxWindow* parent, wxWindowID id, const wxString& title, const wxPoint& pos, const wxSize& size, long style ) : DIALOG_SHIM( parent, id, title, pos, size, style )
{
this->SetSizeHints( wxDefaultSize, wxDefaultSize );
wxBoxSizer* bSizerMain;
bSizerMain = new wxBoxSizer( wxVERTICAL );
wxBoxSizer* bSizerUpper;
bSizerUpper = new wxBoxSizer( wxVERTICAL );
wxBoxSizer* bSizerTop;
bSizerTop = new wxBoxSizer( wxVERTICAL );
wxBoxSizer* bSizeScopeSize;
bSizeScopeSize = new wxBoxSizer( wxHORIZONTAL );
wxBoxSizer* bSizerBitmaps;
bSizerBitmaps = new wxBoxSizer( wxVERTICAL );
m_bitmapTdCircularInfo = new wxStaticBitmap( this, wxID_ANY, wxNullBitmap, wxDefaultPosition, wxDefaultSize, 0 );
bSizerBitmaps->Add( m_bitmapTdCircularInfo, 0, wxALL, 5 );
m_bitmapTdRectangularInfo = new wxStaticBitmap( this, wxID_ANY, wxNullBitmap, wxDefaultPosition, wxDefaultSize, 0 );
bSizerBitmaps->Add( m_bitmapTdRectangularInfo, 0, wxALL, 5 );
m_bitmapTdTrackInfo = new wxStaticBitmap( this, wxID_ANY, wxNullBitmap, wxDefaultPosition, wxDefaultSize, 0 );
bSizerBitmaps->Add( m_bitmapTdTrackInfo, 0, wxALL, 5 );
bSizeScopeSize->Add( bSizerBitmaps, 0, wxEXPAND, 5 );
bSizeScopeSize->Add( 0, 0, 1, wxEXPAND, 5 );
wxFlexGridSizer* fgSizerSizes;
fgSizerSizes = new wxFlexGridSizer( 0, 3, 0, 0 );
fgSizerSizes->SetFlexibleDirection( wxBOTH );
fgSizerSizes->SetNonFlexibleGrowMode( wxFLEX_GROWMODE_SPECIFIED );
m_stMaxLen = new wxStaticText( this, wxID_ANY, wxT("Max lenght"), wxDefaultPosition, wxDefaultSize, 0 );
m_stMaxLen->Wrap( -1 );
fgSizerSizes->Add( m_stMaxLen, 0, wxALL|wxALIGN_CENTER_VERTICAL, 5 );
m_tcTdMaxLen = new wxTextCtrl( this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0 );
fgSizerSizes->Add( m_tcTdMaxLen, 0, wxALL, 5 );
m_stLenUnit = new wxStaticText( this, wxID_ANY, wxT("mm"), wxDefaultPosition, wxDefaultSize, 0 );
m_stLenUnit->Wrap( -1 );
fgSizerSizes->Add( m_stLenUnit, 0, wxALL|wxALIGN_CENTER_VERTICAL, 5 );
m_stHsetting = new wxStaticText( this, wxID_ANY, wxT("Best lenght"), wxDefaultPosition, wxDefaultSize, 0 );
m_stHsetting->Wrap( -1 );
fgSizerSizes->Add( m_stHsetting, 0, wxALL|wxALIGN_CENTER_VERTICAL, 5 );
m_spTeardropLenPercent = new wxSpinCtrlDouble( this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, wxSP_ARROW_KEYS, 20, 100, 50.000000, 10 );
m_spTeardropLenPercent->SetDigits( 0 );
fgSizerSizes->Add( m_spTeardropLenPercent, 0, wxALL|wxEXPAND, 5 );
m_stLenPercent = new wxStaticText( this, wxID_ANY, wxT("% of d"), wxDefaultPosition, wxDefaultSize, 0 );
m_stLenPercent->Wrap( -1 );
fgSizerSizes->Add( m_stLenPercent, 0, wxALL|wxALIGN_CENTER_VERTICAL, 5 );
m_staticline5 = new wxStaticLine( this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxLI_HORIZONTAL );
fgSizerSizes->Add( m_staticline5, 0, wxEXPAND | wxALL, 5 );
m_staticline6 = new wxStaticLine( this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxLI_HORIZONTAL );
fgSizerSizes->Add( m_staticline6, 0, wxEXPAND | wxALL, 5 );
m_staticline7 = new wxStaticLine( this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxLI_HORIZONTAL );
fgSizerSizes->Add( m_staticline7, 0, wxEXPAND | wxALL, 5 );
m_stTdMaxSize = new wxStaticText( this, wxID_ANY, wxT("Max height"), wxDefaultPosition, wxDefaultSize, 0 );
m_stTdMaxSize->Wrap( -1 );
fgSizerSizes->Add( m_stTdMaxSize, 0, wxALL|wxALIGN_CENTER_VERTICAL, 5 );
m_tcMaxSize = new wxTextCtrl( this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0 );
fgSizerSizes->Add( m_tcMaxSize, 0, wxALL, 5 );
m_stSizeUnit = new wxStaticText( this, wxID_ANY, wxT("mm"), wxDefaultPosition, wxDefaultSize, 0 );
m_stSizeUnit->Wrap( -1 );
fgSizerSizes->Add( m_stSizeUnit, 0, wxALL|wxALIGN_CENTER_VERTICAL, 5 );
m_stVsetting = new wxStaticText( this, wxID_ANY, wxT("Best height"), wxDefaultPosition, wxDefaultSize, 0 );
m_stVsetting->Wrap( -1 );
fgSizerSizes->Add( m_stVsetting, 0, wxALL|wxALIGN_CENTER_VERTICAL, 5 );
m_spTeardropSizePercent = new wxSpinCtrlDouble( this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, wxSP_ARROW_KEYS, 60, 100, 100.000000, 10 );
m_spTeardropSizePercent->SetDigits( 0 );
fgSizerSizes->Add( m_spTeardropSizePercent, 0, wxALL|wxEXPAND, 5 );
m_stTdSizePercent = new wxStaticText( this, wxID_ANY, wxT("% of d"), wxDefaultPosition, wxDefaultSize, 0 );
m_stTdSizePercent->Wrap( -1 );
fgSizerSizes->Add( m_stTdSizePercent, 0, wxALL|wxALIGN_CENTER_VERTICAL, 5 );
bSizeScopeSize->Add( fgSizerSizes, 0, wxEXPAND|wxALL, 5 );
bSizerTop->Add( bSizeScopeSize, 0, wxEXPAND, 5 );
bSizerUpper->Add( bSizerTop, 0, wxEXPAND, 5 );
wxBoxSizer* bSizerShape;
bSizerShape = new wxBoxSizer( wxHORIZONTAL );
wxStaticBoxSizer* sbSizerScope;
sbSizerScope = new wxStaticBoxSizer( new wxStaticBox( this, wxID_ANY, wxT("Scope") ), wxVERTICAL );
m_cbPadVia = new wxCheckBox( sbSizerScope->GetStaticBox(), wxID_ANY, wxT("Vias and PTH pads"), wxDefaultPosition, wxDefaultSize, 0 );
m_cbPadVia->SetValue(true);
sbSizerScope->Add( m_cbPadVia, 0, wxALL, 5 );
m_cbRoundShapesOnly = new wxCheckBox( sbSizerScope->GetStaticBox(), wxID_ANY, wxT("Round pads only"), wxDefaultPosition, wxDefaultSize, 0 );
sbSizerScope->Add( m_cbRoundShapesOnly, 0, wxALL, 5 );
m_cbSmdSimilarPads = new wxCheckBox( sbSizerScope->GetStaticBox(), wxID_ANY, wxT("Not Drilled Pads"), wxDefaultPosition, wxDefaultSize, 0 );
m_cbSmdSimilarPads->SetValue(true);
sbSizerScope->Add( m_cbSmdSimilarPads, 0, wxALL, 5 );
m_cbTrack2Track = new wxCheckBox( sbSizerScope->GetStaticBox(), wxID_ANY, wxT("Track to track"), wxDefaultPosition, wxDefaultSize, 0 );
sbSizerScope->Add( m_cbTrack2Track, 0, wxALL, 5 );
bSizerShape->Add( sbSizerScope, 0, 0, 5 );
bSizerShape->Add( 30, 10, 1, wxEXPAND, 5 );
wxString m_rbShapeChoices[] = { wxT("Straight lines"), wxT("Curved for round pads"), wxT("Curved for all pad shapes") };
int m_rbShapeNChoices = sizeof( m_rbShapeChoices ) / sizeof( wxString );
