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kicad/common/common_plotHPGL_functions.cpp

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/**
* @file common_plotHPGL_functions.cpp
* @brief KiCad: Common plot HPGL Routines
* Filled primitive are not supported, but some could be using HPGL/2
* Since this plot engine is mostly intended for import in external programs,
* sadly HPGL/2 isn't supported a lot... some of the primitives use overlapped
* strokes to fill the shape
*/
/* Some HPGL commands:
* Note: the HPGL unit is 25 micrometers
* All commands MUST be terminated by a semi-colon or a linefeed.
* Spaces can NOT be substituted for required commas in the syntax of a command.
*
*
* AA (Arc Absolute): Angle is a floating point # (requires non integer value)
* Draws an arc with the center at (X,Y).
* A positive angle creates a counter-clockwise arc.
* If the chord angle is specified,
* this will be the number of degrees used for stepping around the arc.
* If no value is given then a default value of five degrees is used.
* AA x, y, a {,b};
*
* AR (Arc Relative):
* AR Dx, Dy, a {, b};
*
* CA (Alternate Character Set):
* CA {n};
*
* CI (Circle):
* CI r {,b};
*
* CP (Character Plot):
* CP {h, v};
* h [-127.9999 .. 127.9999] Anzahl der Zeichen horizontal
* v [-127.9999 .. 127.9999] Anzahl der Zeichen vertikal
*
* CS (Standard Character Set):
* CS {n};
*
* DR (Relative Direction for Label Text):
* DR s, a;
*
* DI (Absolute Direction for Label Text):
* DI {s, a};
*
* DT (Define Terminator - this character becomes unavailable except to terminate a label string.
* Default is ^C control-C):
* DT t;
*
* EA (rEctangle Absolute - Unfilled, from current position to diagonal x,y):
* EA x, y;
*
* ER (rEctangle Relative - Unfilled, from current position to diagonal x,y):
* ER x,y;
*
* FT (Fill Type):
* FT {s {,l {a}}};
*
* IM (Input Mask):
* IM {f};
*
* IN (Initialize): This command instructs the controller to begin processing the HPGL plot file.
* Without this, the commands in the file are received but never executed.
* If multiple IN s are found during execution of the file,
* the controller performs a Pause/Cancel operation.
* All motion from the previous job, yet to be executed, is lost,
* and the new information is executed.
* IN;
*
* IP Input P1 and P2:
* IP {P1x, P1y {, P2x, P2y}};
*
* IW (Input Window):
* IW {XUL, YUL, XOR, YOR};
*
* LB (Label):
* LB c1 .. cn t;
*
* PA (Plot Absolute): Moves to an absolute HPGL position and sets absolute mode for
* future PU and PD commands. If no arguments follow the command,
* only absolute mode is set.
* PA {x1, y1 {{PU|PD|,} ..., ..., xn, yn}};
* P1x, P1y, P2x, P2y [Integer in ASCII]
*
* PD (Pen Down): Executes <current pen> pen then moves to the requested position
* if one is specified. This position is dependent on whether absolute
* or relative mode is set. This command performs no motion in 3-D mode,
* but the outputs and feedrates are affected.
* PD {x, y};
*
* PR (Plot Relative): Moves to the relative position specified and sets relative mode
* for future PU and PD commands.
* If no arguments follow the command, only relative mode is set.
* PR {Dx1, Dy1 {{PU|PD|,} ..., ..., Dxn, Dyn}};
*
* PS (Paper Size):
* PS {n};
*
* PT (Pen Thickness):
* PT {l};
*
* PU (Pen Up): Executes <current pen> pen then moves to the requested position
* if one is specified. This position is dependent on whether absolute
* or relative mode is set.
* This command performs no motion in 3-D mode, but the outputs
* and feedrates are affected.
* PU {x, y};
*
* RA (Rectangle Absolute - Filled, from current position to diagonal x,y):
* RA x, y;
*
* RO (Rotate Coordinate System):
* RO;
*
* RR (Rectangle Relative - Filled, from current position to diagonal x,y):
* RR x, y;
*
* SA (Select Alternate Set):
* SA;
*
* SC (Scale):
* SC {Xmin, Xmax, Ymin, Ymax};
*
* SI (Absolute Character Size):
* SI b, h;
* b [-127.9999 .. 127.9999, keine 0]
* h [-127.9999 .. 127.9999, keine 0]
*
* SL (Character Slant):
* SL {a};
* a [-3.5 .. -0.5, 0.5 .. 3.5]
*
* SP (Select Pen): Selects a new pen or tool for use.
