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Gerber plotter: better choice of aperture attributes in internal layers.

This commit is contained in:
jean-pierre charras 2020-06-14 18:16:01 +02:00
parent a8d5d9b690
commit b7ec66dc9b
1 changed files with 81 additions and 82 deletions
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79
pcbnew/plot_brditems_plotter.cpp
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@ -1,7 +1,7 @@
/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 1992-2019 KiCad Developers, see AUTHORS.txt for contributors.
* Copyright (C) 1992-2020 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
@ -89,26 +89,32 @@ void BRDITEMS_PLOTTER::PlotPad( D_PAD* aPad, COLOR4D aColor, EDA_DRAW_MODE_T aPl
wxPoint shape_pos = aPad->ShapePos();
GBR_METADATA gbr_metadata;
bool isOnCopperLayer = ( m_layerMask & LSET::AllCuMask() ).any();
bool isOnExternalCopperLayer = ( m_layerMask & LSET::ExternalCuMask() ).any();
bool isPadOnBoardTechLayers = ( aPad->GetLayerSet() & LSET::AllBoardTechMask() ).any();
bool plotOnCopperLayer = ( m_layerMask & LSET::AllCuMask() ).any();
bool plotOnExternalCopperLayer = ( m_layerMask & LSET::ExternalCuMask() ).any();
// Pad not on the solder mask layer cannot be soldered.
// therefore it can have a specific aperture attribute.
// Not yet in use.
// bool isPadOnBoardTechLayers = ( aPad->GetLayerSet() & LSET::AllBoardTechMask() ).any();
gbr_metadata.SetCmpReference( aPad->GetParent()->GetReference() );
if( isOnCopperLayer )
if( plotOnCopperLayer )
{
gbr_metadata.SetNetAttribType( GBR_NETINFO_ALL );
gbr_metadata.SetCopper( true );
// Gives a default attribute, for instance for pads used as tracks in net ties:
// Connector pads and SMD pads are on external layers
// if on internal layers, they are certainly used as net tie
// and are similar to tracks: just conductor items
gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_CONDUCTOR );
if( isOnExternalCopperLayer )
{
const bool useUTF8 = false;
const bool useQuoting = false;
gbr_metadata.SetPadName( aPad->GetName(), useUTF8, useQuoting );
if( !aPad->GetName().IsEmpty() )
gbr_metadata.SetPadPinFunction( aPad->GetPinFunction(), useUTF8, useQuoting );
}
gbr_metadata.SetNetName( aPad->GetNetname() );
@ -118,37 +124,24 @@ void BRDITEMS_PLOTTER::PlotPad( D_PAD* aPad, COLOR4D aColor, EDA_DRAW_MODE_T aPl
if( aPad->GetAttribute() == PAD_ATTRIB_HOLE_NOT_PLATED || aPad->GetName().IsEmpty() )
gbr_metadata.m_NetlistMetadata.m_NotInNet = true;
if( !isOnExternalCopperLayer || !isPadOnBoardTechLayers )
if( !plotOnExternalCopperLayer )
{
// On internal layers one cannot use the GBR_NETLIST_METADATA::GBR_INFO_FLASHED_PAD
// attribute when the component is on an external layer (most of the case)
// Also, if a SMD pad is not on a tech layer (masks) use also net+cmp attribute, because
// it is not really a pad (can be a "pad", actually a node in a virtual component)
// the .P object attribute (GBR_NETLIST_METADATA::GBR_NETINFO_PAD)
// is used on outer layers, unless the component is embedded
// or a "etched" component (fp only drawn, not a physical component)
// Currently, Pcbnew does not handle embedded component, so we disable the .P
// attribute on internal layers
// Note the Gerber doc is not really clear about through holes pads about the .P
gbr_metadata.SetNetAttribType( GBR_NETLIST_METADATA::GBR_NETINFO_NET |
GBR_NETLIST_METADATA::GBR_NETINFO_CMP );
if( !isPadOnBoardTechLayers )
// such a pad is not soldered and is not a connecting point.
// Just set aperture attribute as conductor
// If it is a through hole pad, it will be adjusted later
gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_CONDUCTOR );
switch( aPad->GetAttribute() )
{
case PAD_ATTRIB_HOLE_NOT_PLATED: // Mechanical pad through hole
gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_WASHERPAD );
break;
case PAD_ATTRIB_STANDARD : // Pad through hole, a hole is also expected
gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_VIAPAD );
break;
default:
break;
}
}
else // Some attributes are reserved to the external copper layers
{
// Some attributes are reserved to the external copper layers:
// GBR_APERTURE_ATTRIB_CONNECTORPAD and GBR_APERTURE_ATTRIB_SMDPAD_CUDEF
// for instance.
// Pad with type PAD_ATTRIB_CONN or PAD_ATTRIB_SMD that is not on outer layer
// has its aperture attribute set to GBR_APERTURE_ATTRIB_CONDUCTOR
switch( aPad->GetAttribute() )
{
case PAD_ATTRIB_HOLE_NOT_PLATED: // Mechanical pad through hole
@ -159,19 +152,24 @@ void BRDITEMS_PLOTTER::PlotPad( D_PAD* aPad, COLOR4D aColor, EDA_DRAW_MODE_T aPl
gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_COMPONENTPAD );
break;
case PAD_ATTRIB_CONN: // Connector pads have no solder paste.
case PAD_ATTRIB_CONN: // Connector pads, no solder paste but with solder mask.
if( plotOnExternalCopperLayer )
gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_CONNECTORPAD );
break;
case PAD_ATTRIB_SMD: // SMD pads (One external copper layer only) with solder paste
case PAD_ATTRIB_SMD: // SMD pads (on external copper layer only)
// with solder paste and mask
if( plotOnExternalCopperLayer )
gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_SMDPAD_CUDEF );
break;
}
// Fabrication properties can have specific GBR_APERTURE_METADATA options:
// Fabrication properties can have specific GBR_APERTURE_METADATA options
// that replace previous aperture attribute:
switch( aPad->GetProperty() )
{
case PAD_PROP_BGA:
case PAD_PROP_BGA: // Only applicable to outer layers
if( plotOnExternalCopperLayer )
gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_BGAPAD_CUDEF );
break;
@ -183,7 +181,8 @@ void BRDITEMS_PLOTTER::PlotPad( D_PAD* aPad, COLOR4D aColor, EDA_DRAW_MODE_T aPl
gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_FIDUCIAL_LOCAL );
break;
case PAD_PROP_TESTPOINT: // Only on outer layers
case PAD_PROP_TESTPOINT: // Only applicable to outer layers
if( plotOnExternalCopperLayer )
gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_TESTPOINT );
break;
@ -198,8 +197,8 @@ void BRDITEMS_PLOTTER::PlotPad( D_PAD* aPad, COLOR4D aColor, EDA_DRAW_MODE_T aPl
case PAD_PROP_NONE:
break;
}
}
// Ensure NPTH pads have *always* the GBR_APERTURE_ATTRIB_WASHERPAD attribute
if( aPad->GetAttribute() == PAD_ATTRIB_HOLE_NOT_PLATED )
gbr_metadata.SetApertureAttrib( GBR_APERTURE_METADATA::GBR_APERTURE_ATTRIB_WASHERPAD );
}