m_rbShape = new wxRadioBox( this, wxID_ANY, wxT("Teardrop style"), wxDefaultPosition, wxDefaultSize, m_rbShapeNChoices, m_rbShapeChoices, 1, wxRA_SPECIFY_COLS );
m_rbShape->SetSelection( 0 );
bSizerShape->Add( m_rbShape, 0, wxALL|wxALIGN_CENTER_VERTICAL, 5 );
bSizerShape->Add( 30, 0, 0, 0, 5 );
m_stPoinCount = new wxStaticText( this, wxID_ANY, wxT("Curve points"), wxDefaultPosition, wxDefaultSize, 0 );
m_stPoinCount->Wrap( -1 );
bSizerShape->Add( m_stPoinCount, 0, wxALL|wxALIGN_CENTER_VERTICAL, 5 );
m_spPointCount = new wxSpinCtrl( this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, wxSP_ARROW_KEYS, 3, 10, 5 );
bSizerShape->Add( m_spPointCount, 0, wxALL|wxALIGN_CENTER_VERTICAL, 5 );
bSizerUpper->Add( bSizerShape, 0, wxEXPAND, 5 );
wxStaticBoxSizer* sbSizerOptions;
sbSizerOptions = new wxStaticBoxSizer( new wxStaticBox( this, wxID_ANY, wxT("Options") ), wxVERTICAL );
m_cbOptUseNextTrack = new wxCheckBox( sbSizerOptions->GetStaticBox(), wxID_ANY, wxT("Allows use two tracks"), wxDefaultPosition, wxDefaultSize, 0 );
m_cbOptUseNextTrack->SetValue(true);
m_cbOptUseNextTrack->SetToolTip( wxT("Allows a teardrop to spread over 2 tracks if the first track segment is too short") );
sbSizerOptions->Add( m_cbOptUseNextTrack, 0, wxTOP|wxRIGHT|wxLEFT, 5 );
bSizerUpper->Add( sbSizerOptions, 1, wxEXPAND, 5 );
m_staticline1 = new wxStaticLine( this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxLI_HORIZONTAL );
bSizerUpper->Add( m_staticline1, 0, wxEXPAND | wxALL, 5 );
bSizerMain->Add( bSizerUpper, 1, wxEXPAND, 5 );
m_sdbSizer = new wxStdDialogButtonSizer();
m_sdbSizerOK = new wxButton( this, wxID_OK );
m_sdbSizer->AddButton( m_sdbSizerOK );
m_sdbSizerCancel = new wxButton( this, wxID_CANCEL );
m_sdbSizer->AddButton( m_sdbSizerCancel );
m_sdbSizer->Realize();
bSizerMain->Add( m_sdbSizer, 0, wxALIGN_RIGHT|wxALL, 5 );
this->SetSizer( bSizerMain );
this->Layout();
this->Centre( wxBOTH );
}
TEARDROP_DIALOG_BASE::~TEARDROP_DIALOG_BASE()
{
}

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///////////////////////////////////////////////////////////////////////////
// C++ code generated with wxFormBuilder (version 3.10.0-39-g3487c3cb)
// http://www.wxformbuilder.org/
//
// PLEASE DO *NOT* EDIT THIS FILE!
///////////////////////////////////////////////////////////////////////////
#pragma once
#include <wx/artprov.h>
#include <wx/xrc/xmlres.h>
#include "dialog_shim.h"
#include <wx/bitmap.h>
#include <wx/image.h>
#include <wx/icon.h>
#include <wx/statbmp.h>
#include <wx/gdicmn.h>
#include <wx/font.h>
#include <wx/colour.h>
#include <wx/settings.h>
#include <wx/string.h>
#include <wx/sizer.h>
#include <wx/stattext.h>
#include <wx/textctrl.h>
#include <wx/spinctrl.h>
#include <wx/statline.h>
#include <wx/checkbox.h>
#include <wx/statbox.h>
#include <wx/radiobox.h>
#include <wx/button.h>
#include <wx/dialog.h>
///////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
/// Class TEARDROP_DIALOG_BASE
///////////////////////////////////////////////////////////////////////////////
class TEARDROP_DIALOG_BASE : public DIALOG_SHIM
{
private:
protected:
wxStaticBitmap* m_bitmapTdCircularInfo;
wxStaticBitmap* m_bitmapTdRectangularInfo;
wxStaticBitmap* m_bitmapTdTrackInfo;
wxStaticText* m_stMaxLen;
wxTextCtrl* m_tcTdMaxLen;
wxStaticText* m_stLenUnit;
wxStaticText* m_stHsetting;
wxSpinCtrlDouble* m_spTeardropLenPercent;
wxStaticText* m_stLenPercent;
wxStaticLine* m_staticline5;
wxStaticLine* m_staticline6;
wxStaticLine* m_staticline7;
wxStaticText* m_stTdMaxSize;
wxTextCtrl* m_tcMaxSize;
wxStaticText* m_stSizeUnit;
wxStaticText* m_stVsetting;
wxSpinCtrlDouble* m_spTeardropSizePercent;
wxStaticText* m_stTdSizePercent;
wxCheckBox* m_cbPadVia;
wxCheckBox* m_cbRoundShapesOnly;
wxCheckBox* m_cbSmdSimilarPads;
wxCheckBox* m_cbTrack2Track;
wxRadioBox* m_rbShape;
wxStaticText* m_stPoinCount;
wxSpinCtrl* m_spPointCount;
wxCheckBox* m_cbOptUseNextTrack;
wxStaticLine* m_staticline1;
wxStdDialogButtonSizer* m_sdbSizer;
wxButton* m_sdbSizerOK;
wxButton* m_sdbSizerCancel;
public:
TEARDROP_DIALOG_BASE( wxWindow* parent, wxWindowID id = wxID_ANY, const wxString& title = wxT("Teardrop Settings"), const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxSize( 477,427 ), long style = wxDEFAULT_DIALOG_STYLE|wxRESIZE_BORDER );
~TEARDROP_DIALOG_BASE();
};

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2021 Jean-Pierre Charras, jp.charras at wanadoo.fr
* Copyright (C) 2021 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 <confirm.h>
#include <board_design_settings.h>
#include <pcb_track.h>
#include <pad.h>
#include <zone_filler.h>
#include <board_commit.h>
#include "teardrop.h"
#include <geometry/convex_hull.h>
#include <geometry/shape_line_chain.h>
#include <convert_basic_shapes_to_polygon.h>
#include <bezier_curves.h>
#include <wx/log.h>
void TEARDROP_MANAGER::SetTargets( bool aApplyToPadVias, bool aApplyToRoundShapesOnly,
bool aApplyToSurfacePads, bool aApplyToTracks )
{
m_applyToViaPads = aApplyToPadVias;
m_applyToRoundShapesOnly = aApplyToRoundShapesOnly;
m_applyToSurfacePads = aApplyToSurfacePads;
m_applyToTracks = aApplyToTracks;
}
// Build a zone teardrop
ZONE* TEARDROP_MANAGER::createTeardrop( TEARDROP_VARIANT aTeardropVariant,
std::vector<wxPoint>& aPoints, PCB_TRACK* aTrack)
{
ZONE* teardrop = new ZONE( m_board );
// Add zone properties (priority will be fixed later)
teardrop->SetIsTeardropArea( true );
teardrop->SetLayer( aTrack->GetLayer() );
teardrop->SetNetCode( aTrack->GetNetCode() );
teardrop->SetLocalClearance( 0 );
teardrop->SetMinThickness( Millimeter2iu( 0.0254 ) ); // The minimum zone thickness
teardrop->SetPadConnection( ZONE_CONNECTION::FULL );
teardrop->SetIsFilled( false );
teardrop->SetZoneName( aTeardropVariant == TD_TYPE_PADVIA ?