* If no pen number or a value of zero is given,
* the controller performs an EOF (end of file command).
* Once an EOF is performed, no motion is executed,
* until a new IN command is received.
* SP n;
*
* SR (Relative Character Size):
* SR {b, h};
* b [-127.9999 .. 127.9999, keine 0]
* h [-127.9999 .. 127.9999, keine 0]
*
* SS (Select Standard Set):
* SS;
*
* TL (Tick Length):
* TL {tp {, tm}};
*
* UC (User Defined Character):
* UC {i,} x1, y1, {i,} x2, y2, ... {i,} xn, yn;
*
* VS (Velocity Select):
* VS {v {, n}};
* v [1 .. 40]
* n [1 .. 8, je nach Ausstattung]
*
* XT (X Tick):
* XT;
*
* YT (Y Tick):
* YT;
*/
#include <fctsys.h>
#include <gr_basic.h>
#include <trigo.h>
#include <wxstruct.h>
#include <base_struct.h>
#include <plot_common.h>
#include <macros.h>
#include <kicad_string.h>
// HPGL scale factor (1 PLU = 1/40mm = 25 micrometers)
static const double PLUsPERDECIMIL = 0.102041;
HPGL_PLOTTER::HPGL_PLOTTER()
{
SetPenSpeed( 40 ); // Default pen speed = 40 cm/s
SetPenNumber( 1 ); // Default pen num = 1
}
void HPGL_PLOTTER::SetViewport( const wxPoint& aOffset, double aIusPerDecimil,
double aScale, bool aMirror )
{
wxASSERT( !outputFile );
plotOffset = aOffset;
plotScale = aScale;
m_IUsPerDecimil = aIusPerDecimil;
iuPerDeviceUnit = PLUsPERDECIMIL / aIusPerDecimil;
/* Compute the paper size in IUs */
paperSize = pageInfo.GetSizeMils();
paperSize.x *= 10.0 * aIusPerDecimil;
paperSize.y *= 10.0 * aIusPerDecimil;
SetDefaultLineWidth( 0 ); // HPGL has pen sizes instead
m_plotMirror = aMirror;
}
/**
* At the start of the HPGL plot pen speed and number are requested
*/
bool HPGL_PLOTTER::StartPlot()
{
wxASSERT( outputFile );
fprintf( outputFile, "IN;VS%d;PU;PA;SP%d;\n", penSpeed, penNumber );
return true;
}
/**
* HPGL end of plot: pen return and release
*/
bool HPGL_PLOTTER::EndPlot()
{
wxASSERT( outputFile );
fputs( "PU;PA;SP0;\n", outputFile );
fclose( outputFile );
outputFile = NULL;
return true;
}
/**
* HPGL rectangle: fill not supported
*/
void HPGL_PLOTTER::Rect( const wxPoint& p1, const wxPoint& p2, FILL_T fill, int width )
{
wxASSERT( outputFile );
DPOINT p2dev = userToDeviceCoordinates( p2 );
MoveTo( p1 );
fprintf( outputFile, "EA %.0f,%.0f;\n", p2dev.x, p2dev.y );
PenFinish();
}
/**
* HPGL circle: fill not supported
*/
void HPGL_PLOTTER::Circle( const wxPoint& centre, int diameter, FILL_T fill,
int width )
{
wxASSERT( outputFile );
double radius = userToDeviceSize( diameter / 2 );
if( radius > 0 )
{
MoveTo( centre );
fprintf( outputFile, "CI %g;\n", radius );
PenFinish();
}
}
/**
* HPGL polygon: fill not supported (but closed, at least)
*/
void HPGL_PLOTTER::PlotPoly( const std::vector<wxPoint>& aCornerList,
FILL_T aFill, int aWidth )
{
if( aCornerList.size() <= 1 )
return;
MoveTo( aCornerList[0] );
for( unsigned ii = 1; ii < aCornerList.size(); ii++ )
LineTo( aCornerList[ii] );
// Close polygon if filled.
