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/**
* @file common_plotGERBER_functions.cpp
* @brief Common GERBER plot routines.
*/
#include <fctsys.h>
#include <gr_basic.h>
#include <trigo.h>
#include <wxstruct.h>
#include <base_struct.h>
#include <common.h>
#include <plot_common.h>
#include <macros.h>
#include <kicad_string.h>
#include <build_version.h>
void GERBER_PLOTTER::SetViewport( const wxPoint& aOffset, double aIusPerDecimil,
double aScale, bool aMirror )
{
wxASSERT( !outputFile );
wxASSERT( aMirror == false );
plotMirror = false;
plotOffset = aOffset;
wxASSERT( aScale == 1 );
plotScale = 1;
m_IUsPerDecimil = aIusPerDecimil;
iuPerDeviceUnit = 1.0 / aIusPerDecimil;
/* We don't handle the filmbox, and it's more useful to keep the
* origin at the origin */
paperSize.x = 0;
paperSize.y = 0;
SetDefaultLineWidth( 100 * aIusPerDecimil ); // Arbitrary default
}
/**
* Emit a D-Code record, using proper conversions
* to format a leading zero omitted gerber coordinate
* (for 4 decimal positions, see header generation in start_plot
*/
void GERBER_PLOTTER::emitDcode( const DPOINT& pt, int dcode )
{
fprintf( outputFile, "X%dY%dD%02d*\n",
int( pt.x ), int( pt.y ), dcode );
}
/**
* Function start_plot
* Write GERBER header to file
* initialize global variable g_Plot_PlotOutputFile
*/
bool GERBER_PLOTTER::StartPlot()
{
wxASSERT( outputFile );
finalFile = outputFile; // the actual gerber file will be created later
// Create a temporary filename to store gerber file
// note tmpfile() does not work under Vista and W7 in user mode
m_workFilename = filename + wxT(".tmp");
workFile = wxFopen( m_workFilename, wxT( "wt" ));
outputFile = workFile;
wxASSERT( outputFile );
if( outputFile == NULL )
return false;
wxString Title = creator + wxT( " " ) + GetBuildVersion();
fprintf( outputFile, "G04 (created by %s) date %s*\n",
TO_UTF8( Title ), TO_UTF8( DateAndTime() ) );
/* Mass parameter: unit = INCHES */
fputs( "%MOIN*%\n", outputFile );
/* Set coordinate format to 3.4 absolute, leading zero omitted */
fputs( "G04 Gerber Fmt 3.4, Leading zero omitted, Abs format*\n%FSLAX34Y34*%\n",
outputFile );
/* Specify linear interpol (G01), unit = INCH (G70), abs format (G90) */
fputs( "G01*\nG70*\nG90*\n", outputFile );
fputs( "G04 APERTURE LIST*\n", outputFile );
/* Select the default aperture */
SetCurrentLineWidth( -1 );
return true;
}
bool GERBER_PLOTTER::EndPlot()
{
char line[1024];
wxString msg;
wxASSERT( outputFile );
/* Outfile is actually a temporary file i.e. workFile */
fputs( "M02*\n", outputFile );
fflush( outputFile );
fclose( workFile );
workFile = wxFopen( m_workFilename, wxT( "rt" ));
wxASSERT( workFile );
outputFile = finalFile;
// Placement of apertures in RS274X
while( fgets( line, 1024, workFile ) )
{
fputs( line, outputFile );
if( strcmp( strtok( line, "\n\r" ), "G04 APERTURE LIST*" ) == 0 )
{
writeApertureList();
fputs( "G04 APERTURE END LIST*\n", outputFile );
}
}
fclose( workFile );
fclose( finalFile );
::wxRemoveFile( m_workFilename );
outputFile = 0;
return true;
}