MAGIC_TEARDROP_PADVIA_NAME :
MAGIC_TEARDROP_TRACK_NAME );
teardrop->SetIslandRemovalMode( ISLAND_REMOVAL_MODE::NEVER );
SHAPE_POLY_SET* outline = teardrop->Outline();
outline->NewOutline();
for( wxPoint pt: aPoints )
outline->Append(pt.x, pt.y);
// Can be usefull:
teardrop->CalculateFilledArea();
return teardrop;
}
int TEARDROP_MANAGER::SetTeardrops( BOARD_COMMIT* aCommitter,
bool aDiscardInSameZone, bool aFollowTracks )
{
// Init parameters:
m_Parameters.m_tolerance = Millimeter2iu( 0.01 );
int count = 0; // Number of created teardrop
// Old teardrops must be removed, to ensure a clean teardrop rebuild
int removed_cnt = RemoveTeardrops( aCommitter, false );
// get vias, PAD_ATTRIB_PTH and others if aIncludeNotDrilled == true
// (custom pads are not collected)
std::vector< VIAPAD > viapad_list;
collectVias( viapad_list );
collectPadsCandidate( viapad_list, m_applyToRoundShapesOnly, m_applyToSurfacePads );
TRACK_BUFFER trackLookupList;
if( aFollowTracks )
{
// Build the track list (only straight lines)
for( PCB_TRACK* track: m_board->Tracks() )
{
if( track->Type() == PCB_TRACE_T )
{
int netcode = track->GetNetCode();
int layer = track->GetLayer();
trackLookupList.AddTrack( track, layer, netcode );
}
}
}
std::vector< ZONE*> teardrops;
collectTeardrops( teardrops );
for( PCB_TRACK* track : m_board->Tracks() )
{
if( track->Type() != PCB_TRACE_T )
continue;
// Search for a padvia connected to track, with one end inside and one end outside
// if both track ends are inside or outside, one cannot build a teadrop
for( VIAPAD& viapad: viapad_list )
{
bool start_in_pad = viapad.m_Parent->HitTest( track->GetStart() );
bool end_in_pad = viapad.m_Parent->HitTest( track->GetEnd() );
if( end_in_pad == start_in_pad )
// the track is inside or outside the via pad. Cannot create a teardrop
continue;
// Ensure a teardrop shape can be built:
// The track width must be < teardrop height
if( track->GetWidth() >= m_Parameters.m_tdMaxHeight
|| track->GetWidth() >= viapad.m_Width * m_Parameters.m_heightRatio )
continue;
// Pad and track must be on the same layer
if( !viapad.IsOnLayer( track->GetLayer() ) )
continue;
// Skip case where pad/via and the track is within a copper zone with the same net
// (and the pad can be connected by the zone thermal relief )
if( aDiscardInSameZone && isViaAndTrackInSameZone( viapad, track ) )
continue;
std::vector<wxPoint> points;
bool success = computeTeardropPolygonPoints( points, track, viapad,
aFollowTracks, trackLookupList );
if( success )
{
ZONE* new_teardrop = createTeardrop( TD_TYPE_PADVIA, points, track );
m_board->Add( new_teardrop, ADD_MODE::BULK_INSERT );
m_createdTdList.push_back( new_teardrop );
if( aCommitter )
aCommitter->Added( new_teardrop );
count += 1;
}
}
}
int track2trackCount = 0;
if( m_applyToTracks )
track2trackCount = addTeardropsOnTracks( aCommitter );
// Now set priority of teardrops now all teardrops are added
setTeardropPriorities();
if( count || removed_cnt || track2trackCount )
{
ZONE_FILLER filler( m_board, aCommitter );
filler.Fill( m_board->Zones() );
if( aCommitter )
aCommitter->Push( _( "Add teardrops" ) );
}
return count + track2trackCount;
}
void TEARDROP_MANAGER::setTeardropPriorities()
{
int priority_base = MAGIC_TEARDROP_ZONE_ID;
// The sort function to sort by increasing copper layers. Group by layers.
// For same layers sort by decreasing areas
struct
{
bool operator()(ZONE* a, ZONE* b) const
{
if( a->GetLayer() == b->GetLayer() )
return a->GetOutlineArea() > b->GetOutlineArea();
return a->GetLayer() < b->GetLayer();
}
} compareLess;
for( ZONE* td: m_createdTdList )
td->CalculateOutlineArea();
std::sort( m_createdTdList.begin(), m_createdTdList.end(), compareLess );
int curr_layer = -1;
for( ZONE* td: m_createdTdList )
{
if( td->GetLayer() != curr_layer )
{
curr_layer = td->GetLayer();
priority_base = MAGIC_TEARDROP_ZONE_ID;
}
td->SetPriority( priority_base++ );
}
}
int TEARDROP_MANAGER::addTeardropsOnTracks( BOARD_COMMIT* aCommitter )
{
TRACK_BUFFER trackLookupList;
int count = 0;
// Build the track list (only straight lines)
for( PCB_TRACK* track: m_board->Tracks() )
{
if( track->Type() == PCB_TRACE_T )
{
int netcode = track->GetNetCode();
int layer = track->GetLayer();
trackLookupList.AddTrack( track, layer, netcode );
}
}
// get vias and pads (custom pads are not collected). We do not create a track to track
// teardrop inside a pad or via area
std::vector< VIAPAD > viapad_list;
collectVias( viapad_list );
collectPadsCandidate( viapad_list, true, true );
// Explore groups (a group is a set of tracks on the same layer and the same net):
for( auto grp : trackLookupList.GetBuffer() )
{
int layer, netcode;
TRACK_BUFFER::GetNetcodeAndLayerFromIndex( grp.first, &layer, &netcode );
std::vector<PCB_TRACK*>* sublist = grp.second;
if( sublist->size() <= 1 ) // We need at least 2 track segments
continue;
// The sort function to sort by increasing track widths
struct
{
bool operator()(PCB_TRACK* a, PCB_TRACK* b) const
{ return a->GetWidth() < b->GetWidth(); }
} compareLess;
std::sort( sublist->begin(), sublist->end(), compareLess );
int min_width = sublist->front()->GetWidth();
int max_width = sublist->back()->GetWidth();
// Skip groups having the same track thickness
if( max_width == min_width )
continue;
for( unsigned ii = 0; ii < sublist->size()-1; ii++ )
{
PCB_TRACK* track = (*sublist)[ii];
int track_len = track->GetLength();
min_width = track->GetWidth();
// to avoid creating a teardrop between 2 tracks having similar widths
// give a threshold
const double th = 1.2;
min_width = min_width * th;
for( unsigned jj = ii+1; jj < sublist->size(); jj++ )
{
// Seach candidates with thickness > curr thickness
PCB_TRACK* candidate = (*sublist)[jj];
if( min_width >= candidate->GetWidth() )
continue;
// Cannot build a teardrop on a too short track segment.