if( aFill )
{
int ii = aCornerList.size() - 1;
if( aCornerList[ii] != aCornerList[0] )
LineTo( aCornerList[0] );
}
PenFinish();
}
/**
* Pen control logic (remove redundant pen activations)
*/
void HPGL_PLOTTER::penControl( char plume )
{
wxASSERT( outputFile );
switch( plume )
{
case 'U':
if( penState != 'U' )
{
fputs( "PU;", outputFile );
penState = 'U';
}
break;
case 'D':
if( penState != 'D' )
{
fputs( "PD;", outputFile );
penState = 'D';
}
break;
case 'Z':
fputs( "PU;", outputFile );
penState = 'U';
penLastpos.x = -1;
penLastpos.y = -1;
break;
}
}
void HPGL_PLOTTER::PenTo( const wxPoint& pos, char plume )
{
wxASSERT( outputFile );
if( plume == 'Z' )
{
penControl( 'Z' );
return;
}
penControl( plume );
DPOINT pos_dev = userToDeviceCoordinates( pos );
if( penLastpos != pos )
fprintf( outputFile, "PA %.0f,%.0f;\n", pos_dev.x, pos_dev.y );
penLastpos = pos;
}
/**
* HPGL supports dashed lines
*/
void HPGL_PLOTTER::SetDash( bool dashed )
{
wxASSERT( outputFile );
if( dashed )
fputs( "LI 2;\n", outputFile );
else
fputs( "LI;\n", outputFile );
}
void HPGL_PLOTTER::ThickSegment( const wxPoint& start, const wxPoint& end,
int width, EDA_DRAW_MODE_T tracemode )
{
wxASSERT( outputFile );
wxPoint center;
wxSize size;
// Suppress overlap if pen is too big or in line mode
if( (penDiameter >= width) || (tracemode == LINE) )
{
MoveTo( start );
FinishTo( end );
}
else
segmentAsOval( start, end, width, tracemode );
}
/* Plot an arc:
* Center = center coord
* Stangl, endAngle = angle of beginning and end
* Radius = radius of the arc
* Command
* PU PY x, y; PD start_arc_X AA, start_arc_Y, angle, NbSegm; PU;
* Or PU PY x, y; PD start_arc_X AA, start_arc_Y, angle, PU;
*/
void HPGL_PLOTTER::Arc( const wxPoint& centre, double StAngle, double EndAngle, int radius,
FILL_T fill, int width )
{
wxASSERT( outputFile );
double angle;
if( radius <= 0 )
return;
DPOINT centre_dev = userToDeviceCoordinates( centre );
if( m_plotMirror )
angle = StAngle - EndAngle;
else
angle = EndAngle - StAngle;
NORMALIZE_ANGLE_180( angle );
angle /= 10;
// Calculate arc start point:
wxPoint cmap;
cmap.x = centre.x + KiROUND( cosdecideg( radius, StAngle ) );
cmap.y = centre.y - KiROUND( sindecideg( radius, StAngle ) );
DPOINT cmap_dev = userToDeviceCoordinates( cmap );
fprintf( outputFile,
"PU;PA %.0f,%.0f;PD;AA %.0f,%.0f,",
cmap_dev.x, cmap_dev.y,
centre_dev.x, centre_dev.y );
fprintf( outputFile, "%.0f", angle );
fprintf( outputFile, ";PU;\n" );
PenFinish();
}
/* Plot oval pad.