void GERBER_PLOTTER::SetDefaultLineWidth( int width )
{
defaultPenWidth = width;
currentAperture = apertures.end();
}
void GERBER_PLOTTER::SetCurrentLineWidth( int width )
{
int pen_width;
if( width > 0 )
pen_width = width;
else
pen_width = defaultPenWidth;
selectAperture( wxSize( pen_width, pen_width ), APERTURE::Plotting );
currentPenWidth = pen_width;
}
std::vector<APERTURE>::iterator GERBER_PLOTTER::getAperture( const wxSize& size,
APERTURE::APERTURE_TYPE type )
{
int last_D_code = 9;
// Search an existing aperture
std::vector<APERTURE>::iterator tool = apertures.begin();
while( tool != apertures.end() )
{
last_D_code = tool->DCode;
if( (tool->Type == type) && (tool->Size == size) )
return tool;
tool++;
}
// Allocate a new aperture
APERTURE new_tool;
new_tool.Size = size;
new_tool.Type = type;
new_tool.DCode = last_D_code + 1;
apertures.push_back( new_tool );
return apertures.end() - 1;
}
void GERBER_PLOTTER::selectAperture( const wxSize& size,
APERTURE::APERTURE_TYPE type )
{
wxASSERT( outputFile );
if( ( currentAperture == apertures.end() )
|| ( currentAperture->Type != type )
|| ( currentAperture->Size != size ) )
{
// Pick an existing aperture or create a new one
currentAperture = getAperture( size, type );
fprintf( outputFile, "G54D%d*\n", currentAperture->DCode );
}
}
/**
* Generate the table of D codes
*/
void GERBER_PLOTTER::writeApertureList()
{
wxASSERT( outputFile );
char cbuf[1024];
// Init
for( std::vector<APERTURE>::iterator tool = apertures.begin();
tool != apertures.end(); tool++ )
{
const double fscale = 0.0001f * plotScale
* iuPerDeviceUnit ;
char* text = cbuf + sprintf( cbuf, "%%ADD%d", tool->DCode );
/* Please note: the Gerber specs for mass parameters say that
exponential syntax is *not* allowed and the decimal point should
also be always inserted. So the %g format is ruled out, but %f is fine
(the # modifier forces the decimal point). Sadly the %f formatter
can't remove trailing zeros but thats not a problem, since nothing
forbid it (the file is only slightly longer) */
switch( tool->Type )
{
case APERTURE::Circle:
sprintf( text, "C,%#f*%%\n", tool->Size.x * fscale );
break;
case APERTURE::Rect:
sprintf( text, "R,%#fX%#f*%%\n",
tool->Size.x * fscale,
tool->Size.y * fscale );
break;
case APERTURE::Plotting:
sprintf( text, "C,%#f*%%\n", tool->Size.x * fscale );
break;
case APERTURE::Oval:
sprintf( text, "O,%#fX%#f*%%\n",
tool->Size.x * fscale,
tool->Size.y * fscale );
break;
}
fputs( cbuf, outputFile );
}
}
void GERBER_PLOTTER::PenTo( const wxPoint& aPos, char plume )
{
wxASSERT( outputFile );
DPOINT pos_dev = userToDeviceCoordinates( aPos );
switch( plume )
{
case 'Z':
break;
case 'U':
emitDcode( pos_dev, 2 );
break;
case 'D':
emitDcode( pos_dev, 1 );
}
penState = plume;
}
void GERBER_PLOTTER::Rect( const wxPoint& p1, const wxPoint& p2, FILL_T fill,
int width )
{
std::vector< wxPoint > cornerList;
// Build corners list
cornerList.push_back( p1 );
wxPoint corner(p1.x, p2.y);
cornerList.push_back( corner );
cornerList.push_back( p2 );
corner.x = p2.x;