// The min len is > candidate radius
if( track_len <= candidate->GetWidth() /2 )
continue;
// Now test end to end connection:
EDA_ITEM_FLAGS match_points; // to return the end point EDA_ITEM_FLAGS:
// 0, STARTPOINT, ENDPOINT
wxPoint roundshape_pos = candidate->GetStart();
ENDPOINT_T endPointCandidate = ENDPOINT_START;
match_points = track->IsPointOnEnds( roundshape_pos, m_Parameters.m_tolerance);
if( !match_points )
{
roundshape_pos = candidate->GetEnd();
match_points = track->IsPointOnEnds( roundshape_pos, m_Parameters.m_tolerance);
endPointCandidate = ENDPOINT_END;
}
// Ensure a pad or via is not on test_pos point before creating a teardrop
// at this location
for( VIAPAD& viapad : viapad_list )
{
if( viapad.IsOnLayer( track->GetLayer() )
&& viapad.m_Parent->HitTest( roundshape_pos, 0 ) )
{
match_points = 0;
break;
}
}
if( match_points )
{
VIAPAD viatrack( candidate, endPointCandidate );
std::vector<wxPoint> points;
bool success = computeTeardropPolygonPoints( points, track, viatrack,
false, trackLookupList );
if( success )
{
ZONE* new_teardrop = createTeardrop( TD_TYPE_TRACKEND, points, track );
m_board->Add( new_teardrop, ADD_MODE::BULK_INSERT );
m_createdTdList.push_back( new_teardrop );
if( aCommitter )
aCommitter->Added( new_teardrop );
count += 1;
}
}
}
}
}
return count;
}
int TEARDROP_MANAGER::RemoveTeardrops( BOARD_COMMIT* aCommitter, bool aCommitAfterRemove )
{
int count = 0;
std::vector< ZONE*> teardrops;
collectTeardrops( teardrops );
for( ZONE* teardrop : teardrops )
{
m_board->Remove( teardrop, REMOVE_MODE::BULK );
if( aCommitter )
aCommitter->Removed( teardrop );
count += 1;
}
if( count )
{
ZONE_FILLER filler( m_board, aCommitter );
filler.Fill( m_board->Zones() );
if( aCommitter && aCommitAfterRemove )
aCommitter->Push( _( "Remove teardrops" ) );
}
return count;
}

414
pcbnew/teardrop/teardrop.h Normal file
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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2021 Jean-Pierre Charras, jp.charras at wanadoo.fr
* Copyright (C) 2021 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 <pcb_edit_frame.h>
#include <board.h>
#include <footprint.h>
#include <pad.h>
#include <pcb_track.h>
#include <zone.h>
// TODO: remove MAGIC_TEARDROP_ZONE_ID use to identifay teardrops
// Use only MAGIC_TEARDROP_NAME, and later a specific property
#define MAGIC_TEARDROP_ZONE_ID 0x4242
#define MAGIC_TEARDROP_PADVIA_NAME "$teardrop_padvia$"
#define MAGIC_TEARDROP_TRACK_NAME "$teardrop_track$"
#define MAGIC_TEARDROP_BASE_NAME "$teardrop_"
class TRACK_BUFFER;
/**
* Stores info of a pad, via or track end to build a teardrop
*/
struct VIAPAD
{
VIAPAD( PCB_VIA* aVia );
VIAPAD( PAD* aPad );
VIAPAD( PCB_TRACK* aTrack, ENDPOINT_T aEndPoint );
bool IsOnLayer( PCB_LAYER_ID aLayer ) const
{
return m_Parent->IsOnLayer( aLayer );
}
wxPoint m_Pos;
int m_Width; // The diameter of a round shape, or the min size for others
int m_Drill;
int m_NetCode;
bool m_IsRound; // true for round shapes, false for any other shape
bool m_IsPad; // true for pads, false for vias and tracks
BOARD_CONNECTED_ITEM* m_Parent;
};
enum class CURVED_OPTION
{
OPTION_NONE, // No curved teardrop shape
OPTION_ROUND, // Curved teardrop shape for vias and round pads
OPTION_ALL_PADS, // Curved teardrop shape for all pads but custom
};
/**
* TEARDROP_PARAMETARS is a helper class to handle parameters needed to build teardrops
* for a board
* these parameters are sizes and filters
*/
class TEARDROP_PARAMETERS
{
friend class TEARDROP_MANAGER;
public:
TEARDROP_PARAMETERS():
m_tdMaxLen( Millimeter2iu( 1.0 ) ),
m_tdMaxHeight( Millimeter2iu( 2.0 ) ),
m_lenghtRatio( 0.5),
m_heightRatio( 1.0 ),
m_curveSegCount( 0 ),
m_tolerance( Millimeter2iu( 0.01 ) ),
m_curveOpt( CURVED_OPTION::OPTION_NONE )
{
}
/**
* Set max allowed lenght and height for teardrops in IU.
* a value <= 0 disable the constraint
*/
void SetTeardropMaxSize( int aMaxLen, int aMaxHeight )
{
m_tdMaxLen = aMaxLen;
m_tdMaxHeight = aMaxHeight;
}
/**
* Set prefered lenght and height ratio for teardrops
* the prefered lenght and height are VIAPAD width * aLenghtRatio and
* VIAPAD width * aHeightRatio
*/
void SetTeardropSizeRatio( double aLenghtRatio = 0.5, double aHeightRatio = 1.0 )
{
m_lenghtRatio = aLenghtRatio;
m_heightRatio = aHeightRatio;
}
/**
* Set the params for teardrop using curved shape
* note: if aCurveSegCount is < 3, the shape uses a straight line
*/
void SetTeardropCurvedPrms( CURVED_OPTION aCurveOpt = CURVED_OPTION::OPTION_NONE,
int aCurveSegCount = 5 )
{
m_curveOpt = aCurveOpt;
m_curveSegCount = aCurveSegCount;
}
protected:
int m_tdMaxLen; /// max allowed lenght for teardrops in IU. <= 0 to disable
int m_tdMaxHeight; /// max allowed height for teardrops in IU. <= 0 to disable
double m_lenghtRatio; /// The lenght of a teardrop as ratio between lenght and size of pad/via
double m_heightRatio; /// The height of a teardrop as ratio between height and size of pad/via
int m_curveSegCount; /// number of segments to build the curved sides of a teardrop area
/// must be > 2. for values <= 2 a straight line is used
int m_tolerance; /// the max distance between a track end and a padvia position to see
/// them connected
CURVED_OPTION m_curveOpt;
};
/**
* TEARDROP_MANAGER manage and build teardrop areas
* A teardrop area is a polygonal area (a copper ZONE) having:
* 2 points on the track connected to a pad or via
* 2 points on the outline of this pad or via
* 1 point near the pad/via position (calculated in order to have this pad/via position
* inside the area
* The 2 sides joining a point on the track to the corresponding point on the pad/via
* outline can be a straight line or a curved shape (defined from a Bezier curve)
* This curved shape is built by segments (3 to 10) from this Bezier curve
* Because one cannot build a suitable shape for a custom pad, custom pads are ignored.
* Size of area (height and lenght) are defined from the pad/via size or for pads having
* a size X and a size Y, the smallest of X,Y size.
*/
class TEARDROP_MANAGER
{
friend class TEARDROP_PARAMETERS;
public:
enum TEARDROP_VARIANT
{
TD_TYPE_PADVIA, // Specify a teardrop on a pad via
TD_TYPE_TRACKEND // specify a teardrop on a rond end of a wide track
};
TEARDROP_MANAGER( BOARD* aBoard, PCB_EDIT_FRAME* aFrame ) :
m_applyToViaPads( true ),
m_applyToRoundShapesOnly( false ),
m_applyToSurfacePads( true ),
m_board( aBoard )
{}
/**
* Set teardrops on a teardrop free board
* @return the number of teardrop created
* @param aCommitter is a BOARD_COMMIT reference (can be null)
* @param aDiscardInSameZone = to do not create teardrops for pads in a zone of the same net
* @param aFollowTracks = true to use a track connected to the initial track connected
* to a pad / via if this initial track is too short to build the teardrop
*/
int SetTeardrops( BOARD_COMMIT* aCommitter,
bool aDiscardInSameZone = true,
bool aFollowTracks = true );
/**
* Remove all teardrops
* @return the count of removed teardrops
* @param aCommitter is a BOARD_COMMITto handle undo/Redo commands
* @param aCommitAfterRemove = true to commit when removed,
* false if some other changes must be made and the actual commit postponed
* Can be nullptr
*/
int RemoveTeardrops( BOARD_COMMIT* aCommitter, bool aCommitAfterRemove );
/**
* Set max allowed lenght and height for teardrops in IU.