*/
void HPGL_PLOTTER::FlashPadOval( const wxPoint& pos, const wxSize& aSize, double orient,
EDA_DRAW_MODE_T trace_mode )
{
wxASSERT( outputFile );
int deltaxy, cx, cy;
wxSize size( aSize );
/* The pad is reduced to an oval with size.y > size.x
* (Oval vertical orientation 0)
*/
if( size.x > size.y )
{
EXCHG( size.x, size.y );
orient = AddAngles( orient, 900 );
}
deltaxy = size.y - size.x; // distance between centers of the oval
if( trace_mode == FILLED )
{
FlashPadRect( pos, wxSize( size.x, deltaxy + KiROUND( penDiameter ) ),
orient, trace_mode );
cx = 0; cy = deltaxy / 2;
RotatePoint( &cx, &cy, orient );
FlashPadCircle( wxPoint( cx + pos.x, cy + pos.y ), size.x, trace_mode );
cx = 0; cy = -deltaxy / 2;
RotatePoint( &cx, &cy, orient );
FlashPadCircle( wxPoint( cx + pos.x, cy + pos.y ), size.x, trace_mode );
}
else // Plot in SKETCH mode.
{
sketchOval( pos, size, orient, KiROUND( penDiameter ) );
}
}
/* Plot round pad or via.
*/
void HPGL_PLOTTER::FlashPadCircle( const wxPoint& pos, int diametre,
EDA_DRAW_MODE_T trace_mode )
{
wxASSERT( outputFile );
DPOINT pos_dev = userToDeviceCoordinates( pos );
int delta = KiROUND( penDiameter - penOverlap );
int radius = diametre / 2;
if( trace_mode != LINE )
{
radius = ( diametre - KiROUND( penDiameter ) ) / 2;
}
if( radius < 0 )
{
radius = 0;
}
double rsize = userToDeviceSize( radius );
fprintf( outputFile, "PA %.0f,%.0f;CI %.0f;\n",
pos_dev.x, pos_dev.y, rsize );
if( trace_mode == FILLED ) // Plot in filled mode.
{
if( delta > 0 )
{
while( (radius -= delta ) >= 0 )
{
rsize = userToDeviceSize( radius );
fprintf( outputFile, "PA %.0f,%.0f;CI %.0f;\n",
pos_dev.x, pos_dev.y, rsize );
}
}
}
PenFinish();
}
void HPGL_PLOTTER::FlashPadRect( const wxPoint& pos, const wxSize& padsize,
double orient, EDA_DRAW_MODE_T trace_mode )
{
wxASSERT( outputFile );
wxSize size;
int delta;
int ox, oy, fx, fy;
size.x = padsize.x / 2;
size.y = padsize.y / 2;
if( trace_mode != LINE )
{
size.x = (padsize.x - (int) penDiameter) / 2;
size.y = (padsize.y - (int) penDiameter) / 2;
}
if( size.x < 0 )
size.x = 0;
if( size.y < 0 )
size.y = 0;
// If a dimension is zero, the trace is reduced to 1 line.
if( size.x == 0 )
{
ox = pos.x;
oy = pos.y - size.y;
RotatePoint( &ox, &oy, pos.x, pos.y, orient );
fx = pos.x;
fy = pos.y + size.y;
RotatePoint( &fx, &fy, pos.x, pos.y, orient );
MoveTo( wxPoint( ox, oy ) );
FinishTo( wxPoint( fx, fy ) );
return;
}
if( size.y == 0 )
{
ox = pos.x - size.x;
oy = pos.y;
RotatePoint( &ox, &oy, pos.x, pos.y, orient );
fx = pos.x + size.x;
fy = pos.y;
RotatePoint( &fx, &fy, pos.x, pos.y, orient );
MoveTo( wxPoint( ox, oy ) );
FinishTo( wxPoint( fx, fy ) );
return;
}
ox = pos.x - size.x;
oy = pos.y - size.y;
RotatePoint( &ox, &oy, pos.x, pos.y, orient );
MoveTo( wxPoint( ox, oy ) );
fx = pos.x - size.x;
fy = pos.y + size.y;
RotatePoint( &fx, &fy, pos.x, pos.y, orient );
LineTo( wxPoint( fx, fy ) );
fx = pos.x + size.x;
fy = pos.y + size.y;
RotatePoint( &fx, &fy, pos.x, pos.y, orient );
LineTo( wxPoint( fx, fy ) );
fx = pos.x + size.x;
fy = pos.y - size.y;
RotatePoint( &fx, &fy, pos.x, pos.y, orient );
LineTo( wxPoint( fx, fy ) );
FinishTo( wxPoint( ox, oy ) );
if( trace_mode == FILLED )
{
// Plot in filled mode.