corner.y = p1.y;
cornerList.push_back( corner );
cornerList.push_back( p1 );
PlotPoly( cornerList, fill, width );
}
void GERBER_PLOTTER::Circle( const wxPoint& aCenter, int aDiameter, FILL_T aFill,
int aWidth )
{
Arc( aCenter, 0, 3600, aDiameter / 2, aFill, aWidth );
}
void GERBER_PLOTTER::Arc( const wxPoint& aCenter, double aStAngle, double aEndAngle,
int aRadius, FILL_T aFill, int aWidth )
{
wxASSERT( outputFile );
wxPoint start, end;
start.x = aCenter.x + KiROUND( cosdecideg( aRadius, aStAngle ) );
start.y = aCenter.y - KiROUND( sindecideg( aRadius, aStAngle ) );
SetCurrentLineWidth( aWidth );
MoveTo( start );
end.x = aCenter.x + KiROUND( cosdecideg( aRadius, aEndAngle ) );
end.y = aCenter.y - KiROUND( sindecideg( aRadius, aEndAngle ) );
DPOINT devEnd = userToDeviceCoordinates( end );
DPOINT devCenter = userToDeviceCoordinates( aCenter )
- userToDeviceCoordinates( start );
fprintf( outputFile, "G75*\n" ); // Multiquadrant mode
if( aStAngle < aEndAngle )
fprintf( outputFile, "G03" );
else
fprintf( outputFile, "G02" );
fprintf( outputFile, "X%dY%dI%dJ%dD01*\n", int( devEnd.x ), int( devEnd.y ),
int( devCenter.x ), int( devCenter.y ) );
fprintf( outputFile, "G74*\nG01*\n" ); // Back to single quadrant and linear interp.
}
/**
* Gerber polygon: they can (and *should*) be filled with the
* appropriate G36/G37 sequence (raster fills are deprecated)
*/
void GERBER_PLOTTER::PlotPoly( const std::vector< wxPoint >& aCornerList,
FILL_T aFill, int aWidth )
{
if( aCornerList.size() <= 1 )
return;
SetCurrentLineWidth( aWidth );
if( aFill )
fputs( "G36*\n", outputFile );
MoveTo( aCornerList[0] );
for( unsigned ii = 1; ii < aCornerList.size(); ii++ )
{
LineTo( aCornerList[ii] );
}
if( aFill )
{
FinishTo( aCornerList[0] );
fputs( "G37*\n", outputFile );
}
else
{
PenFinish();
}
}
/**
* Filled circular flashes are stored as apertures
*/
void GERBER_PLOTTER::FlashPadCircle( const wxPoint& pos, int diametre,
EDA_DRAW_MODE_T trace_mode )
{
wxASSERT( outputFile );
wxSize size( diametre, diametre );
switch( trace_mode )
{
case LINE:
case SKETCH:
SetCurrentLineWidth( -1 );
Circle( pos, diametre - currentPenWidth, NO_FILL );
break;
case FILLED:
DPOINT pos_dev = userToDeviceCoordinates( pos );
selectAperture( size, APERTURE::Circle );
emitDcode( pos_dev, 3 );
break;
}
}
/**
* Filled oval flashes are handled as aperture in the 90 degree positions only
*/
void GERBER_PLOTTER::FlashPadOval( const wxPoint& pos, const wxSize& aSize, double orient,
EDA_DRAW_MODE_T trace_mode )
{
wxASSERT( outputFile );
int x0, y0, x1, y1, delta;
wxSize size( aSize );
/* Plot a flashed shape. */
if( ( orient == 0 || orient == 900 || orient == 1800 || orient == 2700 )
&& trace_mode == FILLED )
{
if( orient == 900 || orient == 2700 ) /* orientation turned 90 deg. */
EXCHG( size.x, size.y );
DPOINT pos_dev = userToDeviceCoordinates( pos );
selectAperture( size, APERTURE::Oval );
emitDcode( pos_dev, 3 );
}
else /* Plot pad as a segment. */
{
if( size.x > size.y )
{
EXCHG( size.x, size.y );
if( orient < 2700 )