* a value <= 0 disable the constraint
*/
void SetTeardropMaxSize( int aMaxLen, int aMaxHeight )
{
m_Parameters.SetTeardropMaxSize( aMaxLen, aMaxHeight );
}
/**
* Set prefered lenght and height ratio for teardrops
* the prefered lenght and height are VIAPAD width * aLenghtRatio and
* VIAPAD width * aHeightRatio
*/
void SetTeardropSizeRatio( double aLenghtRatio = 0.5, double aHeightRatio = 1.0 )
{
m_Parameters.SetTeardropSizeRatio( aLenghtRatio, aHeightRatio );
}
/**
* Set the params for teardrop using curved shape
* note: if aSegCount is < 3, the shape uses a straight line
*/
void SetTeardropCurvedPrms( CURVED_OPTION aCurveOpt = CURVED_OPTION::OPTION_NONE,
int aCurveSegCount = 5 )
{
m_Parameters.SetTeardropCurvedPrms( aCurveOpt, aCurveSegCount );
}
/**
* Define the items used to add a teardrop
* @param aApplyToPadVias = true to add Td to vias and PTH
* @param aApplyToRoundShapesOnly = true to restrict Td on round PTH
* @param aApplyToSurfacePads = true to add Td to not drilled pads (like SMD)
* @param aApplyToTracks = true to add Td to tracks connected point when having
* different sizes
*/
void SetTargets( bool aApplyToPadVias, bool aApplyToRoundShapesOnly,
bool aApplyToSurfacePads, bool aApplyToTracks );
TEARDROP_PARAMETERS m_Parameters;
private:
/**
* Collect and build the list of all vias from the given board
*/
void collectVias( std::vector< VIAPAD >& aList );
/**
* Build a list of pads candidate for teardrops from the given board
* Pads with no net are not candidate (and have no track connected
* Custom pads are not candidate because one cannot define a teardrop shape
* @param aList is the list of VIAPAD to fill
* @param aRoundShapesOnly = true to ignore not round shapes
* @param aIncludeNotDrilled = true to include not drilled pads like SMD
*/
void collectPadsCandidate( std::vector< VIAPAD >& aList,
bool aRoundShapesOnly,
bool aIncludeNotDrilled );
/**
* Build a list of all teardrops on the current board
* @param aList is the list to populate
*/
void collectTeardrops( std::vector< ZONE* >& aList );
/**
* Add teardrop on tracks of different sizes connected by their end
*/
int addTeardropsOnTracks( BOARD_COMMIT* aCommitter );
/**
* @return true if the given aVia + aTrack is located inside a zone of the same netname
*/
bool isViaAndTrackInSameZone( VIAPAD& aVia, PCB_TRACK* aTrack) const;
/**
* Compute the curve part points for teardrops connected to a round shape
* The Bezier curve control points are optimized for a round pad/via shape,
* and do not give a good curve shape for other pad shapes
* use m_m_heightRatio
*/
void computeCurvedForRoundShape( std::vector<wxPoint>& aPoly,
int aTrackHalfWidth,
VECTOR2D aTrackDir, VIAPAD& aViaPad,
std::vector<wxPoint>& aPts ) const;
/**
* Compute the curve part points for teardrops connected to a rectangular/polygonal shape
* The Bezier curve control points are not optimized for a special shape,
* so use computeCurvedForRoundShape() for round shapes for better result
*/
void computeCurvedForRectShape( std::vector<wxPoint>& aPoly, int aTdHeight,
int aTrackHalfWidth, VIAPAD& aViaPad,
std::vector<wxPoint>& aPts ) const;
/**
* Compute all teardrop points of the polygon shape
* @return true if the polygonal shape was calculated, false if not buildable
* use m_lenghtRatio and m_heightRatio
*/
bool computeTeardropPolygonPoints( std::vector<wxPoint>& aCorners,
PCB_TRACK* aTrack, VIAPAD& aVia,
bool aFollowTracks,
TRACK_BUFFER& aTrackLookupList) const;
/**
* Compute the 2 points on pad/via of the teardrop shape
* @return false if these 2 points are not found
* @param aTrack is the reference track included in teardrop
* @param aViaPad is the teardrop anchor
* teardrop height = aViaPad size * aHeightRatio
* @param aPts is the buffer that contains initial and final teardrop polygonal shape
* in aPts:
* A and B ( aPts[0] and aPts[1] ) are points on the track
* C and E ( aPts[2] and aPts[4] ) are points on the aViaPad
* D ( aPts[3] ) is midpoint behind the aViaPad centre
* m_heightRatio is the factor to calculate the aViaPad teardrop size
*/
bool ComputePointsOnPadVia( PCB_TRACK* aTrack, VIAPAD& aViaPad,
std::vector<wxPoint>& aPts ) const;
/**
* Find a track connected to the end of another track
* @return a reference to the touching track (or nullptr)
* @param aMatchType returns the end point id 0, STARTPOINT, ENDPOINT
* @param aTrackRef is the reference track
* @param aEndpoint is the coordinate to test
* @param aTrackLookupList is the buffer of available tracks
*/
PCB_TRACK* findTouchingTrack( EDA_ITEM_FLAGS& aMatchType, PCB_TRACK* aTrackRef,
const wxPoint& aEndPoint,
TRACK_BUFFER& aTrackLookupList ) const;
/**
* Creates a teardrop (a ZONE item) from its polygonal shape, track netcode and layer
* @param aTeardropVariant = variant of the teardrop( attached to a pad, or a track end )
* @param aPoints is the polygonal shape
* @param aTrack is the track connected to the starting points of the teardrop
* (mainly for net info)
*/
ZONE* createTeardrop( TEARDROP_VARIANT aTeardropVariant,
std::vector<wxPoint>& aPoints, PCB_TRACK* aTrack);
/**
* Set priority of created teardrops. smaller have bigger priority
*/
void setTeardropPriorities();
/**
* @return true if a point on a track can be found as anchor point of a teardrop
* @param aStartPoint is the start point of the track found (always inside the teardrop)
* @param aEndPoint is the start point of the track found (always outside the teardrop)
* @param aTrack is the track connected to the pad/via used to search a anchor point
* this reference can be modified if a connected track to the initial track is selected
* @param aViaPad is the via/pad used to build the teardrop
* @param aEffectiveTeardropLen is the actual teardrop length, that can be smaller than expected
* if the connected track length is too small
* @param aFollowTracks = true to use a connected track to aTrack if aTrack is too small
* @param aTrackLookupList is the list of tracks to explore if aFollowTracks = true
* m_lenghtRatio is the lenght of teardrop (ratio pad/via size/teardrop len)
*/
bool findAnchorPointsOnTrack( wxPoint& aStartPoint, wxPoint& aEndPoint,
PCB_TRACK*& aTrack, VIAPAD& aViaPad,
int* aEffectiveTeardropLen,
bool aFollowTracks, TRACK_BUFFER& aTrackLookupList ) const;
private:
bool m_applyToViaPads; // true to add a teardrop to vias and PTH pads
bool m_applyToRoundShapesOnly; // true to add a teardrop to round pads only
bool m_applyToSurfacePads; // true to add a teardrop not drilled pads (like SMD)
bool m_applyToTracks; // true to add a teardrop to connected point of 2 tracks
// having different width
BOARD* m_board;
std::vector<ZONE*> m_createdTdList; // list of new created teardrops
};
// A class to store tracks grouped by layer and netcode
class TRACK_BUFFER
{
public:
TRACK_BUFFER() {}
/**
* Add a track in buffer, in space grouping tracks having the same netcode and the same layer
*/
void AddTrack( PCB_TRACK* aTrack, int aLayer, int aNetcode );
/**
* @return the buffer that stores tracks having the same layer and the same netcode
*/
std::vector<PCB_TRACK*>* GetTrackList( int aLayer, int aNetcode )
{
return m_map_tracks.at( idxFromLayNet( aLayer, aNetcode ) );
}
/**
* @return a reference to the internal buffer
*/
std::map< int, std::vector<PCB_TRACK*>* >& GetBuffer() { return m_map_tracks ; }
static void GetNetcodeAndLayerFromIndex( int aIdx, int* aLayer, int* aNetcode )
{
*aLayer = aIdx & 0xFF;
*aNetcode = aIdx >> 8;
}
private:
// Build an index from the layer id and the netcode, to store a track in buffer
int idxFromLayNet( int aLayer, int aNetcode )
{
return ( aNetcode << 8 ) + ( aLayer & 0xFF );
}
// Track buffer, tracks are grouped by layer+netcode
std::map< int, std::vector<PCB_TRACK*>* > m_map_tracks;
};

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2021 Jean-Pierre Charras, jp.charras at wanadoo.fr
* Copyright (C) 2021 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 <board_design_settings.h>
#include <pcb_track.h>
#include <pad.h>
#include <zone_filler.h>