delta = (int) (penDiameter - penOverlap);
if( delta > 0 )
while( (size.x > 0) && (size.y > 0) )
{
size.x -= delta;
size.y -= delta;
if( size.x < 0 )
size.x = 0;
if( size.y < 0 )
size.y = 0;
ox = pos.x - size.x;
oy = pos.y - size.y;
RotatePoint( &ox, &oy, pos.x, pos.y, orient );
MoveTo( wxPoint( ox, oy ) );
fx = pos.x - size.x;
fy = pos.y + size.y;
RotatePoint( &fx, &fy, pos.x, pos.y, orient );
LineTo( wxPoint( fx, fy ) );
fx = pos.x + size.x;
fy = pos.y + size.y;
RotatePoint( &fx, &fy, pos.x, pos.y, orient );
LineTo( wxPoint( fx, fy ) );
fx = pos.x + size.x;
fy = pos.y - size.y;
RotatePoint( &fx, &fy, pos.x, pos.y, orient );
LineTo( wxPoint( fx, fy ) );
FinishTo( wxPoint( ox, oy ) );
}
}
}
void HPGL_PLOTTER::FlashPadTrapez( const wxPoint& aPadPos, const wxPoint* aCorners,
double aPadOrient, EDA_DRAW_MODE_T aTrace_Mode )
{
wxASSERT( outputFile );
wxPoint polygone[4]; // coordinates of corners relatives to the pad
wxPoint coord[4]; // absolute coordinates of corners (coordinates in plotter space)
int move;
move = KiROUND( penDiameter );
for( int ii = 0; ii < 4; ii++ )
polygone[ii] = aCorners[ii];
// polygone[0] is assumed the lower left
// polygone[1] is assumed the upper left
// polygone[2] is assumed the upper right
// polygone[3] is assumed the lower right
// Plot the outline:
for( int ii = 0; ii < 4; ii++ )
{
coord[ii] = polygone[ii];
RotatePoint( &coord[ii], aPadOrient );
coord[ii] += aPadPos;
}
MoveTo( coord[0] );
LineTo( coord[1] );
LineTo( coord[2] );
LineTo( coord[3] );
FinishTo( coord[0] );
// Fill shape:
if( aTrace_Mode == FILLED )
{
// TODO: replace this par the HPGL plot polygon.
int jj;
// Fill the shape
move = KiROUND( penDiameter - penOverlap );
// Calculate fill height.
if( polygone[0].y == polygone[3].y ) // Horizontal
{
jj = polygone[3].y - (int) ( penDiameter + ( 2 * penOverlap ) );
}
else // vertical
{
jj = polygone[3].x - (int) ( penDiameter + ( 2 * penOverlap ) );
}
// Calculation of dd = number of segments was traced to fill.
jj = jj / (int) ( penDiameter - penOverlap );
// Trace the outline.
for( ; jj > 0; jj-- )
{
polygone[0].x += move;
polygone[0].y -= move;
polygone[1].x += move;
polygone[1].y += move;
polygone[2].x -= move;
polygone[2].y += move;
polygone[3].x -= move;
polygone[3].y -= move;
// Test for crossed vertexes.
if( polygone[0].x > polygone[3].x ) /* X axis intersection on
* vertexes 0 and 3 */
{
polygone[0].x = polygone[3].x = 0;
}
if( polygone[1].x > polygone[2].x ) /* X axis intersection on
* vertexes 1 and 2 */
{
polygone[1].x = polygone[2].x = 0;
}
if( polygone[1].y > polygone[0].y ) /* Y axis intersection on
* vertexes 0 and 1 */
{
polygone[0].y = polygone[1].y = 0;
}
if( polygone[2].y > polygone[3].y ) /* Y axis intersection on
* vertexes 2 and 3 */
{
polygone[2].y = polygone[3].y = 0;
}
for( int ii = 0; ii < 4; ii++ )
{
coord[ii] = polygone[ii];
RotatePoint( &coord[ii], aPadOrient );
coord[ii] += aPadPos;
}
MoveTo( coord[0] );
LineTo( coord[1] );
LineTo( coord[2] );
LineTo( coord[3] );
FinishTo( coord[0] );
}
}
}
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