orient += 900;
else
orient -= 2700;
}
if( trace_mode == FILLED )
{
/* XXX to do: use an aperture macro to declare the rotated pad */
/* The pad is reduced to an oval with dy > dx */
delta = size.y - size.x;
x0 = 0;
y0 = -delta / 2;
x1 = 0;
y1 = delta / 2;
RotatePoint( &x0, &y0, orient );
RotatePoint( &x1, &y1, orient );
ThickSegment( wxPoint( pos.x + x0, pos.y + y0 ),
wxPoint( pos.x + x1, pos.y + y1 ),
size.x, trace_mode );
}
else
{
sketchOval( pos, size, orient, -1 );
}
}
}
/**
* Filled rect flashes are handled as aperture in the 90 degree positions only
*/
void GERBER_PLOTTER::FlashPadRect( const wxPoint& pos, const wxSize& aSize,
double orient, EDA_DRAW_MODE_T trace_mode )
{
wxASSERT( outputFile );
wxSize size( aSize );
// Plot as an aperture flash
switch( int( orient ) )
{
case 900:
case 2700: // rotation of 90 degrees or 270 swaps sizes
EXCHG( size.x, size.y );
// Pass through
case 0:
case 1800:
switch( trace_mode )
{
case LINE:
case SKETCH:
SetCurrentLineWidth( -1 );
Rect( wxPoint( pos.x - (size.x - currentPenWidth) / 2,
pos.y - (size.y - currentPenWidth) / 2 ),
wxPoint( pos.x + (size.x - currentPenWidth) / 2,
pos.y + (size.y - currentPenWidth) / 2 ),
NO_FILL );
break;
case FILLED:
DPOINT pos_dev = userToDeviceCoordinates( pos );
selectAperture( size, APERTURE::Rect );
emitDcode( pos_dev, 3 );
break;
}
break;
default: // plot pad shape as polygon
{
// XXX to do: use an aperture macro to declare the rotated pad
wxPoint coord[4];
// coord[0] is assumed the lower left
// coord[1] is assumed the upper left
// coord[2] is assumed the upper right
// coord[3] is assumed the lower right
/* Trace the outline. */
coord[0].x = -size.x/2; // lower left
coord[0].y = size.y/2;
coord[1].x = -size.x/2; // upper left
coord[1].y = -size.y/2;
coord[2].x = size.x/2; // upper right
coord[2].y = -size.y/2;
coord[3].x = size.x/2; // lower right
coord[3].y = size.y/2;
FlashPadTrapez( pos, coord, orient, trace_mode );
}
break;
}
}
/**
* Trapezoidal pad at the moment are *never* handled as aperture, since
* they require aperture macros
*/
void GERBER_PLOTTER::FlashPadTrapez( const wxPoint& aPadPos, const wxPoint* aCorners,
double aPadOrient, EDA_DRAW_MODE_T aTrace_Mode )
{
// XXX to do: use an aperture macro to declare the pad
// polygon corners list
std::vector< wxPoint > cornerList;
for( int ii = 0; ii < 4; ii++ )
cornerList.push_back( aCorners[ii] );
// Draw the polygon and fill the interior as required
for( unsigned ii = 0; ii < 4; ii++ )
{
RotatePoint( &cornerList[ii], aPadOrient );
cornerList[ii] += aPadPos;
}
// Close the polygon
cornerList.push_back( cornerList[0] );
SetCurrentLineWidth( -1 );
PlotPoly( cornerList, aTrace_Mode==FILLED ? FILLED_SHAPE : NO_FILL );
}
/**
* Change the plot polarity and begin a new layer
* Used to 'scratch off' silk screen away from solder mask
*/
void GERBER_PLOTTER::SetLayerPolarity( bool aPositive )
{
if( aPositive )
fprintf( outputFile, "%%LPD*%%\n" );
else
fprintf( outputFile, "%%LPC*%%\n" );
}
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