#include <board_commit.h>
#include "teardrop.h"
#include <geometry/convex_hull.h>
#include <geometry/shape_line_chain.h>
#include <convert_basic_shapes_to_polygon.h>
#include <bezier_curves.h>
#include <wx/log.h>
void TRACK_BUFFER::AddTrack( PCB_TRACK* aTrack, int aLayer, int aNetcode )
{
auto item = m_map_tracks.find( idxFromLayNet( aLayer, aNetcode ) );
std::vector<PCB_TRACK*>* buffer;
if( item == m_map_tracks.end() )
{
buffer = new std::vector<PCB_TRACK*>;
m_map_tracks[idxFromLayNet( aLayer, aNetcode )] = buffer;
}
else
buffer = (*item).second;
buffer->push_back( aTrack );
}
VIAPAD::VIAPAD( PCB_VIA* aVia ) :
m_Parent( aVia )
{
m_Pos = aVia->GetPosition();
m_Width = aVia->GetWidth();
m_Drill = aVia->GetDrillValue();
m_NetCode = aVia->GetNetCode();
m_IsRound = true;
m_IsPad = false;
}
VIAPAD::VIAPAD( PAD* aPad ) :
m_Parent( aPad )
{
m_Pos = aPad->GetPosition();
m_Width = std::min( aPad->GetSize().x, aPad->GetSize().y );
m_Drill = std::min( aPad->GetDrillSizeX(), aPad->GetDrillSizeY() );
m_NetCode = aPad->GetNetCode();
m_IsRound = aPad->GetShape() == PAD_SHAPE::CIRCLE ||
( aPad->GetShape() == PAD_SHAPE::OVAL
&& aPad->GetSize().x == aPad->GetSize().y );
m_IsPad = true;
}
VIAPAD::VIAPAD( PCB_TRACK* aTrack, ENDPOINT_T aEndPoint ) :
m_Parent( aTrack )
{
m_Pos = aEndPoint == ENDPOINT_START ? aTrack->GetStart() : aTrack->GetEnd();
m_Width =aTrack->GetWidth();
m_Drill = 0;
m_NetCode = aTrack->GetNetCode();
m_IsRound = true;
m_IsPad = false;
}
void TEARDROP_MANAGER::collectVias( std::vector< VIAPAD >& aList )
{
for( PCB_TRACK* item : m_board->Tracks() )
{
if( item->Type() != PCB_VIA_T )
continue;
aList.emplace_back( static_cast<PCB_VIA*>( item ) );
}
}
void TEARDROP_MANAGER::collectPadsCandidate( std::vector< VIAPAD >& aList,
bool aRoundShapesOnly,
bool aIncludeNotDrilled )
{
for( FOOTPRINT* fp : m_board->Footprints() )
{
for( PAD* pad : fp->Pads() )
{
if( !pad->IsOnCopperLayer() )
continue;
if( pad->GetNetCode() <= 0 ) // Not connected, so a teardrop cannot be attached
continue;
if( pad->GetShape() == PAD_SHAPE::CUSTOM ) // A teardrop shape cannot be built
continue;
if( aRoundShapesOnly )
{
bool round_shape = pad->GetShape() == PAD_SHAPE::CIRCLE
|| ( pad->GetShape() == PAD_SHAPE::OVAL
&& pad->GetSize().x == pad->GetSize().y );
if( !round_shape )
continue;
}
bool has_hole = pad->GetDrillSizeX() > 0 && pad->GetDrillSizeY() > 0;
if( has_hole || aIncludeNotDrilled )
aList.emplace_back( pad );
}
}
}
void TEARDROP_MANAGER::collectTeardrops( std::vector< ZONE* >& aList )
{
for( ZONE* zone : m_board->Zones() )
{
if( zone->GetZoneName().StartsWith( MAGIC_TEARDROP_BASE_NAME )
|| zone->GetPriority() >= MAGIC_TEARDROP_ZONE_ID )
{
aList.push_back( zone );
}
}
}
bool TEARDROP_MANAGER::isViaAndTrackInSameZone( VIAPAD& aViapad, PCB_TRACK* aTrack ) const
{
for( ZONE* zone: m_board->Zones() )
{
// Skip teardrops
if( zone->GetZoneName().StartsWith( MAGIC_TEARDROP_BASE_NAME )
|| zone->GetPriority() >= MAGIC_TEARDROP_ZONE_ID )
continue;
// Only consider zones on the same layer
if( !zone->IsOnLayer( aTrack->GetLayer() ) )
continue;
if( zone->GetNetCode() == aTrack->GetNetCode() )
{
if( zone->Outline()->Contains( VECTOR2I( aViapad.m_Pos ) ) )
{
// Ensure the pad (if it is a pad) can be connected by the zone
if( aViapad.m_IsPad )
{
PAD *pad = static_cast< PAD* >( aViapad.m_Parent );
if( zone->GetPadConnection( pad ) == ZONE_CONNECTION::NONE )
return false;
}
return true;
}
}
}
return false;
}
PCB_TRACK* TEARDROP_MANAGER::findTouchingTrack( EDA_ITEM_FLAGS& aMatchType, PCB_TRACK* aTrackRef,
const wxPoint& aEndPoint,
TRACK_BUFFER& aTrackLookupList ) const
{
EDA_ITEM_FLAGS match = 0; // to return the end point EDA_ITEM_FLAGS:
// 0, STARTPOINT, ENDPOINT
int matches = 0; // Count of candidates: only 1 is acceptable
PCB_TRACK* candidate = nullptr; // a reference to the track connected
std::vector<PCB_TRACK*>* currlist = aTrackLookupList.GetTrackList( aTrackRef->GetLayer(),
aTrackRef->GetNetCode() );
for( PCB_TRACK* curr_track: *currlist )
{
if( curr_track == aTrackRef )
continue;
match = curr_track->IsPointOnEnds( aEndPoint, m_Parameters.m_tolerance);
if( match )
{
// if faced with a Y junction, stop here
matches++;
if( matches > 1 )
{
aMatchType = 0;
return nullptr;
}
aMatchType = match;
candidate = curr_track;
}
}
return candidate;
}
/**
* @return a vector unit length from aVector
*/
static VECTOR2D NormalizeVector( wxPoint aVector )
{
VECTOR2D vect( aVector );
double norm = vect.EuclideanNorm();
return vect / norm;
}
/*
* Compute the curve part points for teardrops connected to a round shape
* The Bezier curve control points are optimized for a round pad/via shape,
* and do not give a good curve shape for other pad shapes
*/
void TEARDROP_MANAGER::computeCurvedForRoundShape( std::vector<wxPoint>& aPoly,
int aTrackHalfWidth,
VECTOR2D aTrackDir, VIAPAD& aViaPad,
std::vector<wxPoint>& pts ) const
{
// in pts:
// A and B are points on the track ( pts[0] and pts[1] )
// C and E are points on the aViaPad ( pts[2] and pts[4] )
// D is the aViaPad centre ( pts[3] )
double Vpercent = m_Parameters.m_heightRatio;
int td_height = aViaPad.m_Width * Vpercent;
// First, calculate a aVpercent equivalent to the td_height clamped by aTdMaxHeight
// We cannot use the initial aVpercent because it gives bad shape with points
// on aViaPad calculated for a clamped aViaPad size
if( m_Parameters.m_tdMaxHeight > 0 && m_Parameters.m_tdMaxHeight < td_height )
Vpercent *= (double)m_Parameters.m_tdMaxHeight / td_height;
int radius = aViaPad.m_Width / 2;
double minVpercent = double( aTrackHalfWidth ) / radius;
double weaken = (Vpercent - minVpercent) / ( 1 - minVpercent ) / radius;
double biasBC = 0.5 * SEG( pts[1], pts[2] ).Length();
double biasAE = 0.5 * SEG( pts[4], pts[0] ).Length();
wxPoint vecC = pts[2] - aViaPad.m_Pos;
wxPoint tangentC = wxPoint( pts[2].x - vecC.y * biasBC * weaken,
pts[2].y + vecC.x * biasBC * weaken );
wxPoint vecE = pts[4] - aViaPad.m_Pos;
wxPoint tangentE = wxPoint( pts[4].x + vecE.y * biasAE * weaken,
pts[4].y - vecE.x * biasAE * weaken );
wxPoint tangentB = wxPoint( pts[1].x - aTrackDir.x * biasBC, pts[1].y - aTrackDir.y * biasBC );
wxPoint tangentA = wxPoint( pts[0].x - aTrackDir.x * biasAE, pts[0].y - aTrackDir.y * biasAE );
std::vector<wxPoint> curve_pts;
curve_pts.reserve( m_Parameters.m_curveSegCount );
BEZIER_POLY( pts[1], tangentB, tangentC, pts[2] ).GetPoly( curve_pts, 0,
m_Parameters.m_curveSegCount );
for( wxPoint& corner: curve_pts )
aPoly.push_back( corner );
aPoly.push_back( pts[3] );
curve_pts.clear();
BEZIER_POLY( pts[4], tangentE, tangentA, pts[0] ).GetPoly( curve_pts, 0,
m_Parameters.m_curveSegCount );
for( wxPoint& corner: curve_pts )
aPoly.push_back( corner );
}
/*
* Compute the curve part points for teardrops connected to a rectangular/polygonal shape
* The Bezier curve control points are not optimized for a special shape
*/
void TEARDROP_MANAGER::computeCurvedForRectShape( std::vector<wxPoint>& aPoly, int aTdHeight,
int aTrackHalfWidth, VIAPAD& aViaPad,
std::vector<wxPoint>& aPts ) const
{
// in aPts:
// A and B are points on the track ( pts[0] and pts[1] )
// C and E are points on the aViaPad ( pts[2] and pts[4] )
// D is the aViaPad centre ( pts[3] )
// side1 is( aPts[1], aPts[2] ); from track to via
VECTOR2I side1( aPts[2] - aPts[1] ); // vector from track to via
// side2 is ( aPts[4], aPts[0] ); from via to track
VECTOR2I side2( aPts[4] - aPts[0] ); // vector from track to via
std::vector<wxPoint> curve_pts;
curve_pts.reserve( m_Parameters.m_curveSegCount );
// Note: This side is from track to via
wxPoint ctrl1 = ( aPts[1] + aPts[1] + aPts[2] ) / 3;
wxPoint ctrl2 = ( aPts[1] + aPts[2] + aPts[2] ) / 3;
// The control points must be moved toward the polygon inside, in order to give a curved shape
// The move vector is perpendicular to the vertex (side 1 or side 2), and its
// value is delta, depending on the sizes of via and track
int delta = ( aTdHeight / 2 - aTrackHalfWidth );
delta /= 4; // A scaling factor giving a fine shape, defined from tests.
// However for short sides, the value of delta must be reduced, depending
// on the side lenght
// We use here a max delta value = side_lenght/8, defined from tests
int side_lenght = side1.EuclideanNorm();
int delta_effective = std::min( delta, side_lenght/8 );
// The move vector depend on the quadrant: it must be always defined to create a
// curve with a direction toward the track
double angle1 = side1.Angle();
int sign = std::abs( angle1 ) >= 90.0*M_PI/180 ? 1 : -1;
VECTOR2I bias( 0, sign * delta_effective );
bias.Rotate( angle1 );
ctrl1.x += bias.x;
ctrl1.y += bias.y;
ctrl2.x += bias.x;
ctrl2.y += bias.y;
BEZIER_POLY( aPts[1], ctrl1, ctrl2, aPts[2] ).GetPoly( curve_pts, 0,
m_Parameters.m_curveSegCount );
for( wxPoint& corner: curve_pts )
aPoly.push_back( corner );
aPoly.push_back( aPts[3] );
// Note: This side is from via to track
curve_pts.clear();
ctrl1 = ( aPts[4] + aPts[4] + aPts[0] ) / 3;
ctrl2 = ( aPts[4] + aPts[0] + aPts[0] ) / 3;
side_lenght = side2.EuclideanNorm();
delta_effective = std::min( delta, side_lenght/8 );
double angle2 = side2.Angle();
sign = std::abs( angle2 ) <= 90.0*M_PI/180 ? 1 : -1;
bias = VECTOR2I( 0, sign * delta_effective );
bias.Rotate( angle2 );
ctrl1.x += bias.x;
ctrl1.y += bias.y;
ctrl2.x += bias.x;
ctrl2.y += bias.y;
BEZIER_POLY( aPts[4], ctrl1, ctrl2, aPts[0] ).GetPoly( curve_pts, 0,
m_Parameters.m_curveSegCount );
for( wxPoint& corner: curve_pts )
aPoly.push_back( corner );
}
bool TEARDROP_MANAGER::ComputePointsOnPadVia( PCB_TRACK* aTrack,
VIAPAD& aViaPad,
std::vector<wxPoint>& aPts ) const
{
// Compute the 2 anchor points on pad/via of the teardrop shape
PAD* pad = dynamic_cast<PAD*>( aViaPad.m_Parent );
SHAPE_POLY_SET c_buffer;
// aHeightRatio is the factor to calculate the aViaPad teardrop prefered height
// teardrop height = aViaPad size * aHeightRatio (aHeightRatio <= 1.0)
// For rectangular (and similar) shapes, the preferred_height is calculated from the min
// dim of the rectangle = aViaPad.m_Width
int preferred_height = aViaPad.m_Width * m_Parameters.m_heightRatio;
// force_clip_shape = true to force the via/pad polygon to be clipped to follow
// contraints
// Clipping is also needed for rectangular shapes, because the teardrop shape is
// restricted to a polygonal area smaller than the pad area (the teardrop height
// use the smaller value of X and Y sizes).
bool force_clip_shape = m_Parameters.m_heightRatio < 1.0;
// To find the anchor points on via/pad shape, we build the polygonal shape, and clip the polygon
// to the max size (preferred_height or m_tdMaxHeight) by a rectangle centered on the
// axis of the expected teardrop shape.
// (only reduce the size of polygonal shape does not give good anchor points)
if( aViaPad.m_IsRound )
{
TransformCircleToPolygon( c_buffer, aViaPad.m_Pos, aViaPad.m_Width/2 ,
ARC_LOW_DEF, ERROR_INSIDE, 16 );
}
else
{
wxASSERT( pad );
force_clip_shape = true;
preferred_height = aViaPad.m_Width * m_Parameters.m_heightRatio;
pad->TransformShapeWithClearanceToPolygon( c_buffer, aTrack->GetLayer(), 0,
ARC_LOW_DEF, ERROR_INSIDE );
}
// Clip the pad/via shape to match the m_tdMaxHeight constraint, and for
// not rounded pad, clip the shape at the aViaPad.m_Width, i.e. the value
// of the smallest value between size.x and size.y values.
if( force_clip_shape || ( m_Parameters.m_tdMaxHeight > 0
&& m_Parameters.m_tdMaxHeight < preferred_height ) )
{
int halfsize = std::min( m_Parameters.m_tdMaxHeight, preferred_height )/2;
// teardrop_axis is the line from anchor point on the track and the end point
// of the teardrop in the pad/via
// this is the teardrop_axis of the teardrop shape to build
wxPoint ref_on_track = ( aPts[0] + aPts[1] ) / 2;
VECTOR2I teardrop_axis( aPts[3] - ref_on_track );
double orient = teardrop_axis.Angle();
teardrop_axis.Rotate( -orient );
int len = teardrop_axis.EuclideanNorm();
// Build the constraint polygon: a rectangle with
// lenght = dist between the point on track and the pad/via pos
// height = m_tdMaxHeight or aViaPad.m_Width
SHAPE_POLY_SET clipping_rect;
clipping_rect.NewOutline();
// Build a horizontal rect: it will be rotated later
clipping_rect.Append( 0, - halfsize );
clipping_rect.Append( 0, halfsize );
clipping_rect.Append( len, halfsize );
clipping_rect.Append( len, - halfsize );
clipping_rect.Rotate( orient );
clipping_rect.Move( ref_on_track );
// Clip the shape to the max allowed teadrop area
c_buffer.BooleanIntersection( clipping_rect, SHAPE_POLY_SET::PM_FAST );
}
/* in aPts:
* A and B are points on the track ( aPts[0] and aPts[1] )
* C and E are points on the aViaPad ( aPts[2] and aPts[4] )
* D is midpoint behind the aViaPad centre ( aPts[3] )
*/
SHAPE_LINE_CHAIN& padpoly = c_buffer.Outline(0);
std::vector<VECTOR2I> points = padpoly.CPoints();
std::vector<wxPoint> initialPoints;
initialPoints.push_back( aPts[0] );
initialPoints.push_back( aPts[1] );
for( const VECTOR2I& pt: points )
initialPoints.emplace_back( pt.x, pt.y );
std::vector<wxPoint> hull;
BuildConvexHull( hull, initialPoints );
// Search for end points of segments starting at aPts[0] or aPts[1]
// In some cases, in convex hull, only one point (aPts[0] or aPts[1]) is still in list
wxPoint PointC;
wxPoint PointE;
int found_start = -1; // 2 points (one start and one end) should be found
int found_end = -1;
wxPoint start = aPts[0];
wxPoint pend = aPts[1];
for( unsigned ii = 0, jj = 0; jj < hull.size(); ii++, jj++ )
{
unsigned next = ii+ 1;
if( next >= hull.size() )
next = 0;
int prev = ii -1;
if( prev < 0 )
prev = hull.size()-1;
if( hull[ii] == start )
{
// the previous or the next point is candidate:
if( hull[next] != pend )
PointE = hull[next];
else
PointE = hull[prev];
found_start = ii;
}
if( hull[ii] == pend )
{
if( hull[next] != start )
PointC = hull[next];
else
PointC = hull[prev];
found_end = ii;
}
}
if( found_start < 0 ) // PointE was not initalized, because start point does not exit
{
int ii = found_end-1;
if( ii < 0 )
ii = hull.size()-1;
PointE = hull[ii];
}
if( found_end < 0 ) // PointC was not initalized, because pend point does not exit
{
int ii = found_start-1;
if( ii < 0 )
ii = hull.size()-1;
PointC = hull[ii];
}
aPts[2] = PointC;
aPts[4] = PointE;
// Now we have to know if the choice aPts[2] = PointC is the best, or if
// aPts[2] = PointE is better.
// A criteria is to calculate the polygon area in these 2 cases, and choose the case
// that gives the bigger area, because the segments starting at PointC and PointE
// maximize their distance.
SHAPE_LINE_CHAIN dummy1( aPts, true );
double area1 = dummy1.Area();
std::swap( aPts[2], aPts[4] );
SHAPE_LINE_CHAIN dummy2( aPts, true );
double area2 = dummy2.Area();
if( area1 > area2 ) // The first choice (without swapping) is the better.
std::swap( aPts[2], aPts[4] );
return true;
}
bool TEARDROP_MANAGER::findAnchorPointsOnTrack( wxPoint& aStartPoint, wxPoint& aEndPoint,
PCB_TRACK*& aTrack, VIAPAD& aViaPad,
int* aEffectiveTeardropLen,
bool aFollowTracks,
TRACK_BUFFER& aTrackLookupList ) const
{
bool found = true;
wxPoint start = aTrack->GetStart();
wxPoint end = aTrack->GetEnd();
int radius = aViaPad.m_Width / 2;
// Requested length of the teardrop:
int targetLength = aViaPad.m_Width * m_Parameters.m_lenghtRatio;
if( m_Parameters.m_tdMaxLen > 0 )
targetLength = std::min( m_Parameters.m_tdMaxLen, targetLength );
int actualTdLen; // The actual teardrop lenght, limited by the available track lenght
// ensure that start is at the via/pad end
if( SEG( end, aViaPad.m_Pos ).Length() < radius )
{
std::swap( start, end );
}
SHAPE_POLY_SET shapebuffer;
if( aViaPad.m_IsRound )
{
TransformCircleToPolygon( shapebuffer, aViaPad.m_Pos, radius,
ARC_LOW_DEF, ERROR_INSIDE, 16 );
}
else
{
PAD* pad = static_cast<PAD*>( aViaPad.m_Parent );
pad->TransformShapeWithClearanceToPolygon( shapebuffer, aTrack->GetLayer(), 0,
ARC_LOW_DEF, ERROR_INSIDE );
}
SHAPE_LINE_CHAIN& outline = shapebuffer.Outline(0);
outline.SetClosed( true );
// Search the intersection point between the pad/via shape and the current track
// This this the starting point to define the teardrop lenght
SHAPE_LINE_CHAIN::INTERSECTIONS pts;
int pt_count = outline.Intersect( SEG( start, end ), pts );
// Ensure a intersection point was found, otherwise we cannot built the teardrop
// using this track
if( pt_count < 1 )
return false;
VECTOR2I intersect = pts[0].p;
start.x = intersect.x;
start.y = intersect.y;
actualTdLen = std::min( targetLength, SEG( start, end ).Length() );
// If the first track is too short to allow a teardrop having the requested length
// explore the connected track(s)
if( actualTdLen < targetLength && aFollowTracks )
{
int consumed = 0;
while( actualTdLen+consumed < targetLength )
{
EDA_ITEM_FLAGS matchType;
PCB_TRACK* connected_track = findTouchingTrack( matchType, aTrack, end, aTrackLookupList );
if( connected_track == nullptr )
break;
// TODO: stop if angle between old and new segment is > 45 deg to avoid bad shape
consumed += actualTdLen;
actualTdLen = std::min( targetLength-consumed, int( connected_track->GetLength() ) );
aTrack = connected_track;
end = connected_track->GetEnd();
start = connected_track->GetStart();
if( matchType != STARTPOINT )
std::swap( start, end );
// If we do not want to explore more than one connected track, stop search here
break;
}
}
aStartPoint = start;
aEndPoint = end;
*aEffectiveTeardropLen = actualTdLen;
return found;
}
bool TEARDROP_MANAGER::computeTeardropPolygonPoints( std::vector<wxPoint>& aCorners,
PCB_TRACK* aTrack, VIAPAD& aViaPad,
bool aFollowTracks,
TRACK_BUFFER& aTrackLookupList ) const
{
wxPoint start, end; // Start and end points of the track anchor of the teardrop
// the start point is inside the teardrop shape
// the end point is outside.
int track_stub_len; // the dist between the start point and the anchor point
// on the track
// Note: aTrack can be modified if the inital track is too short
if( !findAnchorPointsOnTrack( start, end, aTrack, aViaPad, &track_stub_len,
aFollowTracks, aTrackLookupList ) )
return false;
VECTOR2D vecT = NormalizeVector(end - start);
// find the 2 points on the track, sharp end of the teardrop
int track_halfwidth = aTrack->GetWidth() / 2;
wxPoint pointB = start + wxPoint( vecT.x * track_stub_len + vecT.y * track_halfwidth,
vecT.y * track_stub_len - vecT.x * track_halfwidth );
wxPoint pointA = start + wxPoint( vecT.x * track_stub_len - vecT.y * track_halfwidth,
vecT.y * track_stub_len + vecT.x * track_halfwidth );
// To build a polygonal valid shape pointA and point B must be outside the pad
// It can be inside with some pad shapes having very different X and X sizes
if( !aViaPad.m_IsRound )
{
PAD* pad = static_cast<PAD*>( aViaPad.m_Parent );
if( pad->HitTest( pointA ) )
return false;
if( pad->HitTest( pointB ) )
return false;
}
// Introduce a last point to cover the via centre to ensure it is seen as connected
wxPoint pointD = aViaPad.m_Pos;
// add a small offset in order to have the aViaPad.m_Pos reference point inside
// the teardrop area, just in case...
int offset = Millimeter2iu( 0.001 );
pointD += wxPoint( int( -vecT.x*offset), int(-vecT.y*offset) );
wxPoint pointC, pointE; // Point on PADVIA outlines
std::vector<wxPoint> pts = {pointA, pointB, pointC, pointD, pointE};
ComputePointsOnPadVia( aTrack, aViaPad, pts );
if( m_Parameters.m_curveSegCount <= 2
|| m_Parameters.m_curveOpt == CURVED_OPTION::OPTION_NONE )
{
aCorners = pts;
return true;
}
// See if we can use curved teardrop shape
if( aViaPad.m_IsRound )
computeCurvedForRoundShape( aCorners, track_halfwidth,
vecT, aViaPad, pts );
else if( m_Parameters.m_curveOpt == CURVED_OPTION::OPTION_ALL_PADS )
{
int td_height = aViaPad.m_Width * m_Parameters.m_heightRatio;
if( m_Parameters.m_tdMaxHeight > 0 && m_Parameters.m_tdMaxHeight < td_height )
td_height = m_Parameters.m_tdMaxHeight;
computeCurvedForRectShape( aCorners, td_height, track_halfwidth,
aViaPad, pts );
}
else
aCorners = pts;
return true;
}